utsushi fails to scan with DS-40 on NixOS

Describe the bug

utsushi/sane fails to scan

paper is fed into machine, fails to create PDF with cryptic error message "operation was cancelled"

Expected behavior

utsushi/sane should be able to create PDFs when scanning.

Screenshots

SANE_DEBUG_DLL=4 scanimage -T

[17:20:15.964978] [sanei_debug] Setting debug level of dll to 4.
[17:20:15.965264] [dll] sane_init: SANE dll backend version 1.0.13 from sane-backends 1.0.30
[17:20:15.965304] [dll] sane_init/read_dlld: attempting to open directory `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/etc/sane.d/dll.d'
[17:20:15.965347] [dll] sane_init/read_dlld: using config directory `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/etc/sane.d/dll.d'
[17:20:15.965418] [dll] add_backend: adding backend `net'
[17:20:15.965446] [dll] add_backend: adding backend `abaton'
[17:20:15.965467] [dll] add_backend: adding backend `agfafocus'
[17:20:15.965486] [dll] add_backend: adding backend `apple'
[17:20:15.965506] [dll] add_backend: adding backend `artec'
[17:20:15.965526] [dll] add_backend: adding backend `artec_eplus48u'
[17:20:15.965547] [dll] add_backend: adding backend `as6e'
[17:20:15.965567] [dll] add_backend: adding backend `avision'
[17:20:15.965587] [dll] add_backend: adding backend `bh'
[17:20:15.965608] [dll] add_backend: adding backend `canon'
[17:20:15.965629] [dll] add_backend: adding backend `canon630u'
[17:20:15.965648] [dll] add_backend: adding backend `canon_dr'
[17:20:15.965669] [dll] add_backend: adding backend `cardscan'
[17:20:15.965689] [dll] add_backend: adding backend `coolscan'
[17:20:15.965710] [dll] add_backend: adding backend `coolscan3'
[17:20:15.965731] [dll] add_backend: adding backend `dell1600n_net'
[17:20:15.965751] [dll] add_backend: adding backend `dmc'
[17:20:15.965772] [dll] add_backend: adding backend `epjitsu'
[17:20:15.965793] [dll] add_backend: adding backend `epson2'
[17:20:15.965813] [dll] add_backend: adding backend `epsonds'
[17:20:15.965834] [dll] add_backend: adding backend `escl'
[17:20:15.965855] [dll] add_backend: adding backend `fujitsu'
[17:20:15.965877] [dll] add_backend: adding backend `genesys'
[17:20:15.965897] [dll] add_backend: adding backend `gt68xx'
[17:20:15.965918] [dll] add_backend: adding backend `hp'
[17:20:15.965939] [dll] add_backend: adding backend `hp3500'
[17:20:15.965965] [dll] add_backend: adding backend `hp3900'
[17:20:15.965987] [dll] add_backend: adding backend `hp4200'
[17:20:15.966040] [dll] add_backend: adding backend `hp5400'
[17:20:15.966067] [dll] add_backend: adding backend `hp5590'
[17:20:15.966089] [dll] add_backend: adding backend `hpljm1005'
[17:20:15.966111] [dll] add_backend: adding backend `hpsj5s'
[17:20:15.966147] [dll] add_backend: adding backend `hs2p'
[17:20:15.966182] [dll] add_backend: adding backend `ibm'
[17:20:15.966215] [dll] add_backend: adding backend `kodak'
[17:20:15.966248] [dll] add_backend: adding backend `kodakaio'
[17:20:15.966279] [dll] add_backend: adding backend `kvs1025'
[17:20:15.966312] [dll] add_backend: adding backend `kvs20xx'
[17:20:15.966351] [dll] add_backend: adding backend `kvs40xx'
[17:20:15.966389] [dll] add_backend: adding backend `leo'
[17:20:15.966416] [dll] add_backend: adding backend `lexmark'
[17:20:15.966436] [dll] add_backend: adding backend `ma1509'
[17:20:15.966457] [dll] add_backend: adding backend `magicolor'
[17:20:15.966478] [dll] add_backend: adding backend `matsushita'
[17:20:15.966499] [dll] add_backend: adding backend `microtek'
[17:20:15.966519] [dll] add_backend: adding backend `microtek2'
[17:20:15.966540] [dll] add_backend: adding backend `mustek'
[17:20:15.966560] [dll] add_backend: adding backend `mustek_usb'
[17:20:15.966581] [dll] add_backend: adding backend `mustek_usb2'
[17:20:15.966611] [dll] add_backend: adding backend `nec'
[17:20:15.966634] [dll] add_backend: adding backend `niash'
[17:20:15.966656] [dll] add_backend: adding backend `pie'
[17:20:15.966676] [dll] add_backend: adding backend `pieusb'
[17:20:15.966697] [dll] add_backend: adding backend `pint'
[17:20:15.966718] [dll] add_backend: adding backend `pixma'
[17:20:15.966739] [dll] add_backend: adding backend `plustek'
[17:20:15.966760] [dll] add_backend: adding backend `qcam'
[17:20:15.966780] [dll] add_backend: adding backend `ricoh'
[17:20:15.966802] [dll] add_backend: adding backend `ricoh2'
[17:20:15.966823] [dll] add_backend: adding backend `rts8891'
[17:20:15.966858] [dll] add_backend: adding backend `s9036'
[17:20:15.966881] [dll] add_backend: adding backend `sceptre'
[17:20:15.966903] [dll] add_backend: adding backend `sharp'
[17:20:15.966924] [dll] add_backend: adding backend `sm3600'
[17:20:15.966945] [dll] add_backend: adding backend `sm3840'
[17:20:15.966966] [dll] add_backend: adding backend `snapscan'
[17:20:15.966987] [dll] add_backend: adding backend `sp15c'
[17:20:15.967031] [dll] add_backend: adding backend `tamarack'
[17:20:15.967055] [dll] add_backend: adding backend `teco1'
[17:20:15.967080] [dll] add_backend: adding backend `teco2'
[17:20:15.967102] [dll] add_backend: adding backend `teco3'
[17:20:15.967124] [dll] add_backend: adding backend `u12'
[17:20:15.967158] [dll] add_backend: adding backend `umax'
[17:20:15.967182] [dll] add_backend: adding backend `umax1220u'
[17:20:15.967204] [dll] add_backend: adding backend `v4l'
[17:20:15.967226] [dll] add_backend: adding backend `xerox_mfp'
[17:20:15.967249] [dll] add_backend: adding backend `utsushi'
Output format is not set, using pnm as a default.
