Dec 19 15:19:18.957 INFO checking jdhorwitz/rust_guessing_game against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:19:18.957 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/jdhorwitz/rust_guessing_game:/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 15:19:19.514 INFO [stdout] 298b533488273e3a836e1d2efdbcbdb484db138ea04d024535c878f18c78eecf
Dec 19 15:19:19.516 INFO running `"docker" "start" "-a" "298b533488273e3a836e1d2efdbcbdb484db138ea04d024535c878f18c78eecf"`
Dec 19 15:19:21.080 INFO [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
Dec 19 15:19:21.456 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Dec 19 15:19:22.419 INFO running `"docker" "inspect" "298b533488273e3a836e1d2efdbcbdb484db138ea04d024535c878f18c78eecf"`
Dec 19 15:19:22.728 INFO running `"docker" "rm" "-f" "298b533488273e3a836e1d2efdbcbdb484db138ea04d024535c878f18c78eecf"`
Dec 19 15:19:23.046 INFO [stdout] 298b533488273e3a836e1d2efdbcbdb484db138ea04d024535c878f18c78eecf