Dec 17 17:09:50.417 INFO checking reiver-dev/cenv against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 17:09:50.417 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/reiver-dev/cenv:/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 17:09:50.844 INFO [stdout] ef1d81082606caead1df11cf125edd4f4e13370118c78f056fb55f829b6b193f
Dec 17 17:09:50.846 INFO running `"docker" "start" "-a" "ef1d81082606caead1df11cf125edd4f4e13370118c78f056fb55f829b6b193f"`
Dec 17 17:09:52.212 INFO [stderr]     Checking atty v0.2.6
Dec 17 17:09:52.212 INFO [stderr]     Checking nix v0.9.0
Dec 17 17:09:52.676 INFO [stderr]     Checking clap v2.30.0
Dec 17 17:10:00.656 INFO [stderr]     Checking os_pipe v0.6.0
Dec 17 17:10:00.930 INFO [stderr]     Checking cenv v0.1.0 (/opt/crater/workdir)
Dec 17 17:10:01.552 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.41s
Dec 17 17:10:02.358 INFO running `"docker" "inspect" "ef1d81082606caead1df11cf125edd4f4e13370118c78f056fb55f829b6b193f"`
Dec 17 17:10:02.623 INFO running `"docker" "rm" "-f" "ef1d81082606caead1df11cf125edd4f4e13370118c78f056fb55f829b6b193f"`
Dec 17 17:10:02.883 INFO [stdout] ef1d81082606caead1df11cf125edd4f4e13370118c78f056fb55f829b6b193f