Oct 12 20:41:41.730 INFO checking hitripekac/z85tools against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 20:41:41.732 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 20:41:42.152 INFO blam! 86c78597901a699cbd6856679b20c82aed59552f607375f1a72c534b5d089bec
Oct 12 20:41:42.158 INFO running `"docker" "start" "-a" "86c78597901a699cbd6856679b20c82aed59552f607375f1a72c534b5d089bec"`
Oct 12 20:41:42.590 INFO kablam! usermod: no changes
Oct 12 20:41:42.623 INFO kablam!     Checking decoder v0.1.0 (/source)
Oct 12 20:41:42.955 INFO kablam! warning: unused import: `std::str`
Oct 12 20:41:42.955 INFO kablam!   --> src/lib.rs:17:9
Oct 12 20:41:42.955 INFO kablam!    |
Oct 12 20:41:42.955 INFO kablam! 17 |     use std::str;
Oct 12 20:41:42.955 INFO kablam!    |         ^^^^^^^^
Oct 12 20:41:42.955 INFO kablam!    |
Oct 12 20:41:42.955 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 12 20:41:42.955 INFO kablam! 
Oct 12 20:41:43.068 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
Oct 12 20:41:43.070 INFO kablam! su: No module specific data is present
Oct 12 20:41:43.347 INFO running `"docker" "rm" "-f" "86c78597901a699cbd6856679b20c82aed59552f607375f1a72c534b5d089bec"`
Oct 12 20:41:43.501 INFO blam! 86c78597901a699cbd6856679b20c82aed59552f607375f1a72c534b5d089bec