Sep 03 23:31:53.543 INFO checking unicode-normalization-0.1.7 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 03 23:31:53.543 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 03 23:31:53.543 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-0/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 23:31:53.706 INFO blam! 349a1be636fe5b24cef1c441ef5a8a3313562df5fc0be06920965ead2f2407d2
Sep 03 23:31:53.708 INFO running `"docker" "start" "-a" "349a1be636fe5b24cef1c441ef5a8a3313562df5fc0be06920965ead2f2407d2"`
Sep 03 23:31:54.397 INFO kablam!     Checking unicode-normalization v0.1.7 (file:///source)
Sep 03 23:32:29.865 INFO kablam! warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Sep 03 23:32:29.865 INFO kablam!  --> benches/bench.rs:2:12
Sep 03 23:32:29.865 INFO kablam!   |
Sep 03 23:32:29.865 INFO kablam! 2 | #![feature(iterator_step_by)]
Sep 03 23:32:29.866 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 03 23:32:29.866 INFO kablam!   |
Sep 03 23:32:29.866 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 03 23:32:29.866 INFO kablam! 
Sep 03 23:32:36.062 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 41.67s
Sep 03 23:32:36.066 INFO kablam! su: No module specific data is present
Sep 03 23:32:36.407 INFO running `"docker" "rm" "-f" "349a1be636fe5b24cef1c441ef5a8a3313562df5fc0be06920965ead2f2407d2"`
Sep 03 23:32:36.530 INFO blam! 349a1be636fe5b24cef1c441ef5a8a3313562df5fc0be06920965ead2f2407d2