Sep 05 17:11:58.576 INFO checking souvik1997/kernel-roulette against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 17:11:58.576 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 17:11:58.576 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 17:11:59.024 INFO blam! 242053cdbc9b75f8bb7059e1df132bff20bc24e69c637f517913f17f84b12e1b
Sep 05 17:11:59.024 INFO running `"docker" "start" "-a" "242053cdbc9b75f8bb7059e1df132bff20bc24e69c637f517913f17f84b12e1b"`
Sep 05 17:12:01.337 INFO kablam! usermod: no changes
Sep 05 17:12:01.418 INFO kablam!     Checking spin v0.4.7
Sep 05 17:12:01.422 INFO kablam!     Checking rand v0.4.2
Sep 05 17:12:01.793 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 05 17:12:01.793 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 05 17:12:01.793 INFO kablam!   |
Sep 05 17:12:01.793 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 05 17:12:01.793 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 05 17:12:01.793 INFO kablam! 
Sep 05 17:12:01.794 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 05 17:12:01.794 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 05 17:12:01.794 INFO kablam!   |
Sep 05 17:12:01.794 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 05 17:12:01.794 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 05 17:12:01.794 INFO kablam! 
Sep 05 17:12:01.825 INFO kablam! error: aborting due to 2 previous errors
Sep 05 17:12:01.825 INFO kablam! 
Sep 05 17:12:01.825 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 17:12:01.846 INFO kablam! error: Could not compile `spin`.
Sep 05 17:12:01.854 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 05 17:12:02.850 INFO kablam! error: build failed
Sep 05 17:12:02.850 INFO kablam! su: No module specific data is present
Sep 05 17:12:04.334 INFO running `"docker" "rm" "-f" "242053cdbc9b75f8bb7059e1df132bff20bc24e69c637f517913f17f84b12e1b"`
Sep 05 17:12:04.701 INFO blam! 242053cdbc9b75f8bb7059e1df132bff20bc24e69c637f517913f17f84b12e1b