Dec 19 21:10:55.828 INFO checking ZeroXLR/chip8_emulator against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:10:55.828 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/ZeroXLR/chip8_emulator:/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 21:10:56.052 INFO [stdout] a4f9acd219455187dfb108e3c51f3bcef74a015739d90a6a9eee1d27bdd5df85
Dec 19 21:10:56.054 INFO running `"docker" "start" "-a" "a4f9acd219455187dfb108e3c51f3bcef74a015739d90a6a9eee1d27bdd5df85"`
Dec 19 21:10:56.775 INFO [stderr]    Compiling minifb v0.10.6
Dec 19 21:10:56.780 INFO [stderr]     Checking rand v0.5.2
Dec 19 21:10:56.784 INFO [stderr]     Checking x11-dl v2.14.0
Dec 19 21:11:00.932 INFO [stderr]     Checking chip8_emulator v0.1.0 (/opt/crater/workdir)
Dec 19 21:11:01.635 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.92s
Dec 19 21:11:02.340 INFO running `"docker" "inspect" "a4f9acd219455187dfb108e3c51f3bcef74a015739d90a6a9eee1d27bdd5df85"`
Dec 19 21:11:02.646 INFO running `"docker" "rm" "-f" "a4f9acd219455187dfb108e3c51f3bcef74a015739d90a6a9eee1d27bdd5df85"`
Dec 19 21:11:02.972 INFO [stdout] a4f9acd219455187dfb108e3c51f3bcef74a015739d90a6a9eee1d27bdd5df85