Aug 30 00:28:06.917 INFO checking trie-0.2.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 00:28:06.917 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 00:28:06.917 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-1/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 00:28:07.055 INFO blam! fb9d9166062d00740e82842a47e2253bd945b6bf5352a44e653847b9cd8a42b7
Aug 30 00:28:07.058 INFO running `"docker" "start" "-a" "fb9d9166062d00740e82842a47e2253bd945b6bf5352a44e653847b9cd8a42b7"`
Aug 30 00:28:07.758 INFO kablam!     Checking bit-set v0.5.0
Aug 30 00:28:08.259 INFO kablam!     Checking ordered_iter v0.1.1
Aug 30 00:28:08.636 INFO kablam!     Checking trie v0.2.0 (file:///source)
Aug 30 00:28:10.580 INFO kablam! error[E0635]: unknown feature `step_by`
Aug 30 00:28:10.580 INFO kablam!   --> src/lib.rs:13:38
Aug 30 00:28:10.580 INFO kablam!    |
Aug 30 00:28:10.580 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Aug 30 00:28:10.580 INFO kablam!    |                                      ^^^^^^^
Aug 30 00:28:10.580 INFO kablam! 
Aug 30 00:28:10.626 INFO kablam! error: aborting due to previous error
Aug 30 00:28:10.626 INFO kablam! 
Aug 30 00:28:10.626 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 00:28:10.633 INFO kablam! error: Could not compile `trie`.
Aug 30 00:28:10.633 INFO kablam! 
Aug 30 00:28:10.633 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 00:28:10.635 INFO kablam! su: No module specific data is present
Aug 30 00:28:11.065 INFO running `"docker" "rm" "-f" "fb9d9166062d00740e82842a47e2253bd945b6bf5352a44e653847b9cd8a42b7"`
Aug 30 00:28:11.149 INFO blam! fb9d9166062d00740e82842a47e2253bd945b6bf5352a44e653847b9cd8a42b7