Aug 02 10:58:59.175 INFO checking elastic-array-0.10.0 against 1.27.2 for lazy_static-1
Aug 02 10:58:59.175 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:58:59.175 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:58:59.175 INFO running `"docker" "create" "-v" "/tmp/crater.lUpV1ZonbV18:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 10:58:59.345 INFO blam! e618046d147aee7a3072a79a1564d0344f6738acd00ffaa9cdb0b7da6d000952
Aug 02 10:58:59.347 INFO running `"docker" "start" "-a" "e618046d147aee7a3072a79a1564d0344f6738acd00ffaa9cdb0b7da6d000952"`
Aug 02 10:59:00.471 INFO kablam!     Checking elastic-array v0.10.0 (file:///source)
Aug 02 10:59:02.943 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:59:02.943 INFO kablam!  --> benches/elastic.rs:6:1
Aug 02 10:59:02.943 INFO kablam!   |
Aug 02 10:59:02.943 INFO kablam! 6 | #![feature(test)]
Aug 02 10:59:02.943 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 10:59:02.943 INFO kablam! 
Aug 02 10:59:02.943 INFO kablam! error: aborting due to previous error
Aug 02 10:59:02.943 INFO kablam! 
Aug 02 10:59:02.943 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:59:02.950 INFO kablam! error: Could not compile `elastic-array`.
Aug 02 10:59:02.950 INFO kablam! 
Aug 02 10:59:02.951 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:59:02.959 INFO kablam! su: No module specific data is present
Aug 02 10:59:03.695 INFO running `"docker" "rm" "-f" "e618046d147aee7a3072a79a1564d0344f6738acd00ffaa9cdb0b7da6d000952"`
Aug 02 10:59:03.879 INFO blam! e618046d147aee7a3072a79a1564d0344f6738acd00ffaa9cdb0b7da6d000952