Aug 01 19:28:35.531 INFO checking uuid-0.5.1 against 1.27.2+tmplazy for lazy_static-1
Aug 01 19:28:35.531 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:28:35.531 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:28:35.531 INFO running `"docker" "create" "-v" "/tmp/crater.vMgL5pCqpMNW:/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 01 19:28:35.727 INFO blam! bc974eb9f60f81ea3146a88f07f0615355320f0320774b157e72488d7f1ac402
Aug 01 19:28:35.767 INFO running `"docker" "start" "-a" "bc974eb9f60f81ea3146a88f07f0615355320f0320774b157e72488d7f1ac402"`
Aug 01 19:28:37.028 INFO kablam!     Checking uuid v0.5.1 (file:///source)
Aug 01 19:28:38.853 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:28:38.853 INFO kablam!  --> benches/parse_str.rs:1:1
Aug 01 19:28:38.853 INFO kablam!   |
Aug 01 19:28:38.853 INFO kablam! 1 | #![feature(test)]
Aug 01 19:28:38.853 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 19:28:38.853 INFO kablam! 
Aug 01 19:28:38.853 INFO kablam! error: aborting due to previous error
Aug 01 19:28:38.853 INFO kablam! 
Aug 01 19:28:38.854 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:28:38.873 INFO kablam! error: Could not compile `uuid`.
Aug 01 19:28:38.874 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 19:28:39.100 INFO kablam! error: build failed
Aug 01 19:28:39.102 INFO kablam! su: No module specific data is present
Aug 01 19:28:39.819 INFO running `"docker" "rm" "-f" "bc974eb9f60f81ea3146a88f07f0615355320f0320774b157e72488d7f1ac402"`
Aug 01 19:28:39.994 INFO blam! bc974eb9f60f81ea3146a88f07f0615355320f0320774b157e72488d7f1ac402