Aug 11 03:21:58.752 INFO checking rust-sort-0.1.4 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 03:21:58.752 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 03:21:58.752 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 03:21:58.752 INFO running `"docker" "create" "-v" "/tmp/crater.EFGHV9ruXKhw:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-2/try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+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 +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 03:21:59.007 INFO blam! 9ce9fe4f3483ad222d4a5a858fe366fd7a7bfb365357a3f14503fe5693f9ce9c
Aug 11 03:21:59.019 INFO running `"docker" "start" "-a" "9ce9fe4f3483ad222d4a5a858fe366fd7a7bfb365357a3f14503fe5693f9ce9c"`
Aug 11 03:22:00.106 INFO kablam!     Checking commandext v0.1.0
Aug 11 03:22:00.106 INFO kablam!     Checking rust-sort v0.1.4 (file:///source)
Aug 11 03:22:01.041 INFO kablam!     Checking utils v0.0.1
Aug 11 03:22:01.368 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.368 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:14:1
Aug 11 03:22:01.368 INFO kablam!    |
Aug 11 03:22:01.368 INFO kablam! 14 | #[experimental]
Aug 11 03:22:01.368 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.368 INFO kablam!    |
Aug 11 03:22:01.368 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.368 INFO kablam! 
Aug 11 03:22:01.369 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.369 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:21:1
Aug 11 03:22:01.369 INFO kablam!    |
Aug 11 03:22:01.369 INFO kablam! 21 | #[experimental]
Aug 11 03:22:01.369 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.369 INFO kablam!    |
Aug 11 03:22:01.369 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.369 INFO kablam! 
Aug 11 03:22:01.369 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.369 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:29:1
Aug 11 03:22:01.369 INFO kablam!    |
Aug 11 03:22:01.369 INFO kablam! 29 | #[experimental]
Aug 11 03:22:01.369 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.369 INFO kablam!    |
Aug 11 03:22:01.369 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.369 INFO kablam! 
Aug 11 03:22:01.369 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.369 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:37:1
Aug 11 03:22:01.369 INFO kablam!    |
Aug 11 03:22:01.369 INFO kablam! 37 | #[experimental]
Aug 11 03:22:01.369 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.370 INFO kablam! 
Aug 11 03:22:01.370 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.370 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:45:1
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam! 45 | #[experimental]
Aug 11 03:22:01.370 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.370 INFO kablam! 
Aug 11 03:22:01.370 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.370 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:63:1
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam! 63 | #[experimental]
Aug 11 03:22:01.370 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.370 INFO kablam! 
Aug 11 03:22:01.370 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.370 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:13:1
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam! 13 | #[experimental]
Aug 11 03:22:01.370 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.370 INFO kablam! 
Aug 11 03:22:01.370 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.370 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:29:1
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.370 INFO kablam! 29 | #[experimental]
Aug 11 03:22:01.370 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.370 INFO kablam!    |
Aug 11 03:22:01.371 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.371 INFO kablam! 
Aug 11 03:22:01.371 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.371 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:37:1
Aug 11 03:22:01.371 INFO kablam!    |
Aug 11 03:22:01.371 INFO kablam! 37 | #[experimental]
Aug 11 03:22:01.371 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.371 INFO kablam!    |
Aug 11 03:22:01.371 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.371 INFO kablam! 
Aug 11 03:22:01.371 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.371 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:77:1
Aug 11 03:22:01.371 INFO kablam!    |
Aug 11 03:22:01.371 INFO kablam! 77 | #[experimental]
Aug 11 03:22:01.371 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.371 INFO kablam!    |
Aug 11 03:22:01.371 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.371 INFO kablam! 
Aug 11 03:22:01.371 INFO kablam! error[E0658]: The attribute `experimental` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 11 03:22:01.371 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:83:1
Aug 11 03:22:01.371 INFO kablam!    |
Aug 11 03:22:01.371 INFO kablam! 83 | #[experimental]
Aug 11 03:22:01.371 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:01.371 INFO kablam!    |
Aug 11 03:22:01.371 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:01.371 INFO kablam! 
Aug 11 03:22:01.371 INFO kablam! error: aborting due to 11 previous errors
Aug 11 03:22:01.371 INFO kablam! 
Aug 11 03:22:01.371 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 11 03:22:01.375 INFO kablam! error: Could not compile `utils`.
Aug 11 03:22:01.376 INFO kablam! 
Aug 11 03:22:01.376 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 03:22:01.386 INFO kablam! su: No module specific data is present
Aug 11 03:22:02.095 INFO running `"docker" "rm" "-f" "9ce9fe4f3483ad222d4a5a858fe366fd7a7bfb365357a3f14503fe5693f9ce9c"`
Aug 11 03:22:02.240 INFO blam! 9ce9fe4f3483ad222d4a5a858fe366fd7a7bfb365357a3f14503fe5693f9ce9c