Aug 02 05:03:32.427 INFO checking lock-free-multi-producer-single-consumer-ring-buffer-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 05:03:32.427 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:03:32.427 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:03:32.427 INFO running `"docker" "create" "-v" "/tmp/crater.hqI3wkmxIYRA:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+tmplazy:/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 05:03:32.592 INFO blam! 274f4be281c1355e9a715193c3ec0aa022d57b28eb23f828adf83ed6f3d3b7ab
Aug 02 05:03:32.594 INFO running `"docker" "start" "-a" "274f4be281c1355e9a715193c3ec0aa022d57b28eb23f828adf83ed6f3d3b7ab"`
Aug 02 05:03:34.154 INFO kablam!     Checking lock-free-multi-producer-single-consumer-ring-buffer v0.1.0 (file:///source)
Aug 02 05:03:34.508 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:03:34.508 INFO kablam!  --> src/lib.rs:7:1
Aug 02 05:03:34.508 INFO kablam!   |
Aug 02 05:03:34.508 INFO kablam! 7 | #![feature(allocator_api, core_intrinsics)]
Aug 02 05:03:34.508 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:03:34.508 INFO kablam! 
Aug 02 05:03:34.511 INFO kablam! error: aborting due to previous error
Aug 02 05:03:34.511 INFO kablam! 
Aug 02 05:03:34.511 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:03:34.519 INFO kablam! error: Could not compile `lock-free-multi-producer-single-consumer-ring-buffer`.
Aug 02 05:03:34.519 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:03:34.567 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:03:34.567 INFO kablam!  --> src/lib.rs:7:1
Aug 02 05:03:34.567 INFO kablam!   |
Aug 02 05:03:34.567 INFO kablam! 7 | #![feature(allocator_api, core_intrinsics)]
Aug 02 05:03:34.567 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:03:34.567 INFO kablam! 
Aug 02 05:03:34.570 INFO kablam! error: aborting due to previous error
Aug 02 05:03:34.570 INFO kablam! 
Aug 02 05:03:34.570 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:03:34.579 INFO kablam! error: Could not compile `lock-free-multi-producer-single-consumer-ring-buffer`.
Aug 02 05:03:34.579 INFO kablam! 
Aug 02 05:03:34.579 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 05:03:34.579 INFO kablam! su: No module specific data is present
Aug 02 05:03:35.202 INFO running `"docker" "rm" "-f" "274f4be281c1355e9a715193c3ec0aa022d57b28eb23f828adf83ed6f3d3b7ab"`
Aug 02 05:03:35.317 INFO blam! 274f4be281c1355e9a715193c3ec0aa022d57b28eb23f828adf83ed6f3d3b7ab