Aug 02 07:12:39.782 INFO checking hotswap-runtime-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 07:12:39.782 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:12:39.782 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:12:39.782 INFO running `"docker" "create" "-v" "/tmp/crater.AjyxuWoUYWIX:/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 07:12:39.978 INFO blam! 9ffbca4519380b0160da5784b97e4706a572c722612b3aa55d71f8b1be801133
Aug 02 07:12:39.980 INFO running `"docker" "start" "-a" "9ffbca4519380b0160da5784b97e4706a572c722612b3aa55d71f8b1be801133"`
Aug 02 07:12:41.556 INFO kablam!     Checking parking_lot_core v0.2.14
Aug 02 07:12:42.009 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:12:42.009 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/parking_lot_core-0.2.14/src/lib.rs:41:60
Aug 02 07:12:42.009 INFO kablam!    |
Aug 02 07:12:42.009 INFO kablam! 41 | #![cfg_attr(all(feature = "nightly", target_os = "linux"), feature(integer_atomics))]
Aug 02 07:12:42.009 INFO kablam!    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 07:12:42.009 INFO kablam! 
Aug 02 07:12:42.011 INFO kablam! error: aborting due to previous error
Aug 02 07:12:42.011 INFO kablam! 
Aug 02 07:12:42.011 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:12:42.017 INFO kablam! error: Could not compile `parking_lot_core`.
Aug 02 07:12:42.017 INFO kablam! 
Aug 02 07:12:42.017 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 07:12:42.019 INFO kablam! su: No module specific data is present
Aug 02 07:12:42.609 INFO running `"docker" "rm" "-f" "9ffbca4519380b0160da5784b97e4706a572c722612b3aa55d71f8b1be801133"`
Aug 02 07:12:42.789 INFO blam! 9ffbca4519380b0160da5784b97e4706a572c722612b3aa55d71f8b1be801133