Aug 02 13:50:51.591 INFO checking bounded-spsc-queue-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 13:50:51.591 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:50:51.591 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:50:51.591 INFO running `"docker" "create" "-v" "/tmp/crater.gen6VnR09eZA:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 13:50:51.830 INFO blam! 2a07b6f41739f7fd8be7b49a73585d7796c5891d6ce5e22036e896535b403728
Aug 02 13:50:51.832 INFO running `"docker" "start" "-a" "2a07b6f41739f7fd8be7b49a73585d7796c5891d6ce5e22036e896535b403728"`
Aug 02 13:50:53.668 INFO kablam!     Checking bounded-spsc-queue v0.2.0 (file:///source)
Aug 02 13:50:54.157 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:50:54.157 INFO kablam!  --> src/lib.rs:1:1
Aug 02 13:50:54.157 INFO kablam!   |
Aug 02 13:50:54.157 INFO kablam! 1 | #![feature(allocator_api, alloc, box_syntax, optin_builtin_traits)]
Aug 02 13:50:54.157 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:50:54.157 INFO kablam! 
Aug 02 13:50:54.158 INFO kablam! error: aborting due to previous error
Aug 02 13:50:54.158 INFO kablam! 
Aug 02 13:50:54.158 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:50:54.163 INFO kablam! error: Could not compile `bounded-spsc-queue`.
Aug 02 13:50:54.163 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:50:54.285 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:50:54.285 INFO kablam!  --> src/lib.rs:1:1
Aug 02 13:50:54.285 INFO kablam!   |
Aug 02 13:50:54.285 INFO kablam! 1 | #![feature(allocator_api, alloc, box_syntax, optin_builtin_traits)]
Aug 02 13:50:54.285 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:50:54.285 INFO kablam! 
Aug 02 13:50:54.288 INFO kablam! error: aborting due to previous error
Aug 02 13:50:54.288 INFO kablam! 
Aug 02 13:50:54.288 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:50:54.296 INFO kablam! error: Could not compile `bounded-spsc-queue`.
Aug 02 13:50:54.296 INFO kablam! 
Aug 02 13:50:54.296 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 13:50:54.297 INFO kablam! su: No module specific data is present
Aug 02 13:50:55.059 INFO running `"docker" "rm" "-f" "2a07b6f41739f7fd8be7b49a73585d7796c5891d6ce5e22036e896535b403728"`
Aug 02 13:50:55.222 INFO blam! 2a07b6f41739f7fd8be7b49a73585d7796c5891d6ce5e22036e896535b403728