Aug 01 20:03:15.933 INFO checking trie-0.2.0 against 1.27.2 for lazy_static-1
Aug 01 20:03:15.933 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:03:15.933 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:03:15.933 INFO running `"docker" "create" "-v" "/tmp/crater.RBLjSoMp50PN:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 20:03:16.192 INFO blam! 404a543ae0710b05e9ad75a143ff84809e36775e325b96046ac980e79335e1d5
Aug 01 20:03:16.193 INFO running `"docker" "start" "-a" "404a543ae0710b05e9ad75a143ff84809e36775e325b96046ac980e79335e1d5"`
Aug 01 20:03:17.117 INFO kablam!     Checking bit-set v0.5.0
Aug 01 20:03:17.990 INFO kablam!     Checking ordered_iter v0.1.1
Aug 01 20:03:18.610 INFO kablam!     Checking trie v0.2.0 (file:///source)
Aug 01 20:03:19.253 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:03:19.253 INFO kablam!   --> src/lib.rs:13:19
Aug 01 20:03:19.253 INFO kablam!    |
Aug 01 20:03:19.253 INFO kablam! 13 | #![cfg_attr(test, feature(fn_traits, step_by, test, unboxed_closures))]
Aug 01 20:03:19.253 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:03:19.253 INFO kablam! 
Aug 01 20:03:19.267 INFO kablam! error: aborting due to previous error
Aug 01 20:03:19.267 INFO kablam! 
Aug 01 20:03:19.268 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:03:19.278 INFO kablam! error: Could not compile `trie`.
Aug 01 20:03:19.280 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:03:19.778 INFO kablam! error: build failed
Aug 01 20:03:19.779 INFO kablam! su: No module specific data is present
Aug 01 20:03:20.267 INFO running `"docker" "rm" "-f" "404a543ae0710b05e9ad75a143ff84809e36775e325b96046ac980e79335e1d5"`
Aug 01 20:03:20.382 INFO blam! 404a543ae0710b05e9ad75a143ff84809e36775e325b96046ac980e79335e1d5