Aug 02 14:28:42.150 INFO checking avr-mcu-0.2.6 against 1.27.2 for lazy_static-1
Aug 02 14:28:42.151 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:28:42.151 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:28:42.151 INFO running `"docker" "create" "-v" "/tmp/crater.KDFnF9bzUsFf:/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 14:28:42.462 INFO blam! dabb00bdfc8a137e7d9c99ccaa87b371a7ffa1c98fdf3fddbfcdb7bebdf708e7
Aug 02 14:28:42.467 INFO running `"docker" "start" "-a" "dabb00bdfc8a137e7d9c99ccaa87b371a7ffa1c98fdf3fddbfcdb7bebdf708e7"`
Aug 02 14:28:43.553 INFO kablam!     Checking xml-rs v0.4.1
Aug 02 14:28:46.553 INFO kablam!     Checking xmltree v0.4.0
Aug 02 14:28:47.549 INFO kablam!     Checking avr-mcu v0.2.6 (file:///source)
Aug 02 14:28:48.590 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:28:48.590 INFO kablam!   --> src/lib.rs:38:1
Aug 02 14:28:48.590 INFO kablam!    |
Aug 02 14:28:48.590 INFO kablam! 38 | #![feature(conservative_impl_trait)]
Aug 02 14:28:48.590 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:28:48.593 INFO kablam! 
Aug 02 14:28:48.615 INFO kablam! error: aborting due to previous error
Aug 02 14:28:48.618 INFO kablam! 
Aug 02 14:28:48.618 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:28:48.635 INFO kablam! error: Could not compile `avr-mcu`.
Aug 02 14:28:48.635 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:28:48.711 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:28:48.711 INFO kablam!   --> src/lib.rs:38:1
Aug 02 14:28:48.711 INFO kablam!    |
Aug 02 14:28:48.711 INFO kablam! 38 | #![feature(conservative_impl_trait)]
Aug 02 14:28:48.712 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:28:48.716 INFO kablam! 
Aug 02 14:28:48.726 INFO kablam! error: aborting due to previous error
Aug 02 14:28:48.726 INFO kablam! 
Aug 02 14:28:48.727 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:28:48.735 INFO kablam! error: Could not compile `avr-mcu`.
Aug 02 14:28:48.735 INFO kablam! 
Aug 02 14:28:48.735 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 14:28:48.736 INFO kablam! su: No module specific data is present
Aug 02 14:28:49.305 INFO running `"docker" "rm" "-f" "dabb00bdfc8a137e7d9c99ccaa87b371a7ffa1c98fdf3fddbfcdb7bebdf708e7"`
Aug 02 14:28:49.496 INFO blam! dabb00bdfc8a137e7d9c99ccaa87b371a7ffa1c98fdf3fddbfcdb7bebdf708e7