Sep 02 15:40:55.025 INFO checking efm32gg-stk3700-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 15:40:55.025 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 15:40:55.025 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 15:40:55.194 INFO blam! 462034c9fb94687e987b1935e6f3413038538317ffe756d25feaa8f99dec9ae3
Sep 02 15:40:55.196 INFO running `"docker" "start" "-a" "462034c9fb94687e987b1935e6f3413038538317ffe756d25feaa8f99dec9ae3"`
Sep 02 15:40:55.838 INFO kablam!    Compiling cortex-m-rt v0.5.3
Sep 02 15:40:55.839 INFO kablam!     Checking efm32gg990 v0.1.2
Sep 02 15:40:55.839 INFO kablam!     Checking panic-semihosting v0.2.0
Sep 02 15:40:56.218 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 02 15:40:56.218 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Sep 02 15:40:56.218 INFO kablam!    |
Sep 02 15:40:56.218 INFO kablam! 67 | #[lang = "panic_fmt"]
Sep 02 15:40:56.218 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 02 15:40:56.218 INFO kablam! 
Sep 02 15:40:56.251 INFO kablam! error: aborting due to previous error
Sep 02 15:40:56.251 INFO kablam! 
Sep 02 15:40:56.251 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 02 15:40:56.257 INFO kablam! error: Could not compile `panic-semihosting`.
Sep 02 15:40:56.257 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 15:42:20.811 INFO kablam! error: build failed
Sep 02 15:42:20.812 INFO kablam! su: No module specific data is present
Sep 02 15:42:21.223 INFO running `"docker" "rm" "-f" "462034c9fb94687e987b1935e6f3413038538317ffe756d25feaa8f99dec9ae3"`
Sep 02 15:42:21.352 INFO blam! 462034c9fb94687e987b1935e6f3413038538317ffe756d25feaa8f99dec9ae3