Sep 17 15:46:44.238 INFO checking trie-0.2.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 15:46:44.238 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 15:46:44.238 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-0/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 15:46:44.479 INFO blam! 84a42be7bb5297edbbfd737270c8769204300e810aeff82c9b13676e77860dde
Sep 17 15:46:44.485 INFO running `"docker" "start" "-a" "84a42be7bb5297edbbfd737270c8769204300e810aeff82c9b13676e77860dde"`
Sep 17 15:46:45.519 INFO kablam! usermod: no changes
Sep 17 15:46:45.602 INFO kablam!     Checking bit-set v0.5.0
Sep 17 15:46:46.114 INFO kablam!     Checking ordered_iter v0.1.1
Sep 17 15:46:46.532 INFO kablam!     Checking trie v0.2.0 (/source)
Sep 17 15:46:48.387 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 17 15:46:48.387 INFO kablam!   --> src/lib.rs:13:38
Sep 17 15:46:48.387 INFO kablam!    |
Sep 17 15:46:48.387 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Sep 17 15:46:48.387 INFO kablam!    |                                      ^^^^^^^
Sep 17 15:46:48.387 INFO kablam! 
Sep 17 15:46:48.429 INFO kablam! error: aborting due to previous error
Sep 17 15:46:48.429 INFO kablam! 
Sep 17 15:46:48.429 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 17 15:46:48.443 INFO kablam! error: Could not compile `trie`.
Sep 17 15:46:48.443 INFO kablam! 
Sep 17 15:46:48.443 INFO kablam! To learn more, run the command again with --verbose.
Sep 17 15:46:48.443 INFO kablam! su: No module specific data is present
Sep 17 15:46:49.408 INFO running `"docker" "rm" "-f" "84a42be7bb5297edbbfd737270c8769204300e810aeff82c9b13676e77860dde"`
Sep 17 15:46:49.694 INFO blam! 84a42be7bb5297edbbfd737270c8769204300e810aeff82c9b13676e77860dde