Oct 13 09:12:50.769 INFO checking rustfix-0.4.2 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 09:12:50.769 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 13 09:12:51.146 INFO blam! a6408505553cf20524deb7ee6d1324715cb0731c6d8e4af9c71f6c3ae11e5ce6
Oct 13 09:12:51.154 INFO running `"docker" "start" "-a" "a6408505553cf20524deb7ee6d1324715cb0731c6d8e4af9c71f6c3ae11e5ce6"`
Oct 13 09:12:51.832 INFO kablam! usermod: no changes
Oct 13 09:12:51.989 INFO kablam!    Compiling winapi v0.3.6
Oct 13 09:12:51.992 INFO kablam!     Checking rand v0.4.3
Oct 13 09:12:52.006 INFO kablam!     Checking os_pipe v0.6.2
Oct 13 09:12:52.007 INFO kablam!     Checking rustfix v0.4.2 (/source)
Oct 13 09:12:55.104 INFO kablam!     Checking proptest v0.7.2
Oct 13 09:12:55.104 INFO kablam!     Checking tempdir v0.3.7
Oct 13 09:12:56.493 INFO kablam!     Checking shared_child v0.3.3
Oct 13 09:12:57.342 INFO kablam!     Checking duct v0.9.2
Oct 13 09:13:08.827 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 16.97s
Oct 13 09:13:08.834 INFO kablam! su: No module specific data is present
Oct 13 09:13:09.412 INFO running `"docker" "rm" "-f" "a6408505553cf20524deb7ee6d1324715cb0731c6d8e4af9c71f6c3ae11e5ce6"`
Oct 13 09:13:09.753 INFO blam! a6408505553cf20524deb7ee6d1324715cb0731c6d8e4af9c71f6c3ae11e5ce6