Aug 02 09:22:47.732 INFO checking gen-iter-0.1.2 against 1.27.2 for lazy_static-1
Aug 02 09:22:47.732 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:22:47.732 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:22:47.733 INFO running `"docker" "create" "-v" "/tmp/crater.IXuYMfrUCG0o:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 09:22:47.983 INFO blam! 0ec4f5cb3298191d719ece46f36ce2ebb8039844bbe5c17a5643ead3f14615cb
Aug 02 09:22:47.985 INFO running `"docker" "start" "-a" "0ec4f5cb3298191d719ece46f36ce2ebb8039844bbe5c17a5643ead3f14615cb"`
Aug 02 09:22:48.885 INFO kablam!     Checking gen-iter v0.1.2 (file:///source)
Aug 02 09:22:49.479 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:22:49.479 INFO kablam!   --> src/lib.rs:37:1
Aug 02 09:22:49.479 INFO kablam!    |
Aug 02 09:22:49.479 INFO kablam! 37 | #![feature(generators, generator_trait)]
Aug 02 09:22:49.479 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 09:22:49.485 INFO kablam! 
Aug 02 09:22:49.486 INFO kablam! error: aborting due to previous error
Aug 02 09:22:49.486 INFO kablam! 
Aug 02 09:22:49.487 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:22:49.497 INFO kablam! error: Could not compile `gen-iter`.
Aug 02 09:22:49.497 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 09:22:49.779 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:22:49.779 INFO kablam!   --> src/lib.rs:37:1
Aug 02 09:22:49.779 INFO kablam!    |
Aug 02 09:22:49.779 INFO kablam! 37 | #![feature(generators, generator_trait)]
Aug 02 09:22:49.779 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 09:22:49.780 INFO kablam! 
Aug 02 09:22:49.781 INFO kablam! error: aborting due to previous error
Aug 02 09:22:49.781 INFO kablam! 
Aug 02 09:22:49.782 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:22:49.790 INFO kablam! error: Could not compile `gen-iter`.
Aug 02 09:22:49.790 INFO kablam! 
Aug 02 09:22:49.790 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 09:22:49.792 INFO kablam! su: No module specific data is present
Aug 02 09:22:50.392 INFO running `"docker" "rm" "-f" "0ec4f5cb3298191d719ece46f36ce2ebb8039844bbe5c17a5643ead3f14615cb"`
Aug 02 09:22:50.498 INFO blam! 0ec4f5cb3298191d719ece46f36ce2ebb8039844bbe5c17a5643ead3f14615cb