Aug 02 01:32:35.049 INFO checking quickcheck-0.6.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 01:32:35.049 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:32:35.049 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:32:35.050 INFO running `"docker" "create" "-v" "/tmp/crater.DaGWyQrATIn6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+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 01:32:35.250 INFO blam! 5190cfc56f6c8bf88c2d062a4b2b98ccf881b530e3d0392a0eb23858310b026c
Aug 02 01:32:35.252 INFO running `"docker" "start" "-a" "5190cfc56f6c8bf88c2d062a4b2b98ccf881b530e3d0392a0eb23858310b026c"`
Aug 02 01:32:36.416 INFO kablam!     Checking quickcheck v0.6.2 (file:///source)
Aug 02 01:32:41.394 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:32:41.395 INFO kablam!  --> benches/tuples.rs:1:1
Aug 02 01:32:41.395 INFO kablam!   |
Aug 02 01:32:41.395 INFO kablam! 1 | #![feature(test)]
Aug 02 01:32:41.395 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:32:41.395 INFO kablam! 
Aug 02 01:32:41.395 INFO kablam! error: aborting due to previous error
Aug 02 01:32:41.395 INFO kablam! 
Aug 02 01:32:41.395 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:32:41.409 INFO kablam! error: Could not compile `quickcheck`.
Aug 02 01:32:41.410 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:32:41.559 INFO kablam! error: build failed
Aug 02 01:32:41.569 INFO kablam! su: No module specific data is present
Aug 02 01:32:42.125 INFO running `"docker" "rm" "-f" "5190cfc56f6c8bf88c2d062a4b2b98ccf881b530e3d0392a0eb23858310b026c"`
Aug 02 01:32:42.322 INFO blam! 5190cfc56f6c8bf88c2d062a4b2b98ccf881b530e3d0392a0eb23858310b026c