Dec 17 20:57:39.056 INFO checking ladysamantha/flatarchive against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 20:57:39.057 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/ladysamantha/flatarchive:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 20:57:39.575 INFO [stdout] f619d254428b4780f01fe45feb5b1e62f9e1778356edeca90c14b24b700dc4a3
Dec 17 20:57:39.577 INFO running `"docker" "start" "-a" "f619d254428b4780f01fe45feb5b1e62f9e1778356edeca90c14b24b700dc4a3"`
Dec 17 20:57:41.504 INFO [stderr]     Checking env_logger v0.5.10
Dec 17 20:57:42.266 INFO [stderr]     Checking quickcheck v0.6.2
Dec 17 20:57:43.827 INFO [stderr]     Checking flatarchive v0.0.1 (/opt/crater/workdir)
Dec 17 20:57:44.936 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
Dec 17 20:57:45.878 INFO running `"docker" "inspect" "f619d254428b4780f01fe45feb5b1e62f9e1778356edeca90c14b24b700dc4a3"`
Dec 17 20:57:46.135 INFO running `"docker" "rm" "-f" "f619d254428b4780f01fe45feb5b1e62f9e1778356edeca90c14b24b700dc4a3"`
Dec 17 20:57:46.403 INFO [stdout] f619d254428b4780f01fe45feb5b1e62f9e1778356edeca90c14b24b700dc4a3