Aug 01 21:29:12.977 INFO checking standalone-proc-macro2-0.2.2 against 1.27.2+tmplazy for lazy_static-1
Aug 01 21:29:12.977 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:29:12.977 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:29:12.977 INFO running `"docker" "create" "-v" "/tmp/crater.CxPujdUX4vP8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+tmplazy:/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 21:29:13.202 INFO blam! 240390eba8859a0a75acd541383e7469fb4365c60e625b72fbf5f6322b823c3d
Aug 01 21:29:13.204 INFO running `"docker" "start" "-a" "240390eba8859a0a75acd541383e7469fb4365c60e625b72fbf5f6322b823c3d"`
Aug 01 21:29:14.399 INFO kablam!     Blocking waiting for file lock on the git checkouts
Aug 01 21:29:14.569 INFO kablam!     Checking rustc-ap-serialize v40.0.0
Aug 01 21:29:14.577 INFO kablam!    Compiling rustc-ap-syntax v40.0.0
Aug 01 21:29:14.580 INFO kablam!     Checking rustc-ap-rustc_cratesio_shim v40.0.0
Aug 01 21:29:14.583 INFO kablam!     Checking parking_lot_core v0.2.14
Aug 01 21:29:15.876 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:29:15.876 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/parking_lot_core-0.2.14/src/lib.rs:41:60
Aug 01 21:29:15.876 INFO kablam!    |
Aug 01 21:29:15.876 INFO kablam! 41 | #![cfg_attr(all(feature = "nightly", target_os = "linux"), feature(integer_atomics))]
Aug 01 21:29:15.876 INFO kablam!    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:29:15.876 INFO kablam! 
Aug 01 21:29:15.879 INFO kablam! error: aborting due to previous error
Aug 01 21:29:15.889 INFO kablam! 
Aug 01 21:29:15.890 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:29:15.929 INFO kablam! error: Could not compile `parking_lot_core`.
Aug 01 21:29:15.930 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:29:16.099 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:29:16.099 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-40.0.0/lib.rs:24:1
Aug 01 21:29:16.099 INFO kablam!    |
Aug 01 21:29:16.099 INFO kablam! 24 | #![feature(rustc_private, box_syntax)]
Aug 01 21:29:16.099 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:29:16.099 INFO kablam! 
Aug 01 21:29:16.100 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:29:16.100 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-40.0.0/lib.rs:25:1
Aug 01 21:29:16.100 INFO kablam!    |
Aug 01 21:29:16.100 INFO kablam! 25 | #![feature(core_intrinsics)]
Aug 01 21:29:16.100 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:29:16.100 INFO kablam! 
Aug 01 21:29:16.100 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:29:16.100 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-40.0.0/lib.rs:26:1
Aug 01 21:29:16.100 INFO kablam!    |
Aug 01 21:29:16.100 INFO kablam! 26 | #![feature(i128_type)]
Aug 01 21:29:16.100 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:29:16.101 INFO kablam! 
Aug 01 21:29:16.101 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:29:16.101 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-40.0.0/lib.rs:27:1
Aug 01 21:29:16.101 INFO kablam!    |
Aug 01 21:29:16.102 INFO kablam! 27 | #![feature(specialization)]
Aug 01 21:29:16.102 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:29:16.102 INFO kablam! 
Aug 01 21:29:16.121 INFO kablam! error: aborting due to 4 previous errors
Aug 01 21:29:16.122 INFO kablam! 
Aug 01 21:29:16.122 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:29:16.132 INFO kablam! error: Could not compile `rustc-ap-serialize`.
Aug 01 21:29:16.132 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:29:16.405 INFO kablam! error: build failed
Aug 01 21:29:16.407 INFO kablam! su: No module specific data is present
Aug 01 21:29:17.230 INFO running `"docker" "rm" "-f" "240390eba8859a0a75acd541383e7469fb4365c60e625b72fbf5f6322b823c3d"`
Aug 01 21:29:17.361 INFO blam! 240390eba8859a0a75acd541383e7469fb4365c60e625b72fbf5f6322b823c3d