Aug 02 03:58:34.836 INFO checking murmur3-0.3.0 against 1.27.2 for lazy_static-1
Aug 02 03:58:34.836 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:58:34.836 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:58:34.836 INFO running `"docker" "create" "-v" "/tmp/crater.5iN5UzKQWZn8:/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 03:58:35.064 INFO blam! 1268f09850ff1217cbf5868b2b6f5e14038ba32023e1e11d496205e6f9c0b5f3
Aug 02 03:58:35.070 INFO running `"docker" "start" "-a" "1268f09850ff1217cbf5868b2b6f5e14038ba32023e1e11d496205e6f9c0b5f3"`
Aug 02 03:58:36.820 INFO kablam!     Checking murmur3 v0.3.0 (file:///source)
Aug 02 03:58:37.797 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:58:37.797 INFO kablam!  --> benches/bench.rs:2:1
Aug 02 03:58:37.797 INFO kablam!   |
Aug 02 03:58:37.797 INFO kablam! 2 | #![feature(test)]
Aug 02 03:58:37.797 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 03:58:37.797 INFO kablam! 
Aug 02 03:58:37.798 INFO kablam! error: aborting due to previous error
Aug 02 03:58:37.798 INFO kablam! 
Aug 02 03:58:37.798 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 03:58:37.805 INFO kablam! error: Could not compile `murmur3`.
Aug 02 03:58:37.805 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 03:58:38.022 INFO kablam! error: build failed
Aug 02 03:58:38.023 INFO kablam! su: No module specific data is present
Aug 02 03:58:39.109 INFO running `"docker" "rm" "-f" "1268f09850ff1217cbf5868b2b6f5e14038ba32023e1e11d496205e6f9c0b5f3"`
Aug 02 03:58:39.194 INFO blam! 1268f09850ff1217cbf5868b2b6f5e14038ba32023e1e11d496205e6f9c0b5f3