Aug 01 22:00:57.037 INFO checking slog-config-0.4.0 against 1.27.2 for lazy_static-1
Aug 01 22:00:57.037 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:00:57.037 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:00:57.038 INFO running `"docker" "create" "-v" "/tmp/crater.pYLXxEVmRiMk:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 22:00:57.318 INFO blam! c759c262684c81b8fee559d789ba119c584f621375e73f88d444e5494fe50f01
Aug 01 22:00:57.321 INFO running `"docker" "start" "-a" "c759c262684c81b8fee559d789ba119c584f621375e73f88d444e5494fe50f01"`
Aug 01 22:00:58.599 INFO kablam! warning: Package `toml v0.4.6` does not have feature `serde`. It has a required dependency with that name, but only optional dependencies can be used as features. This is currently a warning to ease the transition, but it will become an error in the future.
Aug 01 22:00:58.663 INFO kablam!     Checking toml v0.4.6
Aug 01 22:00:58.665 INFO kablam!     Checking slog-term v2.4.0
Aug 01 22:00:58.666 INFO kablam!     Checking slog-json v2.2.0
Aug 01 22:01:04.354 INFO kablam!     Checking slog-config v0.4.0 (file:///source)
Aug 01 22:01:05.416 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:01:05.416 INFO kablam!  --> src/lib.rs:6:1
Aug 01 22:01:05.416 INFO kablam!   |
Aug 01 22:01:05.416 INFO kablam! 6 | #![feature(custom_derive)]
Aug 01 22:01:05.416 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 22:01:05.416 INFO kablam! 
Aug 01 22:01:05.416 INFO kablam! error: aborting due to previous error
Aug 01 22:01:05.416 INFO kablam! 
Aug 01 22:01:05.416 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:01:05.424 INFO kablam! error: Could not compile `slog-config`.
Aug 01 22:01:05.425 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 22:01:05.898 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:01:05.898 INFO kablam!  --> src/lib.rs:6:1
Aug 01 22:01:05.898 INFO kablam!   |
Aug 01 22:01:05.898 INFO kablam! 6 | #![feature(custom_derive)]
Aug 01 22:01:05.898 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 22:01:05.898 INFO kablam! 
Aug 01 22:01:05.899 INFO kablam! error: aborting due to previous error
Aug 01 22:01:05.899 INFO kablam! 
Aug 01 22:01:05.899 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:01:05.912 INFO kablam! error: Could not compile `slog-config`.
Aug 01 22:01:05.912 INFO kablam! 
Aug 01 22:01:05.912 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 22:01:05.914 INFO kablam! su: No module specific data is present
Aug 01 22:01:06.507 INFO running `"docker" "rm" "-f" "c759c262684c81b8fee559d789ba119c584f621375e73f88d444e5494fe50f01"`
Aug 01 22:01:06.683 INFO blam! c759c262684c81b8fee559d789ba119c584f621375e73f88d444e5494fe50f01