Aug 01 23:26:43.270 INFO checking rustc-ap-arena-204.0.0 against 1.27.2 for lazy_static-1
Aug 01 23:26:43.270 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:26:43.270 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:26:43.270 INFO running `"docker" "create" "-v" "/tmp/crater.MLYkFzwAh1F1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 23:26:43.531 INFO blam! cfd44c38d8347784bea36420ce8f9d9be1a290174831c5f2d01189e122dc7251
Aug 01 23:26:43.532 INFO running `"docker" "start" "-a" "cfd44c38d8347784bea36420ce8f9d9be1a290174831c5f2d01189e122dc7251"`
Aug 01 23:26:45.030 INFO kablam!    Compiling rustc-rayon-core v0.1.1
Aug 01 23:26:45.037 INFO kablam!     Checking rustc-ap-serialize v204.0.0
Aug 01 23:26:45.040 INFO kablam!     Checking rustc-ap-rustc_cratesio_shim v204.0.0
Aug 01 23:26:45.044 INFO kablam!     Checking ena v0.9.3
Aug 01 23:26:45.044 INFO kablam!     Checking parking_lot_core v0.2.14
Aug 01 23:26:46.139 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:46.139 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/parking_lot_core-0.2.14/src/lib.rs:41:60
Aug 01 23:26:46.139 INFO kablam!    |
Aug 01 23:26:46.139 INFO kablam! 41 | #![cfg_attr(all(feature = "nightly", target_os = "linux"), feature(integer_atomics))]
Aug 01 23:26:46.139 INFO kablam!    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:46.139 INFO kablam! 
Aug 01 23:26:46.143 INFO kablam! error: aborting due to previous error
Aug 01 23:26:46.143 INFO kablam! 
Aug 01 23:26:46.143 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:26:46.152 INFO kablam! error: Could not compile `parking_lot_core`.
Aug 01 23:26:46.153 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:26:46.274 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:46.274 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:25:1
Aug 01 23:26:46.274 INFO kablam!    |
Aug 01 23:26:46.274 INFO kablam! 25 | #![feature(rustc_private, box_syntax)]
Aug 01 23:26:46.274 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:46.274 INFO kablam! 
Aug 01 23:26:46.274 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:46.274 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:26:1
Aug 01 23:26:46.274 INFO kablam!    |
Aug 01 23:26:46.274 INFO kablam! 26 | #![feature(core_intrinsics)]
Aug 01 23:26:46.274 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:46.274 INFO kablam! 
Aug 01 23:26:46.274 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:46.274 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:27:1
Aug 01 23:26:46.274 INFO kablam!    |
Aug 01 23:26:46.275 INFO kablam! 27 | #![feature(specialization)]
Aug 01 23:26:46.275 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:46.275 INFO kablam! 
Aug 01 23:26:46.276 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:26:46.276 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-204.0.0/lib.rs:28:1
Aug 01 23:26:46.276 INFO kablam!    |
Aug 01 23:26:46.276 INFO kablam! 28 | #![feature(never_type)]
Aug 01 23:26:46.277 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:26:46.277 INFO kablam! 
Aug 01 23:26:46.304 INFO kablam! error: aborting due to 4 previous errors
Aug 01 23:26:46.304 INFO kablam! 
Aug 01 23:26:46.305 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:26:46.315 INFO kablam! error: Could not compile `rustc-ap-serialize`.
Aug 01 23:26:46.315 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:26:46.812 INFO kablam! error: build failed
Aug 01 23:26:46.813 INFO kablam! su: No module specific data is present
Aug 01 23:26:48.251 INFO running `"docker" "rm" "-f" "cfd44c38d8347784bea36420ce8f9d9be1a290174831c5f2d01189e122dc7251"`
Aug 01 23:26:48.410 INFO blam! cfd44c38d8347784bea36420ce8f9d9be1a290174831c5f2d01189e122dc7251