Aug 17 13:55:21.065 INFO checking racer-2.1.3 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 13:55:21.065 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 13:55:21.065 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 13:55:21.066 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-4/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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 +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 13:55:21.298 INFO blam! 58c7157229b3e4e975a71f0cafc6fca917e8448408b55cba1b5924ba135f81c0
Aug 17 13:55:21.301 INFO running `"docker" "start" "-a" "58c7157229b3e4e975a71f0cafc6fca917e8448408b55cba1b5924ba135f81c0"`
Aug 17 13:55:23.010 INFO kablam!     Checking rustc-ap-serialize v218.0.0
Aug 17 13:55:23.018 INFO kablam!     Checking rustc-ap-serialize v209.0.0
Aug 17 13:55:23.040 INFO kablam!    Compiling rustc-ap-rustc_target v218.0.0
Aug 17 13:55:23.043 INFO kablam!    Compiling rustc-ap-syntax v218.0.0
Aug 17 13:55:23.049 INFO kablam!    Compiling rustc-ap-rustc_target v209.0.0
Aug 17 13:55:23.053 INFO kablam!    Compiling rustc-ap-syntax v209.0.0
Aug 17 13:55:23.078 INFO kablam!     Checking rls-span v0.4.0
Aug 17 13:55:23.120 INFO kablam!     Checking rustc-ap-rustc_cratesio_shim v218.0.0
Aug 17 13:55:25.907 INFO kablam!     Checking ena v0.9.3
Aug 17 13:55:28.775 INFO kablam!     Checking rustc-ap-rustc_cratesio_shim v209.0.0
Aug 17 13:55:28.902 INFO kablam!     Checking crossbeam-epoch v0.3.1
Aug 17 13:55:28.985 INFO kablam!    Compiling derive_more v0.11.0
Aug 17 13:55:29.244 INFO kablam!     Checking cargo v0.28.0
Aug 17 13:55:34.587 INFO kablam!     Checking crossbeam-deque v0.2.0
Aug 17 13:55:36.423 INFO kablam!     Checking rustc-rayon-core v0.1.1
Aug 17 13:55:44.848 INFO kablam!     Checking rustc-rayon v0.1.1
Aug 17 13:56:29.261 INFO kablam!     Checking rustc-ap-rustc_data_structures v218.0.0
Aug 17 13:56:29.265 INFO kablam!     Checking rustc-ap-rustc_data_structures v209.0.0
Aug 17 13:56:41.297 INFO kablam!     Checking rustc-ap-arena v209.0.0
Aug 17 13:56:42.148 INFO kablam!     Checking rustc-ap-arena v218.0.0
Aug 17 13:56:44.725 INFO kablam!     Checking rustc-ap-syntax_pos v209.0.0
Aug 17 13:56:44.836 INFO kablam!     Checking rustc-ap-syntax_pos v218.0.0
Aug 17 13:56:53.088 INFO kablam!     Checking rustc-ap-rustc_errors v218.0.0
Aug 17 13:56:53.588 INFO kablam!     Checking rustc-ap-rustc_errors v209.0.0
Aug 17 13:57:51.179 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 17 13:57:51.179 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-syntax-209.0.0/lib.rs:24:27
Aug 17 13:57:51.179 INFO kablam!    |
Aug 17 13:57:51.179 INFO kablam! 24 | #![feature(rustc_private, const_atomic_usize_new)]
Aug 17 13:57:51.179 INFO kablam!    |                           ^^^^^^^^^^^^^^^^^^^^^^
Aug 17 13:57:51.179 INFO kablam! 
Aug 17 13:57:51.951 INFO kablam! error: aborting due to previous error
Aug 17 13:57:51.952 INFO kablam! 
Aug 17 13:57:51.952 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 13:57:51.965 INFO kablam! error: Could not compile `rustc-ap-syntax`.
Aug 17 13:57:51.965 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 13:57:55.536 INFO kablam! error: build failed
Aug 17 13:57:55.539 INFO kablam! su: No module specific data is present
Aug 17 13:57:56.070 INFO running `"docker" "rm" "-f" "58c7157229b3e4e975a71f0cafc6fca917e8448408b55cba1b5924ba135f81c0"`
Aug 17 13:57:56.245 INFO blam! 58c7157229b3e4e975a71f0cafc6fca917e8448408b55cba1b5924ba135f81c0