Aug 11 03:22:00.681 INFO checking rust-sort-0.1.4 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 03:22:00.681 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 03:22:00.681 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 03:22:00.681 INFO running `"docker" "create" "-v" "/tmp/crater.Asa7kVvWQoST:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-6/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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 +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 03:22:01.007 INFO blam! dd6408328fb2fc99745622966a34741a516ef0dcdf46ae9fdd166f46e3b31a7b
Aug 11 03:22:01.009 INFO running `"docker" "start" "-a" "dd6408328fb2fc99745622966a34741a516ef0dcdf46ae9fdd166f46e3b31a7b"`
Aug 11 03:22:02.528 INFO kablam!     Checking commandext v0.1.0
Aug 11 03:22:02.530 INFO kablam!     Checking rust-sort v0.1.4 (file:///source)
Aug 11 03:22:03.048 INFO kablam!     Checking utils v0.0.1
Aug 11 03:22:03.302 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 03:22:03.302 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:14:1
Aug 11 03:22:03.302 INFO kablam!    |
Aug 11 03:22:03.302 INFO kablam! 14 | #[experimental]
Aug 11 03:22:03.302 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.302 INFO kablam!    |
Aug 11 03:22:03.302 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.302 INFO kablam! 
Aug 11 03:22:03.302 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 03:22:03.302 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:21:1
Aug 11 03:22:03.302 INFO kablam!    |
Aug 11 03:22:03.302 INFO kablam! 21 | #[experimental]
Aug 11 03:22:03.302 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.302 INFO kablam!    |
Aug 11 03:22:03.302 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.302 INFO kablam! 
Aug 11 03:22:03.302 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 03:22:03.302 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:29:1
Aug 11 03:22:03.302 INFO kablam!    |
Aug 11 03:22:03.302 INFO kablam! 29 | #[experimental]
Aug 11 03:22:03.302 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.302 INFO kablam!    |
Aug 11 03:22:03.302 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.302 INFO kablam! 
Aug 11 03:22:03.302 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:37:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 37 | #[experimental]
Aug 11 03:22:03.303 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.303 INFO kablam! 
Aug 11 03:22:03.303 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:45:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 45 | #[experimental]
Aug 11 03:22:03.303 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.303 INFO kablam! 
Aug 11 03:22:03.303 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:63:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 63 | #[experimental]
Aug 11 03:22:03.303 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.303 INFO kablam! 
Aug 11 03:22:03.303 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:13:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 13 | #[experimental]
Aug 11 03:22:03.303 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.303 INFO kablam! 
Aug 11 03:22:03.303 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:29:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 29 | #[experimental]
Aug 11 03:22:03.303 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.303 INFO kablam! 
Aug 11 03:22:03.303 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:37:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 37 | #[experimental]
Aug 11 03:22:03.303 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.303 INFO kablam! 
Aug 11 03:22:03.303 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:77:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 77 | #[experimental]
Aug 11 03:22:03.303 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.303 INFO kablam! 
Aug 11 03:22:03.303 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 03:22:03.303 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:83:1
Aug 11 03:22:03.303 INFO kablam!    |
Aug 11 03:22:03.303 INFO kablam! 83 | #[experimental]
Aug 11 03:22:03.304 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 11 03:22:03.304 INFO kablam!    |
Aug 11 03:22:03.304 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 11 03:22:03.304 INFO kablam! 
Aug 11 03:22:03.304 INFO kablam! error: aborting due to 11 previous errors
Aug 11 03:22:03.304 INFO kablam! 
Aug 11 03:22:03.304 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 11 03:22:03.307 INFO kablam! error: Could not compile `utils`.
Aug 11 03:22:03.307 INFO kablam! 
Aug 11 03:22:03.307 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 03:22:03.309 INFO kablam! su: No module specific data is present
Aug 11 03:22:04.245 INFO running `"docker" "rm" "-f" "dd6408328fb2fc99745622966a34741a516ef0dcdf46ae9fdd166f46e3b31a7b"`
Aug 11 03:22:04.340 INFO blam! dd6408328fb2fc99745622966a34741a516ef0dcdf46ae9fdd166f46e3b31a7b