Aug 31 02:18:24.458 INFO checking souvik1997/kernel-roulette against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 02:18:24.459 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 02:18:24.459 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-3/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 02:18:24.694 INFO blam! 74ad329b353b759e1f9fddc7edc100089e88813c5cb9f651d35963ce7c297054
Aug 31 02:18:24.696 INFO running `"docker" "start" "-a" "74ad329b353b759e1f9fddc7edc100089e88813c5cb9f651d35963ce7c297054"`
Aug 31 02:18:25.627 INFO kablam!     Checking spin v0.4.7
Aug 31 02:18:25.635 INFO kablam!     Checking rand v0.4.2
Aug 31 02:18:26.036 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 31 02:18:26.036 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Aug 31 02:18:26.037 INFO kablam!   |
Aug 31 02:18:26.037 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 31 02:18:26.037 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 31 02:18:26.037 INFO kablam! 
Aug 31 02:18:26.037 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 31 02:18:26.037 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Aug 31 02:18:26.037 INFO kablam!   |
Aug 31 02:18:26.037 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 31 02:18:26.037 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 31 02:18:26.037 INFO kablam! 
Aug 31 02:18:26.057 INFO kablam! error: aborting due to 2 previous errors
Aug 31 02:18:26.057 INFO kablam! 
Aug 31 02:18:26.057 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 31 02:18:26.064 INFO kablam! error: Could not compile `spin`.
Aug 31 02:18:26.064 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 31 02:18:28.104 INFO kablam! error: build failed
Aug 31 02:18:28.106 INFO kablam! su: No module specific data is present
Aug 31 02:18:28.635 INFO running `"docker" "rm" "-f" "74ad329b353b759e1f9fddc7edc100089e88813c5cb9f651d35963ce7c297054"`
Aug 31 02:18:28.795 INFO blam! 74ad329b353b759e1f9fddc7edc100089e88813c5cb9f651d35963ce7c297054