Dec 18 18:23:44.283 INFO checking async-codec-0.3.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:23:44.283 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/async-codec/0.3.0:/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 18:23:44.796 INFO [stdout] a99b9ffb3a3fc20486e74b8f0b74625f233928311e3f9553c1df89927aa7481a
Dec 18 18:23:44.804 INFO running `"docker" "start" "-a" "a99b9ffb3a3fc20486e74b8f0b74625f233928311e3f9553c1df89927aa7481a"`
Dec 18 18:23:46.499 INFO [stderr]     Checking futures-core v0.2.1
Dec 18 18:23:47.244 INFO [stderr]     Checking futures-io v0.2.1
Dec 18 18:23:47.804 INFO [stderr]     Checking async-codec v0.3.0 (/opt/crater/workdir)
Dec 18 18:23:48.609 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
Dec 18 18:23:49.645 INFO running `"docker" "inspect" "a99b9ffb3a3fc20486e74b8f0b74625f233928311e3f9553c1df89927aa7481a"`
Dec 18 18:23:50.002 INFO running `"docker" "rm" "-f" "a99b9ffb3a3fc20486e74b8f0b74625f233928311e3f9553c1df89927aa7481a"`
Dec 18 18:23:50.401 INFO [stdout] a99b9ffb3a3fc20486e74b8f0b74625f233928311e3f9553c1df89927aa7481a