Aug 11 17:23:23.479 INFO checking conc-0.5.0 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 17:23:23.479 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 17:23:23.479 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 17:23:23.479 INFO running `"docker" "create" "-v" "/tmp/crater.uCoDqMFcHAp5:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-5/try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy:/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 +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 17:23:23.728 INFO blam! 4c0bdeaee16eef98d6575540d2ee283e8402077a0ee5690250fa3c2b5615bb2c
Aug 11 17:23:23.729 INFO running `"docker" "start" "-a" "4c0bdeaee16eef98d6575540d2ee283e8402077a0ee5690250fa3c2b5615bb2c"`
Aug 11 17:23:25.216 INFO kablam!     Checking spin v0.4.8
Aug 11 17:23:25.642 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 11 17:23:25.642 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:76
Aug 11 17:23:25.642 INFO kablam!   |
Aug 11 17:23:25.642 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 17:23:25.642 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 11 17:23:25.643 INFO kablam! 
Aug 11 17:23:25.643 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 17:23:25.643 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:53
Aug 11 17:23:25.643 INFO kablam!   |
Aug 11 17:23:25.643 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 17:23:25.643 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 17:23:25.643 INFO kablam! 
Aug 11 17:23:25.661 INFO kablam! error: aborting due to 2 previous errors
Aug 11 17:23:25.661 INFO kablam! 
Aug 11 17:23:25.661 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 17:23:25.682 INFO kablam! error: Could not compile `spin`.
Aug 11 17:23:25.682 INFO kablam! 
Aug 11 17:23:25.682 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 17:23:25.683 INFO kablam! su: No module specific data is present
Aug 11 17:23:26.475 INFO running `"docker" "rm" "-f" "4c0bdeaee16eef98d6575540d2ee283e8402077a0ee5690250fa3c2b5615bb2c"`
Aug 11 17:23:26.635 INFO blam! 4c0bdeaee16eef98d6575540d2ee283e8402077a0ee5690250fa3c2b5615bb2c