Aug 02 14:04:57.713 INFO checking bitboard-0.1.1 against 1.27.2 for lazy_static-1
Aug 02 14:04:57.713 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:04:57.713 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:04:57.713 INFO running `"docker" "create" "-v" "/tmp/crater.gmdla73fcjqr:/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 02 14:04:57.994 INFO blam! 84ddb74313d8793dd679d032740f6bcfe599699195b1b1728f7e7120429040e2
Aug 02 14:04:57.995 INFO running `"docker" "start" "-a" "84ddb74313d8793dd679d032740f6bcfe599699195b1b1728f7e7120429040e2"`
Aug 02 14:04:59.211 INFO kablam! warning: file found to be present in multiple build targets: /source/tests/nqueens.rs
Aug 02 14:04:59.222 INFO kablam!     Checking bitboard v0.1.1 (file:///source)
Aug 02 14:05:00.204 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:05:00.204 INFO kablam!  --> src/lib.rs:1:1
Aug 02 14:05:00.204 INFO kablam!   |
Aug 02 14:05:00.204 INFO kablam! 1 | #![feature(unique, alloc, heap_api, allocator_api, test)]
Aug 02 14:05:00.204 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:05:00.204 INFO kablam! 
Aug 02 14:05:00.214 INFO kablam! error: aborting due to previous error
Aug 02 14:05:00.214 INFO kablam! 
Aug 02 14:05:00.215 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:05:00.224 INFO kablam! error: Could not compile `bitboard`.
Aug 02 14:05:00.225 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:05:00.266 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:05:00.266 INFO kablam!  --> src/lib.rs:1:1
Aug 02 14:05:00.266 INFO kablam!   |
Aug 02 14:05:00.266 INFO kablam! 1 | #![feature(unique, alloc, heap_api, allocator_api, test)]
Aug 02 14:05:00.266 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:05:00.266 INFO kablam! 
Aug 02 14:05:00.268 INFO kablam! error: aborting due to previous error
Aug 02 14:05:00.268 INFO kablam! 
Aug 02 14:05:00.268 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:05:00.277 INFO kablam! error: Could not compile `bitboard`.
Aug 02 14:05:00.277 INFO kablam! 
Aug 02 14:05:00.277 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 14:05:00.279 INFO kablam! su: No module specific data is present
Aug 02 14:05:01.062 INFO running `"docker" "rm" "-f" "84ddb74313d8793dd679d032740f6bcfe599699195b1b1728f7e7120429040e2"`
Aug 02 14:05:01.191 INFO blam! 84ddb74313d8793dd679d032740f6bcfe599699195b1b1728f7e7120429040e2