Sep 01 22:36:25.459 INFO checking dlx-0.1.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 22:36:25.459 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 22:36:25.459 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 22:36:25.596 INFO blam! 2a97b6908521f5fd7ec98cf0d3794a860491e9be05540072dd88f5279c6d2774
Sep 01 22:36:25.598 INFO running `"docker" "start" "-a" "2a97b6908521f5fd7ec98cf0d3794a860491e9be05540072dd88f5279c6d2774"`
Sep 01 22:36:26.454 INFO kablam!     Checking dlx v0.1.0 (file:///source)
Sep 01 22:36:27.619 INFO kablam! warning: doc comment not used by rustdoc
Sep 01 22:36:27.620 INFO kablam!   --> examples/sudoku.rs:91:9
Sep 01 22:36:27.620 INFO kablam!    |
Sep 01 22:36:27.620 INFO kablam! 91 |         /// Convert the rows from the exact cover matrix into a
Sep 01 22:36:27.620 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 22:36:27.620 INFO kablam!    |
Sep 01 22:36:27.620 INFO kablam!    = note: #[warn(unused_doc_comments)] on by default
Sep 01 22:36:27.620 INFO kablam! 
Sep 01 22:36:27.735 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
Sep 01 22:36:27.737 INFO kablam! su: No module specific data is present
Sep 01 22:36:28.203 INFO running `"docker" "rm" "-f" "2a97b6908521f5fd7ec98cf0d3794a860491e9be05540072dd88f5279c6d2774"`
Sep 01 22:36:28.334 INFO blam! 2a97b6908521f5fd7ec98cf0d3794a860491e9be05540072dd88f5279c6d2774