[17:20:15.967313] [dll] sane_get_devices
[17:20:15.967340] [dll] load: searching backend `utsushi' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:15.967361] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-utsushi.so.1'
[17:20:15.967402] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-utsushi.so.1'
[17:20:15.992597] [dll] init: initializing backend `utsushi'
[17:20:15.992658] [dll] init: backend `utsushi' is version 1.1.0
[17:20:16.085222] [dll] load: searching backend `xerox_mfp' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.085246] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-xerox_mfp.so.1'
[17:20:16.085258] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-xerox_mfp.so.1'
[17:20:16.085365] [dll] init: initializing backend `xerox_mfp'
[17:20:16.086913] [dll] init: backend `xerox_mfp' is version 1.0.13
[17:20:16.086971] [dll] load: searching backend `v4l' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.086979] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-v4l.so.1'
[17:20:16.086988] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-v4l.so.1'
[17:20:16.087176] [dll] init: initializing backend `v4l'
[17:20:16.087203] [dll] init: backend `v4l' is version 1.0.5
[17:20:16.087211] [dll] load: searching backend `umax1220u' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.087217] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-umax1220u.so.1'
[17:20:16.087226] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-umax1220u.so.1'
[17:20:16.087294] [dll] init: initializing backend `umax1220u'
[17:20:16.087340] [dll] init: backend `umax1220u' is version 1.0.2
[17:20:16.087348] [dll] load: searching backend `umax' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.087353] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-umax.so.1'
[17:20:16.087361] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-umax.so.1'
[17:20:16.087439] [dll] init: initializing backend `umax'
[17:20:16.087543] [dll] init: backend `umax' is version 1.0.45
[17:20:16.087557] [dll] load: searching backend `u12' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.087562] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-u12.so.1'
[17:20:16.087571] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-u12.so.1'
[17:20:16.087640] [dll] init: initializing backend `u12'
[17:20:16.087693] [dll] init: backend `u12' is version 1.0.0
[17:20:16.087700] [dll] load: searching backend `teco3' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.087706] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-teco3.so.1'
[17:20:16.087714] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-teco3.so.1'
[17:20:16.087769] [dll] init: initializing backend `teco3'
[17:20:16.087808] [dll] init: backend `teco3' is version 1.0.1
[17:20:16.087815] [dll] load: searching backend `teco2' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.087820] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-teco2.so.1'
[17:20:16.087828] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-teco2.so.1'
[17:20:16.087881] [dll] init: initializing backend `teco2'
[17:20:16.087935] [dll] init: backend `teco2' is version 1.0.10
[17:20:16.087943] [dll] load: searching backend `teco1' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.087949] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-teco1.so.1'
[17:20:16.087957] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-teco1.so.1'
[17:20:16.088014] [dll] init: initializing backend `teco1'
[17:20:16.088057] [dll] init: backend `teco1' is version 1.0.10
[17:20:16.088064] [dll] load: searching backend `tamarack' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088069] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-tamarack.so.1'
[17:20:16.088077] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-tamarack.so.1'
[17:20:16.088135] [dll] init: initializing backend `tamarack'
[17:20:16.088163] [dll] init: backend `tamarack' is version 1.0.0
[17:20:16.088170] [dll] load: searching backend `sp15c' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088175] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sp15c.so.1'
[17:20:16.088183] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sp15c.so.1'
[17:20:16.088239] [dll] init: initializing backend `sp15c'
[17:20:16.088259] [dll] init: backend `sp15c' is version 1.0.0
[17:20:16.088265] [dll] load: searching backend `snapscan' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088270] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-snapscan.so.1'
[17:20:16.088278] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-snapscan.so.1'
[17:20:16.088350] [dll] init: initializing backend `snapscan'
[17:20:16.088422] [dll] init: backend `snapscan' is version 1.4.53
[17:20:16.088433] [dll] load: searching backend `sm3840' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088439] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sm3840.so.1'
[17:20:16.088447] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sm3840.so.1'
[17:20:16.088510] [dll] init: initializing backend `sm3840'
[17:20:16.088544] [dll] init: backend `sm3840' is version 1.0.0
[17:20:16.088552] [dll] load: searching backend `sm3600' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088557] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sm3600.so.1'
[17:20:16.088565] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sm3600.so.1'
[17:20:16.088626] [dll] init: initializing backend `sm3600'
[17:20:16.088659] [dll] init: backend `sm3600' is version 1.0.6
[17:20:16.088666] [dll] load: searching backend `sharp' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088671] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sharp.so.1'
[17:20:16.088680] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sharp.so.1'
[17:20:16.088737] [dll] init: initializing backend `sharp'
[17:20:16.088772] [dll] init: backend `sharp' is version 1.0.0
[17:20:16.088779] [dll] load: searching backend `sceptre' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088784] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sceptre.so.1'
[17:20:16.088793] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-sceptre.so.1'
[17:20:16.088845] [dll] init: initializing backend `sceptre'
[17:20:16.088875] [dll] init: backend `sceptre' is version 1.0.10
[17:20:16.088883] [dll] load: searching backend `s9036' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088889] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-s9036.so.1'
[17:20:16.088897] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-s9036.so.1'
[17:20:16.088952] [dll] init: initializing backend `s9036'
[17:20:16.088978] [dll] init: backend `s9036' is version 1.0.0
[17:20:16.088985] [dll] load: searching backend `rts8891' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.088991] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-rts8891.so.1'
