Aug 01 21:22:40.632 INFO checking stepgen-0.1.2 against 1.27.2 for lazy_static-1
Aug 01 21:22:40.632 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:22:40.632 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:22:40.632 INFO running `"docker" "create" "-v" "/tmp/crater.w3mw4w4Biris:/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 01 21:22:40.898 INFO blam! b20d53b9de299b7037828fd8325d2991e46a004823ef4437d578dbd95b3032d2
Aug 01 21:22:40.901 INFO running `"docker" "start" "-a" "b20d53b9de299b7037828fd8325d2991e46a004823ef4437d578dbd95b3032d2"`
Aug 01 21:22:42.309 INFO kablam!     Checking stepgen v0.1.2 (file:///source)
Aug 01 21:22:42.584 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:22:42.584 INFO kablam!  --> src/lib.rs:2:1
Aug 01 21:22:42.584 INFO kablam!   |
Aug 01 21:22:42.584 INFO kablam! 2 | #![feature(const_fn)]
Aug 01 21:22:42.584 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:22:42.584 INFO kablam! 
Aug 01 21:22:42.585 INFO kablam! error: aborting due to previous error
Aug 01 21:22:42.585 INFO kablam! 
Aug 01 21:22:42.585 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:22:42.597 INFO kablam! error: Could not compile `stepgen`.
Aug 01 21:22:42.597 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:22:42.739 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:22:42.739 INFO kablam!  --> src/lib.rs:2:1
Aug 01 21:22:42.739 INFO kablam!   |
Aug 01 21:22:42.739 INFO kablam! 2 | #![feature(const_fn)]
Aug 01 21:22:42.739 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:22:42.739 INFO kablam! 
Aug 01 21:22:42.741 INFO kablam! error: aborting due to previous error
Aug 01 21:22:42.741 INFO kablam! 
Aug 01 21:22:42.741 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:22:42.749 INFO kablam! error: Could not compile `stepgen`.
Aug 01 21:22:42.749 INFO kablam! 
Aug 01 21:22:42.749 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 21:22:42.751 INFO kablam! su: No module specific data is present
Aug 01 21:22:43.330 INFO running `"docker" "rm" "-f" "b20d53b9de299b7037828fd8325d2991e46a004823ef4437d578dbd95b3032d2"`
Aug 01 21:22:43.488 INFO blam! b20d53b9de299b7037828fd8325d2991e46a004823ef4437d578dbd95b3032d2