Aug 31 21:11:45.807 INFO checking notbdu/rustbelt against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Aug 31 21:11:45.807 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Aug 31 21:11:45.807 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 21:11:45.938 INFO blam! 6bb289d4dc851cbb28c8b032ce4adad617a2b9ff63b4d4cf26bf5a7e03f7f5cb
Aug 31 21:11:45.940 INFO running `"docker" "start" "-a" "6bb289d4dc851cbb28c8b032ce4adad617a2b9ff63b4d4cf26bf5a7e03f7f5cb"`
Aug 31 21:11:46.712 INFO kablam!     Checking bit_field v0.7.0
Aug 31 21:11:46.713 INFO kablam!     Checking bitflags v0.4.0
Aug 31 21:11:46.713 INFO kablam!     Checking rlibc v1.0.0
Aug 31 21:11:46.714 INFO kablam!     Checking volatile v0.1.0
Aug 31 21:11:46.714 INFO kablam!     Checking spin v0.4.6
Aug 31 21:11:46.827 INFO kablam!     Checking multiboot2 v0.1.0
Aug 31 21:11:47.148 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 31 21:11:47.148 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:76
Aug 31 21:11:47.148 INFO kablam!   |
Aug 31 21:11:47.148 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 31 21:11:47.148 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 31 21:11:47.148 INFO kablam! 
Aug 31 21:11:47.148 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 31 21:11:47.148 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:53
Aug 31 21:11:47.148 INFO kablam!   |
Aug 31 21:11:47.148 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 31 21:11:47.148 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 31 21:11:47.148 INFO kablam! 
Aug 31 21:11:47.173 INFO kablam! error: aborting due to 2 previous errors
Aug 31 21:11:47.176 INFO kablam! 
Aug 31 21:11:47.177 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 31 21:11:47.184 INFO kablam! error: Could not compile `spin`.
Aug 31 21:11:47.184 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 31 21:11:47.244 INFO kablam! error: build failed
Aug 31 21:11:47.249 INFO kablam! su: No module specific data is present
Aug 31 21:11:47.914 INFO running `"docker" "rm" "-f" "6bb289d4dc851cbb28c8b032ce4adad617a2b9ff63b4d4cf26bf5a7e03f7f5cb"`
Aug 31 21:11:48.082 INFO blam! 6bb289d4dc851cbb28c8b032ce4adad617a2b9ff63b4d4cf26bf5a7e03f7f5cb