Aug 02 14:04:56.693 INFO checking bitboard-0.1.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 14:04:56.693 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:04:56.693 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:04:56.693 INFO running `"docker" "create" "-v" "/tmp/crater.TdgB5AdKApFm:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+tmplazy:/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 14:04:57.026 INFO blam! d6f6efce436232194b97cf7ea5a30cf47108a18aaf0b84a6f550b527e41b5b50
Aug 02 14:04:57.029 INFO running `"docker" "start" "-a" "d6f6efce436232194b97cf7ea5a30cf47108a18aaf0b84a6f550b527e41b5b50"`
Aug 02 14:04:58.676 INFO kablam! warning: file found to be present in multiple build targets: /source/tests/nqueens.rs
Aug 02 14:04:58.737 INFO kablam!     Checking bitboard v0.1.1 (file:///source)
Aug 02 14:04:59.603 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:04:59.603 INFO kablam!  --> src/lib.rs:1:1
Aug 02 14:04:59.603 INFO kablam!   |
Aug 02 14:04:59.603 INFO kablam! 1 | #![feature(unique, alloc, heap_api, allocator_api, test)]
Aug 02 14:04:59.603 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:04:59.603 INFO kablam! 
Aug 02 14:04:59.605 INFO kablam! error: aborting due to previous error
Aug 02 14:04:59.608 INFO kablam! 
Aug 02 14:04:59.609 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:04:59.616 INFO kablam! error: Could not compile `bitboard`.
Aug 02 14:04:59.617 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:04:59.991 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:04:59.991 INFO kablam!  --> src/lib.rs:1:1
Aug 02 14:04:59.991 INFO kablam!   |
Aug 02 14:04:59.991 INFO kablam! 1 | #![feature(unique, alloc, heap_api, allocator_api, test)]
Aug 02 14:04:59.991 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:04:59.991 INFO kablam! 
Aug 02 14:05:00.001 INFO kablam! error: aborting due to previous error
Aug 02 14:05:00.001 INFO kablam! 
Aug 02 14:05:00.001 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:05:00.014 INFO kablam! error: Could not compile `bitboard`.
Aug 02 14:05:00.014 INFO kablam! 
Aug 02 14:05:00.014 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 14:05:00.014 INFO kablam! su: No module specific data is present
Aug 02 14:05:00.570 INFO running `"docker" "rm" "-f" "d6f6efce436232194b97cf7ea5a30cf47108a18aaf0b84a6f550b527e41b5b50"`
Aug 02 14:05:00.782 INFO blam! d6f6efce436232194b97cf7ea5a30cf47108a18aaf0b84a6f550b527e41b5b50