Oct 12 22:16:55.698 INFO checking dylanhart/roll against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 22:16:55.700 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/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 22:16:56.225 INFO blam! a0abd4bb4b4a01be66d44e38f1aa1bc11664c03596a578d245766855ba102eb2
Oct 12 22:16:56.226 INFO running `"docker" "start" "-a" "a0abd4bb4b4a01be66d44e38f1aa1bc11664c03596a578d245766855ba102eb2"`
Oct 12 22:16:58.456 INFO kablam! usermod: no changes
Oct 12 22:16:58.644 INFO kablam!    Compiling debugtrace v0.1.0
Oct 12 22:16:58.649 INFO kablam!     Checking either v0.1.7
Oct 12 22:16:58.651 INFO kablam!     Checking conv v0.3.3
Oct 12 22:16:58.651 INFO kablam!    Compiling structopt-derive v0.1.6
Oct 12 22:16:58.651 INFO kablam!     Checking structopt v0.1.6
Oct 12 22:16:58.651 INFO kablam!     Checking backtrace v0.1.8
Oct 12 22:17:03.971 INFO kablam!     Checking chomp v0.3.1
Oct 12 22:17:07.952 INFO kablam!     Checking roll v0.1.0 (/source)
Oct 12 22:17:11.524 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 13.05s
Oct 12 22:17:11.545 INFO kablam! su: No module specific data is present
Oct 12 22:17:12.746 INFO running `"docker" "rm" "-f" "a0abd4bb4b4a01be66d44e38f1aa1bc11664c03596a578d245766855ba102eb2"`
Oct 12 22:17:13.060 INFO blam! a0abd4bb4b4a01be66d44e38f1aa1bc11664c03596a578d245766855ba102eb2