Aug 02 13:45:50.331 INFO checking buf-0.1.1 against 1.27.2 for lazy_static-1
Aug 02 13:45:50.331 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:45:50.331 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:45:50.331 INFO running `"docker" "create" "-v" "/tmp/crater.i6Q4rI86s0wn:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 13:45:50.547 INFO blam! 046478156f8f357a6c71255af580ccf0892ae633b7e427bdef7e93e815e69ac3
Aug 02 13:45:50.549 INFO running `"docker" "start" "-a" "046478156f8f357a6c71255af580ccf0892ae633b7e427bdef7e93e815e69ac3"`
Aug 02 13:45:51.907 INFO kablam!    Compiling ptr v0.1.4
Aug 02 13:45:51.909 INFO kablam!    Compiling hash-table v0.2.2
Aug 02 13:45:51.911 INFO kablam!     Checking slot v0.2.4
Aug 02 13:45:51.913 INFO kablam!    Compiling containers v0.8.3
Aug 02 13:45:51.915 INFO kablam!     Checking rel v0.2.0
Aug 02 13:45:51.917 INFO kablam!     Checking heap v0.1.0
Aug 02 13:45:51.917 INFO kablam!    Compiling i-o v0.4.1
Aug 02 13:45:51.917 INFO kablam!    Compiling abort v0.1.1
Aug 02 13:45:52.576 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:45:52.576 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/slot-0.2.4/src/lib.rs:3:1
Aug 02 13:45:52.576 INFO kablam!   |
Aug 02 13:45:52.576 INFO kablam! 3 | #![feature(const_fn)]
Aug 02 13:45:52.576 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:45:52.580 INFO kablam! 
Aug 02 13:45:52.581 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:45:52.581 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/slot-0.2.4/src/lib.rs:4:1
Aug 02 13:45:52.581 INFO kablam!   |
Aug 02 13:45:52.581 INFO kablam! 4 | #![feature(untagged_unions)]
Aug 02 13:45:52.581 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:45:52.581 INFO kablam! 
Aug 02 13:45:52.581 INFO kablam! error: aborting due to 2 previous errors
Aug 02 13:45:52.582 INFO kablam! 
Aug 02 13:45:52.582 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:45:52.604 INFO kablam! error: Could not compile `slot`.
Aug 02 13:45:52.605 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:45:54.528 INFO kablam! error: build failed
Aug 02 13:45:54.529 INFO kablam! su: No module specific data is present
Aug 02 13:45:55.460 INFO running `"docker" "rm" "-f" "046478156f8f357a6c71255af580ccf0892ae633b7e427bdef7e93e815e69ac3"`
Aug 02 13:45:55.570 INFO blam! 046478156f8f357a6c71255af580ccf0892ae633b7e427bdef7e93e815e69ac3