[INFO] crate efm32gg11b820 0.7.0 is already in cache
[INFO] extracting crate efm32gg11b820 0.7.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/efm32gg11b820/0.7.0
[INFO] extracting crate efm32gg11b820 0.7.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/efm32gg11b820/0.7.0
[INFO] validating manifest of efm32gg11b820-0.7.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of efm32gg11b820-0.7.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing efm32gg11b820-0.7.0
[INFO] finished frobbing efm32gg11b820-0.7.0
[INFO] frobbed toml for efm32gg11b820-0.7.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/efm32gg11b820/0.7.0/Cargo.toml
[INFO] started frobbing efm32gg11b820-0.7.0
[INFO] finished frobbing efm32gg11b820-0.7.0
[INFO] frobbed toml for efm32gg11b820-0.7.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/efm32gg11b820/0.7.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing efm32gg11b820-0.7.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/efm32gg11b820/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8ec1764949aa855dd3f9a09f66710637ad3143b4b3c78adee4951ecbaa3e8652
[INFO] running `"docker" "start" "-a" "8ec1764949aa855dd3f9a09f66710637ad3143b4b3c78adee4951ecbaa3e8652"`
[INFO] [stderr]    Compiling efm32gg11b820 v0.7.0 (/opt/crater/workdir)
[INFO] [stderr] error: Could not compile `efm32gg11b820`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name efm32gg11b820 src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=edc2acb793c52d4f -C extra-filename=-edc2acb793c52d4f --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern bare_metal=/opt/crater/target/debug/deps/libbare_metal-34753df447cbc5d6.rlib --extern cortex_m=/opt/crater/target/debug/deps/libcortex_m-312d0aa28a0c174b.rlib --extern vcell=/opt/crater/target/debug/deps/libvcell-5a36879800c7f430.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "8ec1764949aa855dd3f9a09f66710637ad3143b4b3c78adee4951ecbaa3e8652"`
[INFO] running `"docker" "rm" "-f" "8ec1764949aa855dd3f9a09f66710637ad3143b4b3c78adee4951ecbaa3e8652"`
[INFO] [stdout] 8ec1764949aa855dd3f9a09f66710637ad3143b4b3c78adee4951ecbaa3e8652