Aug 01 21:46:27.853 INFO checking sortrs-0.0.5 against 1.27.2+tmplazy for lazy_static-1
Aug 01 21:46:27.853 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:46:27.853 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:46:27.853 INFO running `"docker" "create" "-v" "/tmp/crater.lNRSFZT6wYDV:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+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 01 21:46:28.070 INFO blam! 4e374d2f9e1916b6ae208d6296133902cee377f3a14ca207152f32688d29d717
Aug 01 21:46:28.074 INFO running `"docker" "start" "-a" "4e374d2f9e1916b6ae208d6296133902cee377f3a14ca207152f32688d29d717"`
Aug 01 21:46:28.899 INFO kablam!     Checking sortrs v0.0.5 (file:///source)
Aug 01 21:46:29.886 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:46:29.886 INFO kablam!  --> benches/sortrs.rs:1:1
Aug 01 21:46:29.886 INFO kablam!   |
Aug 01 21:46:29.886 INFO kablam! 1 | #![feature(test)]
Aug 01 21:46:29.886 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 21:46:29.886 INFO kablam! 
Aug 01 21:46:29.886 INFO kablam! error: aborting due to previous error
Aug 01 21:46:29.886 INFO kablam! 
Aug 01 21:46:29.886 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:46:29.891 INFO kablam! error: Could not compile `sortrs`.
Aug 01 21:46:29.892 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:46:30.209 INFO kablam! error: build failed
Aug 01 21:46:30.211 INFO kablam! su: No module specific data is present
Aug 01 21:46:30.906 INFO running `"docker" "rm" "-f" "4e374d2f9e1916b6ae208d6296133902cee377f3a14ca207152f32688d29d717"`
Aug 01 21:46:31.022 INFO blam! 4e374d2f9e1916b6ae208d6296133902cee377f3a14ca207152f32688d29d717