Aug 02 10:58:58.930 INFO checking elastic-array-0.10.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 10:58:58.930 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:58:58.930 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:58:58.930 INFO running `"docker" "create" "-v" "/tmp/crater.GwaRbemQAJiF:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+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 10:58:59.140 INFO blam! e12d631e57c1d89c686c10c6400d0c071baa28dd6e5b880659fd9976b4b1ce53
Aug 02 10:58:59.142 INFO running `"docker" "start" "-a" "e12d631e57c1d89c686c10c6400d0c071baa28dd6e5b880659fd9976b4b1ce53"`
Aug 02 10:59:00.515 INFO kablam!     Checking elastic-array v0.10.0 (file:///source)
Aug 02 10:59:03.234 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:59:03.234 INFO kablam!  --> benches/elastic.rs:6:1
Aug 02 10:59:03.234 INFO kablam!   |
Aug 02 10:59:03.234 INFO kablam! 6 | #![feature(test)]
Aug 02 10:59:03.234 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 10:59:03.234 INFO kablam! 
Aug 02 10:59:03.234 INFO kablam! error: aborting due to previous error
Aug 02 10:59:03.234 INFO kablam! 
Aug 02 10:59:03.234 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:59:03.242 INFO kablam! error: Could not compile `elastic-array`.
Aug 02 10:59:03.242 INFO kablam! 
Aug 02 10:59:03.242 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:59:03.244 INFO kablam! su: No module specific data is present
Aug 02 10:59:03.786 INFO running `"docker" "rm" "-f" "e12d631e57c1d89c686c10c6400d0c071baa28dd6e5b880659fd9976b4b1ce53"`
Aug 02 10:59:03.969 INFO blam! e12d631e57c1d89c686c10c6400d0c071baa28dd6e5b880659fd9976b4b1ce53