Oct 27 18:26:23.308 INFO checking optional_struct-0.2.0 against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 18:26:23.308 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-3/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 27 18:26:23.631 INFO blam! 7fa0b3394e5c9afe7b040fc2ff69d4381623ee92076083858f2cece0010cd2bf
Oct 27 18:26:23.636 INFO running `"docker" "start" "-a" "7fa0b3394e5c9afe7b040fc2ff69d4381623ee92076083858f2cece0010cd2bf"`
Oct 27 18:26:24.557 INFO kablam! usermod: no changes
Oct 27 18:26:24.627 INFO kablam!    Compiling optional_struct v0.2.0 (/source)
Oct 27 18:26:32.028 INFO kablam! warning: struct is never constructed: `Config`
Oct 27 18:26:32.029 INFO kablam!  --> tests/empty.rs:5:1
Oct 27 18:26:32.029 INFO kablam!   |
Oct 27 18:26:32.029 INFO kablam! 5 | struct Config {
Oct 27 18:26:32.029 INFO kablam!   | ^^^^^^^^^^^^^
Oct 27 18:26:32.029 INFO kablam!   |
Oct 27 18:26:32.030 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 27 18:26:32.030 INFO kablam! 
Oct 27 18:26:32.042 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.45s
Oct 27 18:26:32.051 INFO kablam! su: No module specific data is present
Oct 27 18:26:33.075 INFO running `"docker" "rm" "-f" "7fa0b3394e5c9afe7b040fc2ff69d4381623ee92076083858f2cece0010cd2bf"`
Oct 27 18:26:33.388 INFO blam! 7fa0b3394e5c9afe7b040fc2ff69d4381623ee92076083858f2cece0010cd2bf