Dec 17 19:41:20.537 INFO checking michael-robbins/filemapper against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:41:20.537 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/michael-robbins/filemapper:/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 19:41:20.911 INFO [stdout] c47e0121fe14b544d92ceacf4eb85dfda0b4e17354cbaf7a5f5114edbc192dd1
Dec 17 19:41:20.919 INFO running `"docker" "start" "-a" "c47e0121fe14b544d92ceacf4eb85dfda0b4e17354cbaf7a5f5114edbc192dd1"`
Dec 17 19:41:22.496 INFO [stderr]    Compiling bzip2-sys v0.1.6
Dec 17 19:41:22.496 INFO [stderr]     Checking csv v1.0.0
Dec 17 19:41:25.474 INFO [stderr]     Checking bzip2 v0.3.3
Dec 17 19:41:26.060 INFO [stderr]     Checking file_mapper v0.1.0 (/opt/crater/workdir)
Dec 17 19:41:26.944 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
Dec 17 19:41:27.487 INFO running `"docker" "inspect" "c47e0121fe14b544d92ceacf4eb85dfda0b4e17354cbaf7a5f5114edbc192dd1"`
Dec 17 19:41:27.632 INFO running `"docker" "rm" "-f" "c47e0121fe14b544d92ceacf4eb85dfda0b4e17354cbaf7a5f5114edbc192dd1"`
Dec 17 19:41:27.884 INFO [stdout] c47e0121fe14b544d92ceacf4eb85dfda0b4e17354cbaf7a5f5114edbc192dd1