Comparing signatures with seconds can trigger heisenbug
Job #860609570 failed for eea14bfa:
left: `SystemTime { tv_sec: 1605791993, tv_nsec: 0 }`,
right: `SystemTime { tv_sec: 1605791992, tv_nsec: 0 }`', openpgp/src/packet/signature.rs:3342:13
Job #860609570 failed for eea14bfa:
left: `SystemTime { tv_sec: 1605791993, tv_nsec: 0 }`,
right: `SystemTime { tv_sec: 1605791992, tv_nsec: 0 }`', openpgp/src/packet/signature.rs:3342:13