[17:20:16.089183] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-rts8891.so.1'
[17:20:16.089261] [dll] init: initializing backend `rts8891'
[17:20:16.089310] [dll] init: backend `rts8891' is version 1.0.2401
[17:20:16.089345] [dll] load: searching backend `ricoh2' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.089352] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ricoh2.so.1'
[17:20:16.089360] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ricoh2.so.1'
[17:20:16.089421] [dll] init: initializing backend `ricoh2'
[17:20:16.089455] [dll] init: backend `ricoh2' is version 1.0.0
[17:20:16.089466] [dll] load: searching backend `ricoh' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.089471] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ricoh.so.1'
[17:20:16.089480] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ricoh.so.1'
[17:20:16.089534] [dll] init: initializing backend `ricoh'
[17:20:16.089560] [dll] init: backend `ricoh' is version 1.0.0
[17:20:16.089567] [dll] load: searching backend `qcam' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.089572] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-qcam.so.1'
[17:20:16.089580] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-qcam.so.1'
[17:20:16.089631] [dll] init: initializing backend `qcam'
[17:20:16.089649] [dll] init: backend `qcam' is version 1.0.0
[17:20:16.089655] [dll] load: searching backend `plustek' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.089660] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-plustek.so.1'
[17:20:16.089668] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-plustek.so.1'
[17:20:16.089743] [dll] init: initializing backend `plustek'
[17:20:16.089869] [dll] init: backend `plustek' is version 1.0.0
[17:20:16.089877] [dll] load: searching backend `pixma' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.089883] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pixma.so.1'
[17:20:16.089890] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pixma.so.1'
[17:20:16.089987] [dll] init: initializing backend `pixma'
[17:20:16.090038] [dll] init: backend `pixma' is version 1.0.27
[17:20:16.611242] [dll] load: searching backend `pint' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.611350] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pint.so.1'
[17:20:16.611405] [dll] load: couldn't open `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pint.so.1' (No such file or directory)
[17:20:16.611433] [dll] load: trying to load `/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane/libsane-pint.so.1'
[17:20:16.611524] [dll] load: couldn't open `/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane/libsane-pint.so.1' (No such file or directory)
[17:20:16.611556] [dll] load: couldn't find backend `pint' (No such file or directory)
[17:20:16.611582] [dll] load: searching backend `pieusb' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.611606] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pieusb.so.1'
[17:20:16.611657] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pieusb.so.1'
[17:20:16.612312] [dll] init: initializing backend `pieusb'
[17:20:16.612654] [dll] init: backend `pieusb' is version 1.0.1
[17:20:16.612696] [dll] load: searching backend `pie' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.612722] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pie.so.1'
[17:20:16.612788] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-pie.so.1'
[17:20:16.613143] [dll] init: initializing backend `pie'
[17:20:16.613348] [dll] init: backend `pie' is version 1.0.9
[17:20:16.613390] [dll] load: searching backend `niash' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.613419] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-niash.so.1'
[17:20:16.613460] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-niash.so.1'
[17:20:16.613794] [dll] init: initializing backend `niash'
[17:20:16.613992] [dll] init: backend `niash' is version 1.0.1
[17:20:16.614054] [dll] load: searching backend `nec' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.614080] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-nec.so.1'
[17:20:16.614122] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-nec.so.1'
[17:20:16.614424] [dll] init: initializing backend `nec'
[17:20:16.614557] [dll] init: backend `nec' is version 1.0.0
[17:20:16.614594] [dll] load: searching backend `mustek_usb2' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.614619] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-mustek_usb2.so.1'
[17:20:16.614657] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-mustek_usb2.so.1'
[17:20:16.614978] [dll] init: initializing backend `mustek_usb2'
[17:20:16.615060] [dll] init: backend `mustek_usb2' is version 1.0.10
[17:20:16.615227] [dll] load: searching backend `mustek_usb' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.615261] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-mustek_usb.so.1'
[17:20:16.615301] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-mustek_usb.so.1'
[17:20:16.615609] [dll] init: initializing backend `mustek_usb'
[17:20:16.615862] [dll] init: backend `mustek_usb' is version 1.0.18
[17:20:16.615901] [dll] load: searching backend `mustek' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.615926] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-mustek.so.1'
[17:20:16.615964] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-mustek.so.1'
[17:20:16.616556] [dll] init: initializing backend `mustek'
[17:20:16.616810] [dll] init: backend `mustek' is version 1.0.138
[17:20:16.616821] [dll] load: searching backend `microtek2' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.616828] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-microtek2.so.1'
[17:20:16.616840] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-microtek2.so.1'
[17:20:16.616936] [dll] init: initializing backend `microtek2'
[17:20:16.616989] [dll] init: backend `microtek2' is version 1.0.0
[17:20:16.617007] [dll] load: searching backend `microtek' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.617016] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-microtek.so.1'
[17:20:16.617033] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-microtek.so.1'
[17:20:16.617121] [dll] init: initializing backend `microtek'
[17:20:16.617163] [dll] init: backend `microtek' is version 1.0.0
[17:20:16.617173] [dll] load: searching backend `matsushita' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.617180] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-matsushita.so.1'
[17:20:16.617192] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-matsushita.so.1'
[17:20:16.617274] [dll] init: initializing backend `matsushita'
