Oct 12 19:02:38.798 INFO checking khaivubui/rust_iron_gcd against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 19:02:38.798 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 19:02:38.983 INFO blam! b44d9f47f852bf47835dac97fa575b720d32ff77f735d91ab2ed840cc160b2c2
Oct 12 19:02:38.986 INFO running `"docker" "start" "-a" "b44d9f47f852bf47835dac97fa575b720d32ff77f735d91ab2ed840cc160b2c2"`
Oct 12 19:02:39.442 INFO kablam! usermod: no changes
Oct 12 19:02:39.554 INFO kablam!     Checking serde_json v0.8.6
Oct 12 19:02:39.564 INFO kablam!     Checking hyper v0.10.13
Oct 12 19:02:44.626 INFO kablam!     Checking iron v0.5.1
Oct 12 19:02:45.864 INFO kablam!     Checking persistent v0.3.0
Oct 12 19:02:45.864 INFO kablam!     Checking router v0.5.1
Oct 12 19:02:47.469 INFO kablam!     Checking bodyparser v0.5.0
Oct 12 19:02:48.616 INFO kablam!     Checking urlencoded v0.5.0
Oct 12 19:02:49.827 INFO kablam!     Checking iron-gcd v0.1.0 (/source)
Oct 12 19:02:51.320 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.86s
Oct 12 19:02:51.329 INFO kablam! su: No module specific data is present
Oct 12 19:02:51.748 INFO running `"docker" "rm" "-f" "b44d9f47f852bf47835dac97fa575b720d32ff77f735d91ab2ed840cc160b2c2"`
Oct 12 19:02:52.054 INFO blam! b44d9f47f852bf47835dac97fa575b720d32ff77f735d91ab2ed840cc160b2c2