Dec 19 12:54:33.977 INFO checking maxjacobson/monty_hall_problem against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:54:33.977 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/maxjacobson/monty_hall_problem:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:54:34.723 INFO [stdout] b723e68c1751a6e4225e3d8562843916b99506d47b5fe2912ff9ce95aa4bd4b0
Dec 19 12:54:34.725 INFO running `"docker" "start" "-a" "b723e68c1751a6e4225e3d8562843916b99506d47b5fe2912ff9ce95aa4bd4b0"`
Dec 19 12:54:36.647 INFO [stderr]     Checking rand v0.3.14
Dec 19 12:54:38.030 INFO [stderr]     Checking monty_hall_problem v0.1.0 (/opt/crater/workdir)
Dec 19 12:54:38.337 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
Dec 19 12:54:38.650 INFO running `"docker" "inspect" "b723e68c1751a6e4225e3d8562843916b99506d47b5fe2912ff9ce95aa4bd4b0"`
Dec 19 12:54:38.836 INFO running `"docker" "rm" "-f" "b723e68c1751a6e4225e3d8562843916b99506d47b5fe2912ff9ce95aa4bd4b0"`
Dec 19 12:54:39.010 INFO [stdout] b723e68c1751a6e4225e3d8562843916b99506d47b5fe2912ff9ce95aa4bd4b0