Aug 02 03:48:07.776 INFO checking nbchan-0.1.3 against 1.27.2+tmplazy for lazy_static-1
Aug 02 03:48:07.776 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:48:07.776 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:48:07.776 INFO running `"docker" "create" "-v" "/tmp/crater.3FXtSTWxgLZo:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+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 03:48:08.004 INFO blam! 8e3adfa8f9e1f1b0ea4b63fe7cf921929d4bbe6c05bff03c45dc178d0ce5454a
Aug 02 03:48:08.006 INFO running `"docker" "start" "-a" "8e3adfa8f9e1f1b0ea4b63fe7cf921929d4bbe6c05bff03c45dc178d0ce5454a"`
Aug 02 03:48:09.108 INFO kablam!     Checking nbchan v0.1.3 (file:///source)
Aug 02 03:48:10.790 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:48:10.790 INFO kablam!  --> benches/lib.rs:2:1
Aug 02 03:48:10.790 INFO kablam!   |
Aug 02 03:48:10.790 INFO kablam! 2 | #![feature(test)]
Aug 02 03:48:10.791 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 03:48:10.791 INFO kablam! 
Aug 02 03:48:10.791 INFO kablam! error: aborting due to previous error
Aug 02 03:48:10.791 INFO kablam! 
Aug 02 03:48:10.792 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 03:48:10.800 INFO kablam! error: Could not compile `nbchan`.
Aug 02 03:48:10.801 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 03:48:11.222 INFO kablam! error: build failed
Aug 02 03:48:11.224 INFO kablam! su: No module specific data is present
Aug 02 03:48:11.714 INFO running `"docker" "rm" "-f" "8e3adfa8f9e1f1b0ea4b63fe7cf921929d4bbe6c05bff03c45dc178d0ce5454a"`
Aug 02 03:48:11.888 INFO blam! 8e3adfa8f9e1f1b0ea4b63fe7cf921929d4bbe6c05bff03c45dc178d0ce5454a