Sep 01 09:13:48.729 INFO checking buildable-0.0.5 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Sep 01 09:13:48.729 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Sep 01 09:13:48.729 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-3/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 09:13:48.874 INFO blam! 27895b14137d3e6bc6eaf126f8b2b2136c9b02c793b34a68eef5a52cbe9488f5
Sep 01 09:13:48.875 INFO running `"docker" "start" "-a" "27895b14137d3e6bc6eaf126f8b2b2136c9b02c793b34a68eef5a52cbe9488f5"`
Sep 01 09:13:49.417 INFO kablam!     Checking buildable v0.0.5 (file:///source)
Sep 01 09:13:49.468 INFO kablam! warning: unknown lint: `unstable`
Sep 01 09:13:49.468 INFO kablam!   --> src/lib.rs:12:10
Sep 01 09:13:49.468 INFO kablam!    |
Sep 01 09:13:49.468 INFO kablam! 12 | #![allow(unstable)]
Sep 01 09:13:49.468 INFO kablam!    |          ^^^^^^^^
Sep 01 09:13:49.468 INFO kablam!    |
Sep 01 09:13:49.468 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 01 09:13:49.468 INFO kablam! 
Sep 01 09:13:49.468 INFO kablam! warning: unknown lint: `unstable`
Sep 01 09:13:49.468 INFO kablam!   --> src/lib.rs:12:10
Sep 01 09:13:49.468 INFO kablam!    |
Sep 01 09:13:49.468 INFO kablam! 12 | #![allow(unstable)]
Sep 01 09:13:49.469 INFO kablam!    |          ^^^^^^^^
Sep 01 09:13:49.469 INFO kablam!    |
Sep 01 09:13:49.469 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 01 09:13:49.469 INFO kablam! 
Sep 01 09:13:49.469 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 01 09:13:49.469 INFO kablam!   --> src/lib.rs:11:4
Sep 01 09:13:49.469 INFO kablam!    |
Sep 01 09:13:49.469 INFO kablam! 11 | #![experimental]
Sep 01 09:13:49.469 INFO kablam!    |    ^^^^^^^^^^^^
Sep 01 09:13:49.469 INFO kablam!    |
Sep 01 09:13:49.469 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 09:13:49.469 INFO kablam! 
Sep 01 09:13:49.469 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 01 09:13:49.469 INFO kablam!   --> src/lib.rs:11:4
Sep 01 09:13:49.469 INFO kablam!    |
Sep 01 09:13:49.469 INFO kablam! 11 | #![experimental]
Sep 01 09:13:49.469 INFO kablam!    |    ^^^^^^^^^^^^
Sep 01 09:13:49.469 INFO kablam!    |
Sep 01 09:13:49.469 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 09:13:49.469 INFO kablam! 
Sep 01 09:13:49.946 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 01 09:13:49.946 INFO kablam!   --> src/lib.rs:20:3
Sep 01 09:13:49.946 INFO kablam!    |
Sep 01 09:13:49.946 INFO kablam! 20 | #[experimental]
Sep 01 09:13:49.946 INFO kablam!    |   ^^^^^^^^^^^^
Sep 01 09:13:49.947 INFO kablam!    |
Sep 01 09:13:49.947 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 09:13:49.947 INFO kablam! 
Sep 01 09:13:49.947 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 01 09:13:49.947 INFO kablam!    --> src/lib.rs:196:3
Sep 01 09:13:49.947 INFO kablam!     |
Sep 01 09:13:49.947 INFO kablam! 196 | #[experimental]
Sep 01 09:13:49.947 INFO kablam!     |   ^^^^^^^^^^^^
Sep 01 09:13:49.947 INFO kablam!     |
Sep 01 09:13:49.947 INFO kablam!     = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 09:13:49.947 INFO kablam! 
Sep 01 09:13:49.952 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 01 09:13:49.952 INFO kablam!   --> src/lib.rs:20:3
Sep 01 09:13:49.952 INFO kablam!    |
Sep 01 09:13:49.952 INFO kablam! 20 | #[experimental]
Sep 01 09:13:49.952 INFO kablam!    |   ^^^^^^^^^^^^
Sep 01 09:13:49.952 INFO kablam!    |
Sep 01 09:13:49.952 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 09:13:49.952 INFO kablam! 
Sep 01 09:13:49.953 INFO kablam! error: aborting due to 3 previous errors
Sep 01 09:13:49.954 INFO kablam! 
Sep 01 09:13:49.954 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 09:13:49.954 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 01 09:13:49.954 INFO kablam!    --> src/lib.rs:196:3
Sep 01 09:13:49.954 INFO kablam!     |
Sep 01 09:13:49.954 INFO kablam! 196 | #[experimental]
Sep 01 09:13:49.954 INFO kablam!     |   ^^^^^^^^^^^^
Sep 01 09:13:49.954 INFO kablam!     |
Sep 01 09:13:49.954 INFO kablam!     = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 09:13:49.954 INFO kablam! 
Sep 01 09:13:49.959 INFO kablam! error: Could not compile `buildable`.
Sep 01 09:13:49.959 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 09:13:49.985 INFO kablam! error: aborting due to 3 previous errors
Sep 01 09:13:49.985 INFO kablam! 
Sep 01 09:13:49.985 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 09:13:49.990 INFO kablam! error: Could not compile `buildable`.
Sep 01 09:13:49.990 INFO kablam! 
Sep 01 09:13:49.990 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 09:13:49.991 INFO kablam! su: No module specific data is present
Sep 01 09:13:50.457 INFO running `"docker" "rm" "-f" "27895b14137d3e6bc6eaf126f8b2b2136c9b02c793b34a68eef5a52cbe9488f5"`
Sep 01 09:13:50.548 INFO blam! 27895b14137d3e6bc6eaf126f8b2b2136c9b02c793b34a68eef5a52cbe9488f5