Sep 19 18:42:41.629 INFO checking trie-0.2.0 against master#1e21c9a297a9fe668d62887a3a6a4add8e717b17 for pr-54352
Sep 19 18:42:41.629 INFO running: cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets
Sep 19 18:42:41.629 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54352/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-3/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/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 +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 18:42:41.880 INFO blam! 4837139c9d6fbd6167e7711ef1a716267f7a159364a6cebda41ef4f656f22732
Sep 19 18:42:41.882 INFO running `"docker" "start" "-a" "4837139c9d6fbd6167e7711ef1a716267f7a159364a6cebda41ef4f656f22732"`
Sep 19 18:42:43.438 INFO kablam! usermod: no changes
Sep 19 18:42:43.538 INFO kablam!     Checking bit-set v0.5.0
Sep 19 18:42:44.291 INFO kablam!     Checking ordered_iter v0.1.1
Sep 19 18:42:44.784 INFO kablam!     Checking trie v0.2.0 (/source)
Sep 19 18:42:46.454 INFO kablam! error[E0635]: unknown feature `step_by`
Sep 19 18:42:46.454 INFO kablam!   --> src/lib.rs:13:38
Sep 19 18:42:46.454 INFO kablam!    |
Sep 19 18:42:46.454 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Sep 19 18:42:46.454 INFO kablam!    |                                      ^^^^^^^
Sep 19 18:42:46.454 INFO kablam! 
Sep 19 18:42:46.504 INFO kablam! error: aborting due to previous error
Sep 19 18:42:46.504 INFO kablam! 
Sep 19 18:42:46.504 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 19 18:42:46.513 INFO kablam! error: Could not compile `trie`.
Sep 19 18:42:46.514 INFO kablam! 
Sep 19 18:42:46.514 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 18:42:46.515 INFO kablam! su: No module specific data is present
Sep 19 18:42:47.268 INFO running `"docker" "rm" "-f" "4837139c9d6fbd6167e7711ef1a716267f7a159364a6cebda41ef4f656f22732"`
Sep 19 18:42:47.377 INFO blam! 4837139c9d6fbd6167e7711ef1a716267f7a159364a6cebda41ef4f656f22732