Aug 01 16:37:49.806 INFO checking gterzian/workflow_executor against 1.27.2 for lazy_static-1
Aug 01 16:37:49.806 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 16:37:49.806 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 16:37:49.806 INFO running `"docker" "create" "-v" "/tmp/crater.bdcstMlR7OJg:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 16:37:50.038 INFO blam! 52c0af2e8aea90e02eda978bee142a1b0c077f3c225fc65516d33fd22a32682c
Aug 01 16:37:50.040 INFO running `"docker" "start" "-a" "52c0af2e8aea90e02eda978bee142a1b0c077f3c225fc65516d33fd22a32682c"`
Aug 01 16:37:51.106 INFO kablam!     Checking workflow v0.1.0 (file:///source)
Aug 01 16:37:51.602 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 16:37:51.602 INFO kablam!  --> src/main.rs:1:1
Aug 01 16:37:51.602 INFO kablam!   |
Aug 01 16:37:51.602 INFO kablam! 1 | #![feature(mpsc_select)]
Aug 01 16:37:51.602 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 16:37:51.602 INFO kablam! 
Aug 01 16:37:51.603 INFO kablam! error: aborting due to previous error
Aug 01 16:37:51.603 INFO kablam! 
Aug 01 16:37:51.603 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 16:37:51.610 INFO kablam! error: Could not compile `workflow`.
Aug 01 16:37:51.610 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 16:37:51.648 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 16:37:51.648 INFO kablam!  --> src/main.rs:1:1
Aug 01 16:37:51.648 INFO kablam!   |
Aug 01 16:37:51.648 INFO kablam! 1 | #![feature(mpsc_select)]
Aug 01 16:37:51.648 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 16:37:51.648 INFO kablam! 
Aug 01 16:37:51.648 INFO kablam! error: aborting due to previous error
Aug 01 16:37:51.649 INFO kablam! 
Aug 01 16:37:51.649 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 16:37:51.656 INFO kablam! error: Could not compile `workflow`.
Aug 01 16:37:51.656 INFO kablam! 
Aug 01 16:37:51.656 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 16:37:51.658 INFO kablam! su: No module specific data is present
Aug 01 16:37:52.247 INFO running `"docker" "rm" "-f" "52c0af2e8aea90e02eda978bee142a1b0c077f3c225fc65516d33fd22a32682c"`
Aug 01 16:37:52.439 INFO blam! 52c0af2e8aea90e02eda978bee142a1b0c077f3c225fc65516d33fd22a32682c