Aug 29 16:27:04.957 INFO checking notbdu/rustbelt against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 29 16:27:04.957 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 29 16:27:04.957 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-0/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 29 16:27:05.202 INFO blam! b91aaa84762e02f542e5988b967addb10eab188f5d24de5e732d2fa466a6cff5
Aug 29 16:27:05.204 INFO running `"docker" "start" "-a" "b91aaa84762e02f542e5988b967addb10eab188f5d24de5e732d2fa466a6cff5"`
Aug 29 16:27:06.146 INFO kablam!     Checking bit_field v0.7.0
Aug 29 16:27:06.154 INFO kablam!     Checking bitflags v0.4.0
Aug 29 16:27:06.155 INFO kablam!     Checking rlibc v1.0.0
Aug 29 16:27:06.194 INFO kablam!     Checking volatile v0.1.0
Aug 29 16:27:06.195 INFO kablam!     Checking spin v0.4.6
Aug 29 16:27:06.514 INFO kablam!     Checking multiboot2 v0.1.0
Aug 29 16:27:07.027 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 29 16:27:07.027 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:76
Aug 29 16:27:07.027 INFO kablam!   |
Aug 29 16:27:07.027 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 29 16:27:07.027 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 29 16:27:07.027 INFO kablam! 
Aug 29 16:27:07.027 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 29 16:27:07.027 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:53
Aug 29 16:27:07.027 INFO kablam!   |
Aug 29 16:27:07.027 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 29 16:27:07.028 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 29 16:27:07.028 INFO kablam! 
Aug 29 16:27:07.064 INFO kablam! error: aborting due to 2 previous errors
Aug 29 16:27:07.064 INFO kablam! 
Aug 29 16:27:07.064 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 29 16:27:07.083 INFO kablam! error: Could not compile `spin`.
Aug 29 16:27:07.083 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 29 16:27:07.403 INFO kablam! error: build failed
Aug 29 16:27:07.405 INFO kablam! su: No module specific data is present
Aug 29 16:27:07.887 INFO running `"docker" "rm" "-f" "b91aaa84762e02f542e5988b967addb10eab188f5d24de5e732d2fa466a6cff5"`
Aug 29 16:27:08.035 INFO blam! b91aaa84762e02f542e5988b967addb10eab188f5d24de5e732d2fa466a6cff5