Sep 04 08:02:11.930 INFO checking rust-sort-0.1.4 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 08:02:11.930 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 08:02:11.930 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-3/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 08:02:12.074 INFO blam! 7905adb5b2befc3313532a986b3afcfc7d984c10b52d35f37caacc5dffee5e97
Sep 04 08:02:12.076 INFO running `"docker" "start" "-a" "7905adb5b2befc3313532a986b3afcfc7d984c10b52d35f37caacc5dffee5e97"`
Sep 04 08:02:12.823 INFO kablam!     Checking rust-sort v0.1.4 (file:///source)
Sep 04 08:02:12.824 INFO kablam!     Checking utils v0.0.1
Sep 04 08:02:13.128 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)
Sep 04 08:02:13.128 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:83:3
Sep 04 08:02:13.128 INFO kablam!    |
Sep 04 08:02:13.128 INFO kablam! 83 | #[experimental]
Sep 04 08:02:13.128 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.128 INFO kablam!    |
Sep 04 08:02:13.128 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.128 INFO kablam! 
Sep 04 08:02:13.128 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)
Sep 04 08:02:13.128 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:77:3
Sep 04 08:02:13.128 INFO kablam!    |
Sep 04 08:02:13.128 INFO kablam! 77 | #[experimental]
Sep 04 08:02:13.128 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.129 INFO kablam!    |
Sep 04 08:02:13.129 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.129 INFO kablam! 
Sep 04 08:02:13.129 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)
Sep 04 08:02:13.129 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:37:3
Sep 04 08:02:13.129 INFO kablam!    |
Sep 04 08:02:13.129 INFO kablam! 37 | #[experimental]
Sep 04 08:02:13.129 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.129 INFO kablam!    |
Sep 04 08:02:13.129 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.129 INFO kablam! 
Sep 04 08:02:13.130 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)
Sep 04 08:02:13.130 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:29:3
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam! 29 | #[experimental]
Sep 04 08:02:13.130 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.130 INFO kablam! 
Sep 04 08:02:13.130 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)
Sep 04 08:02:13.130 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:13:3
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam! 13 | #[experimental]
Sep 04 08:02:13.130 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.130 INFO kablam! 
Sep 04 08:02:13.130 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)
Sep 04 08:02:13.130 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:63:3
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam! 63 | #[experimental]
Sep 04 08:02:13.130 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.130 INFO kablam! 
Sep 04 08:02:13.130 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)
Sep 04 08:02:13.130 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:45:3
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam! 45 | #[experimental]
Sep 04 08:02:13.130 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.130 INFO kablam!    |
Sep 04 08:02:13.130 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.130 INFO kablam! 
Sep 04 08:02:13.131 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)
Sep 04 08:02:13.131 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:37:3
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam! 37 | #[experimental]
Sep 04 08:02:13.131 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.131 INFO kablam! 
Sep 04 08:02:13.131 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)
Sep 04 08:02:13.131 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:29:3
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam! 29 | #[experimental]
Sep 04 08:02:13.131 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.131 INFO kablam! 
Sep 04 08:02:13.131 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)
Sep 04 08:02:13.131 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:21:3
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam! 21 | #[experimental]
Sep 04 08:02:13.131 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.131 INFO kablam! 
Sep 04 08:02:13.131 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)
Sep 04 08:02:13.131 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:14:3
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam! 14 | #[experimental]
Sep 04 08:02:13.131 INFO kablam!    |   ^^^^^^^^^^^^
Sep 04 08:02:13.131 INFO kablam!    |
Sep 04 08:02:13.131 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 08:02:13.131 INFO kablam! 
Sep 04 08:02:13.131 INFO kablam! error: aborting due to 11 previous errors
Sep 04 08:02:13.131 INFO kablam! 
Sep 04 08:02:13.131 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 08:02:13.137 INFO kablam! error: Could not compile `utils`.
Sep 04 08:02:13.137 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 08:02:13.287 INFO kablam! error: build failed
Sep 04 08:02:13.288 INFO kablam! su: No module specific data is present
Sep 04 08:02:13.706 INFO running `"docker" "rm" "-f" "7905adb5b2befc3313532a986b3afcfc7d984c10b52d35f37caacc5dffee5e97"`
Sep 04 08:02:13.794 INFO blam! 7905adb5b2befc3313532a986b3afcfc7d984c10b52d35f37caacc5dffee5e97