Sep 14 07:24:57.817 INFO checking trie-0.2.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 07:24:57.817 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 07:24:57.817 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-0/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 07:24:58.068 INFO blam! 5f9ac3af9b76df7d0368ad2aeb120b1f9418af31a169e266a5c50ad2900641ff
Sep 14 07:24:58.068 INFO running `"docker" "start" "-a" "5f9ac3af9b76df7d0368ad2aeb120b1f9418af31a169e266a5c50ad2900641ff"`
Sep 14 07:24:58.814 INFO kablam! usermod: no changes
Sep 14 07:24:58.887 INFO kablam!     Checking bit-set v0.5.0
Sep 14 07:24:59.327 INFO kablam!     Checking ordered_iter v0.1.1
Sep 14 07:24:59.699 INFO kablam!     Checking trie v0.2.0 (file:///source)
Sep 14 07:25:01.294 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 14 07:25:01.295 INFO kablam!   --> src/lib.rs:13:38
Sep 14 07:25:01.295 INFO kablam!    |
Sep 14 07:25:01.295 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Sep 14 07:25:01.295 INFO kablam!    |                                      ^^^^^^^
Sep 14 07:25:01.295 INFO kablam! 
Sep 14 07:25:01.346 INFO kablam! error: aborting due to previous error
Sep 14 07:25:01.346 INFO kablam! 
Sep 14 07:25:01.347 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 14 07:25:01.362 INFO kablam! error: Could not compile `trie`.
Sep 14 07:25:01.363 INFO kablam! 
Sep 14 07:25:01.363 INFO kablam! To learn more, run the command again with --verbose.
Sep 14 07:25:01.363 INFO kablam! su: No module specific data is present
Sep 14 07:25:02.443 INFO running `"docker" "rm" "-f" "5f9ac3af9b76df7d0368ad2aeb120b1f9418af31a169e266a5c50ad2900641ff"`
Sep 14 07:25:02.662 INFO blam! 5f9ac3af9b76df7d0368ad2aeb120b1f9418af31a169e266a5c50ad2900641ff