Sep 17 18:14:37.428 INFO checking rust-sort-0.1.4 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 18:14:37.428 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 18:14:37.428 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-1/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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=1000" "-e" "CMD=cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 18:14:37.794 INFO blam! bf199fc0641419941109fb5e5060bbe6a6afea20586196f120f1dec426d09103
Sep 17 18:14:37.802 INFO running `"docker" "start" "-a" "bf199fc0641419941109fb5e5060bbe6a6afea20586196f120f1dec426d09103"`
Sep 17 18:14:38.663 INFO kablam! usermod: no changes
Sep 17 18:14:38.703 INFO kablam!     Checking commandext v0.1.0
Sep 17 18:14:38.703 INFO kablam!     Checking rust-sort v0.1.4 (/source)
Sep 17 18:14:38.981 INFO kablam!     Checking utils v0.0.1
Sep 17 18:14:39.167 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 17 18:14:39.167 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:83:3
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam! 83 | #[experimental]
Sep 17 18:14:39.167 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.167 INFO kablam! 
Sep 17 18:14:39.167 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 17 18:14:39.167 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:77:3
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam! 77 | #[experimental]
Sep 17 18:14:39.167 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.167 INFO kablam! 
Sep 17 18:14:39.167 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 17 18:14:39.167 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:37:3
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam! 37 | #[experimental]
Sep 17 18:14:39.167 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.167 INFO kablam! 
Sep 17 18:14:39.167 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 17 18:14:39.167 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:29:3
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam! 29 | #[experimental]
Sep 17 18:14:39.167 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.167 INFO kablam! 
Sep 17 18:14:39.167 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 17 18:14:39.167 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/lib.rs:13:3
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam! 13 | #[experimental]
Sep 17 18:14:39.167 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.167 INFO kablam! 
Sep 17 18:14:39.167 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 17 18:14:39.167 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:63:3
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam! 63 | #[experimental]
Sep 17 18:14:39.167 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.167 INFO kablam! 
Sep 17 18:14:39.167 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 17 18:14:39.167 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:45:3
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam! 45 | #[experimental]
Sep 17 18:14:39.167 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.167 INFO kablam!    |
Sep 17 18:14:39.167 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.167 INFO kablam! 
Sep 17 18:14:39.168 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 17 18:14:39.168 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:37:3
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam! 37 | #[experimental]
Sep 17 18:14:39.168 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.168 INFO kablam! 
Sep 17 18:14:39.168 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 17 18:14:39.168 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:29:3
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam! 29 | #[experimental]
Sep 17 18:14:39.168 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.168 INFO kablam! 
Sep 17 18:14:39.168 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 17 18:14:39.168 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:21:3
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam! 21 | #[experimental]
Sep 17 18:14:39.168 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.168 INFO kablam! 
Sep 17 18:14:39.168 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 17 18:14:39.168 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.1/src/empty.rs:14:3
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam! 14 | #[experimental]
Sep 17 18:14:39.168 INFO kablam!    |   ^^^^^^^^^^^^
Sep 17 18:14:39.168 INFO kablam!    |
Sep 17 18:14:39.168 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 17 18:14:39.168 INFO kablam! 
Sep 17 18:14:39.168 INFO kablam! error: aborting due to 11 previous errors
Sep 17 18:14:39.168 INFO kablam! 
Sep 17 18:14:39.168 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 17 18:14:39.168 INFO kablam! error: Could not compile `utils`.
Sep 17 18:14:39.168 INFO kablam! 
Sep 17 18:14:39.168 INFO kablam! To learn more, run the command again with --verbose.
Sep 17 18:14:39.171 INFO kablam! su: No module specific data is present
Sep 17 18:14:39.996 INFO running `"docker" "rm" "-f" "bf199fc0641419941109fb5e5060bbe6a6afea20586196f120f1dec426d09103"`
Sep 17 18:14:40.059 INFO blam! bf199fc0641419941109fb5e5060bbe6a6afea20586196f120f1dec426d09103