Aug 11 01:46:32.956 INFO checking slab_allocator-0.3.3 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 01:46:32.956 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 01:46:32.956 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 01:46:32.956 INFO running `"docker" "create" "-v" "/tmp/crater.mIR8NbEgsWSO:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-7/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 01:46:33.211 INFO blam! 301b25bad361521d9098061d131b46904341baf88cbdcd9592b6d3836157e710
Aug 11 01:46:33.214 INFO running `"docker" "start" "-a" "301b25bad361521d9098061d131b46904341baf88cbdcd9592b6d3836157e710"`
Aug 11 01:46:34.178 INFO kablam!     Checking spin v0.4.8
Aug 11 01:46:34.476 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 11 01:46:34.476 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:76
Aug 11 01:46:34.476 INFO kablam!   |
Aug 11 01:46:34.476 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 01:46:34.476 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 11 01:46:34.476 INFO kablam! 
Aug 11 01:46:34.476 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 01:46:34.476 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:53
Aug 11 01:46:34.476 INFO kablam!   |
Aug 11 01:46:34.476 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 01:46:34.477 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 01:46:34.477 INFO kablam! 
Aug 11 01:46:34.494 INFO kablam! error: aborting due to 2 previous errors
Aug 11 01:46:34.495 INFO kablam! 
Aug 11 01:46:34.495 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 01:46:34.501 INFO kablam! error: Could not compile `spin`.
Aug 11 01:46:34.501 INFO kablam! 
Aug 11 01:46:34.501 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 01:46:34.502 INFO kablam! su: No module specific data is present
Aug 11 01:46:35.160 INFO running `"docker" "rm" "-f" "301b25bad361521d9098061d131b46904341baf88cbdcd9592b6d3836157e710"`
Aug 11 01:46:35.316 INFO blam! 301b25bad361521d9098061d131b46904341baf88cbdcd9592b6d3836157e710