Aug 02 12:23:14.591 INFO checking coroutine-0.8.0 against 1.27.2 for lazy_static-1
Aug 02 12:23:14.591 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:23:14.591 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:23:14.591 INFO running `"docker" "create" "-v" "/tmp/crater.mBxAh8JJhL4k:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 12:23:14.946 INFO blam! b42f00c549045aba4d0feb2cf8781074810918d4674cbdb37395343e487ad6ba
Aug 02 12:23:14.948 INFO running `"docker" "start" "-a" "b42f00c549045aba4d0feb2cf8781074810918d4674cbdb37395343e487ad6ba"`
Aug 02 12:23:15.921 INFO kablam!     Checking coroutine v0.8.0 (file:///source)
Aug 02 12:23:16.594 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:23:16.594 INFO kablam!   --> src/lib.rs:25:1
Aug 02 12:23:16.594 INFO kablam!    |
Aug 02 12:23:16.594 INFO kablam! 25 | #![feature(fnbox)]
Aug 02 12:23:16.594 INFO kablam!    | ^^^^^^^^^^^^^^^^^^
Aug 02 12:23:16.594 INFO kablam! 
Aug 02 12:23:16.595 INFO kablam! error: aborting due to previous error
Aug 02 12:23:16.595 INFO kablam! 
Aug 02 12:23:16.595 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:23:16.602 INFO kablam! error: Could not compile `coroutine`.
Aug 02 12:23:16.602 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 12:23:16.772 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:23:16.773 INFO kablam!   --> src/lib.rs:25:1
Aug 02 12:23:16.773 INFO kablam!    |
Aug 02 12:23:16.773 INFO kablam! 25 | #![feature(fnbox)]
Aug 02 12:23:16.773 INFO kablam!    | ^^^^^^^^^^^^^^^^^^
Aug 02 12:23:16.773 INFO kablam! 
Aug 02 12:23:16.774 INFO kablam! error: aborting due to previous error
Aug 02 12:23:16.774 INFO kablam! 
Aug 02 12:23:16.774 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:23:16.785 INFO kablam! error: Could not compile `coroutine`.
Aug 02 12:23:16.785 INFO kablam! 
Aug 02 12:23:16.785 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 12:23:16.787 INFO kablam! su: No module specific data is present
Aug 02 12:23:17.404 INFO running `"docker" "rm" "-f" "b42f00c549045aba4d0feb2cf8781074810918d4674cbdb37395343e487ad6ba"`
Aug 02 12:23:17.567 INFO blam! b42f00c549045aba4d0feb2cf8781074810918d4674cbdb37395343e487ad6ba