Sep 06 09:18:37.494 INFO checking buildable-0.0.5 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 09:18:37.494 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 09:18:37.494 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 09:18:37.716 INFO blam! 7f26dbbabefb827dc6ad7c165aae03dc11777c0fa3572352cff8af7ac1ae1315
Sep 06 09:18:37.718 INFO running `"docker" "start" "-a" "7f26dbbabefb827dc6ad7c165aae03dc11777c0fa3572352cff8af7ac1ae1315"`
Sep 06 09:18:38.725 INFO kablam! usermod: no changes
Sep 06 09:18:38.756 INFO kablam!     Checking buildable v0.0.5 (file:///source)
Sep 06 09:18:38.815 INFO kablam! warning: unknown lint: `unstable`
Sep 06 09:18:38.815 INFO kablam!   --> src/lib.rs:12:10
Sep 06 09:18:38.815 INFO kablam!    |
Sep 06 09:18:38.815 INFO kablam! 12 | #![allow(unstable)]
Sep 06 09:18:38.815 INFO kablam!    |          ^^^^^^^^
Sep 06 09:18:38.816 INFO kablam!    |
Sep 06 09:18:38.816 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 06 09:18:38.816 INFO kablam! 
Sep 06 09:18:38.816 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 06 09:18:38.816 INFO kablam!   --> src/lib.rs:11:4
Sep 06 09:18:38.816 INFO kablam!    |
Sep 06 09:18:38.816 INFO kablam! 11 | #![experimental]
Sep 06 09:18:38.816 INFO kablam!    |    ^^^^^^^^^^^^
Sep 06 09:18:38.816 INFO kablam!    |
Sep 06 09:18:38.816 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 09:18:38.816 INFO kablam! 
Sep 06 09:18:38.894 INFO kablam! warning: unknown lint: `unstable`
Sep 06 09:18:38.894 INFO kablam!   --> src/lib.rs:12:10
Sep 06 09:18:38.894 INFO kablam!    |
Sep 06 09:18:38.894 INFO kablam! 12 | #![allow(unstable)]
Sep 06 09:18:38.894 INFO kablam!    |          ^^^^^^^^
Sep 06 09:18:38.894 INFO kablam!    |
Sep 06 09:18:38.894 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 06 09:18:38.894 INFO kablam! 
Sep 06 09:18:38.894 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 06 09:18:38.894 INFO kablam!   --> src/lib.rs:11:4
Sep 06 09:18:38.894 INFO kablam!    |
Sep 06 09:18:38.894 INFO kablam! 11 | #![experimental]
Sep 06 09:18:38.894 INFO kablam!    |    ^^^^^^^^^^^^
Sep 06 09:18:38.894 INFO kablam!    |
Sep 06 09:18:38.894 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 09:18:38.894 INFO kablam! 
Sep 06 09:18:39.118 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 06 09:18:39.118 INFO kablam!   --> src/lib.rs:20:3
Sep 06 09:18:39.118 INFO kablam!    |
Sep 06 09:18:39.118 INFO kablam! 20 | #[experimental]
Sep 06 09:18:39.118 INFO kablam!    |   ^^^^^^^^^^^^
Sep 06 09:18:39.118 INFO kablam!    |
Sep 06 09:18:39.118 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 09:18:39.118 INFO kablam! 
Sep 06 09:18:39.118 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 06 09:18:39.118 INFO kablam!    --> src/lib.rs:196:3
Sep 06 09:18:39.118 INFO kablam!     |
Sep 06 09:18:39.118 INFO kablam! 196 | #[experimental]
Sep 06 09:18:39.118 INFO kablam!     |   ^^^^^^^^^^^^
Sep 06 09:18:39.118 INFO kablam!     |
Sep 06 09:18:39.118 INFO kablam!     = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 09:18:39.118 INFO kablam! 
Sep 06 09:18:39.146 INFO kablam! error: aborting due to 3 previous errors
Sep 06 09:18:39.146 INFO kablam! 
Sep 06 09:18:39.146 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 09:18:39.170 INFO kablam! error: Could not compile `buildable`.
Sep 06 09:18:39.170 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 09:18:39.178 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 06 09:18:39.178 INFO kablam!   --> src/lib.rs:20:3
Sep 06 09:18:39.178 INFO kablam!    |
Sep 06 09:18:39.178 INFO kablam! 20 | #[experimental]
Sep 06 09:18:39.178 INFO kablam!    |   ^^^^^^^^^^^^
Sep 06 09:18:39.178 INFO kablam!    |
Sep 06 09:18:39.178 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 09:18:39.178 INFO kablam! 
Sep 06 09:18:39.178 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 06 09:18:39.178 INFO kablam!    --> src/lib.rs:196:3
Sep 06 09:18:39.178 INFO kablam!     |
Sep 06 09:18:39.178 INFO kablam! 196 | #[experimental]
Sep 06 09:18:39.178 INFO kablam!     |   ^^^^^^^^^^^^
Sep 06 09:18:39.178 INFO kablam!     |
Sep 06 09:18:39.178 INFO kablam!     = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 09:18:39.178 INFO kablam! 
Sep 06 09:18:39.186 INFO kablam! error: aborting due to 3 previous errors
Sep 06 09:18:39.186 INFO kablam! 
Sep 06 09:18:39.186 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 09:18:39.188 INFO kablam! error: Could not compile `buildable`.
Sep 06 09:18:39.189 INFO kablam! 
Sep 06 09:18:39.189 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 09:18:39.190 INFO kablam! su: No module specific data is present
Sep 06 09:18:40.500 INFO running `"docker" "rm" "-f" "7f26dbbabefb827dc6ad7c165aae03dc11777c0fa3572352cff8af7ac1ae1315"`
Sep 06 09:18:40.635 INFO blam! 7f26dbbabefb827dc6ad7c165aae03dc11777c0fa3572352cff8af7ac1ae1315