Aug 02 05:03:32.952 INFO checking lock-free-multi-producer-single-consumer-ring-buffer-0.1.0 against 1.27.2 for lazy_static-1
Aug 02 05:03:32.952 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:03:32.952 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:03:32.952 INFO running `"docker" "create" "-v" "/tmp/crater.aaHxNJDqq6aX:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 05:03:33.126 INFO blam! 1ec07dc4b43dd60d934127ac1fdd26a456bd0534f38e082d04a673e0dd7e374a
Aug 02 05:03:33.129 INFO running `"docker" "start" "-a" "1ec07dc4b43dd60d934127ac1fdd26a456bd0534f38e082d04a673e0dd7e374a"`
Aug 02 05:03:34.479 INFO kablam!     Checking lock-free-multi-producer-single-consumer-ring-buffer v0.1.0 (file:///source)
Aug 02 05:03:34.797 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:03:34.797 INFO kablam!  --> src/lib.rs:7:1
Aug 02 05:03:34.797 INFO kablam!   |
Aug 02 05:03:34.797 INFO kablam! 7 | #![feature(allocator_api, core_intrinsics)]
Aug 02 05:03:34.797 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:03:34.797 INFO kablam! 
Aug 02 05:03:34.799 INFO kablam! error: aborting due to previous error
Aug 02 05:03:34.799 INFO kablam! 
Aug 02 05:03:34.799 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:03:34.800 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:03:34.800 INFO kablam!  --> src/lib.rs:7:1
Aug 02 05:03:34.800 INFO kablam!   |
Aug 02 05:03:34.800 INFO kablam! 7 | #![feature(allocator_api, core_intrinsics)]
Aug 02 05:03:34.800 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:03:34.800 INFO kablam! 
Aug 02 05:03:34.802 INFO kablam! error: aborting due to previous error
Aug 02 05:03:34.802 INFO kablam! 
Aug 02 05:03:34.802 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:03:34.805 INFO kablam! error: Could not compile `lock-free-multi-producer-single-consumer-ring-buffer`.
Aug 02 05:03:34.805 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:03:34.807 INFO kablam! error: Could not compile `lock-free-multi-producer-single-consumer-ring-buffer`.
Aug 02 05:03:34.807 INFO kablam! 
Aug 02 05:03:34.807 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 05:03:34.808 INFO kablam! su: No module specific data is present
Aug 02 05:03:35.501 INFO running `"docker" "rm" "-f" "1ec07dc4b43dd60d934127ac1fdd26a456bd0534f38e082d04a673e0dd7e374a"`
Aug 02 05:03:35.651 INFO blam! 1ec07dc4b43dd60d934127ac1fdd26a456bd0534f38e082d04a673e0dd7e374a