Sep 05 21:40:24.735 INFO checking trie-0.2.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 21:40:24.735 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 21:40:24.735 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-3/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 21:40:25.047 INFO blam! c0364af4d6a43977794dc49efb07884fa2912ae8f7a5572b566c44c460c956b9
Sep 05 21:40:25.048 INFO running `"docker" "start" "-a" "c0364af4d6a43977794dc49efb07884fa2912ae8f7a5572b566c44c460c956b9"`
Sep 05 21:40:26.629 INFO kablam! usermod: no changes
Sep 05 21:40:26.698 INFO kablam!     Checking bit-set v0.5.0
Sep 05 21:40:27.134 INFO kablam!     Checking ordered_iter v0.1.1
Sep 05 21:40:27.482 INFO kablam!     Checking trie v0.2.0 (file:///source)
Sep 05 21:40:28.725 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 05 21:40:28.726 INFO kablam!   --> src/lib.rs:13:38
Sep 05 21:40:28.726 INFO kablam!    |
Sep 05 21:40:28.726 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Sep 05 21:40:28.726 INFO kablam!    |                                      ^^^^^^^
Sep 05 21:40:28.726 INFO kablam! 
Sep 05 21:40:28.761 INFO kablam! error: aborting due to previous error
Sep 05 21:40:28.761 INFO kablam! 
Sep 05 21:40:28.761 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 21:40:28.769 INFO kablam! error: Could not compile `trie`.
Sep 05 21:40:28.769 INFO kablam! 
Sep 05 21:40:28.769 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 21:40:28.771 INFO kablam! su: No module specific data is present
Sep 05 21:40:29.269 INFO running `"docker" "rm" "-f" "c0364af4d6a43977794dc49efb07884fa2912ae8f7a5572b566c44c460c956b9"`
Sep 05 21:40:29.514 INFO blam! c0364af4d6a43977794dc49efb07884fa2912ae8f7a5572b566c44c460c956b9