Aug 11 05:36:58.719 INFO checking pyo3-0.4.0 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 05:36:58.719 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 05:36:58.719 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 05:36:58.719 INFO running `"docker" "create" "-v" "/tmp/crater.r7piuX5PXRv9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-7/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 05:36:58.962 INFO blam! 813f1d755834f9bfcb2b9188b01122fea9b20f4f7b889ddb69eff2eb4b26ae4d
Aug 11 05:36:58.964 INFO running `"docker" "start" "-a" "813f1d755834f9bfcb2b9188b01122fea9b20f4f7b889ddb69eff2eb4b26ae4d"`
Aug 11 05:37:00.023 INFO kablam!     Checking spin v0.4.8
Aug 11 05:37:00.029 INFO kablam!    Compiling mashup-impl v0.1.5
Aug 11 05:37:00.029 INFO kablam!    Compiling syn v0.14.7
Aug 11 05:37:00.030 INFO kablam!    Compiling pyo3 v0.4.0 (file:///source)
Aug 11 05:37:00.967 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 11 05:37:00.967 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:76
Aug 11 05:37:00.967 INFO kablam!   |
Aug 11 05:37:00.967 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 05:37:00.967 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 11 05:37:00.967 INFO kablam! 
Aug 11 05:37:00.967 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 05:37:00.967 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:53
Aug 11 05:37:00.967 INFO kablam!   |
Aug 11 05:37:00.967 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 05:37:00.967 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 05:37:00.967 INFO kablam! 
Aug 11 05:37:01.044 INFO kablam! error: aborting due to 2 previous errors
Aug 11 05:37:01.044 INFO kablam! 
Aug 11 05:37:01.044 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 05:37:01.048 INFO kablam! error: Could not compile `spin`.
Aug 11 05:37:01.049 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 05:37:49.887 INFO kablam! error: build failed
Aug 11 05:37:49.889 INFO kablam! su: No module specific data is present
Aug 11 05:37:50.401 INFO running `"docker" "rm" "-f" "813f1d755834f9bfcb2b9188b01122fea9b20f4f7b889ddb69eff2eb4b26ae4d"`
Aug 11 05:37:50.559 INFO blam! 813f1d755834f9bfcb2b9188b01122fea9b20f4f7b889ddb69eff2eb4b26ae4d