Aug 02 02:48:54.697 INFO checking packageurl-0.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 02:48:54.697 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:48:54.697 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:48:54.698 INFO running `"docker" "create" "-v" "/tmp/crater.8AP0gmOf4ktB:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+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 02:48:54.976 INFO blam! bde12c8eb4c6758451c6bad3a466e16eb886dac5c21df12a6772b431cc35467a
Aug 02 02:48:54.979 INFO running `"docker" "start" "-a" "bde12c8eb4c6758451c6bad3a466e16eb886dac5c21df12a6772b431cc35467a"`
Aug 02 02:48:56.065 INFO kablam!     Checking packageurl v0.2.0 (file:///source)
Aug 02 02:48:58.145 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:48:58.145 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 02:48:58.145 INFO kablam!   |
Aug 02 02:48:58.145 INFO kablam! 1 | #![feature(test)]
Aug 02 02:48:58.145 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 02:48:58.145 INFO kablam! 
Aug 02 02:48:58.145 INFO kablam! error: aborting due to previous error
Aug 02 02:48:58.145 INFO kablam! 
Aug 02 02:48:58.145 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:48:58.151 INFO kablam! error: Could not compile `packageurl`.
Aug 02 02:48:58.155 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:49:00.970 INFO kablam! error: build failed
Aug 02 02:49:00.972 INFO kablam! su: No module specific data is present
Aug 02 02:49:01.501 INFO running `"docker" "rm" "-f" "bde12c8eb4c6758451c6bad3a466e16eb886dac5c21df12a6772b431cc35467a"`
Aug 02 02:49:01.621 INFO blam! bde12c8eb4c6758451c6bad3a466e16eb886dac5c21df12a6772b431cc35467a