Aug 01 20:53:32.830 INFO checking tacho-0.4.2 against 1.27.2 for lazy_static-1
Aug 01 20:53:32.830 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:53:32.830 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:53:32.830 INFO running `"docker" "create" "-v" "/tmp/crater.OdxqIZtd5ZD6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 01 20:53:33.115 INFO blam! 81fed199b90163b13c27bc16d571ce35d79387ae96dbd1d63868e691961b4594
Aug 01 20:53:33.117 INFO running `"docker" "start" "-a" "81fed199b90163b13c27bc16d571ce35d79387ae96dbd1d63868e691961b4594"`
Aug 01 20:53:34.169 INFO kablam!     Checking pretty_env_logger v0.1.1
Aug 01 20:53:34.169 INFO kablam!     Checking hdrsample v3.0.0
Aug 01 20:53:35.582 INFO kablam!     Checking tacho v0.4.2 (file:///source)
Aug 01 20:53:36.421 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:53:36.421 INFO kablam!   --> src/lib.rs:16:19
Aug 01 20:53:36.421 INFO kablam!    |
Aug 01 20:53:36.421 INFO kablam! 16 | #![cfg_attr(test, feature(test))]
Aug 01 20:53:36.421 INFO kablam!    |                   ^^^^^^^^^^^^^^
Aug 01 20:53:36.421 INFO kablam! 
Aug 01 20:53:36.425 INFO kablam! error: aborting due to previous error
Aug 01 20:53:36.428 INFO kablam! 
Aug 01 20:53:36.429 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:53:36.443 INFO kablam! error: Could not compile `tacho`.
Aug 01 20:53:36.443 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:53:37.193 INFO kablam! error: build failed
Aug 01 20:53:37.195 INFO kablam! su: No module specific data is present
Aug 01 20:53:37.947 INFO running `"docker" "rm" "-f" "81fed199b90163b13c27bc16d571ce35d79387ae96dbd1d63868e691961b4594"`
Aug 01 20:53:38.119 INFO blam! 81fed199b90163b13c27bc16d571ce35d79387ae96dbd1d63868e691961b4594