[17:20:16.617334] [dll] init: backend `matsushita' is version 1.0.7
[17:20:16.617344] [dll] load: searching backend `magicolor' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:16.617351] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-magicolor.so.1'
[17:20:16.617363] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-magicolor.so.1'
[17:20:16.618087] [dll] init: initializing backend `magicolor'
[17:20:16.618143] [dll] init: backend `magicolor' is version 1.0.1
[17:20:18.129772] [dll] load: searching backend `ma1509' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.129863] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ma1509.so.1'
[17:20:18.129916] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ma1509.so.1'
[17:20:18.130369] [dll] init: initializing backend `ma1509'
[17:20:18.130663] [dll] init: backend `ma1509' is version 1.0.3
[17:20:18.130705] [dll] load: searching backend `lexmark' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.130730] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-lexmark.so.1'
[17:20:18.130769] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-lexmark.so.1'
[17:20:18.131141] [dll] init: initializing backend `lexmark'
[17:20:18.131369] [dll] init: backend `lexmark' is version 1.0.32
[17:20:18.131528] [dll] load: searching backend `leo' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.131559] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-leo.so.1'
[17:20:18.131592] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-leo.so.1'
[17:20:18.131849] [dll] init: initializing backend `leo'
[17:20:18.132029] [dll] init: backend `leo' is version 1.0.11
[17:20:18.132066] [dll] load: searching backend `kvs40xx' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.132088] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kvs40xx.so.1'
[17:20:18.132123] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kvs40xx.so.1'
[17:20:18.132447] [dll] init: initializing backend `kvs40xx'
[17:20:18.132609] [dll] init: backend `kvs40xx' is version 1.0.1
[17:20:18.132683] [dll] load: searching backend `kvs20xx' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.132709] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kvs20xx.so.1'
[17:20:18.132767] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kvs20xx.so.1'
[17:20:18.133098] [dll] init: initializing backend `kvs20xx'
[17:20:18.133261] [dll] init: backend `kvs20xx' is version 1.0.2
[17:20:18.133365] [dll] load: searching backend `kvs1025' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.133390] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kvs1025.so.1'
[17:20:18.133424] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kvs1025.so.1'
[17:20:18.133766] [dll] init: initializing backend `kvs1025'
[17:20:18.134025] [dll] init: backend `kvs1025' is version 1.0.5
[17:20:18.134062] [dll] load: searching backend `kodakaio' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.134087] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kodakaio.so.1'
[17:20:18.134122] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kodakaio.so.1'
[17:20:18.137544] [dll] init: initializing backend `kodakaio'
[17:20:18.137731] [dll] init: backend `kodakaio' is version 1.0.3
[17:20:18.142564] [dll] load: searching backend `kodak' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.142624] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kodak.so.1'
[17:20:18.142671] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-kodak.so.1'
[17:20:18.143166] [dll] init: initializing backend `kodak'
[17:20:18.143242] [dll] init: backend `kodak' is version 1.0.7
[17:20:18.143349] [dll] load: searching backend `ibm' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.143379] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ibm.so.1'
[17:20:18.143414] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-ibm.so.1'
[17:20:18.143682] [dll] init: initializing backend `ibm'
[17:20:18.143799] [dll] init: backend `ibm' is version 1.0.0
[17:20:18.143831] [dll] load: searching backend `hs2p' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.143853] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hs2p.so.1'
[17:20:18.143887] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hs2p.so.1'
[17:20:18.144180] [dll] init: initializing backend `hs2p'
[17:20:18.144323] [dll] init: backend `hs2p' is version 1.0.0
[17:20:18.144358] [dll] load: searching backend `hpsj5s' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.144383] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hpsj5s.so.1'
[17:20:18.144420] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hpsj5s.so.1'
[17:20:18.144693] [dll] init: initializing backend `hpsj5s'
[17:20:18.144770] [dll] init: backend `hpsj5s' is version 1.0.3
[17:20:18.144800] [dll] load: searching backend `hpljm1005' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.144825] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hpljm1005.so.1'
[17:20:18.144879] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hpljm1005.so.1'
[17:20:18.145200] [dll] init: initializing backend `hpljm1005'
[17:20:18.145382] [dll] init: backend `hpljm1005' is version 1.0.1
[17:20:18.145417] [dll] load: searching backend `hp5590' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.145440] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp5590.so.1'
[17:20:18.145476] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp5590.so.1'
[17:20:18.145767] [dll] init: initializing backend `hp5590'
[17:20:18.145925] [dll] init: backend `hp5590' is version 1.0.8
[17:20:18.145958] [dll] load: searching backend `hp5400' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.145981] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp5400.so.1'
[17:20:18.146038] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp5400.so.1'
[17:20:18.146402] [dll] init: initializing backend `hp5400'
[17:20:18.146620] [dll] init: backend `hp5400' is version 1.0.3
[17:20:18.146654] [dll] load: searching backend `hp4200' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.146676] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp4200.so.1'
[17:20:18.146709] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp4200.so.1'
[17:20:18.147039] [dll] init: initializing backend `hp4200'
[17:20:18.147242] [dll] init: backend `hp4200' is version 1.0.0
[17:20:18.147274] [dll] load: searching backend `hp3900' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.147296] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp3900.so.1'
[17:20:18.147329] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp3900.so.1'
[17:20:18.147682] [dll] init: initializing backend `hp3900'
[17:20:18.147893] [dll] init: backend `hp3900' is version 1.0.0
[17:20:18.147926] [dll] load: searching backend `hp3500' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.147949] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp3500.so.1'
