Dec 19 19:38:30.564 INFO checking bouzuya/rust-example against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:38:30.564 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/bouzuya/rust-example:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:38:31.128 INFO [stdout] 7528dd79ac1573dfef0f7f0d440c6449a3eb0b5a2259045564a09852981cead3
Dec 19 19:38:31.130 INFO running `"docker" "start" "-a" "7528dd79ac1573dfef0f7f0d440c6449a3eb0b5a2259045564a09852981cead3"`
Dec 19 19:38:32.696 INFO [stderr]    Compiling hyper v0.10.8
Dec 19 19:38:36.808 INFO [stderr]     Checking hyper-native-tls v0.2.2
Dec 19 19:38:37.452 INFO [stderr]     Checking rust-example v0.1.0 (/opt/crater/workdir)
Dec 19 19:38:38.328 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.77s
Dec 19 19:38:39.550 INFO running `"docker" "inspect" "7528dd79ac1573dfef0f7f0d440c6449a3eb0b5a2259045564a09852981cead3"`
Dec 19 19:38:39.870 INFO running `"docker" "rm" "-f" "7528dd79ac1573dfef0f7f0d440c6449a3eb0b5a2259045564a09852981cead3"`
Dec 19 19:38:40.088 INFO [stdout] 7528dd79ac1573dfef0f7f0d440c6449a3eb0b5a2259045564a09852981cead3