Sep 21 06:08:51.799 INFO checking optional_struct-0.2.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 06:08:51.799 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 06:08:51.799 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 06:08:51.946 INFO blam! 75a1f6966b8ad8f94d4f4b7af1a43d02545f651c2109bda6b5c04a13630ae413
Sep 21 06:08:51.948 INFO running `"docker" "start" "-a" "75a1f6966b8ad8f94d4f4b7af1a43d02545f651c2109bda6b5c04a13630ae413"`
Sep 21 06:08:53.161 INFO kablam! usermod: no changes
Sep 21 06:08:53.197 INFO kablam!    Compiling optional_struct v0.2.0 (/source)
Sep 21 06:08:55.583 INFO kablam! warning: struct is never constructed: `Config`
Sep 21 06:08:55.583 INFO kablam!  --> tests/empty.rs:5:1
Sep 21 06:08:55.583 INFO kablam!   |
Sep 21 06:08:55.583 INFO kablam! 5 | struct Config {
Sep 21 06:08:55.583 INFO kablam!   | ^^^^^^^^^^^^^
Sep 21 06:08:55.583 INFO kablam!   |
Sep 21 06:08:55.583 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 21 06:08:55.583 INFO kablam! 
Sep 21 06:08:55.598 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
Sep 21 06:08:55.601 INFO kablam! su: No module specific data is present
Sep 21 06:08:56.281 INFO running `"docker" "rm" "-f" "75a1f6966b8ad8f94d4f4b7af1a43d02545f651c2109bda6b5c04a13630ae413"`
Sep 21 06:08:56.340 INFO blam! 75a1f6966b8ad8f94d4f4b7af1a43d02545f651c2109bda6b5c04a13630ae413