Aug 02 14:31:50.905 INFO checking authz-0.1.5 against 1.27.2 for lazy_static-1
Aug 02 14:31:50.905 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:31:50.905 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:31:50.905 INFO running `"docker" "create" "-v" "/tmp/crater.7tAn0Ser3hL3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 14:31:51.275 INFO blam! dd68153d6727c242e6923d83fb7f7d6fe053a07dba6ed13e916d6e7e08af4453
Aug 02 14:31:51.277 INFO running `"docker" "start" "-a" "dd68153d6727c242e6923d83fb7f7d6fe053a07dba6ed13e916d6e7e08af4453"`
Aug 02 14:31:52.628 INFO kablam!     Checking authz v0.1.5 (file:///source)
Aug 02 14:31:55.108 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:31:55.108 INFO kablam!  --> benches/benchmarks.rs:1:1
Aug 02 14:31:55.108 INFO kablam!   |
Aug 02 14:31:55.108 INFO kablam! 1 | #![feature(test)]
Aug 02 14:31:55.108 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:31:55.108 INFO kablam! 
Aug 02 14:31:55.108 INFO kablam! error: aborting due to previous error
Aug 02 14:31:55.108 INFO kablam! 
Aug 02 14:31:55.108 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:31:55.120 INFO kablam! error: Could not compile `authz`.
Aug 02 14:31:55.120 INFO kablam! 
Aug 02 14:31:55.120 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 14:31:55.120 INFO kablam! su: No module specific data is present
Aug 02 14:31:56.126 INFO running `"docker" "rm" "-f" "dd68153d6727c242e6923d83fb7f7d6fe053a07dba6ed13e916d6e7e08af4453"`
Aug 02 14:31:56.293 INFO blam! dd68153d6727c242e6923d83fb7f7d6fe053a07dba6ed13e916d6e7e08af4453