Sep 17 20:26:43.773 INFO checking optional_struct-0.2.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 20:26:43.773 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 20:26:43.773 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 20:26:43.911 INFO blam! 7a3eb02fb6dd6e209bb41376d80b27d565ed34b08b91669c377807d1bc202b20
Sep 17 20:26:43.914 INFO running `"docker" "start" "-a" "7a3eb02fb6dd6e209bb41376d80b27d565ed34b08b91669c377807d1bc202b20"`
Sep 17 20:26:44.789 INFO kablam! usermod: no changes
Sep 17 20:26:44.831 INFO kablam!    Compiling optional_struct v0.2.0 (/source)
Sep 17 20:26:47.464 INFO kablam! warning: struct is never constructed: `Config`
Sep 17 20:26:47.464 INFO kablam!  --> tests/empty.rs:5:1
Sep 17 20:26:47.464 INFO kablam!   |
Sep 17 20:26:47.464 INFO kablam! 5 | struct Config {
Sep 17 20:26:47.464 INFO kablam!   | ^^^^^^^^^^^^^
Sep 17 20:26:47.464 INFO kablam!   |
Sep 17 20:26:47.464 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 17 20:26:47.464 INFO kablam! 
Sep 17 20:26:47.703 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
Sep 17 20:26:47.712 INFO kablam! su: No module specific data is present
Sep 17 20:26:48.386 INFO running `"docker" "rm" "-f" "7a3eb02fb6dd6e209bb41376d80b27d565ed34b08b91669c377807d1bc202b20"`
Sep 17 20:26:48.486 INFO blam! 7a3eb02fb6dd6e209bb41376d80b27d565ed34b08b91669c377807d1bc202b20