Aug 01 21:56:38.498 INFO checking smallbox-0.4.4 against 1.27.2 for lazy_static-1
Aug 01 21:56:38.498 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:56:38.498 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:56:38.498 INFO running `"docker" "create" "-v" "/tmp/crater.gHrEpxorXsGv:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 21:56:38.756 INFO blam! 105e4f526033088f86a996cfc89fd62002bbb44b49b58724386c8f169529a4d4
Aug 01 21:56:38.759 INFO running `"docker" "start" "-a" "105e4f526033088f86a996cfc89fd62002bbb44b49b58724386c8f169529a4d4"`
Aug 01 21:56:39.782 INFO kablam!     Checking nodrop-union v0.1.9
Aug 01 21:56:40.071 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:56:40.071 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/nodrop-union-0.1.9/src/lib.rs:21:1
Aug 01 21:56:40.071 INFO kablam!    |
Aug 01 21:56:40.071 INFO kablam! 21 | #![feature(untagged_unions)]
Aug 01 21:56:40.071 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:56:40.076 INFO kablam! 
Aug 01 21:56:40.077 INFO kablam! error: aborting due to previous error
Aug 01 21:56:40.077 INFO kablam! 
Aug 01 21:56:40.078 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:56:40.084 INFO kablam! error: Could not compile `nodrop-union`.
Aug 01 21:56:40.084 INFO kablam! 
Aug 01 21:56:40.084 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 21:56:40.085 INFO kablam! su: No module specific data is present
Aug 01 21:56:40.626 INFO running `"docker" "rm" "-f" "105e4f526033088f86a996cfc89fd62002bbb44b49b58724386c8f169529a4d4"`
Aug 01 21:56:40.790 INFO blam! 105e4f526033088f86a996cfc89fd62002bbb44b49b58724386c8f169529a4d4