Aug 11 01:00:23.504 INFO checking stm32f042-0.5.3 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 01:00:23.504 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 01:00:23.504 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 01:00:23.504 INFO running `"docker" "create" "-v" "/tmp/crater.RfPVEQezMT6i:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-1/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 01:00:23.763 INFO blam! 7b037bc57a1ac86f0446e582012dd7e9e506a3599aef1bdd3cc1605026cc24e6
Aug 11 01:00:23.767 INFO running `"docker" "start" "-a" "7b037bc57a1ac86f0446e582012dd7e9e506a3599aef1bdd3cc1605026cc24e6"`
Aug 11 01:00:24.891 INFO kablam!    Compiling cortex-m v0.3.1
Aug 11 01:00:24.892 INFO kablam!     Checking vcell v0.1.0
Aug 11 01:00:24.893 INFO kablam!     Checking aligned v0.1.2
Aug 11 01:00:24.895 INFO kablam!    Compiling cortex-m-rt v0.4.0
Aug 11 01:00:24.899 INFO kablam!     Checking bare-metal v0.1.2
Aug 11 01:00:24.900 INFO kablam!    Compiling cortex-m v0.4.3
Aug 11 01:00:24.900 INFO kablam!     Checking untagged-option v0.1.1
Aug 11 01:00:24.910 INFO kablam!     Checking r0 v0.2.2
Aug 11 01:00:25.577 INFO kablam!     Checking panic-abort v0.1.1
Aug 11 01:00:25.726 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 01:00:25.726 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 11 01:00:25.726 INFO kablam!   |
Aug 11 01:00:25.726 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 11 01:00:25.726 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 01:00:25.752 INFO kablam! 
Aug 11 01:00:25.755 INFO kablam! error: aborting due to previous error
Aug 11 01:00:25.755 INFO kablam! 
Aug 11 01:00:25.756 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 01:00:25.808 INFO kablam! error: Could not compile `bare-metal`.
Aug 11 01:00:25.808 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 01:00:26.072 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Aug 11 01:00:26.072 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.1.1/src/lib.rs:25:1
Aug 11 01:00:26.072 INFO kablam!    |
Aug 11 01:00:26.072 INFO kablam! 25 | #[lang = "panic_fmt"]
Aug 11 01:00:26.072 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Aug 11 01:00:26.072 INFO kablam! 
Aug 11 01:00:26.072 INFO kablam! error: aborting due to previous error
Aug 11 01:00:26.072 INFO kablam! 
Aug 11 01:00:26.072 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Aug 11 01:00:26.121 INFO kablam! error: Could not compile `panic-abort`.
Aug 11 01:00:26.121 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 01:00:28.138 INFO kablam! error: build failed
Aug 11 01:00:28.140 INFO kablam! su: No module specific data is present
Aug 11 01:00:28.690 INFO running `"docker" "rm" "-f" "7b037bc57a1ac86f0446e582012dd7e9e506a3599aef1bdd3cc1605026cc24e6"`
Aug 11 01:00:28.868 INFO blam! 7b037bc57a1ac86f0446e582012dd7e9e506a3599aef1bdd3cc1605026cc24e6