Dec 17 12:57:04.224 INFO checking u238/traits_exercise against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 12:57:04.224 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/u238/traits_exercise:/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 12:57:04.704 INFO [stdout] fa2ecefbd78ff79ccee563e99cd4acc4e2ebb246124a1af487db03f0dffe8eb5
Dec 17 12:57:04.706 INFO running `"docker" "start" "-a" "fa2ecefbd78ff79ccee563e99cd4acc4e2ebb246124a1af487db03f0dffe8eb5"`
Dec 17 12:57:06.408 INFO [stderr]     Checking traits_exercise v0.1.0 (/opt/crater/workdir)
Dec 17 12:57:06.965 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Dec 17 12:57:07.948 INFO running `"docker" "inspect" "fa2ecefbd78ff79ccee563e99cd4acc4e2ebb246124a1af487db03f0dffe8eb5"`
Dec 17 12:57:08.322 INFO running `"docker" "rm" "-f" "fa2ecefbd78ff79ccee563e99cd4acc4e2ebb246124a1af487db03f0dffe8eb5"`
Dec 17 12:57:08.713 INFO [stdout] fa2ecefbd78ff79ccee563e99cd4acc4e2ebb246124a1af487db03f0dffe8eb5