Dec 17 21:16:38.228 INFO checking kolybasov/fm_tree against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:16:38.228 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/kolybasov/fm_tree:/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 21:16:38.692 INFO [stdout] 1f4f0249acbba764508506651951e910cf5c260a063e9690faec04e7d4ebc783
Dec 17 21:16:38.698 INFO running `"docker" "start" "-a" "1f4f0249acbba764508506651951e910cf5c260a063e9690faec04e7d4ebc783"`
Dec 17 21:16:40.440 INFO [stderr]     Checking serde_json v1.0.9
Dec 17 21:16:40.440 INFO [stderr]     Checking serde_yaml v0.7.3
Dec 17 21:16:42.970 INFO [stderr]     Checking fm_tree v0.1.0 (/opt/crater/workdir)
Dec 17 21:16:43.548 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.21s
Dec 17 21:16:44.084 INFO running `"docker" "inspect" "1f4f0249acbba764508506651951e910cf5c260a063e9690faec04e7d4ebc783"`
Dec 17 21:16:44.516 INFO running `"docker" "rm" "-f" "1f4f0249acbba764508506651951e910cf5c260a063e9690faec04e7d4ebc783"`
Dec 17 21:16:44.892 INFO [stdout] 1f4f0249acbba764508506651951e910cf5c260a063e9690faec04e7d4ebc783