Aug 30 05:07:56.680 INFO checking rust-sort-0.1.4 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 05:07:56.680 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 05:07:56.680 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-2/master#ede55518431154bc761f7b2438cce9078c162700:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 05:07:56.842 INFO blam! 0b91fbc10a33b20416a7190ac4b4515c9f44a7b82df9d84c8546b8a18e307e0f
Aug 30 05:07:56.844 INFO running `"docker" "start" "-a" "0b91fbc10a33b20416a7190ac4b4515c9f44a7b82df9d84c8546b8a18e307e0f"`
Aug 30 05:07:57.680 INFO kablam!     Checking commandext v0.1.0
Aug 30 05:07:57.680 INFO kablam!     Checking rust-sort v0.1.4 (file:///source)
Aug 30 05:07:58.140 INFO kablam!     Checking utils v0.0.1
Aug 30 05:07:58.400 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 30 05:07:58.400 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:83:3
Aug 30 05:07:58.400 INFO kablam!    |
Aug 30 05:07:58.400 INFO kablam! 83 | #[experimental]
Aug 30 05:07:58.400 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.400 INFO kablam!    |
Aug 30 05:07:58.400 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.401 INFO kablam! 
Aug 30 05:07:58.401 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 30 05:07:58.401 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:77:3
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam! 77 | #[experimental]
Aug 30 05:07:58.401 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.401 INFO kablam! 
Aug 30 05:07:58.401 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 30 05:07:58.401 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:37:3
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam! 37 | #[experimental]
Aug 30 05:07:58.401 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.401 INFO kablam! 
Aug 30 05:07:58.401 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 30 05:07:58.401 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:29:3
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam! 29 | #[experimental]
Aug 30 05:07:58.401 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.401 INFO kablam! 
Aug 30 05:07:58.401 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 30 05:07:58.401 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:13:3
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam! 13 | #[experimental]
Aug 30 05:07:58.401 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.401 INFO kablam!    |
Aug 30 05:07:58.401 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.401 INFO kablam! 
Aug 30 05:07:58.402 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 30 05:07:58.402 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:63:3
Aug 30 05:07:58.402 INFO kablam!    |
Aug 30 05:07:58.402 INFO kablam! 63 | #[experimental]
Aug 30 05:07:58.402 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.402 INFO kablam!    |
Aug 30 05:07:58.402 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.402 INFO kablam! 
Aug 30 05:07:58.402 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 30 05:07:58.402 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:45:3
Aug 30 05:07:58.402 INFO kablam!    |
Aug 30 05:07:58.402 INFO kablam! 45 | #[experimental]
Aug 30 05:07:58.402 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.402 INFO kablam!    |
Aug 30 05:07:58.402 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.402 INFO kablam! 
Aug 30 05:07:58.402 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 30 05:07:58.402 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:37:3
Aug 30 05:07:58.402 INFO kablam!    |
Aug 30 05:07:58.402 INFO kablam! 37 | #[experimental]
Aug 30 05:07:58.402 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.403 INFO kablam!    |
Aug 30 05:07:58.403 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.403 INFO kablam! 
Aug 30 05:07:58.403 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 30 05:07:58.403 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:29:3
Aug 30 05:07:58.403 INFO kablam!    |
Aug 30 05:07:58.403 INFO kablam! 29 | #[experimental]
Aug 30 05:07:58.403 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.403 INFO kablam!    |
Aug 30 05:07:58.403 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.403 INFO kablam! 
Aug 30 05:07:58.403 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 30 05:07:58.403 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:21:3
Aug 30 05:07:58.403 INFO kablam!    |
Aug 30 05:07:58.403 INFO kablam! 21 | #[experimental]
Aug 30 05:07:58.403 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.403 INFO kablam!    |
Aug 30 05:07:58.403 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.403 INFO kablam! 
Aug 30 05:07:58.403 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 30 05:07:58.403 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:14:3
Aug 30 05:07:58.403 INFO kablam!    |
Aug 30 05:07:58.403 INFO kablam! 14 | #[experimental]
Aug 30 05:07:58.403 INFO kablam!    |   ^^^^^^^^^^^^
Aug 30 05:07:58.403 INFO kablam!    |
Aug 30 05:07:58.403 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 05:07:58.404 INFO kablam! 
Aug 30 05:07:58.404 INFO kablam! error: aborting due to 11 previous errors
Aug 30 05:07:58.404 INFO kablam! 
Aug 30 05:07:58.404 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 05:07:58.407 INFO kablam! error: Could not compile `utils`.
Aug 30 05:07:58.407 INFO kablam! 
Aug 30 05:07:58.407 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 05:07:58.408 INFO kablam! su: No module specific data is present
Aug 30 05:07:59.062 INFO running `"docker" "rm" "-f" "0b91fbc10a33b20416a7190ac4b4515c9f44a7b82df9d84c8546b8a18e307e0f"`
Aug 30 05:07:59.147 INFO blam! 0b91fbc10a33b20416a7190ac4b4515c9f44a7b82df9d84c8546b8a18e307e0f