Sep 21 06:08:51.663 INFO checking optional_struct-0.2.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 06:08:51.663 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 06:08:51.663 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-7/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 06:08:51.797 INFO blam! 389b8ac4016fbfb92eab71c7a542a24dde7e595f74196cf518af9ba971b8d518
Sep 21 06:08:51.799 INFO running `"docker" "start" "-a" "389b8ac4016fbfb92eab71c7a542a24dde7e595f74196cf518af9ba971b8d518"`
Sep 21 06:08:52.672 INFO kablam! usermod: no changes
Sep 21 06:08:52.713 INFO kablam!    Compiling optional_struct v0.2.0 (/source)
Sep 21 06:08:55.084 INFO kablam! warning: struct is never constructed: `Config`
Sep 21 06:08:55.084 INFO kablam!  --> tests/empty.rs:5:1
Sep 21 06:08:55.084 INFO kablam!   |
Sep 21 06:08:55.085 INFO kablam! 5 | struct Config {
Sep 21 06:08:55.085 INFO kablam!   | ^^^^^^^^^^^^^
Sep 21 06:08:55.085 INFO kablam!   |
Sep 21 06:08:55.085 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 21 06:08:55.085 INFO kablam! 
Sep 21 06:08:55.127 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
Sep 21 06:08:55.130 INFO kablam! su: No module specific data is present
Sep 21 06:08:55.997 INFO running `"docker" "rm" "-f" "389b8ac4016fbfb92eab71c7a542a24dde7e595f74196cf518af9ba971b8d518"`
Sep 21 06:08:56.046 INFO blam! 389b8ac4016fbfb92eab71c7a542a24dde7e595f74196cf518af9ba971b8d518