Sep 02 16:12:56.491 INFO checking dlx-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 16:12:56.491 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 16:12:56.492 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 16:12:56.680 INFO blam! 674687870fd0a5b3c30604d50cb3a339df08f63b486e5545611d656d7c4417ed
Sep 02 16:12:56.681 INFO running `"docker" "start" "-a" "674687870fd0a5b3c30604d50cb3a339df08f63b486e5545611d656d7c4417ed"`
Sep 02 16:12:57.451 INFO kablam!     Checking dlx v0.1.0 (file:///source)
Sep 02 16:12:59.040 INFO kablam! warning: doc comment not used by rustdoc
Sep 02 16:12:59.040 INFO kablam!   --> examples/sudoku.rs:91:9
Sep 02 16:12:59.040 INFO kablam!    |
Sep 02 16:12:59.040 INFO kablam! 91 |         /// Convert the rows from the exact cover matrix into a
Sep 02 16:12:59.040 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 16:12:59.040 INFO kablam!    |
Sep 02 16:12:59.040 INFO kablam!    = note: #[warn(unused_doc_comments)] on by default
Sep 02 16:12:59.040 INFO kablam! 
Sep 02 16:12:59.165 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
Sep 02 16:12:59.168 INFO kablam! su: No module specific data is present
Sep 02 16:12:59.630 INFO running `"docker" "rm" "-f" "674687870fd0a5b3c30604d50cb3a339df08f63b486e5545611d656d7c4417ed"`
Sep 02 16:12:59.738 INFO blam! 674687870fd0a5b3c30604d50cb3a339df08f63b486e5545611d656d7c4417ed