Sep 06 02:55:26.088 INFO checking optional_struct-0.2.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 02:55:26.088 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 02:55:26.088 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 02:55:26.222 INFO blam! b5b9b1adb2da0278efe2487617aac4ddbdd1270bdaad3cfab67e1c90798449f9
Sep 06 02:55:26.223 INFO running `"docker" "start" "-a" "b5b9b1adb2da0278efe2487617aac4ddbdd1270bdaad3cfab67e1c90798449f9"`
Sep 06 02:55:27.169 INFO kablam! usermod: no changes
Sep 06 02:55:27.192 INFO kablam!    Compiling optional_struct v0.2.0 (file:///source)
Sep 06 02:55:30.008 INFO kablam! warning: struct is never constructed: `Config`
Sep 06 02:55:30.008 INFO kablam!  --> tests/empty.rs:5:1
Sep 06 02:55:30.008 INFO kablam!   |
Sep 06 02:55:30.008 INFO kablam! 5 | struct Config {
Sep 06 02:55:30.008 INFO kablam!   | ^^^^^^^^^^^^^
Sep 06 02:55:30.008 INFO kablam!   |
Sep 06 02:55:30.008 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 06 02:55:30.008 INFO kablam! 
Sep 06 02:55:30.134 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
Sep 06 02:55:30.134 INFO kablam! su: No module specific data is present
Sep 06 02:55:30.942 INFO running `"docker" "rm" "-f" "b5b9b1adb2da0278efe2487617aac4ddbdd1270bdaad3cfab67e1c90798449f9"`
Sep 06 02:55:30.991 INFO blam! b5b9b1adb2da0278efe2487617aac4ddbdd1270bdaad3cfab67e1c90798449f9