Sep 05 21:24:57.859 INFO checking unicode-normalization-0.1.7 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 21:24:57.859 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 21:24:57.859 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-0/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 05 21:24:58.099 INFO blam! b0e0d8bdee2a663616b4320dcadf509230aa35032e4949d9d935a87d7a96ed82
Sep 05 21:24:58.100 INFO running `"docker" "start" "-a" "b0e0d8bdee2a663616b4320dcadf509230aa35032e4949d9d935a87d7a96ed82"`
Sep 05 21:24:58.730 INFO kablam! usermod: no changes
Sep 05 21:24:58.755 INFO kablam!     Checking unicode-normalization v0.1.7 (file:///source)
Sep 05 21:25:25.777 INFO kablam! warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Sep 05 21:25:25.777 INFO kablam!  --> benches/bench.rs:2:12
Sep 05 21:25:25.777 INFO kablam!   |
Sep 05 21:25:25.777 INFO kablam! 2 | #![feature(iterator_step_by)]
Sep 05 21:25:25.777 INFO kablam!   |            ^^^^^^^^^^^^^^^^
Sep 05 21:25:25.777 INFO kablam!   |
Sep 05 21:25:25.777 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 05 21:25:25.777 INFO kablam! 
Sep 05 21:25:30.584 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 31.84s
Sep 05 21:25:30.586 INFO kablam! su: No module specific data is present
Sep 05 21:25:31.400 INFO running `"docker" "rm" "-f" "b0e0d8bdee2a663616b4320dcadf509230aa35032e4949d9d935a87d7a96ed82"`
Sep 05 21:25:31.480 INFO blam! b0e0d8bdee2a663616b4320dcadf509230aa35032e4949d9d935a87d7a96ed82