Aug 01 23:26:27.143 INFO checking rustc-ap-rustc_target-196.0.0 against 1.27.2 for lazy_static-1
Aug 01 23:26:27.143 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:26:27.143 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:26:27.143 INFO running `"docker" "create" "-v" "/tmp/crater.vRsWp3w09AJe:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 23:26:27.472 INFO blam! 5bea84f5a8e62eb732db7f6bafcdc74a39481f61b93a413a39bd1ccb77b28142
Aug 01 23:26:27.475 INFO running `"docker" "start" "-a" "5bea84f5a8e62eb732db7f6bafcdc74a39481f61b93a413a39bd1ccb77b28142"`
Aug 01 23:26:28.697 INFO kablam!    Compiling rustc-ap-rustc_target v196.0.0 (file:///source)
Aug 01 23:26:28.699 INFO kablam!     Checking rustc-ap-serialize v196.0.0
Aug 01 23:26:28.702 INFO kablam!     Checking rustc-ap-rustc_cratesio_shim v196.0.0
Aug 01 23:26:29.274 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:29.274 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-196.0.0/lib.rs:25:1
Aug 01 23:26:29.274 INFO kablam!    |
Aug 01 23:26:29.274 INFO kablam! 25 | #![feature(rustc_private, box_syntax)]
Aug 01 23:26:29.274 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:29.274 INFO kablam! 
Aug 01 23:26:29.274 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:29.274 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-196.0.0/lib.rs:26:1
Aug 01 23:26:29.274 INFO kablam!    |
Aug 01 23:26:29.274 INFO kablam! 26 | #![feature(core_intrinsics)]
Aug 01 23:26:29.274 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:29.274 INFO kablam! 
Aug 01 23:26:29.274 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:29.274 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-196.0.0/lib.rs:27:1
Aug 01 23:26:29.275 INFO kablam!    |
Aug 01 23:26:29.275 INFO kablam! 27 | #![feature(specialization)]
Aug 01 23:26:29.275 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:29.275 INFO kablam! 
Aug 01 23:26:29.275 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:29.275 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-196.0.0/lib.rs:28:1
Aug 01 23:26:29.275 INFO kablam!    |
Aug 01 23:26:29.275 INFO kablam! 28 | #![feature(never_type)]
Aug 01 23:26:29.275 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:29.275 INFO kablam! 
Aug 01 23:26:29.290 INFO kablam! error: aborting due to 4 previous errors
Aug 01 23:26:29.290 INFO kablam! 
Aug 01 23:26:29.290 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:26:29.309 INFO kablam! error: Could not compile `rustc-ap-serialize`.
Aug 01 23:26:29.309 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:26:29.607 INFO kablam! error: build failed
Aug 01 23:26:29.607 INFO kablam! su: No module specific data is present
Aug 01 23:26:30.127 INFO running `"docker" "rm" "-f" "5bea84f5a8e62eb732db7f6bafcdc74a39481f61b93a413a39bd1ccb77b28142"`
Aug 01 23:26:30.234 INFO blam! 5bea84f5a8e62eb732db7f6bafcdc74a39481f61b93a413a39bd1ccb77b28142