Sep 10 19:49:58.158 INFO checking efm32gg-stk3700-0.1.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 19:49:58.158 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 19:49:58.158 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-7/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 19:49:58.371 INFO blam! 01326f8f66cb1ec2656e52fa7342b32976bfae3f985f5641b15f7e530d3f2e11
Sep 10 19:49:58.373 INFO running `"docker" "start" "-a" "01326f8f66cb1ec2656e52fa7342b32976bfae3f985f5641b15f7e530d3f2e11"`
Sep 10 19:49:59.945 INFO kablam! usermod: no changes
Sep 10 19:50:00.086 INFO kablam!    Compiling cortex-m-rt v0.6.3
Sep 10 19:50:00.086 INFO kablam!     Checking efm32gg990 v0.1.2
Sep 10 19:50:00.086 INFO kablam!     Checking panic-semihosting v0.2.0
Sep 10 19:50:00.614 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 10 19:50:00.614 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Sep 10 19:50:00.614 INFO kablam!    |
Sep 10 19:50:00.614 INFO kablam! 67 | #[lang = "panic_fmt"]
Sep 10 19:50:00.614 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 10 19:50:00.614 INFO kablam! 
Sep 10 19:50:00.662 INFO kablam! error: aborting due to previous error
Sep 10 19:50:00.662 INFO kablam! 
Sep 10 19:50:00.662 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 10 19:50:00.674 INFO kablam! error: Could not compile `panic-semihosting`.
Sep 10 19:50:00.674 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 19:55:00.676 INFO error running command: process killed after not generating output for  300s
Sep 10 19:55:00.676 INFO running `"docker" "rm" "-f" "01326f8f66cb1ec2656e52fa7342b32976bfae3f985f5641b15f7e530d3f2e11"`
Sep 10 19:55:01.429 INFO blam! 01326f8f66cb1ec2656e52fa7342b32976bfae3f985f5641b15f7e530d3f2e11