Aug 02 00:30:22.146 INFO checking ripemd160-0.7.0 against 1.27.2 for lazy_static-1
Aug 02 00:30:22.146 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:30:22.146 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:30:22.146 INFO running `"docker" "create" "-v" "/tmp/crater.MJICNKxcUeyN:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 02 00:30:22.676 INFO blam! eee1245367ac9199a03389b9282c58212119c341e3222340b5aa1c7c210ffd7b
Aug 02 00:30:22.679 INFO running `"docker" "start" "-a" "eee1245367ac9199a03389b9282c58212119c341e3222340b5aa1c7c210ffd7b"`
Aug 02 00:30:25.496 INFO kablam!     Checking digest v0.7.5
Aug 02 00:30:26.569 INFO kablam!     Checking ripemd160 v0.7.0 (file:///source)
Aug 02 00:30:30.226 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 00:30:30.226 INFO kablam!  --> benches/lib.rs:2:1
Aug 02 00:30:30.226 INFO kablam!   |
Aug 02 00:30:30.226 INFO kablam! 2 | #![feature(test)]
Aug 02 00:30:30.226 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 00:30:30.226 INFO kablam! 
Aug 02 00:30:30.227 INFO kablam! error: aborting due to previous error
Aug 02 00:30:30.227 INFO kablam! 
Aug 02 00:30:30.228 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 00:30:30.236 INFO kablam! error: Could not compile `ripemd160`.
Aug 02 00:30:30.236 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 00:30:30.702 INFO kablam! error: build failed
Aug 02 00:30:30.703 INFO kablam! su: No module specific data is present
Aug 02 00:30:32.813 INFO running `"docker" "rm" "-f" "eee1245367ac9199a03389b9282c58212119c341e3222340b5aa1c7c210ffd7b"`
Aug 02 00:30:32.950 INFO blam! eee1245367ac9199a03389b9282c58212119c341e3222340b5aa1c7c210ffd7b