Jul 12 10:31:23.490 INFO checking efm32gg-stk3700-0.1.0 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 12 10:31:23.490 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 10:31:23.490 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 10:31:23.490 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-5/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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 +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 10:31:23.756 INFO blam! c0c871cbddd1793af6313d0ba28601dc997dabb8888c55a09cf79fde28c7ddfb
Jul 12 10:31:23.757 INFO running `"docker" "start" "-a" "c0c871cbddd1793af6313d0ba28601dc997dabb8888c55a09cf79fde28c7ddfb"`
Jul 12 10:31:24.854 INFO kablam!    Compiling cortex-m-semihosting v0.3.0
Jul 12 10:31:24.856 INFO kablam!    Compiling cortex-m-rt v0.5.1
Jul 12 10:31:24.863 INFO kablam!     Checking efm32gg990 v0.1.2
Jul 12 10:31:30.375 INFO kablam!     Checking panic-semihosting v0.2.0
Jul 12 10:31:31.010 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Jul 12 10:31:31.011 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Jul 12 10:31:31.011 INFO kablam!    |
Jul 12 10:31:31.011 INFO kablam! 67 | #[lang = "panic_fmt"]
Jul 12 10:31:31.011 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Jul 12 10:31:31.022 INFO kablam! 
Jul 12 10:31:31.023 INFO kablam! error: aborting due to previous error
Jul 12 10:31:31.024 INFO kablam! 
Jul 12 10:31:31.024 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Jul 12 10:31:31.031 INFO kablam! error: Could not compile `panic-semihosting`.
Jul 12 10:31:31.031 INFO kablam! warning: build failed, waiting for other jobs to finish...
Jul 12 10:33:40.305 INFO kablam! error: build failed
Jul 12 10:33:40.307 INFO kablam! su: No module specific data is present
Jul 12 10:33:40.839 INFO running `"docker" "rm" "-f" "c0c871cbddd1793af6313d0ba28601dc997dabb8888c55a09cf79fde28c7ddfb"`
Jul 12 10:33:41.003 INFO blam! c0c871cbddd1793af6313d0ba28601dc997dabb8888c55a09cf79fde28c7ddfb