Aug 02 06:36:23.019 INFO checking ion-0.8.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 06:36:23.019 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:36:23.019 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:36:23.019 INFO running `"docker" "create" "-v" "/tmp/crater.XYmRFL0Gj98j:/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 02 06:36:23.202 INFO blam! 473a724046c67cf5a6f07735aec121a87a62f8801420e566e3be7cef1f3ab82c
Aug 02 06:36:23.204 INFO running `"docker" "start" "-a" "473a724046c67cf5a6f07735aec121a87a62f8801420e566e3be7cef1f3ab82c"`
Aug 02 06:36:24.464 INFO kablam!     Checking ion v0.8.1 (file:///source)
Aug 02 06:36:24.860 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:36:24.860 INFO kablam!  --> src/lib.rs:1:1
Aug 02 06:36:24.860 INFO kablam!   |
Aug 02 06:36:24.860 INFO kablam! 1 | #![feature(slice_patterns)]
Aug 02 06:36:24.860 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:36:24.860 INFO kablam! 
Aug 02 06:36:24.862 INFO kablam! error: aborting due to previous error
Aug 02 06:36:24.862 INFO kablam! 
Aug 02 06:36:24.862 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:36:24.867 INFO kablam! error: Could not compile `ion`.
Aug 02 06:36:24.867 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 06:36:24.954 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:36:24.954 INFO kablam!  --> src/lib.rs:1:1
Aug 02 06:36:24.954 INFO kablam!   |
Aug 02 06:36:24.954 INFO kablam! 1 | #![feature(slice_patterns)]
Aug 02 06:36:24.954 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:36:24.954 INFO kablam! 
Aug 02 06:36:24.960 INFO kablam! error: aborting due to previous error
Aug 02 06:36:24.960 INFO kablam! 
Aug 02 06:36:24.960 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:36:24.968 INFO kablam! error: Could not compile `ion`.
Aug 02 06:36:24.968 INFO kablam! 
Aug 02 06:36:24.968 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 06:36:24.970 INFO kablam! su: No module specific data is present
Aug 02 06:36:25.692 INFO running `"docker" "rm" "-f" "473a724046c67cf5a6f07735aec121a87a62f8801420e566e3be7cef1f3ab82c"`
Aug 02 06:36:25.874 INFO blam! 473a724046c67cf5a6f07735aec121a87a62f8801420e566e3be7cef1f3ab82c