Oct 12 20:13:37.435 INFO checking ivanovaleksey/deser against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 20:13:37.437 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/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 20:13:37.939 INFO blam! 962556867dffd72e3623dea713e29ff4216c017cd2f500f6d531f0fc292cb54f
Oct 12 20:13:37.946 INFO running `"docker" "start" "-a" "962556867dffd72e3623dea713e29ff4216c017cd2f500f6d531f0fc292cb54f"`
Oct 12 20:13:39.060 INFO kablam! usermod: no changes
Oct 12 20:13:39.193 INFO kablam!     Checking deser v0.1.0 (/source)
Oct 12 20:13:41.524 INFO kablam! warning: unreachable pattern
Oct 12 20:13:41.524 INFO kablam!   --> examples/first.rs:52:9
Oct 12 20:13:41.524 INFO kablam!    |
Oct 12 20:13:41.524 INFO kablam! 52 |         _ => unreachable!(),
Oct 12 20:13:41.524 INFO kablam!    |         ^
Oct 12 20:13:41.524 INFO kablam!    |
Oct 12 20:13:41.524 INFO kablam!    = note: #[warn(unreachable_patterns)] on by default
Oct 12 20:13:41.524 INFO kablam! 
Oct 12 20:13:42.746 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.65s
Oct 12 20:13:42.770 INFO kablam! su: No module specific data is present
Oct 12 20:13:43.246 INFO running `"docker" "rm" "-f" "962556867dffd72e3623dea713e29ff4216c017cd2f500f6d531f0fc292cb54f"`
Oct 12 20:13:43.493 INFO blam! 962556867dffd72e3623dea713e29ff4216c017cd2f500f6d531f0fc292cb54f