Dec 18 15:22:37.001 INFO checking grpcio-compiler-0.4.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 15:22:37.002 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/grpcio-compiler/0.4.1:/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 15:22:37.366 INFO [stdout] 7f5dffeaf85f26418da72d799de24e354af2de5d7fa975e4010d93e5a6c02f4a
Dec 18 15:22:37.374 INFO running `"docker" "start" "-a" "7f5dffeaf85f26418da72d799de24e354af2de5d7fa975e4010d93e5a6c02f4a"`
Dec 18 15:22:38.827 INFO [stderr]     Checking protobuf-codegen v2.0.5
Dec 18 15:22:40.596 INFO [stderr]     Checking grpcio-compiler v0.4.1 (/opt/crater/workdir)
Dec 18 15:22:41.884 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.08s
Dec 18 15:22:42.330 INFO running `"docker" "inspect" "7f5dffeaf85f26418da72d799de24e354af2de5d7fa975e4010d93e5a6c02f4a"`
Dec 18 15:22:42.686 INFO running `"docker" "rm" "-f" "7f5dffeaf85f26418da72d799de24e354af2de5d7fa975e4010d93e5a6c02f4a"`
Dec 18 15:22:42.969 INFO [stdout] 7f5dffeaf85f26418da72d799de24e354af2de5d7fa975e4010d93e5a6c02f4a