Sep 01 03:34:42.392 INFO checking trie-0.2.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 03:34:42.392 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 03:34:42.392 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/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 03:34:42.574 INFO blam! fb5acca20922092c4648f6e7c964284bbeafff17cce8c2051aeb10cf27eb60ed
Sep 01 03:34:42.576 INFO running `"docker" "start" "-a" "fb5acca20922092c4648f6e7c964284bbeafff17cce8c2051aeb10cf27eb60ed"`
Sep 01 03:34:43.279 INFO kablam!     Checking bit-set v0.5.0
Sep 01 03:34:43.828 INFO kablam!     Checking ordered_iter v0.1.1
Sep 01 03:34:44.188 INFO kablam!     Checking trie v0.2.0 (file:///source)
Sep 01 03:34:45.983 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 01 03:34:45.983 INFO kablam!   --> src/lib.rs:13:38
Sep 01 03:34:45.983 INFO kablam!    |
Sep 01 03:34:45.983 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Sep 01 03:34:45.983 INFO kablam!    |                                      ^^^^^^^
Sep 01 03:34:45.983 INFO kablam! 
Sep 01 03:34:46.020 INFO kablam! error: aborting due to previous error
Sep 01 03:34:46.020 INFO kablam! 
Sep 01 03:34:46.020 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 01 03:34:46.027 INFO kablam! error: Could not compile `trie`.
Sep 01 03:34:46.027 INFO kablam! 
Sep 01 03:34:46.027 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 03:34:46.028 INFO kablam! su: No module specific data is present
Sep 01 03:34:46.626 INFO running `"docker" "rm" "-f" "fb5acca20922092c4648f6e7c964284bbeafff17cce8c2051aeb10cf27eb60ed"`
Sep 01 03:34:46.715 INFO blam! fb5acca20922092c4648f6e7c964284bbeafff17cce8c2051aeb10cf27eb60ed