Update nixpkgs-unstable
Because of
https://github.com/NixOS/nixpkgs/commit/b7749c76715ba96727f7a12bc2514ddfa6847813
we need to set +o pipefail
several asserts.
Because of
https://github.com/NixOS/nixpkgs/commit/b7749c76715ba96727f7a12bc2514ddfa6847813
we need to set +o pipefail
several asserts.