Aug 11 19:39:51.483 INFO checking atsam4lc8c-0.1.1 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 19:39:51.483 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 19:39:51.483 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 19:39:51.483 INFO running `"docker" "create" "-v" "/tmp/crater.wR6tprNNFxFf:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-7/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 19:39:51.716 INFO blam! c02bba1db23f13f0176a9e6851fb771352a222cfcf9b62520c90dd836d740f8a
Aug 11 19:39:51.720 INFO running `"docker" "start" "-a" "c02bba1db23f13f0176a9e6851fb771352a222cfcf9b62520c90dd836d740f8a"`
Aug 11 19:39:54.219 INFO kablam!    Compiling atsam4lc8c v0.1.1 (file:///source)
Aug 11 19:39:54.220 INFO kablam!    Compiling cortex-m-semihosting v0.3.0
Aug 11 19:39:54.221 INFO kablam!    Compiling cortex-m-rt v0.5.1
Aug 11 19:39:55.382 INFO kablam!     Checking panic-semihosting v0.2.0
Aug 11 19:39:55.384 INFO kablam!     Checking cortex-m-log v0.2.0
Aug 11 19:39:55.644 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Aug 11 19:39:55.644 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Aug 11 19:39:55.644 INFO kablam!    |
Aug 11 19:39:55.644 INFO kablam! 67 | #[lang = "panic_fmt"]
Aug 11 19:39:55.644 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Aug 11 19:39:55.644 INFO kablam! 
Aug 11 19:39:55.645 INFO kablam! error: aborting due to previous error
Aug 11 19:39:55.645 INFO kablam! 
Aug 11 19:39:55.645 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Aug 11 19:39:55.649 INFO kablam! error: Could not compile `panic-semihosting`.
Aug 11 19:39:55.649 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 19:41:25.340 INFO kablam! error: build failed
Aug 11 19:41:25.341 INFO kablam! su: No module specific data is present
Aug 11 19:41:26.671 INFO running `"docker" "rm" "-f" "c02bba1db23f13f0176a9e6851fb771352a222cfcf9b62520c90dd836d740f8a"`
Aug 11 19:41:26.805 INFO blam! c02bba1db23f13f0176a9e6851fb771352a222cfcf9b62520c90dd836d740f8a