Sep 01 05:36:57.508 INFO checking efm32gg-stk3700-0.1.0 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Sep 01 05:36:57.508 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Sep 01 05:36:57.508 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-1/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 05:36:57.686 INFO blam! 984113bcd619c7c60a72fc6937a002002c38eb922f9305c1a5f18afa9cb20489
Sep 01 05:36:57.688 INFO running `"docker" "start" "-a" "984113bcd619c7c60a72fc6937a002002c38eb922f9305c1a5f18afa9cb20489"`
Sep 01 05:36:58.298 INFO kablam!    Compiling cortex-m-rt v0.5.3
Sep 01 05:36:58.299 INFO kablam!     Checking efm32gg990 v0.1.2
Sep 01 05:36:58.299 INFO kablam!     Checking panic-semihosting v0.2.0
Sep 01 05:36:58.698 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 01 05:36:58.698 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Sep 01 05:36:58.698 INFO kablam!    |
Sep 01 05:36:58.698 INFO kablam! 67 | #[lang = "panic_fmt"]
Sep 01 05:36:58.698 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 01 05:36:58.698 INFO kablam! 
Sep 01 05:36:58.698 INFO kablam! error: aborting due to previous error
Sep 01 05:36:58.698 INFO kablam! 
Sep 01 05:36:58.698 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 01 05:36:58.704 INFO kablam! error: Could not compile `panic-semihosting`.
Sep 01 05:36:58.704 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 05:38:15.195 INFO kablam! error: build failed
Sep 01 05:38:15.196 INFO kablam! su: No module specific data is present
Sep 01 05:38:15.562 INFO running `"docker" "rm" "-f" "984113bcd619c7c60a72fc6937a002002c38eb922f9305c1a5f18afa9cb20489"`
Sep 01 05:38:15.655 INFO blam! 984113bcd619c7c60a72fc6937a002002c38eb922f9305c1a5f18afa9cb20489