Aug 02 07:20:51.955 INFO checking heap-0.1.0 against 1.27.2 for lazy_static-1
Aug 02 07:20:51.955 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:20:51.955 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:20:51.955 INFO running `"docker" "create" "-v" "/tmp/crater.zB047cgaRGh6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 02 07:20:52.148 INFO blam! 79cca29ba817438bc48b29a69464607acc474d921b8556635fc270c853e0dccc
Aug 02 07:20:52.156 INFO running `"docker" "start" "-a" "79cca29ba817438bc48b29a69464607acc474d921b8556635fc270c853e0dccc"`
Aug 02 07:20:54.005 INFO kablam!     Checking heap v0.1.0 (file:///source)
Aug 02 07:20:54.006 INFO kablam!    Compiling quickcheck v0.4.1
Aug 02 07:20:57.593 INFO kablam!    Compiling quickcheck_macros v0.4.2
Aug 02 07:20:59.222 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:20:59.222 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/quickcheck_macros-0.4.2/src/lib.rs:8:1
Aug 02 07:20:59.222 INFO kablam!   |
Aug 02 07:20:59.222 INFO kablam! 8 | #![feature(plugin_registrar, rustc_private)]
Aug 02 07:20:59.222 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 07:20:59.222 INFO kablam! 
Aug 02 07:20:59.222 INFO kablam! error: aborting due to previous error
Aug 02 07:20:59.222 INFO kablam! 
Aug 02 07:20:59.222 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:20:59.239 INFO kablam! error: Could not compile `quickcheck_macros`.
Aug 02 07:20:59.239 INFO kablam! 
Aug 02 07:20:59.239 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 07:20:59.241 INFO kablam! su: No module specific data is present
Aug 02 07:20:59.784 INFO running `"docker" "rm" "-f" "79cca29ba817438bc48b29a69464607acc474d921b8556635fc270c853e0dccc"`
Aug 02 07:20:59.941 INFO blam! 79cca29ba817438bc48b29a69464607acc474d921b8556635fc270c853e0dccc