[17:20:18.147982] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp3500.so.1'
[17:20:18.148301] [dll] init: initializing backend `hp3500'
[17:20:18.148460] [dll] init: backend `hp3500' is version 1.0.0
[17:20:18.148504] [dll] load: searching backend `hp' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.148528] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp.so.1'
[17:20:18.148564] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-hp.so.1'
[17:20:18.148974] [dll] init: initializing backend `hp'
[17:20:18.149055] [dll] init: backend `hp' is version 1.0.8
[17:20:18.149325] [dll] load: searching backend `gt68xx' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.149358] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-gt68xx.so.1'
[17:20:18.149411] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-gt68xx.so.1'
[17:20:18.149738] [dll] init: initializing backend `gt68xx'
[17:20:18.150078] [dll] init: backend `gt68xx' is version 1.0.84
[17:20:18.150358] [dll] load: searching backend `genesys' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.150389] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-genesys.so.1'
[17:20:18.150432] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-genesys.so.1'
[17:20:18.151914] [dll] init: initializing backend `genesys'
[17:20:18.153052] [dll] init: backend `genesys' is version 1.0.0
[17:20:18.153304] [dll] load: searching backend `fujitsu' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.153337] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-fujitsu.so.1'
[17:20:18.153371] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-fujitsu.so.1'
[17:20:18.153726] [dll] init: initializing backend `fujitsu'
[17:20:18.153785] [dll] init: backend `fujitsu' is version 1.0.134
[17:20:18.154082] [dll] load: searching backend `escl' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.154118] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-escl.so.1'
[17:20:18.154147] [dll] load: couldn't open `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-escl.so.1' (No such file or directory)
[17:20:18.154169] [dll] load: trying to load `/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane/libsane-escl.so.1'
[17:20:18.154196] [dll] load: couldn't open `/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane/libsane-escl.so.1' (No such file or directory)
[17:20:18.154216] [dll] load: couldn't find backend `escl' (No such file or directory)
[17:20:18.154239] [dll] load: searching backend `epsonds' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.154259] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-epsonds.so.1'
[17:20:18.154293] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-epsonds.so.1'
[17:20:18.154670] [dll] init: initializing backend `epsonds'
[17:20:18.154827] [dll] init: backend `epsonds' is version 1.0.0
[17:20:18.494494] [dll] load: searching backend `epson2' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:18.494589] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-epson2.so.1'
[17:20:18.494651] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-epson2.so.1'
[17:20:18.495338] [dll] init: initializing backend `epson2'
[17:20:18.495606] [dll] init: backend `epson2' is version 1.0.124
[17:20:19.496222] [dll] load: searching backend `epjitsu' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.496302] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-epjitsu.so.1'
[17:20:19.496358] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-epjitsu.so.1'
[17:20:19.496822] [dll] init: initializing backend `epjitsu'
[17:20:19.496894] [dll] init: backend `epjitsu' is version 1.0.31
[17:20:19.497218] [dll] load: searching backend `dmc' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.497255] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-dmc.so.1'
[17:20:19.497290] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-dmc.so.1'
[17:20:19.497588] [dll] init: initializing backend `dmc'
[17:20:19.497711] [dll] init: backend `dmc' is version 1.0.0
[17:20:19.497742] [dll] load: searching backend `dell1600n_net' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.497764] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-dell1600n_net.so.1'
[17:20:19.497798] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-dell1600n_net.so.1'
[17:20:19.498144] [dll] init: initializing backend `dell1600n_net'
[17:20:19.498191] [dll] init: backend `dell1600n_net' is version 1.0.0
[17:20:19.798652] [dll] load: searching backend `coolscan3' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.798745] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-coolscan3.so.1'
[17:20:19.798807] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-coolscan3.so.1'
[17:20:19.799341] [dll] init: initializing backend `coolscan3'
[17:20:19.799592] [dll] init: backend `coolscan3' is version 1.0.0
[17:20:19.799709] [dll] load: searching backend `coolscan' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.799738] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-coolscan.so.1'
[17:20:19.799773] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-coolscan.so.1'
[17:20:19.800173] [dll] init: initializing backend `coolscan'
[17:20:19.800327] [dll] init: backend `coolscan' is version 1.0.0
[17:20:19.800359] [dll] load: searching backend `cardscan' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.800381] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-cardscan.so.1'
[17:20:19.800417] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-cardscan.so.1'
[17:20:19.800715] [dll] init: initializing backend `cardscan'
[17:20:19.800878] [dll] init: backend `cardscan' is version 1.0.3
[17:20:19.800951] [dll] load: searching backend `canon_dr' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.800977] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-canon_dr.so.1'
[17:20:19.801035] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-canon_dr.so.1'
[17:20:19.801377] [dll] init: initializing backend `canon_dr'
[17:20:19.801432] [dll] init: backend `canon_dr' is version 1.0.58
[17:20:19.801709] [dll] load: searching backend `canon630u' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.801743] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-canon630u.so.1'
[17:20:19.801777] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-canon630u.so.1'
[17:20:19.802138] [dll] init: initializing backend `canon630u'
[17:20:19.802336] [dll] init: backend `canon630u' is version 1.0.1
[17:20:19.802369] [dll] load: searching backend `canon' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.802391] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-canon.so.1'
[17:20:19.802425] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-canon.so.1'
[17:20:19.802703] [dll] init: initializing backend `canon'
