Dec 17 21:06:13.337 INFO checking krixon/knights-tour-rs against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:06:13.337 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/krixon/knights-tour-rs:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:06:13.805 INFO [stdout] 836001ea6607233c77a796862c1f3f3129df3cc4b7fd889de6ebf88acf2bd957
Dec 17 21:06:13.812 INFO running `"docker" "start" "-a" "836001ea6607233c77a796862c1f3f3129df3cc4b7fd889de6ebf88acf2bd957"`
Dec 17 21:06:15.679 INFO [stderr]     Checking rand v0.3.14
Dec 17 21:06:17.028 INFO [stderr]     Checking knights_tour v0.1.0 (/opt/crater/workdir)
Dec 17 21:06:17.544 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
Dec 17 21:06:18.090 INFO running `"docker" "inspect" "836001ea6607233c77a796862c1f3f3129df3cc4b7fd889de6ebf88acf2bd957"`
Dec 17 21:06:18.194 INFO running `"docker" "rm" "-f" "836001ea6607233c77a796862c1f3f3129df3cc4b7fd889de6ebf88acf2bd957"`
Dec 17 21:06:18.343 INFO [stdout] 836001ea6607233c77a796862c1f3f3129df3cc4b7fd889de6ebf88acf2bd957