Dec 19 19:51:13.572 INFO checking binocvlar/Rustlang-Towers-of-Hanoi against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:51:13.572 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/binocvlar/Rustlang-Towers-of-Hanoi:/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 19:51:14.054 INFO [stdout] ffcef85ccc5c4b909a7597fcb0d09b1960a605f030d4caa4ccac4e77aae9784a
Dec 19 19:51:14.062 INFO running `"docker" "start" "-a" "ffcef85ccc5c4b909a7597fcb0d09b1960a605f030d4caa4ccac4e77aae9784a"`
Dec 19 19:51:15.745 INFO [stderr]     Checking towers_of_hanoi v0.1.0 (/opt/crater/workdir)
Dec 19 19:51:17.059 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
Dec 19 19:51:18.162 INFO running `"docker" "inspect" "ffcef85ccc5c4b909a7597fcb0d09b1960a605f030d4caa4ccac4e77aae9784a"`
Dec 19 19:51:18.426 INFO running `"docker" "rm" "-f" "ffcef85ccc5c4b909a7597fcb0d09b1960a605f030d4caa4ccac4e77aae9784a"`
Dec 19 19:51:18.736 INFO [stdout] ffcef85ccc5c4b909a7597fcb0d09b1960a605f030d4caa4ccac4e77aae9784a