Dec 18 09:38:57.761 INFO checking uwc-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:38:57.761 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/reg/uwc/0.1.0:/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 18 09:38:58.259 INFO [stdout] f2c0fdd5befa6c0688107a3fa32a6c60a942aeec29eb5d9e3971de243dce0217
Dec 18 09:38:58.265 INFO running `"docker" "start" "-a" "f2c0fdd5befa6c0688107a3fa32a6c60a942aeec29eb5d9e3971de243dce0217"`
Dec 18 09:39:00.116 INFO [stderr]     Checking structopt v0.1.7
Dec 18 09:39:00.116 INFO [stderr]     Checking env_logger v0.4.3
Dec 18 09:39:01.108 INFO [stderr]     Checking uwc v0.1.0 (/opt/crater/workdir)
Dec 18 09:39:03.424 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
Dec 18 09:39:04.624 INFO running `"docker" "inspect" "f2c0fdd5befa6c0688107a3fa32a6c60a942aeec29eb5d9e3971de243dce0217"`
Dec 18 09:39:04.958 INFO running `"docker" "rm" "-f" "f2c0fdd5befa6c0688107a3fa32a6c60a942aeec29eb5d9e3971de243dce0217"`
Dec 18 09:39:05.312 INFO [stdout] f2c0fdd5befa6c0688107a3fa32a6c60a942aeec29eb5d9e3971de243dce0217