Dec 18 04:53:19.401 INFO checking WeAreRust/protogen against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 04:53:19.401 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/WeAreRust/protogen:/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 04:53:19.931 INFO [stdout] df8714dba41341131ca5c31a169ff88be95fe4eaf9b0d6b23f94f941a764f6c7
Dec 18 04:53:19.933 INFO running `"docker" "start" "-a" "df8714dba41341131ca5c31a169ff88be95fe4eaf9b0d6b23f94f941a764f6c7"`
Dec 18 04:53:22.016 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 18 04:53:22.036 INFO [stderr]     Checking protogen v0.1.0 (/opt/crater/workdir)
Dec 18 04:53:22.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 18 04:53:23.390 INFO running `"docker" "inspect" "df8714dba41341131ca5c31a169ff88be95fe4eaf9b0d6b23f94f941a764f6c7"`
Dec 18 04:53:23.772 INFO running `"docker" "rm" "-f" "df8714dba41341131ca5c31a169ff88be95fe4eaf9b0d6b23f94f941a764f6c7"`
Dec 18 04:53:24.120 INFO [stdout] df8714dba41341131ca5c31a169ff88be95fe4eaf9b0d6b23f94f941a764f6c7