Aug 01 23:26:26.195 INFO checking rustc-ap-rustc_target-204.0.0 against 1.27.2 for lazy_static-1
Aug 01 23:26:26.195 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:26:26.195 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:26:26.195 INFO running `"docker" "create" "-v" "/tmp/crater.nFF1AWxnkOxW:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 23:26:26.507 INFO blam! 70a7a1a5ddcca1a8174661184f59057cf52abfd90156f2e263714855388f2e8a
Aug 01 23:26:26.514 INFO running `"docker" "start" "-a" "70a7a1a5ddcca1a8174661184f59057cf52abfd90156f2e263714855388f2e8a"`
Aug 01 23:26:27.739 INFO kablam!    Compiling rustc-ap-rustc_target v204.0.0 (file:///source)
Aug 01 23:26:27.739 INFO kablam!     Checking rustc-ap-serialize v204.0.0
Aug 01 23:26:27.740 INFO kablam!     Checking rustc-ap-rustc_cratesio_shim v204.0.0
Aug 01 23:26:28.356 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:28.356 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:25:1
Aug 01 23:26:28.356 INFO kablam!    |
Aug 01 23:26:28.356 INFO kablam! 25 | #![feature(rustc_private, box_syntax)]
Aug 01 23:26:28.356 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:28.356 INFO kablam! 
Aug 01 23:26:28.356 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:28.356 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:26:1
Aug 01 23:26:28.357 INFO kablam!    |
Aug 01 23:26:28.357 INFO kablam! 26 | #![feature(core_intrinsics)]
Aug 01 23:26:28.357 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:28.357 INFO kablam! 
Aug 01 23:26:28.357 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:28.357 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:27:1
Aug 01 23:26:28.357 INFO kablam!    |
Aug 01 23:26:28.357 INFO kablam! 27 | #![feature(specialization)]
Aug 01 23:26:28.357 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:28.357 INFO kablam! 
Aug 01 23:26:28.358 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:28.358 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:28:1
Aug 01 23:26:28.358 INFO kablam!    |
Aug 01 23:26:28.358 INFO kablam! 28 | #![feature(never_type)]
Aug 01 23:26:28.358 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:28.358 INFO kablam! 
Aug 01 23:26:28.373 INFO kablam! error: aborting due to 4 previous errors
Aug 01 23:26:28.373 INFO kablam! 
Aug 01 23:26:28.373 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:26:28.380 INFO kablam! error: Could not compile `rustc-ap-serialize`.
Aug 01 23:26:28.380 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:26:28.613 INFO kablam! error: build failed
Aug 01 23:26:28.615 INFO kablam! su: No module specific data is present
Aug 01 23:26:29.227 INFO running `"docker" "rm" "-f" "70a7a1a5ddcca1a8174661184f59057cf52abfd90156f2e263714855388f2e8a"`
Aug 01 23:26:29.380 INFO blam! 70a7a1a5ddcca1a8174661184f59057cf52abfd90156f2e263714855388f2e8a