Sep 05 21:40:24.159 INFO checking trie-0.2.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 21:40:24.159 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 21:40:24.159 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/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 21:40:24.437 INFO blam! edee9d301bdc0d645ad5a3ef236ed267279ff7c20c3c9e7936c16c0e999b0ab4
Sep 05 21:40:24.446 INFO running `"docker" "start" "-a" "edee9d301bdc0d645ad5a3ef236ed267279ff7c20c3c9e7936c16c0e999b0ab4"`
Sep 05 21:40:25.663 INFO kablam! usermod: no changes
Sep 05 21:40:25.794 INFO kablam!     Checking trie v0.2.0 (file:///source)
Sep 05 21:40:27.252 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 05 21:40:27.252 INFO kablam!   --> src/lib.rs:13:38
Sep 05 21:40:27.252 INFO kablam!    |
Sep 05 21:40:27.252 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Sep 05 21:40:27.253 INFO kablam!    |                                      ^^^^^^^
Sep 05 21:40:27.253 INFO kablam! 
Sep 05 21:40:27.295 INFO kablam! error: aborting due to previous error
Sep 05 21:40:27.295 INFO kablam! 
Sep 05 21:40:27.296 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 21:40:27.306 INFO kablam! error: Could not compile `trie`.
Sep 05 21:40:27.307 INFO kablam! 
Sep 05 21:40:27.307 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 21:40:27.308 INFO kablam! su: No module specific data is present
Sep 05 21:40:28.469 INFO running `"docker" "rm" "-f" "edee9d301bdc0d645ad5a3ef236ed267279ff7c20c3c9e7936c16c0e999b0ab4"`
Sep 05 21:40:28.585 INFO blam! edee9d301bdc0d645ad5a3ef236ed267279ff7c20c3c9e7936c16c0e999b0ab4