[17:20:19.802825] [dll] init: backend `canon' is version 1.0.0
[17:20:19.802854] [dll] load: searching backend `bh' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.802875] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-bh.so.1'
[17:20:19.802909] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-bh.so.1'
[17:20:19.803205] [dll] init: initializing backend `bh'
[17:20:19.803342] [dll] init: backend `bh' is version 1.0.4
[17:20:19.803373] [dll] load: searching backend `avision' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.803396] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-avision.so.1'
[17:20:19.803428] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-avision.so.1'
[17:20:19.803770] [dll] init: initializing backend `avision'
[17:20:19.804675] [dll] init: backend `avision' is version 1.0.297
[17:20:19.805529] [dll] load: searching backend `as6e' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.805566] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-as6e.so.1'
[17:20:19.805600] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-as6e.so.1'
[17:20:19.805850] [dll] init: initializing backend `as6e'
[17:20:19.805957] [dll] load: searching backend `artec_eplus48u' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.805984] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-artec_eplus48u.so.1'
[17:20:19.806043] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-artec_eplus48u.so.1'
[17:20:19.806368] [dll] init: initializing backend `artec_eplus48u'
[17:20:19.806741] [dll] init: backend `artec_eplus48u' is version 1.0.0
[17:20:19.806779] [dll] load: searching backend `artec' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.806802] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-artec.so.1'
[17:20:19.806835] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-artec.so.1'
[17:20:19.807149] [dll] init: initializing backend `artec'
[17:20:19.807302] [dll] init: backend `artec' is version 1.0.0
[17:20:19.807333] [dll] load: searching backend `apple' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.807354] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-apple.so.1'
[17:20:19.807388] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-apple.so.1'
[17:20:19.807667] [dll] init: initializing backend `apple'
[17:20:19.807798] [dll] init: backend `apple' is version 1.0.0
[17:20:19.807832] [dll] load: searching backend `agfafocus' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.807857] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-agfafocus.so.1'
[17:20:19.807894] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-agfafocus.so.1'
[17:20:19.808220] [dll] init: initializing backend `agfafocus'
[17:20:19.808343] [dll] init: backend `agfafocus' is version 1.0.0
[17:20:19.808372] [dll] load: searching backend `abaton' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.808393] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-abaton.so.1'
[17:20:19.808427] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-abaton.so.1'
[17:20:19.808683] [dll] init: initializing backend `abaton'
[17:20:19.808805] [dll] init: backend `abaton' is version 1.0.0
[17:20:19.808834] [dll] load: searching backend `net' in `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane:/nix/store/z6ah35p9bwcpwr736zvfk9hh02qq220g-sane-backends-1.0.30/lib/sane'
[17:20:19.808856] [dll] load: trying to load `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-net.so.1'
[17:20:19.808889] [dll] load: dlopen()ing `/nix/store/p2qi05ylyklfycnf2cg1i4i6fva2zd3j-sane-config/lib/sane/libsane-net.so.1'
[17:20:19.809374] [dll] init: initializing backend `net'
[17:20:19.814306] [dll] init: backend `net' is version 1.0.30
[17:20:19.814363] [dll] sane_get_devices: found 2 devices
[17:20:19.814388] [dll] sane_open: trying to open `utsushi:esci:usb:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0'
[17:20:20.122357] [dll] sane_open: open successful
[17:20:20.122377] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=0)
[17:20:20.122382] [dll] sane_control_option(handle=0x1c371b0,option=0,action=0,value=0x7ffc74f0508c,info=(nil))
[17:20:20.122392] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=0)
[17:20:20.122396] [dll] sane_control_option(handle=0x1c371b0,option=0,action=0,value=0x7ffc74f04fa0,info=(nil))
[17:20:20.122401] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=1)
[17:20:20.122405] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=2)
[17:20:20.122408] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=3)
[17:20:20.122412] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=4)
[17:20:20.122416] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=5)
[17:20:20.122419] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=6)
[17:20:20.122423] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=7)
[17:20:20.122426] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=8)
[17:20:20.122430] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=9)
[17:20:20.122434] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=10)
[17:20:20.122437] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=11)
[17:20:20.122441] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=12)
[17:20:20.122445] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=13)
[17:20:20.122448] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=14)
[17:20:20.122452] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=15)
[17:20:20.122456] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=16)
[17:20:20.122459] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=17)
[17:20:20.122463] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=18)
[17:20:20.122466] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=19)
[17:20:20.122470] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=20)
[17:20:20.122473] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=21)
[17:20:20.122483] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=22)
[17:20:20.122487] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=23)
[17:20:20.122491] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=24)
[17:20:20.122494] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=25)
[17:20:20.122498] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=26)
[17:20:20.122501] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=27)
[17:20:20.122505] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=28)
[17:20:20.122509] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=29)
[17:20:20.122512] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=30)
[17:20:20.122516] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=31)
[17:20:20.122520] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=32)
[17:20:20.122523] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=33)
