Dec 18 18:27:50.761 INFO checking arc-reactor-0.2.4 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:27:50.761 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/arc-reactor/0.2.4:/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 18:27:50.970 INFO [stdout] 3c8df106e196116ee0f2f239b250ffd79866bd27f5ce31c473c1d87ff0fbb733
Dec 18 18:27:50.974 INFO running `"docker" "start" "-a" "3c8df106e196116ee0f2f239b250ffd79866bd27f5ce31c473c1d87ff0fbb733"`
Dec 18 18:27:51.910 INFO [stderr]     Checking serde_qs v0.4.1
Dec 18 18:27:52.953 INFO [stderr]     Checking arc-reactor v0.2.4 (/opt/crater/workdir)
Dec 18 18:27:55.844 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
Dec 18 18:27:56.159 INFO running `"docker" "inspect" "3c8df106e196116ee0f2f239b250ffd79866bd27f5ce31c473c1d87ff0fbb733"`
Dec 18 18:27:56.310 INFO running `"docker" "rm" "-f" "3c8df106e196116ee0f2f239b250ffd79866bd27f5ce31c473c1d87ff0fbb733"`
Dec 18 18:27:56.552 INFO [stdout] 3c8df106e196116ee0f2f239b250ffd79866bd27f5ce31c473c1d87ff0fbb733