Aug 02 04:01:08.649 INFO checking mtl-0.1.5 against 1.27.2 for lazy_static-1
Aug 02 04:01:08.649 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:01:08.649 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:01:08.649 INFO running `"docker" "create" "-v" "/tmp/crater.ZjufKlJo4IYy:/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 04:01:08.879 INFO blam! 5fc3a73a24435c26267ee65a5a652cda3f94c06e18b89b46e6c090a991af61c1
Aug 02 04:01:08.881 INFO running `"docker" "start" "-a" "5fc3a73a24435c26267ee65a5a652cda3f94c06e18b89b46e6c090a991af61c1"`
Aug 02 04:01:09.840 INFO kablam!     Checking mtl v0.1.5 (file:///source)
Aug 02 04:01:11.366 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:01:11.366 INFO kablam!  --> src/lib.rs:1:1
Aug 02 04:01:11.366 INFO kablam!   |
Aug 02 04:01:11.366 INFO kablam! 1 | #![feature(unboxed_closures, fixed_size_array)]
Aug 02 04:01:11.366 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:01:11.367 INFO kablam! 
Aug 02 04:01:11.375 INFO kablam! error: aborting due to previous error
Aug 02 04:01:11.375 INFO kablam! 
Aug 02 04:01:11.375 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:01:11.392 INFO kablam! error: Could not compile `mtl`.
Aug 02 04:01:11.392 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:01:11.528 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:01:11.528 INFO kablam!  --> src/lib.rs:1:1
Aug 02 04:01:11.528 INFO kablam!   |
Aug 02 04:01:11.528 INFO kablam! 1 | #![feature(unboxed_closures, fixed_size_array)]
Aug 02 04:01:11.529 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:01:11.529 INFO kablam! 
Aug 02 04:01:11.539 INFO kablam! error: aborting due to previous error
Aug 02 04:01:11.539 INFO kablam! 
Aug 02 04:01:11.539 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:01:11.555 INFO kablam! error: Could not compile `mtl`.
Aug 02 04:01:11.555 INFO kablam! 
Aug 02 04:01:11.555 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 04:01:11.557 INFO kablam! su: No module specific data is present
Aug 02 04:01:12.402 INFO running `"docker" "rm" "-f" "5fc3a73a24435c26267ee65a5a652cda3f94c06e18b89b46e6c090a991af61c1"`
Aug 02 04:01:12.547 INFO blam! 5fc3a73a24435c26267ee65a5a652cda3f94c06e18b89b46e6c090a991af61c1