Aug 11 05:37:01.044 INFO checking pyo3-0.4.0 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 05:37:01.044 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 05:37:01.044 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 05:37:01.044 INFO running `"docker" "create" "-v" "/tmp/crater.nc6wSkMAMdg3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-4/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 05:37:01.284 INFO blam! 9b122ae425c098334a292e7dce1016631989402e2f1644da4216b724dad28f73
Aug 11 05:37:01.285 INFO running `"docker" "start" "-a" "9b122ae425c098334a292e7dce1016631989402e2f1644da4216b724dad28f73"`
Aug 11 05:37:02.348 INFO kablam!     Checking spin v0.4.8
Aug 11 05:37:02.357 INFO kablam!    Compiling mashup-impl v0.1.5
Aug 11 05:37:02.361 INFO kablam!    Compiling syn v0.14.7
Aug 11 05:37:02.362 INFO kablam!    Compiling pyo3 v0.4.0 (file:///source)
Aug 11 05:37:03.456 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 11 05:37:03.457 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:76
Aug 11 05:37:03.457 INFO kablam!   |
Aug 11 05:37:03.457 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 05:37:03.457 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 11 05:37:03.460 INFO kablam! 
Aug 11 05:37:03.461 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 05:37:03.461 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:53
Aug 11 05:37:03.461 INFO kablam!   |
Aug 11 05:37:03.461 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 11 05:37:03.461 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 05:37:03.461 INFO kablam! 
Aug 11 05:37:03.508 INFO kablam! error: aborting due to 2 previous errors
Aug 11 05:37:03.520 INFO kablam! 
Aug 11 05:37:03.521 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 05:37:03.549 INFO kablam! error: Could not compile `spin`.
Aug 11 05:37:03.550 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 05:37:52.025 INFO kablam! error: build failed
Aug 11 05:37:52.028 INFO kablam! su: No module specific data is present
Aug 11 05:37:52.581 INFO running `"docker" "rm" "-f" "9b122ae425c098334a292e7dce1016631989402e2f1644da4216b724dad28f73"`
Aug 11 05:37:52.742 INFO blam! 9b122ae425c098334a292e7dce1016631989402e2f1644da4216b724dad28f73