Aug 29 23:37:56.779 INFO checking trie-0.2.0 against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 29 23:37:56.779 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 29 23:37:56.779 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-0/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 29 23:37:56.929 INFO blam! 9ba0eab09a20acb1fb35fdc23ff2086e944a65449fbac55216c42434d4426c7b
Aug 29 23:37:56.931 INFO running `"docker" "start" "-a" "9ba0eab09a20acb1fb35fdc23ff2086e944a65449fbac55216c42434d4426c7b"`
Aug 29 23:37:57.673 INFO kablam!     Checking bit-set v0.5.0
Aug 29 23:37:58.248 INFO kablam!     Checking ordered_iter v0.1.1
Aug 29 23:37:58.657 INFO kablam!     Checking trie v0.2.0 (file:///source)
Aug 29 23:38:00.741 INFO kablam! error[E0635]: unknown feature `step_by`
Aug 29 23:38:00.742 INFO kablam!   --> src/lib.rs:13:38
Aug 29 23:38:00.742 INFO kablam!    |
Aug 29 23:38:00.742 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Aug 29 23:38:00.742 INFO kablam!    |                                      ^^^^^^^
Aug 29 23:38:00.742 INFO kablam! 
Aug 29 23:38:00.796 INFO kablam! error: aborting due to previous error
Aug 29 23:38:00.796 INFO kablam! 
Aug 29 23:38:00.796 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 29 23:38:00.806 INFO kablam! error: Could not compile `trie`.
Aug 29 23:38:00.806 INFO kablam! 
Aug 29 23:38:00.806 INFO kablam! To learn more, run the command again with --verbose.
Aug 29 23:38:00.807 INFO kablam! su: No module specific data is present
Aug 29 23:38:01.265 INFO running `"docker" "rm" "-f" "9ba0eab09a20acb1fb35fdc23ff2086e944a65449fbac55216c42434d4426c7b"`
Aug 29 23:38:01.370 INFO blam! 9ba0eab09a20acb1fb35fdc23ff2086e944a65449fbac55216c42434d4426c7b