Oct 22 01:06:52.488 INFO checking optional_struct-0.2.0 against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 22 01:06:52.489 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-7/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 22 01:06:52.908 INFO blam! 10c340ea38f3cd5c7b423ef815882240d81a8922d10a43734f56acb4a70dc10b
Oct 22 01:06:52.910 INFO running `"docker" "start" "-a" "10c340ea38f3cd5c7b423ef815882240d81a8922d10a43734f56acb4a70dc10b"`
Oct 22 01:06:54.045 INFO kablam! usermod: no changes
Oct 22 01:06:54.132 INFO kablam!    Compiling optional_struct v0.2.0 (/source)
Oct 22 01:07:02.844 INFO kablam! warning: struct is never constructed: `Config`
Oct 22 01:07:02.844 INFO kablam!  --> tests/empty.rs:5:1
Oct 22 01:07:02.844 INFO kablam!   |
Oct 22 01:07:02.844 INFO kablam! 5 | struct Config {
Oct 22 01:07:02.844 INFO kablam!   | ^^^^^^^^^^^^^
Oct 22 01:07:02.844 INFO kablam!   |
Oct 22 01:07:02.844 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 22 01:07:02.844 INFO kablam! 
Oct 22 01:07:02.974 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.88s
Oct 22 01:07:02.985 INFO kablam! su: No module specific data is present
Oct 22 01:07:03.325 INFO running `"docker" "rm" "-f" "10c340ea38f3cd5c7b423ef815882240d81a8922d10a43734f56acb4a70dc10b"`
Oct 22 01:07:03.398 INFO blam! 10c340ea38f3cd5c7b423ef815882240d81a8922d10a43734f56acb4a70dc10b