Dec 17 15:28:36.605 INFO checking shunp/rust_iron_api against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 15:28:36.605 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/shunp/rust_iron_api:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:28:37.064 INFO [stdout] 9ed74e05138dafd5b11080725e359c179c535ff3a3bfe13d9214230540e26b8d
Dec 17 15:28:37.070 INFO running `"docker" "start" "-a" "9ed74e05138dafd5b11080725e359c179c535ff3a3bfe13d9214230540e26b8d"`
Dec 17 15:28:39.182 INFO [stderr]    Compiling mime_guess v1.8.6
Dec 17 15:28:43.377 INFO [stderr]     Checking iron v0.6.0
Dec 17 15:28:44.154 INFO [stderr]     Checking sample3 v0.1.0 (/opt/crater/workdir)
Dec 17 15:28:44.844 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.80s
Dec 17 15:28:45.746 INFO running `"docker" "inspect" "9ed74e05138dafd5b11080725e359c179c535ff3a3bfe13d9214230540e26b8d"`
Dec 17 15:28:46.024 INFO running `"docker" "rm" "-f" "9ed74e05138dafd5b11080725e359c179c535ff3a3bfe13d9214230540e26b8d"`
Dec 17 15:28:46.360 INFO [stdout] 9ed74e05138dafd5b11080725e359c179c535ff3a3bfe13d9214230540e26b8d