Aug 02 14:01:33.649 INFO checking bitsparrow-2.0.0-rc4 against 1.27.2 for lazy_static-1
Aug 02 14:01:33.649 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:01:33.649 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:01:33.650 INFO running `"docker" "create" "-v" "/tmp/crater.ddbcRulZgjdn:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 14:01:33.883 INFO blam! 2897a9d5021ad7a34095956e6ff2c9d7b623e456d6ba49f503d55d1d2d38226b
Aug 02 14:01:33.885 INFO running `"docker" "start" "-a" "2897a9d5021ad7a34095956e6ff2c9d7b623e456d6ba49f503d55d1d2d38226b"`
Aug 02 14:01:34.881 INFO kablam!     Checking bitsparrow v2.0.0-rc4 (file:///source)
Aug 02 14:01:41.279 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:01:41.279 INFO kablam!  --> benches/lib.rs:1:1
Aug 02 14:01:41.279 INFO kablam!   |
Aug 02 14:01:41.279 INFO kablam! 1 | #![feature(test)]
Aug 02 14:01:41.279 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:01:41.279 INFO kablam! 
Aug 02 14:01:41.279 INFO kablam! error: aborting due to previous error
Aug 02 14:01:41.279 INFO kablam! 
Aug 02 14:01:41.279 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:01:41.287 INFO kablam! error: Could not compile `bitsparrow`.
Aug 02 14:01:41.288 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:01:42.794 INFO kablam! error: build failed
Aug 02 14:01:42.796 INFO kablam! su: No module specific data is present
Aug 02 14:01:43.826 INFO running `"docker" "rm" "-f" "2897a9d5021ad7a34095956e6ff2c9d7b623e456d6ba49f503d55d1d2d38226b"`
Aug 02 14:01:44.047 INFO blam! 2897a9d5021ad7a34095956e6ff2c9d7b623e456d6ba49f503d55d1d2d38226b