Aug 10 18:14:05.561 INFO checking phil-opp/blog_os against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 10 18:14:05.561 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 10 18:14:05.561 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 10 18:14:05.561 INFO running `"docker" "create" "-v" "/tmp/crater.cbcPY6QCu88D:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-6/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 10 18:14:05.839 INFO blam! 91ef3c6f519b36279285e300554925aacc699db5369d58f83b3e03ae85fa2b48
Aug 10 18:14:05.841 INFO running `"docker" "start" "-a" "91ef3c6f519b36279285e300554925aacc699db5369d58f83b3e03ae85fa2b48"`
Aug 10 18:14:06.731 INFO kablam!    Compiling version_check v0.1.4
Aug 10 18:14:06.731 INFO kablam!     Checking os_bootinfo v0.2.1
Aug 10 18:14:06.731 INFO kablam!     Checking usize_conversions v0.2.0
Aug 10 18:14:06.731 INFO kablam!     Checking bit_field v0.9.0
Aug 10 18:14:06.737 INFO kablam!     Checking bitflags v1.0.3
Aug 10 18:14:07.553 INFO kablam!     Checking ux v0.1.2
Aug 10 18:14:07.777 INFO kablam!     Checking spin v0.4.8
Aug 10 18:14:09.316 INFO kablam!     Checking volatile v0.2.4
Aug 10 18:14:10.124 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 10 18:14:10.124 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:76
Aug 10 18:14:10.124 INFO kablam!   |
Aug 10 18:14:10.124 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 10 18:14:10.124 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 10 18:14:10.124 INFO kablam! 
Aug 10 18:14:10.124 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 10 18:14:10.124 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:53
Aug 10 18:14:10.124 INFO kablam!   |
Aug 10 18:14:10.124 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 10 18:14:10.124 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 10 18:14:10.124 INFO kablam! 
Aug 10 18:14:10.259 INFO kablam! error: aborting due to 2 previous errors
Aug 10 18:14:10.259 INFO kablam! 
Aug 10 18:14:10.259 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 10 18:14:10.322 INFO kablam! error: Could not compile `spin`.
Aug 10 18:14:10.322 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 10 18:14:10.771 INFO kablam! error[E0635]: unknown feature `const_atomic_usize_new`
Aug 10 18:14:10.771 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:76
Aug 10 18:14:10.771 INFO kablam!   |
Aug 10 18:14:10.771 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 10 18:14:10.771 INFO kablam!   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
Aug 10 18:14:10.771 INFO kablam! 
Aug 10 18:14:10.771 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 10 18:14:10.772 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:53
Aug 10 18:14:10.772 INFO kablam!   |
Aug 10 18:14:10.772 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 10 18:14:10.772 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 10 18:14:10.772 INFO kablam! 
Aug 10 18:14:10.892 INFO kablam! error: aborting due to 2 previous errors
Aug 10 18:14:10.892 INFO kablam! 
Aug 10 18:14:10.892 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 10 18:14:10.918 INFO kablam! error: Could not compile `spin`.
Aug 10 18:14:10.918 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 10 18:14:50.765 INFO kablam! error: build failed
Aug 10 18:14:50.785 INFO kablam! su: No module specific data is present
Aug 10 18:14:51.340 INFO running `"docker" "rm" "-f" "91ef3c6f519b36279285e300554925aacc699db5369d58f83b3e03ae85fa2b48"`
Aug 10 18:14:51.543 INFO blam! 91ef3c6f519b36279285e300554925aacc699db5369d58f83b3e03ae85fa2b48