Oct 12 19:55:25.506 INFO checking jdhorwitz/mandelbrot against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 19:55:25.506 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/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 19:55:25.914 INFO blam! e77adbbce7e138a2664b8df6b86c2e7cac1f42c985ec1b204c6b858317a926da
Oct 12 19:55:25.915 INFO running `"docker" "start" "-a" "e77adbbce7e138a2664b8df6b86c2e7cac1f42c985ec1b204c6b858317a926da"`
Oct 12 19:55:27.097 INFO kablam! usermod: no changes
Oct 12 19:55:27.209 INFO kablam!     Checking lzw v0.9.0
Oct 12 19:55:27.209 INFO kablam!    Compiling miniz-sys v0.1.9
Oct 12 19:55:28.132 INFO kablam!     Checking gif v0.7.0
Oct 12 19:55:30.016 INFO kablam!     Checking flate2 v0.2.17
Oct 12 19:55:30.818 INFO kablam!     Checking png v0.4.3
Oct 12 19:55:31.869 INFO kablam!     Checking image v0.6.1
Oct 12 19:55:36.110 INFO kablam!     Checking mandelbrot v0.1.0 (/source)
Oct 12 19:55:37.988 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.87s
Oct 12 19:55:37.989 INFO kablam! su: No module specific data is present
Oct 12 19:55:38.972 INFO running `"docker" "rm" "-f" "e77adbbce7e138a2664b8df6b86c2e7cac1f42c985ec1b204c6b858317a926da"`
Oct 12 19:55:39.222 INFO blam! e77adbbce7e138a2664b8df6b86c2e7cac1f42c985ec1b204c6b858317a926da