Sep 17 11:12:13.210 INFO checking souvik1997/kernel-roulette against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 17 11:12:13.210 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 17 11:12:13.210 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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 +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 11:12:13.721 INFO blam! 5581a7b223a0b24fbe49fdd6422766edd82c3f7231792820f398fcc55412acee
Sep 17 11:12:13.724 INFO running `"docker" "start" "-a" "5581a7b223a0b24fbe49fdd6422766edd82c3f7231792820f398fcc55412acee"`
Sep 17 11:12:17.195 INFO kablam! usermod: no changes
Sep 17 11:12:17.251 INFO kablam!     Checking spin v0.4.7
Sep 17 11:12:17.259 INFO kablam!     Checking rand v0.4.2
Sep 17 11:12:17.823 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 17 11:12:17.824 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:76
Sep 17 11:12:17.824 INFO kablam!   |
Sep 17 11:12:17.825 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 17 11:12:17.825 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 17 11:12:17.825 INFO kablam! 
Sep 17 11:12:17.826 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 17 11:12:17.826 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:53
Sep 17 11:12:17.827 INFO kablam!   |
Sep 17 11:12:17.827 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 17 11:12:17.827 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 17 11:12:17.828 INFO kablam! 
Sep 17 11:12:17.834 INFO kablam! error: aborting due to 2 previous errors
Sep 17 11:12:17.834 INFO kablam! 
Sep 17 11:12:17.835 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 17 11:12:17.851 INFO kablam! error: Could not compile `spin`.
Sep 17 11:12:17.852 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 17 11:12:18.880 INFO kablam! error: build failed
Sep 17 11:12:18.895 INFO kablam! su: No module specific data is present
Sep 17 11:12:20.303 INFO running `"docker" "rm" "-f" "5581a7b223a0b24fbe49fdd6422766edd82c3f7231792820f398fcc55412acee"`
Sep 17 11:12:20.643 INFO blam! 5581a7b223a0b24fbe49fdd6422766edd82c3f7231792820f398fcc55412acee