Oct 13 10:36:43.761 INFO checking prost-build-0.4.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 10:36:43.761 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/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 13 10:36:44.266 INFO blam! 19bdcbd9f70ce1e0eabfae5fa2f39504cdefd2df75cb22d8773c31d745feda7d
Oct 13 10:36:44.268 INFO running `"docker" "start" "-a" "19bdcbd9f70ce1e0eabfae5fa2f39504cdefd2df75cb22d8773c31d745feda7d"`
Oct 13 10:36:44.844 INFO kablam! usermod: no changes
Oct 13 10:36:44.932 INFO kablam!     Checking multimap v0.4.0
Oct 13 10:36:44.932 INFO kablam!     Checking env_logger v0.5.13
Oct 13 10:36:44.932 INFO kablam!    Compiling which v2.0.0
Oct 13 10:36:44.932 INFO kablam!    Compiling prost-derive v0.4.0
Oct 13 10:36:47.788 INFO kablam!    Compiling prost-build v0.4.0 (/source)
Oct 13 10:36:58.649 INFO kablam!     Checking prost-types v0.4.0
Oct 13 10:37:05.890 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 21.03s
Oct 13 10:37:05.897 INFO kablam! su: No module specific data is present
Oct 13 10:37:07.313 INFO running `"docker" "rm" "-f" "19bdcbd9f70ce1e0eabfae5fa2f39504cdefd2df75cb22d8773c31d745feda7d"`
Oct 13 10:37:07.591 INFO blam! 19bdcbd9f70ce1e0eabfae5fa2f39504cdefd2df75cb22d8773c31d745feda7d