[17:20:20.122527] [dll] sane_control_option(handle=0x1c371b0,option=8,action=0,value=0x40d360,info=(nil))
[17:20:20.122532] [dll] sane_control_option(handle=0x1c371b0,option=10,action=0,value=0x7ffc74f04fa4,info=(nil))
[17:20:20.122536] [dll] sane_control_option(handle=0x1c371b0,option=9,action=0,value=0x40d364,info=(nil))
[17:20:20.122541] [dll] sane_control_option(handle=0x1c371b0,option=11,action=0,value=0x7ffc74f04fa4,info=(nil))
[17:20:20.122547] [dll] sane_control_option(handle=0x1c371b0,option=10,action=0,value=0x7ffc74f050c0,info=(nil))
[17:20:20.122551] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=8)
[17:20:20.122555] [dll] sane_control_option(handle=0x1c371b0,option=8,action=1,value=0x7ffc74f050e0,info=0x7ffc74f04fb4)
[17:20:20.122789] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=0)
[17:20:20.122796] [dll] sane_control_option(handle=0x1c371b0,option=0,action=0,value=0x7ffc74f04f60,info=(nil))
[17:20:20.122801] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=1)
[17:20:20.122805] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=2)
[17:20:20.122809] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=3)
[17:20:20.122812] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=4)
[17:20:20.122816] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=5)
[17:20:20.122820] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=6)
[17:20:20.122823] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=7)
[17:20:20.122827] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=8)
[17:20:20.122830] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=9)
[17:20:20.122834] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=10)
[17:20:20.122838] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=11)
[17:20:20.122842] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=12)
[17:20:20.122845] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=13)
[17:20:20.122849] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=14)
[17:20:20.122852] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=15)
[17:20:20.122856] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=16)
[17:20:20.122860] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=17)
[17:20:20.122863] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=18)
[17:20:20.122867] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=19)
[17:20:20.122871] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=20)
[17:20:20.122874] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=21)
[17:20:20.122878] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=22)
[17:20:20.122881] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=23)
[17:20:20.122885] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=24)
[17:20:20.122889] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=25)
[17:20:20.122892] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=26)
[17:20:20.122896] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=27)
[17:20:20.122900] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=28)
[17:20:20.122906] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=29)
[17:20:20.122910] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=30)
[17:20:20.122913] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=31)
[17:20:20.122917] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=32)
[17:20:20.122921] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=33)
[17:20:20.122924] [dll] sane_control_option(handle=0x1c371b0,option=8,action=0,value=0x40d360,info=(nil))
[17:20:20.122929] [dll] sane_control_option(handle=0x1c371b0,option=10,action=0,value=0x7ffc74f04f64,info=(nil))
[17:20:20.122934] [dll] sane_control_option(handle=0x1c371b0,option=9,action=0,value=0x40d364,info=(nil))
[17:20:20.122938] [dll] sane_control_option(handle=0x1c371b0,option=11,action=0,value=0x7ffc74f04f64,info=(nil))
[17:20:20.122943] [dll] sane_control_option(handle=0x1c371b0,option=11,action=0,value=0x7ffc74f050c0,info=(nil))
[17:20:20.122947] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=9)
[17:20:20.122951] [dll] sane_control_option(handle=0x1c371b0,option=9,action=1,value=0x7ffc74f050e0,info=0x7ffc74f04fb4)
[17:20:20.123180] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=0)
[17:20:20.123188] [dll] sane_control_option(handle=0x1c371b0,option=0,action=0,value=0x7ffc74f04f60,info=(nil))
[17:20:20.123193] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=1)
[17:20:20.123197] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=2)
[17:20:20.123200] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=3)
[17:20:20.123204] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=4)
[17:20:20.123208] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=5)
[17:20:20.123211] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=6)
[17:20:20.123215] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=7)
[17:20:20.123219] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=8)
[17:20:20.123222] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=9)
[17:20:20.123226] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=10)
[17:20:20.123230] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=11)
[17:20:20.123233] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=12)
[17:20:20.123237] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=13)
[17:20:20.123241] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=14)
[17:20:20.123244] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=15)
[17:20:20.123248] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=16)
[17:20:20.123251] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=17)
[17:20:20.123255] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=18)
[17:20:20.123259] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=19)
[17:20:20.123262] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=20)
[17:20:20.123266] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=21)
[17:20:20.123270] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=22)
[17:20:20.123273] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=23)
[17:20:20.123277] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=24)
[17:20:20.123280] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=25)
[17:20:20.123284] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=26)
[17:20:20.123288] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=27)
[17:20:20.123291] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=28)
[17:20:20.123295] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=29)
[17:20:20.123298] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=30)
[17:20:20.123302] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=31)
[17:20:20.123306] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=32)
[17:20:20.123309] [dll] sane_get_option_descriptor(handle=0x1c371b0,option=33)
