Aug 11 00:56:46.831 INFO checking stm32f30x-hal-0.1.2 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 00:56:46.832 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 00:56:46.832 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 00:56:46.832 INFO running `"docker" "create" "-v" "/tmp/crater.7PuIvO8bPQG1:/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 00:56:47.086 INFO blam! a84377df98526e2aa61c5adca4d250fe96ca2c1409bb3383281e357644ebbe4b
Aug 11 00:56:47.089 INFO running `"docker" "start" "-a" "a84377df98526e2aa61c5adca4d250fe96ca2c1409bb3383281e357644ebbe4b"`
Aug 11 00:56:48.468 INFO kablam!     Checking bare-metal v0.1.2
Aug 11 00:56:48.472 INFO kablam!     Checking cast v0.2.2
Aug 11 00:56:48.799 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 00:56:48.799 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 11 00:56:48.799 INFO kablam!   |
Aug 11 00:56:48.799 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 11 00:56:48.799 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 00:56:48.808 INFO kablam! 
Aug 11 00:56:48.810 INFO kablam! error: aborting due to previous error
Aug 11 00:56:48.811 INFO kablam! 
Aug 11 00:56:48.811 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 00:56:48.829 INFO kablam! error: Could not compile `bare-metal`.
Aug 11 00:56:48.829 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 00:56:49.429 INFO kablam! error: build failed
Aug 11 00:56:49.434 INFO kablam! su: No module specific data is present
Aug 11 00:56:50.299 INFO running `"docker" "rm" "-f" "a84377df98526e2aa61c5adca4d250fe96ca2c1409bb3383281e357644ebbe4b"`
Aug 11 00:56:50.483 INFO blam! a84377df98526e2aa61c5adca4d250fe96ca2c1409bb3383281e357644ebbe4b