Dec 12 10:31:25.258 INFO checking optional_struct-0.2.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 10:31:25.258 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 10:31:25.622 INFO [stdout] c73ba74b50166b9778ba0c82859647b36fe90b50a5a2102252e4ebb97c72c7eb
Dec 12 10:31:25.628 INFO running `"docker" "start" "-a" "c73ba74b50166b9778ba0c82859647b36fe90b50a5a2102252e4ebb97c72c7eb"`
Dec 12 10:31:26.912 INFO [stderr] usermod: no changes
Dec 12 10:31:26.975 INFO [stderr]    Compiling optional_struct v0.2.0 (/source)
Dec 12 10:31:33.020 INFO [stderr] warning: struct is never constructed: `Config`
Dec 12 10:31:33.020 INFO [stderr]  --> tests/empty.rs:5:1
Dec 12 10:31:33.020 INFO [stderr]   |
Dec 12 10:31:33.020 INFO [stderr] 5 | struct Config {
Dec 12 10:31:33.020 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 12 10:31:33.020 INFO [stderr]   |
Dec 12 10:31:33.020 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 10:31:33.020 INFO [stderr] 
Dec 12 10:31:33.063 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.13s
Dec 12 10:31:33.076 INFO [stderr] su: No module specific data is present
Dec 12 10:31:33.756 INFO running `"docker" "inspect" "c73ba74b50166b9778ba0c82859647b36fe90b50a5a2102252e4ebb97c72c7eb"`
Dec 12 10:31:34.256 INFO running `"docker" "rm" "-f" "c73ba74b50166b9778ba0c82859647b36fe90b50a5a2102252e4ebb97c72c7eb"`
Dec 12 10:31:34.756 INFO [stdout] c73ba74b50166b9778ba0c82859647b36fe90b50a5a2102252e4ebb97c72c7eb