Aug 01 21:46:49.213 INFO checking sophon-wasm-0.18.1 against 1.27.2 for lazy_static-1
Aug 01 21:46:49.213 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:46:49.213 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:46:49.213 INFO running `"docker" "create" "-v" "/tmp/crater.L4UjTMHTq90I:/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 01 21:46:49.479 INFO blam! f725f070c8d2fed3b119b2936bbecb639df86f6e9971d03b9c85541340b89fd3
Aug 01 21:46:49.486 INFO running `"docker" "start" "-a" "f725f070c8d2fed3b119b2936bbecb639df86f6e9971d03b9c85541340b89fd3"`
Aug 01 21:46:50.748 INFO kablam!     Checking sophon-wasm v0.18.1 (file:///source)
Aug 01 21:47:07.707 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:47:07.707 INFO kablam!  --> benches/interpreter.rs:1:1
Aug 01 21:47:07.707 INFO kablam!   |
Aug 01 21:47:07.707 INFO kablam! 1 | #![feature(test)]
Aug 01 21:47:07.707 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 21:47:07.707 INFO kablam! 
Aug 01 21:47:07.707 INFO kablam! error: aborting due to previous error
Aug 01 21:47:07.708 INFO kablam! 
Aug 01 21:47:07.708 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:47:07.781 INFO kablam! error: Could not compile `sophon-wasm`.
Aug 01 21:47:07.781 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:47:14.966 INFO kablam! error: build failed
Aug 01 21:47:14.968 INFO kablam! su: No module specific data is present
Aug 01 21:47:15.653 INFO running `"docker" "rm" "-f" "f725f070c8d2fed3b119b2936bbecb639df86f6e9971d03b9c85541340b89fd3"`
Aug 01 21:47:15.809 INFO blam! f725f070c8d2fed3b119b2936bbecb639df86f6e9971d03b9c85541340b89fd3