[INFO] updating cached repository smbolton/stm32f3-liar-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/smbolton/stm32f3-liar-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/smbolton/stm32f3-liar-test" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/smbolton/stm32f3-liar-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/smbolton/stm32f3-liar-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/smbolton/stm32f3-liar-test" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/smbolton/stm32f3-liar-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/smbolton/stm32f3-liar-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 146bfe4f23b7060358ae03209d23167aea938c8a
[INFO] sha for GitHub repo smbolton/stm32f3-liar-test: 146bfe4f23b7060358ae03209d23167aea938c8a
[INFO] validating manifest of smbolton/stm32f3-liar-test on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of smbolton/stm32f3-liar-test on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing smbolton/stm32f3-liar-test
[INFO] removed path dependency liar from smbolton/stm32f3-liar-test
[INFO] finished frobbing smbolton/stm32f3-liar-test
[INFO] frobbed toml for smbolton/stm32f3-liar-test written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/smbolton/stm32f3-liar-test/Cargo.toml
[INFO] started frobbing smbolton/stm32f3-liar-test
[INFO] removed path dependency liar from smbolton/stm32f3-liar-test
[INFO] finished frobbing smbolton/stm32f3-liar-test
[INFO] frobbed toml for smbolton/stm32f3-liar-test written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/smbolton/stm32f3-liar-test/Cargo.toml
[INFO] crate smbolton/stm32f3-liar-test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/smbolton/stm32f3-liar-test/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr] error: failed to run `rustc` to learn about target-specific information
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc - --crate-name ___ --print=file-names -C link-arg=-Tlink.x -C linker=arm-none-eabi-ld -Z linker-flavor=ld --target thumbv7m-none-eabi --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro` (exit code: 1)
[INFO] [stderr] --- stderr
[INFO] [stderr] error: unknown debugging option: `linker-flavor`
[INFO] [stderr] 
[INFO] [stderr] 
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed