Aug 02 07:22:07.012 INFO checking hc128-0.1.6 against 1.27.2 for lazy_static-1
Aug 02 07:22:07.012 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:22:07.012 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:22:07.012 INFO running `"docker" "create" "-v" "/tmp/crater.xI3C6ASnLkmD:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 07:22:07.394 INFO blam! 65bd8448a07ec55d5829ededecdf764a455843c03384799f4f9d9ab3681c9dc8
Aug 02 07:22:07.396 INFO running `"docker" "start" "-a" "65bd8448a07ec55d5829ededecdf764a455843c03384799f4f9d9ab3681c9dc8"`
Aug 02 07:22:08.482 INFO kablam!     Checking hc128 v0.1.6 (file:///source)
Aug 02 07:22:10.003 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:22:10.003 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 07:22:10.003 INFO kablam!   |
Aug 02 07:22:10.003 INFO kablam! 1 | #![feature(test)]
Aug 02 07:22:10.003 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 07:22:10.003 INFO kablam! 
Aug 02 07:22:10.004 INFO kablam! error: aborting due to previous error
Aug 02 07:22:10.004 INFO kablam! 
Aug 02 07:22:10.004 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:22:10.012 INFO kablam! error: Could not compile `hc128`.
Aug 02 07:22:10.012 INFO kablam! 
Aug 02 07:22:10.012 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 07:22:10.013 INFO kablam! su: No module specific data is present
Aug 02 07:22:10.639 INFO running `"docker" "rm" "-f" "65bd8448a07ec55d5829ededecdf764a455843c03384799f4f9d9ab3681c9dc8"`
Aug 02 07:22:10.861 INFO blam! 65bd8448a07ec55d5829ededecdf764a455843c03384799f4f9d9ab3681c9dc8