Dec 17 19:12:29.749 INFO checking mtn/tangerine against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:12:29.749 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/gh/mtn/tangerine:/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 17 19:12:30.158 INFO [stdout] 8c7a1c72a1aedfe5b9dc875049e7cef3635e51d865633a1dc18c2617bb572bb4
Dec 17 19:12:30.162 INFO running `"docker" "start" "-a" "8c7a1c72a1aedfe5b9dc875049e7cef3635e51d865633a1dc18c2617bb572bb4"`
Dec 17 19:12:31.652 INFO [stderr]     Checking nix v0.5.1
Dec 17 19:12:34.547 INFO [stderr]     Checking rustyline v1.0.0
Dec 17 19:12:35.320 INFO [stderr]     Checking tangerine v0.1.0 (/opt/crater/workdir)
Dec 17 19:12:35.969 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
Dec 17 19:12:36.484 INFO running `"docker" "inspect" "8c7a1c72a1aedfe5b9dc875049e7cef3635e51d865633a1dc18c2617bb572bb4"`
Dec 17 19:12:36.690 INFO running `"docker" "rm" "-f" "8c7a1c72a1aedfe5b9dc875049e7cef3635e51d865633a1dc18c2617bb572bb4"`
Dec 17 19:12:36.832 INFO [stdout] 8c7a1c72a1aedfe5b9dc875049e7cef3635e51d865633a1dc18c2617bb572bb4