Sep 01 22:02:54.559 INFO checking efm32gg-stk3700-0.1.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 22:02:54.559 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 22:02:54.559 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 22:02:54.752 INFO blam! 48550ea5e382bf40f643675f5c6aeb3af5c852d5b29d455af0071cfc1142ef23
Sep 01 22:02:54.752 INFO running `"docker" "start" "-a" "48550ea5e382bf40f643675f5c6aeb3af5c852d5b29d455af0071cfc1142ef23"`
Sep 01 22:02:55.400 INFO kablam!    Compiling cortex-m-semihosting v0.3.1
Sep 01 22:02:55.401 INFO kablam!    Compiling cortex-m-rt v0.5.3
Sep 01 22:02:55.402 INFO kablam!     Checking efm32gg990 v0.1.2
Sep 01 22:02:57.134 INFO kablam!     Checking panic-semihosting v0.2.0
Sep 01 22:02:57.498 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 01 22:02:57.498 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Sep 01 22:02:57.499 INFO kablam!    |
Sep 01 22:02:57.499 INFO kablam! 67 | #[lang = "panic_fmt"]
Sep 01 22:02:57.499 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 01 22:02:57.499 INFO kablam! 
Sep 01 22:02:57.527 INFO kablam! error: aborting due to previous error
Sep 01 22:02:57.527 INFO kablam! 
Sep 01 22:02:57.527 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 01 22:02:57.532 INFO kablam! error: Could not compile `panic-semihosting`.
Sep 01 22:02:57.533 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 22:04:07.154 INFO kablam! error: build failed
Sep 01 22:04:07.155 INFO kablam! su: No module specific data is present
Sep 01 22:04:07.586 INFO running `"docker" "rm" "-f" "48550ea5e382bf40f643675f5c6aeb3af5c852d5b29d455af0071cfc1142ef23"`
Sep 01 22:04:07.676 INFO blam! 48550ea5e382bf40f643675f5c6aeb3af5c852d5b29d455af0071cfc1142ef23