Aug 02 00:17:13.061 INFO checking route-recognizer-0.1.12 against 1.27.2+tmplazy for lazy_static-1
Aug 02 00:17:13.061 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:17:13.061 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:17:13.061 INFO running `"docker" "create" "-v" "/tmp/crater.IKtBlJGUvgPX:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+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 00:17:13.319 INFO blam! c489d13b924730a4c0353d3bbff163418567aa1899bc132d322cb5696cd41b88
Aug 02 00:17:13.321 INFO running `"docker" "start" "-a" "c489d13b924730a4c0353d3bbff163418567aa1899bc132d322cb5696cd41b88"`
Aug 02 00:17:14.146 INFO kablam!     Checking route-recognizer v0.1.12 (file:///source)
Aug 02 00:17:14.875 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 00:17:14.875 INFO kablam!  --> src/lib.rs:1:19
Aug 02 00:17:14.875 INFO kablam!   |
Aug 02 00:17:14.875 INFO kablam! 1 | #![cfg_attr(test, feature(test))]
Aug 02 00:17:14.875 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 00:17:14.879 INFO kablam! 
Aug 02 00:17:14.882 INFO kablam! error: aborting due to previous error
Aug 02 00:17:14.883 INFO kablam! 
Aug 02 00:17:14.883 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 00:17:14.891 INFO kablam! error: Could not compile `route-recognizer`.
Aug 02 00:17:14.891 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 00:17:15.374 INFO kablam! error: build failed
Aug 02 00:17:15.375 INFO kablam! su: No module specific data is present
Aug 02 00:17:15.962 INFO running `"docker" "rm" "-f" "c489d13b924730a4c0353d3bbff163418567aa1899bc132d322cb5696cd41b88"`
Aug 02 00:17:16.112 INFO blam! c489d13b924730a4c0353d3bbff163418567aa1899bc132d322cb5696cd41b88