Sep 10 03:08:15.853 INFO checking notbdu/rustbelt against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 03:08:15.853 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 03:08:15.853 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 03:08:16.099 INFO blam! 523703e8b42477b4b6cd960b3ceb48e486297fec54b33cf22e58aa562e366070
Sep 10 03:08:16.101 INFO running `"docker" "start" "-a" "523703e8b42477b4b6cd960b3ceb48e486297fec54b33cf22e58aa562e366070"`
Sep 10 03:08:16.938 INFO kablam! usermod: no changes
Sep 10 03:08:17.014 INFO kablam!     Checking bitflags v0.4.0
Sep 10 03:08:17.014 INFO kablam!     Checking bit_field v0.7.0
Sep 10 03:08:17.014 INFO kablam!     Checking spin v0.4.6
Sep 10 03:08:17.018 INFO kablam!     Checking volatile v0.1.0
Sep 10 03:08:17.280 INFO kablam!     Checking multiboot2 v0.1.0
Sep 10 03:08:17.549 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 10 03:08:17.549 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:76
Sep 10 03:08:17.549 INFO kablam!   |
Sep 10 03:08:17.549 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 10 03:08:17.549 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 10 03:08:17.549 INFO kablam! 
Sep 10 03:08:17.549 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 10 03:08:17.549 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:53
Sep 10 03:08:17.549 INFO kablam!   |
Sep 10 03:08:17.549 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 10 03:08:17.549 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 10 03:08:17.549 INFO kablam! 
Sep 10 03:08:17.563 INFO kablam! error: aborting due to 2 previous errors
Sep 10 03:08:17.566 INFO kablam! 
Sep 10 03:08:17.566 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 10 03:08:17.572 INFO kablam! error: Could not compile `spin`.
Sep 10 03:08:17.572 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 03:08:17.704 INFO kablam! error: build failed
Sep 10 03:08:17.710 INFO kablam! su: No module specific data is present
Sep 10 03:08:18.560 INFO running `"docker" "rm" "-f" "523703e8b42477b4b6cd960b3ceb48e486297fec54b33cf22e58aa562e366070"`
Sep 10 03:08:18.698 INFO blam! 523703e8b42477b4b6cd960b3ceb48e486297fec54b33cf22e58aa562e366070