Aug 29 15:08:47.145 INFO checking souvik1997/kernel-roulette against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 29 15:08:47.145 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 29 15:08:47.145 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-0/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 29 15:08:47.382 INFO blam! 649ecd0b782f59e6346e6c7ca81ce957d029b802a54c9baef6ee570bb149cd3a
Aug 29 15:08:47.384 INFO running `"docker" "start" "-a" "649ecd0b782f59e6346e6c7ca81ce957d029b802a54c9baef6ee570bb149cd3a"`
Aug 29 15:08:48.312 INFO kablam!     Checking spin v0.4.7
Aug 29 15:08:48.321 INFO kablam!     Checking rand v0.4.2
Aug 29 15:08:48.727 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 29 15:08:48.727 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Aug 29 15:08:48.727 INFO kablam!   |
Aug 29 15:08:48.727 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 29 15:08:48.727 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 29 15:08:48.727 INFO kablam! 
Aug 29 15:08:48.727 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 29 15:08:48.727 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Aug 29 15:08:48.727 INFO kablam!   |
Aug 29 15:08:48.727 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 29 15:08:48.727 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 29 15:08:48.727 INFO kablam! 
Aug 29 15:08:48.747 INFO kablam! error: aborting due to 2 previous errors
Aug 29 15:08:48.747 INFO kablam! 
Aug 29 15:08:48.747 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 29 15:08:48.755 INFO kablam! error: Could not compile `spin`.
Aug 29 15:08:48.756 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 29 15:08:50.934 INFO kablam! error: build failed
Aug 29 15:08:50.936 INFO kablam! su: No module specific data is present
Aug 29 15:08:51.471 INFO running `"docker" "rm" "-f" "649ecd0b782f59e6346e6c7ca81ce957d029b802a54c9baef6ee570bb149cd3a"`
Aug 29 15:08:51.633 INFO blam! 649ecd0b782f59e6346e6c7ca81ce957d029b802a54c9baef6ee570bb149cd3a