Dec 19 11:53:33.428 INFO checking nical/backup against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 11:53:33.428 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/nical/backup:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:53:33.854 INFO [stdout] 89875b1b1df6b9979ee40ca885ea50ce7afcaadb98991ca1a06000e2c8027b9e
Dec 19 11:53:33.857 INFO running `"docker" "start" "-a" "89875b1b1df6b9979ee40ca885ea50ce7afcaadb98991ca1a06000e2c8027b9e"`
Dec 19 11:53:36.591 INFO [stderr]     Checking toml v0.4.5
Dec 19 11:53:36.591 INFO [stderr]    Compiling serde_derive_internals v0.21.0
Dec 19 11:53:41.152 INFO [stderr]    Compiling serde_derive v1.0.33
Dec 19 11:53:48.525 INFO [stderr]     Checking backup v0.1.0 (/opt/crater/workdir)
Dec 19 11:53:49.613 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.13s
Dec 19 11:53:51.057 INFO running `"docker" "inspect" "89875b1b1df6b9979ee40ca885ea50ce7afcaadb98991ca1a06000e2c8027b9e"`
Dec 19 11:53:51.404 INFO running `"docker" "rm" "-f" "89875b1b1df6b9979ee40ca885ea50ce7afcaadb98991ca1a06000e2c8027b9e"`
Dec 19 11:53:51.752 INFO [stdout] 89875b1b1df6b9979ee40ca885ea50ce7afcaadb98991ca1a06000e2c8027b9e