Sep 05 17:56:32.724 INFO checking notbdu/rustbelt against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 17:56:32.724 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 17:56:32.724 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 17:56:33.182 INFO blam! d679e5f8b691049006dbb1b6d782e74c2ec942668ccae0220c7227e7ebba505b
Sep 05 17:56:33.184 INFO running `"docker" "start" "-a" "d679e5f8b691049006dbb1b6d782e74c2ec942668ccae0220c7227e7ebba505b"`
Sep 05 17:56:34.645 INFO kablam! usermod: no changes
Sep 05 17:56:34.738 INFO kablam!     Checking bitflags v0.4.0
Sep 05 17:56:34.738 INFO kablam!     Checking bit_field v0.7.0
Sep 05 17:56:34.738 INFO kablam!     Checking spin v0.4.6
Sep 05 17:56:34.738 INFO kablam!     Checking rlibc v1.0.0
Sep 05 17:56:34.738 INFO kablam!     Checking volatile v0.1.0
Sep 05 17:56:35.142 INFO kablam!     Checking multiboot2 v0.1.0
Sep 05 17:56:35.380 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Sep 05 17:56:35.380 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:76
Sep 05 17:56:35.380 INFO kablam!   |
Sep 05 17:56:35.380 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 05 17:56:35.380 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Sep 05 17:56:35.380 INFO kablam! 
Sep 05 17:56:35.380 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 05 17:56:35.380 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:53
Sep 05 17:56:35.380 INFO kablam!   |
Sep 05 17:56:35.380 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Sep 05 17:56:35.380 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Sep 05 17:56:35.380 INFO kablam! 
Sep 05 17:56:35.398 INFO kablam! error: aborting due to 2 previous errors
Sep 05 17:56:35.398 INFO kablam! 
Sep 05 17:56:35.398 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 17:56:35.414 INFO kablam! error: Could not compile `spin`.
Sep 05 17:56:35.414 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 05 17:56:35.753 INFO kablam! error: build failed
Sep 05 17:56:35.753 INFO kablam! su: No module specific data is present
Sep 05 17:56:36.720 INFO running `"docker" "rm" "-f" "d679e5f8b691049006dbb1b6d782e74c2ec942668ccae0220c7227e7ebba505b"`
Sep 05 17:56:36.937 INFO blam! d679e5f8b691049006dbb1b6d782e74c2ec942668ccae0220c7227e7ebba505b