Oct 13 11:41:02.357 INFO checking needle-0.1.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 11:41:02.359 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/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 11:41:02.744 INFO blam! 1990ba0468263c07be96706d584fc221354ea81aa44082f1b99981f51fc69f37
Oct 13 11:41:02.752 INFO running `"docker" "start" "-a" "1990ba0468263c07be96706d584fc221354ea81aa44082f1b99981f51fc69f37"`
Oct 13 11:41:03.932 INFO kablam! usermod: no changes
Oct 13 11:41:04.016 INFO kablam!     Checking needle v0.1.1 (/source)
Oct 13 11:41:04.904 INFO kablam! warning: unused import: `std::str`
Oct 13 11:41:04.904 INFO kablam!    --> src/horspool.rs:133:9
Oct 13 11:41:04.904 INFO kablam!     |
Oct 13 11:41:04.904 INFO kablam! 133 |     use std::str;
Oct 13 11:41:04.904 INFO kablam!     |         ^^^^^^^^
Oct 13 11:41:04.904 INFO kablam!     |
Oct 13 11:41:04.904 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 13 11:41:04.904 INFO kablam! 
Oct 13 11:41:05.657 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
Oct 13 11:41:05.660 INFO kablam! su: No module specific data is present
Oct 13 11:41:07.135 INFO running `"docker" "rm" "-f" "1990ba0468263c07be96706d584fc221354ea81aa44082f1b99981f51fc69f37"`
Oct 13 11:41:07.468 INFO blam! 1990ba0468263c07be96706d584fc221354ea81aa44082f1b99981f51fc69f37