Aug 01 19:33:39.877 INFO checking untagged-option-0.1.1 against 1.27.2+tmplazy for lazy_static-1
Aug 01 19:33:39.877 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:33:39.877 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:33:39.877 INFO running `"docker" "create" "-v" "/tmp/crater.zaYNiTYvNBZw:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+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 19:33:40.060 INFO blam! 9c6ff4c0747375f8fc4e259dbf587a6f56d1473dedd772b36900d7d6d115df15
Aug 01 19:33:40.061 INFO running `"docker" "start" "-a" "9c6ff4c0747375f8fc4e259dbf587a6f56d1473dedd772b36900d7d6d115df15"`
Aug 01 19:33:41.222 INFO kablam!     Checking untagged-option v0.1.1 (file:///source)
Aug 01 19:33:41.360 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:33:41.361 INFO kablam!  --> src/lib.rs:5:1
Aug 01 19:33:41.361 INFO kablam!   |
Aug 01 19:33:41.361 INFO kablam! 5 | #![feature(untagged_unions, const_fn)]
Aug 01 19:33:41.361 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:33:41.361 INFO kablam! 
Aug 01 19:33:41.361 INFO kablam! error: aborting due to previous error
Aug 01 19:33:41.361 INFO kablam! 
Aug 01 19:33:41.361 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:33:41.365 INFO kablam! error: Could not compile `untagged-option`.
Aug 01 19:33:41.365 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 19:33:41.479 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:33:41.479 INFO kablam!  --> src/lib.rs:5:1
Aug 01 19:33:41.479 INFO kablam!   |
Aug 01 19:33:41.479 INFO kablam! 5 | #![feature(untagged_unions, const_fn)]
Aug 01 19:33:41.480 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:33:41.480 INFO kablam! 
Aug 01 19:33:41.480 INFO kablam! error: aborting due to previous error
Aug 01 19:33:41.480 INFO kablam! 
Aug 01 19:33:41.480 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:33:41.491 INFO kablam! error: Could not compile `untagged-option`.
Aug 01 19:33:41.491 INFO kablam! 
Aug 01 19:33:41.491 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 19:33:41.492 INFO kablam! su: No module specific data is present
Aug 01 19:33:42.562 INFO running `"docker" "rm" "-f" "9c6ff4c0747375f8fc4e259dbf587a6f56d1473dedd772b36900d7d6d115df15"`
Aug 01 19:33:42.728 INFO blam! 9c6ff4c0747375f8fc4e259dbf587a6f56d1473dedd772b36900d7d6d115df15