Sep 10 21:53:15.095 INFO checking buildable-0.0.5 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 21:53:15.095 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 21:53:15.095 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 21:53:15.344 INFO blam! ee29148a647997a569169ea01b1d1b32ecc0d1dfe3b487a5fd653401d4ed8465
Sep 10 21:53:15.346 INFO running `"docker" "start" "-a" "ee29148a647997a569169ea01b1d1b32ecc0d1dfe3b487a5fd653401d4ed8465"`
Sep 10 21:53:16.384 INFO kablam! usermod: no changes
Sep 10 21:53:16.446 INFO kablam!     Checking buildable v0.0.5 (file:///source)
Sep 10 21:53:16.614 INFO kablam! warning: unknown lint: `unstable`
Sep 10 21:53:16.614 INFO kablam!   --> src/lib.rs:12:10
Sep 10 21:53:16.614 INFO kablam!    |
Sep 10 21:53:16.614 INFO kablam! 12 | #![allow(unstable)]
Sep 10 21:53:16.614 INFO kablam!    |          ^^^^^^^^
Sep 10 21:53:16.614 INFO kablam!    |
Sep 10 21:53:16.614 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 10 21:53:16.614 INFO kablam! 
Sep 10 21:53:16.614 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 10 21:53:16.614 INFO kablam!   --> src/lib.rs:11:4
Sep 10 21:53:16.614 INFO kablam!    |
Sep 10 21:53:16.614 INFO kablam! 11 | #![experimental]
Sep 10 21:53:16.614 INFO kablam!    |    ^^^^^^^^^^^^
Sep 10 21:53:16.614 INFO kablam!    |
Sep 10 21:53:16.614 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 21:53:16.614 INFO kablam! 
Sep 10 21:53:16.619 INFO kablam! warning: unknown lint: `unstable`
Sep 10 21:53:16.619 INFO kablam!   --> src/lib.rs:12:10
Sep 10 21:53:16.619 INFO kablam!    |
Sep 10 21:53:16.619 INFO kablam! 12 | #![allow(unstable)]
Sep 10 21:53:16.619 INFO kablam!    |          ^^^^^^^^
Sep 10 21:53:16.619 INFO kablam!    |
Sep 10 21:53:16.619 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 10 21:53:16.619 INFO kablam! 
Sep 10 21:53:16.622 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 10 21:53:16.622 INFO kablam!   --> src/lib.rs:11:4
Sep 10 21:53:16.622 INFO kablam!    |
Sep 10 21:53:16.622 INFO kablam! 11 | #![experimental]
Sep 10 21:53:16.622 INFO kablam!    |    ^^^^^^^^^^^^
Sep 10 21:53:16.622 INFO kablam!    |
Sep 10 21:53:16.622 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 21:53:16.622 INFO kablam! 
Sep 10 21:53:16.910 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 10 21:53:16.910 INFO kablam!   --> src/lib.rs:20:3
Sep 10 21:53:16.910 INFO kablam!    |
Sep 10 21:53:16.910 INFO kablam! 20 | #[experimental]
Sep 10 21:53:16.910 INFO kablam!    |   ^^^^^^^^^^^^
Sep 10 21:53:16.910 INFO kablam!    |
Sep 10 21:53:16.910 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 21:53:16.910 INFO kablam! 
Sep 10 21:53:16.910 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 10 21:53:16.910 INFO kablam!    --> src/lib.rs:196:3
Sep 10 21:53:16.910 INFO kablam!     |
Sep 10 21:53:16.910 INFO kablam! 196 | #[experimental]
Sep 10 21:53:16.910 INFO kablam!     |   ^^^^^^^^^^^^
Sep 10 21:53:16.910 INFO kablam!     |
Sep 10 21:53:16.910 INFO kablam!     = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 21:53:16.910 INFO kablam! 
Sep 10 21:53:16.914 INFO kablam! error: aborting due to 3 previous errors
Sep 10 21:53:16.914 INFO kablam! 
Sep 10 21:53:16.914 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 10 21:53:16.919 INFO kablam! error: Could not compile `buildable`.
Sep 10 21:53:16.919 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 21:53:16.948 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 10 21:53:16.948 INFO kablam!   --> src/lib.rs:20:3
Sep 10 21:53:16.948 INFO kablam!    |
Sep 10 21:53:16.948 INFO kablam! 20 | #[experimental]
Sep 10 21:53:16.948 INFO kablam!    |   ^^^^^^^^^^^^
Sep 10 21:53:16.948 INFO kablam!    |
Sep 10 21:53:16.948 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 21:53:16.948 INFO kablam! 
Sep 10 21:53:16.950 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 10 21:53:16.950 INFO kablam!    --> src/lib.rs:196:3
Sep 10 21:53:16.950 INFO kablam!     |
Sep 10 21:53:16.950 INFO kablam! 196 | #[experimental]
Sep 10 21:53:16.950 INFO kablam!     |   ^^^^^^^^^^^^
Sep 10 21:53:16.950 INFO kablam!     |
Sep 10 21:53:16.950 INFO kablam!     = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 21:53:16.950 INFO kablam! 
Sep 10 21:53:17.042 INFO kablam! error: aborting due to 3 previous errors
Sep 10 21:53:17.042 INFO kablam! 
Sep 10 21:53:17.042 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 10 21:53:17.046 INFO kablam! error: Could not compile `buildable`.
Sep 10 21:53:17.046 INFO kablam! 
Sep 10 21:53:17.046 INFO kablam! To learn more, run the command again with --verbose.
Sep 10 21:53:17.046 INFO kablam! su: No module specific data is present
Sep 10 21:53:17.977 INFO running `"docker" "rm" "-f" "ee29148a647997a569169ea01b1d1b32ecc0d1dfe3b487a5fd653401d4ed8465"`
Sep 10 21:53:18.101 INFO blam! ee29148a647997a569169ea01b1d1b32ecc0d1dfe3b487a5fd653401d4ed8465