Sep 04 00:03:32.187 INFO checking trie-0.2.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 00:03:32.188 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 00:03:32.188 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 00:03:32.393 INFO blam! ec4db18381ab943a0bccd330ebf2e819fee3c5538b8b2f559aec6879404c0226
Sep 04 00:03:32.396 INFO running `"docker" "start" "-a" "ec4db18381ab943a0bccd330ebf2e819fee3c5538b8b2f559aec6879404c0226"`
Sep 04 00:03:33.045 INFO kablam!     Checking bit-set v0.5.0
Sep 04 00:03:33.644 INFO kablam!     Checking ordered_iter v0.1.1
Sep 04 00:03:34.024 INFO kablam!     Checking trie v0.2.0 (file:///source)
Sep 04 00:03:35.909 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 04 00:03:35.909 INFO kablam!   --> src/lib.rs:13:38
Sep 04 00:03:35.909 INFO kablam!    |
Sep 04 00:03:35.909 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Sep 04 00:03:35.909 INFO kablam!    |                                      ^^^^^^^
Sep 04 00:03:35.909 INFO kablam! 
Sep 04 00:03:35.960 INFO kablam! error: aborting due to previous error
Sep 04 00:03:35.960 INFO kablam! 
Sep 04 00:03:35.960 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 04 00:03:35.969 INFO kablam! error: Could not compile `trie`.
Sep 04 00:03:35.969 INFO kablam! 
Sep 04 00:03:35.969 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 00:03:35.970 INFO kablam! su: No module specific data is present
Sep 04 00:03:36.336 INFO running `"docker" "rm" "-f" "ec4db18381ab943a0bccd330ebf2e819fee3c5538b8b2f559aec6879404c0226"`
Sep 04 00:03:36.436 INFO blam! ec4db18381ab943a0bccd330ebf2e819fee3c5538b8b2f559aec6879404c0226