Aug 01 22:05:46.469 INFO checking skiplist-0.2.10 against 1.27.2 for lazy_static-1
Aug 01 22:05:46.469 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:05:46.469 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:05:46.469 INFO running `"docker" "create" "-v" "/tmp/crater.3R6br6O4RX0v:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 22:05:46.771 INFO blam! 6eae3a103d4288c7826481fc5cfe9c8628f41b3503a507dcd4faf6cc1c032f9d
Aug 01 22:05:46.771 INFO running `"docker" "start" "-a" "6eae3a103d4288c7826481fc5cfe9c8628f41b3503a507dcd4faf6cc1c032f9d"`
Aug 01 22:05:47.883 INFO kablam!     Checking skiplist v0.2.10 (file:///source)
Aug 01 22:05:49.035 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:05:49.035 INFO kablam!   --> src/lib.rs:27:19
Aug 01 22:05:49.035 INFO kablam!    |
Aug 01 22:05:49.036 INFO kablam! 27 | #![cfg_attr(test, feature(test, collections_bound))]
Aug 01 22:05:49.036 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 22:05:49.036 INFO kablam! 
Aug 01 22:05:49.086 INFO kablam! error: aborting due to previous error
Aug 01 22:05:49.086 INFO kablam! 
Aug 01 22:05:49.086 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:05:49.103 INFO kablam! error: Could not compile `skiplist`.
Aug 01 22:05:49.103 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 22:05:50.946 INFO kablam! error: build failed
Aug 01 22:05:50.949 INFO kablam! su: No module specific data is present
Aug 01 22:05:51.525 INFO running `"docker" "rm" "-f" "6eae3a103d4288c7826481fc5cfe9c8628f41b3503a507dcd4faf6cc1c032f9d"`
Aug 01 22:05:51.679 INFO blam! 6eae3a103d4288c7826481fc5cfe9c8628f41b3503a507dcd4faf6cc1c032f9d