Aug 01 20:53:31.772 INFO checking tacho-0.4.2 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:53:31.772 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:53:31.772 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:53:31.772 INFO running `"docker" "create" "-v" "/tmp/crater.FVmyzjIRSTRZ:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 20:53:32.027 INFO blam! cd52e69c02e45132bb7b3396985b613a07d2e373b3e5eb478e290336602eb3f1
Aug 01 20:53:32.030 INFO running `"docker" "start" "-a" "cd52e69c02e45132bb7b3396985b613a07d2e373b3e5eb478e290336602eb3f1"`
Aug 01 20:53:33.255 INFO kablam!     Checking hdrsample v3.0.0
Aug 01 20:53:34.443 INFO kablam!     Checking tacho v0.4.2 (file:///source)
Aug 01 20:53:35.061 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:53:35.061 INFO kablam!   --> src/lib.rs:16:19
Aug 01 20:53:35.061 INFO kablam!    |
Aug 01 20:53:35.061 INFO kablam! 16 | #![cfg_attr(test, feature(test))]
Aug 01 20:53:35.061 INFO kablam!    |                   ^^^^^^^^^^^^^^
Aug 01 20:53:35.061 INFO kablam! 
Aug 01 20:53:35.066 INFO kablam! error: aborting due to previous error
Aug 01 20:53:35.066 INFO kablam! 
Aug 01 20:53:35.067 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:53:35.077 INFO kablam! error: Could not compile `tacho`.
Aug 01 20:53:35.078 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:53:35.981 INFO kablam! error: build failed
Aug 01 20:53:35.983 INFO kablam! su: No module specific data is present
Aug 01 20:53:36.639 INFO running `"docker" "rm" "-f" "cd52e69c02e45132bb7b3396985b613a07d2e373b3e5eb478e290336602eb3f1"`
Aug 01 20:53:36.843 INFO blam! cd52e69c02e45132bb7b3396985b613a07d2e373b3e5eb478e290336602eb3f1