Oct 12 21:05:27.485 INFO checking gmanlynam/rust against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 21:05:27.485 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/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 21:05:27.909 INFO blam! cd30c7c81cf30a5c148da4a64da77264e6db53cdb4a58745ebf2115254a70ba8
Oct 12 21:05:27.917 INFO running `"docker" "start" "-a" "cd30c7c81cf30a5c148da4a64da77264e6db53cdb4a58745ebf2115254a70ba8"`
Oct 12 21:05:28.904 INFO kablam! usermod: no changes
Oct 12 21:05:29.072 INFO kablam!     Checking serde_json v0.8.6
Oct 12 21:05:29.072 INFO kablam!     Checking hyper v0.10.13
Oct 12 21:05:33.880 INFO kablam!     Checking iron v0.5.1
Oct 12 21:05:35.428 INFO kablam!     Checking persistent v0.3.0
Oct 12 21:05:35.429 INFO kablam!     Checking router v0.5.1
Oct 12 21:05:37.789 INFO kablam!     Checking bodyparser v0.5.0
Oct 12 21:05:39.375 INFO kablam!     Checking urlencoded v0.5.0
Oct 12 21:05:41.083 INFO kablam!     Checking mars_rover v0.1.0 (/source)
Oct 12 21:05:43.716 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 14.78s
Oct 12 21:05:43.723 INFO kablam! su: No module specific data is present
Oct 12 21:05:44.434 INFO running `"docker" "rm" "-f" "cd30c7c81cf30a5c148da4a64da77264e6db53cdb4a58745ebf2115254a70ba8"`
Oct 12 21:05:44.734 INFO blam! cd30c7c81cf30a5c148da4a64da77264e6db53cdb4a58745ebf2115254a70ba8