Dec 17 22:52:32.784 INFO checking intrepion/heroku-hello-rust-iron against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:52:32.784 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/intrepion/heroku-hello-rust-iron:/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 22:52:33.055 INFO [stdout] 270e9621880c66d8803172ef690812640e9b97e25f1ef07447acd4ba5b6f2a49
Dec 17 22:52:33.057 INFO running `"docker" "start" "-a" "270e9621880c66d8803172ef690812640e9b97e25f1ef07447acd4ba5b6f2a49"`
Dec 17 22:52:33.824 INFO [stderr]     Checking plugin v0.2.6
Dec 17 22:52:34.023 INFO [stderr]     Checking iron v0.5.1
Dec 17 22:52:34.612 INFO [stderr]     Checking heroku-hello-rust-iron v0.1.0 (/opt/crater/workdir)
Dec 17 22:52:34.969 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Dec 17 22:52:35.317 INFO running `"docker" "inspect" "270e9621880c66d8803172ef690812640e9b97e25f1ef07447acd4ba5b6f2a49"`
Dec 17 22:52:35.422 INFO running `"docker" "rm" "-f" "270e9621880c66d8803172ef690812640e9b97e25f1ef07447acd4ba5b6f2a49"`
Dec 17 22:52:35.500 INFO [stdout] 270e9621880c66d8803172ef690812640e9b97e25f1ef07447acd4ba5b6f2a49