[17:20:20.123313] [dll] sane_control_option(handle=0x1c371b0,option=8,action=0,value=0x40d360,info=(nil))
[17:20:20.123320] [dll] sane_control_option(handle=0x1c371b0,option=10,action=0,value=0x7ffc74f04f64,info=(nil))
[17:20:20.123325] [dll] sane_control_option(handle=0x1c371b0,option=9,action=0,value=0x40d364,info=(nil))
[17:20:20.123330] [dll] sane_control_option(handle=0x1c371b0,option=11,action=0,value=0x7ffc74f04f64,info=(nil))
[17:20:20.123335] [dll] sane_start(handle=0x1c371b0)
[17:20:29.236588] [dll] sane_get_parameters(handle=0x1c371b0,params=0x7ffc74f050e0)
scanimage: scanning image of size 2549x4199 pixels at 24 bits/pixel
scanimage: acquiring RGB frame, 8 bits/sample
scanimage: reading one scanline, 7647 bytes...	[17:20:29.236677] [dll] sane_read(handle=0x1c371b0,data=0x1bb6ad0,maxlen=7647,lenp=0x7ffc74f050c0)
scanimage: received signal 13
scanimage: trying to stop scanner
[17:20:29.240262] [dll] sane_cancel(handle=0x1c371b0)
FAIL Error: Operation was canceled
[17:20:29.303348] [dll] sane_cancel(handle=0x1c371b0)
[17:20:29.303364] [dll] sane_close(handle=0x1c371b0)
[17:20:29.397676] [dll] sane_exit: exiting
[17:20:29.397763] [dll] sane_exit: calling backend `utsushi's exit function
[17:20:29.397835] [dll] sane_exit: calling backend `xerox_mfp's exit function
[17:20:29.398139] [dll] sane_exit: calling backend `v4l's exit function
[17:20:29.398362] [dll] sane_exit: calling backend `umax1220u's exit function
[17:20:29.398478] [dll] sane_exit: calling backend `umax's exit function
[17:20:29.398578] [dll] sane_exit: calling backend `u12's exit function
[17:20:29.398688] [dll] sane_exit: calling backend `teco3's exit function
[17:20:29.398798] [dll] sane_exit: calling backend `teco2's exit function
[17:20:29.398892] [dll] sane_exit: calling backend `teco1's exit function
[17:20:29.398983] [dll] sane_exit: calling backend `tamarack's exit function
[17:20:29.399095] [dll] sane_exit: calling backend `sp15c's exit function
[17:20:29.399184] [dll] sane_exit: calling backend `snapscan's exit function
[17:20:29.399289] [dll] sane_exit: calling backend `sm3840's exit function
[17:20:29.399382] [dll] sane_exit: calling backend `sm3600's exit function
[17:20:29.399484] [dll] sane_exit: calling backend `sharp's exit function
[17:20:29.399573] [dll] sane_exit: calling backend `sceptre's exit function
[17:20:29.399656] [dll] sane_exit: calling backend `s9036's exit function
[17:20:29.399736] [dll] sane_exit: calling backend `rts8891's exit function
[17:20:29.399826] [dll] sane_exit: calling backend `ricoh2's exit function
[17:20:29.399920] [dll] sane_exit: calling backend `ricoh's exit function
[17:20:29.400016] [dll] sane_exit: calling backend `qcam's exit function
[17:20:29.400101] [dll] sane_exit: calling backend `plustek's exit function
[17:20:29.400204] [dll] sane_exit: calling backend `pixma's exit function
[17:20:29.400306] [dll] sane_exit: calling backend `pieusb's exit function
[17:20:29.400401] [dll] sane_exit: calling backend `pie's exit function
[17:20:29.400496] [dll] sane_exit: calling backend `niash's exit function
[17:20:29.400580] [dll] sane_exit: calling backend `nec's exit function
[17:20:29.400665] [dll] sane_exit: calling backend `mustek_usb2's exit function
[17:20:29.400754] [dll] sane_exit: calling backend `mustek_usb's exit function
[17:20:29.400846] [dll] sane_exit: calling backend `mustek's exit function
[17:20:29.400936] [dll] sane_exit: calling backend `microtek2's exit function
[17:20:29.401054] [dll] sane_exit: calling backend `microtek's exit function
[17:20:29.401166] [dll] sane_exit: calling backend `matsushita's exit function
[17:20:29.401251] [dll] sane_exit: calling backend `magicolor's exit function
[17:20:29.401528] [dll] sane_exit: calling backend `ma1509's exit function
[17:20:29.401637] [dll] sane_exit: calling backend `lexmark's exit function
[17:20:29.401733] [dll] sane_exit: calling backend `leo's exit function
[17:20:29.401823] [dll] sane_exit: calling backend `kvs40xx's exit function
[17:20:29.401915] [dll] sane_exit: calling backend `kvs20xx's exit function
[17:20:29.402020] [dll] sane_exit: calling backend `kvs1025's exit function
[17:20:29.402148] [dll] sane_exit: calling backend `kodakaio's exit function
[17:20:29.402322] [dll] sane_exit: calling backend `kodak's exit function
[17:20:29.402394] [dll] sane_exit: calling backend `ibm's exit function
[17:20:29.402415] [dll] sane_exit: calling backend `hs2p's exit function
[17:20:29.402438] [dll] sane_exit: calling backend `hpsj5s's exit function
[17:20:29.402469] [dll] sane_exit: calling backend `hpljm1005's exit function
[17:20:29.402497] [dll] sane_exit: calling backend `hp5590's exit function
[17:20:29.402526] [dll] sane_exit: calling backend `hp5400's exit function
[17:20:29.402551] [dll] sane_exit: calling backend `hp4200's exit function
[17:20:29.402575] [dll] sane_exit: calling backend `hp3900's exit function
[17:20:29.402600] [dll] sane_exit: calling backend `hp3500's exit function
[17:20:29.402622] [dll] sane_exit: calling backend `hp's exit function
[17:20:29.402648] [dll] sane_exit: calling backend `gt68xx's exit function
[17:20:29.402674] [dll] sane_exit: calling backend `genesys's exit function
[17:20:29.402821] [dll] sane_exit: calling backend `fujitsu's exit function
[17:20:29.402846] [dll] sane_exit: calling backend `epsonds's exit function
[17:20:29.402871] [dll] sane_exit: calling backend `epson2's exit function
[17:20:29.402898] [dll] sane_exit: calling backend `epjitsu's exit function
[17:20:29.402923] [dll] sane_exit: calling backend `dmc's exit function
[17:20:29.402943] [dll] sane_exit: calling backend `dell1600n_net's exit function
[17:20:29.402964] [dll] sane_exit: calling backend `coolscan3's exit function
[17:20:29.402988] [dll] sane_exit: calling backend `coolscan's exit function
[17:20:29.403016] [dll] sane_exit: calling backend `cardscan's exit function
[17:20:29.403043] [dll] sane_exit: calling backend `canon_dr's exit function
[17:20:29.403069] [dll] sane_exit: calling backend `canon630u's exit function
[17:20:29.403092] [dll] sane_exit: calling backend `canon's exit function
[17:20:29.403113] [dll] sane_exit: calling backend `bh's exit function
[17:20:29.403133] [dll] sane_exit: calling backend `avision's exit function
[17:20:29.403165] [dll] sane_exit: calling backend `artec_eplus48u's exit function
[17:20:29.403185] [dll] sane_exit: calling backend `artec's exit function
[17:20:29.403207] [dll] sane_exit: calling backend `apple's exit function
[17:20:29.403226] [dll] sane_exit: calling backend `agfafocus's exit function
[17:20:29.403244] [dll] sane_exit: calling backend `abaton's exit function
[17:20:29.403265] [dll] sane_exit: calling backend `net's exit function
[17:20:29.403548] [dll] sane_exit: finished

Additional context

For additional discussion, see: https://github.com/NixOS/nixpkgs/issues/71070