Aug 11 17:23:03.845 INFO checking concurrent-0.2.2 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 17:23:03.845 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 17:23:03.845 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 17:23:03.845 INFO running `"docker" "create" "-v" "/tmp/crater.NSCXs5wcG10m:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-0/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 17:23:04.085 INFO blam! e9da9de69d9c4789b1bc017718d2ceb0a1e71ebb1a0c1de7a0d808c0f59d5ad4
Aug 11 17:23:04.087 INFO running `"docker" "start" "-a" "e9da9de69d9c4789b1bc017718d2ceb0a1e71ebb1a0c1de7a0d808c0f59d5ad4"`
Aug 11 17:23:05.633 INFO kablam!     Checking spin v0.4.8
Aug 11 17:23:06.008 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 11 17:23:06.008 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:76
Aug 11 17:23:06.008 INFO kablam!   |
Aug 11 17:23:06.008 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 17:23:06.008 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 11 17:23:06.008 INFO kablam! 
Aug 11 17:23:06.009 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 17:23:06.009 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:53
Aug 11 17:23:06.009 INFO kablam!   |
Aug 11 17:23:06.009 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 17:23:06.009 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 17:23:06.009 INFO kablam! 
Aug 11 17:23:06.028 INFO kablam! error: aborting due to 2 previous errors
Aug 11 17:23:06.028 INFO kablam! 
Aug 11 17:23:06.029 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 17:23:06.037 INFO kablam! error: Could not compile `spin`.
Aug 11 17:23:06.037 INFO kablam! 
Aug 11 17:23:06.037 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 17:23:06.045 INFO kablam! su: No module specific data is present
Aug 11 17:23:07.008 INFO running `"docker" "rm" "-f" "e9da9de69d9c4789b1bc017718d2ceb0a1e71ebb1a0c1de7a0d808c0f59d5ad4"`
Aug 11 17:23:07.165 INFO blam! e9da9de69d9c4789b1bc017718d2ceb0a1e71ebb1a0c1de7a0d808c0f59d5ad4