Sep 01 03:04:13.597 INFO checking unicode-normalization-0.1.7 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 03:04:13.597 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 03:04:13.597 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/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 01 03:04:13.758 INFO blam! ef0c8ad5a6b7e892c764bfcd162f2de7daac58cab1fc42fee11694e27524a349
Sep 01 03:04:13.760 INFO running `"docker" "start" "-a" "ef0c8ad5a6b7e892c764bfcd162f2de7daac58cab1fc42fee11694e27524a349"`
Sep 01 03:04:14.632 INFO kablam!     Checking unicode-normalization v0.1.7 (file:///source)
Sep 01 03:04:48.960 INFO kablam! warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Sep 01 03:04:48.960 INFO kablam!  --> benches/bench.rs:2:12
Sep 01 03:04:48.960 INFO kablam!   |
Sep 01 03:04:48.960 INFO kablam! 2 | #![feature(iterator_step_by)]
Sep 01 03:04:48.960 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 01 03:04:48.960 INFO kablam!   |
Sep 01 03:04:48.960 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 03:04:48.960 INFO kablam! 
Sep 01 03:04:54.857 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 40.24s
Sep 01 03:04:54.860 INFO kablam! su: No module specific data is present
Sep 01 03:04:55.280 INFO running `"docker" "rm" "-f" "ef0c8ad5a6b7e892c764bfcd162f2de7daac58cab1fc42fee11694e27524a349"`
Sep 01 03:04:55.391 INFO blam! ef0c8ad5a6b7e892c764bfcd162f2de7daac58cab1fc42fee11694e27524a349