Aug 17 09:24:19.130 INFO checking stm32f303xe-0.1.0 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 09:24:19.131 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 09:24:19.131 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 09:24:19.131 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-4/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 09:24:19.394 INFO blam! 7f99e09a10261ea0363f0b00719290718c996da2eee8c287bdb7282618513da0
Aug 17 09:24:19.399 INFO running `"docker" "start" "-a" "7f99e09a10261ea0363f0b00719290718c996da2eee8c287bdb7282618513da0"`
Aug 17 09:24:20.575 INFO kablam!     Checking vcell v0.1.0
Aug 17 09:24:20.575 INFO kablam!    Compiling cortex-m v0.4.3
Aug 17 09:24:20.577 INFO kablam!     Checking untagged-option v0.1.1
Aug 17 09:24:20.577 INFO kablam!     Checking aligned v0.1.2
Aug 17 09:24:20.577 INFO kablam!     Checking bare-metal v0.1.2
Aug 17 09:24:21.293 INFO kablam!     Checking volatile-register v0.2.0
Aug 17 09:24:21.440 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 09:24:21.440 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 17 09:24:21.440 INFO kablam!   |
Aug 17 09:24:21.440 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 17 09:24:21.440 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 17 09:24:21.454 INFO kablam! 
Aug 17 09:24:21.456 INFO kablam! error: aborting due to previous error
Aug 17 09:24:21.456 INFO kablam! 
Aug 17 09:24:21.456 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 09:24:21.483 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 09:24:21.483 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 09:24:24.098 INFO kablam! error: build failed
Aug 17 09:24:24.105 INFO kablam! su: No module specific data is present
Aug 17 09:24:24.583 INFO running `"docker" "rm" "-f" "7f99e09a10261ea0363f0b00719290718c996da2eee8c287bdb7282618513da0"`
Aug 17 09:24:24.756 INFO blam! 7f99e09a10261ea0363f0b00719290718c996da2eee8c287bdb7282618513da0