Sep 14 17:12:47.596 INFO checking efm32gg-stk3700-0.1.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 17:12:47.596 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 17:12:47.597 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-2/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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=1000" "-e" "CMD=cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 17:12:47.930 INFO blam! b23629795be3910678104d2adcfdf03a09c8e7e94ec86b9ab6ecfce09806dc48
Sep 14 17:12:47.939 INFO running `"docker" "start" "-a" "b23629795be3910678104d2adcfdf03a09c8e7e94ec86b9ab6ecfce09806dc48"`
Sep 14 17:12:49.478 INFO kablam! usermod: no changes
Sep 14 17:12:49.652 INFO kablam!    Compiling rand_core v0.2.1
Sep 14 17:12:49.652 INFO kablam!    Compiling cortex-m-semihosting v0.3.1
Sep 14 17:12:49.652 INFO kablam!    Compiling cortex-m-rt v0.6.3
Sep 14 17:12:49.659 INFO kablam!     Checking efm32gg990 v0.1.2
Sep 14 17:12:50.950 INFO kablam!    Compiling rand v0.5.5
Sep 14 17:12:53.301 INFO kablam!     Checking panic-semihosting v0.2.0
Sep 14 17:12:53.896 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 14 17:12:53.896 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Sep 14 17:12:53.896 INFO kablam!    |
Sep 14 17:12:53.896 INFO kablam! 67 | #[lang = "panic_fmt"]
Sep 14 17:12:53.896 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 14 17:12:53.896 INFO kablam! 
Sep 14 17:12:53.925 INFO kablam! error: aborting due to previous error
Sep 14 17:12:53.925 INFO kablam! 
Sep 14 17:12:53.925 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 14 17:12:53.960 INFO kablam! error: Could not compile `panic-semihosting`.
Sep 14 17:12:53.960 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 14 17:13:51.524 INFO kablam! error: build failed
Sep 14 17:13:51.526 INFO kablam! su: No module specific data is present
Sep 14 17:13:52.203 INFO running `"docker" "rm" "-f" "b23629795be3910678104d2adcfdf03a09c8e7e94ec86b9ab6ecfce09806dc48"`
Sep 14 17:13:52.289 INFO blam! b23629795be3910678104d2adcfdf03a09c8e7e94ec86b9ab6ecfce09806dc48