[INFO] updating cached repository jonlamb-gh/stm32f4-discovery-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jonlamb-gh/stm32f4-discovery-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jonlamb-gh/stm32f4-discovery-example" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jonlamb-gh/stm32f4-discovery-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jonlamb-gh/stm32f4-discovery-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jonlamb-gh/stm32f4-discovery-example" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jonlamb-gh/stm32f4-discovery-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jonlamb-gh/stm32f4-discovery-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2140209cdceedc025b75f6c7250e048b11763a87
[INFO] sha for GitHub repo jonlamb-gh/stm32f4-discovery-example: 2140209cdceedc025b75f6c7250e048b11763a87
[INFO] validating manifest of jonlamb-gh/stm32f4-discovery-example on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jonlamb-gh/stm32f4-discovery-example on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jonlamb-gh/stm32f4-discovery-example
[INFO] finished frobbing jonlamb-gh/stm32f4-discovery-example
[INFO] frobbed toml for jonlamb-gh/stm32f4-discovery-example written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jonlamb-gh/stm32f4-discovery-example/Cargo.toml
[INFO] started frobbing jonlamb-gh/stm32f4-discovery-example
[INFO] finished frobbing jonlamb-gh/stm32f4-discovery-example
[INFO] frobbed toml for jonlamb-gh/stm32f4-discovery-example written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jonlamb-gh/stm32f4-discovery-example/Cargo.toml
[INFO] crate jonlamb-gh/stm32f4-discovery-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/jonlamb-gh/stm32f407-hal.git`
[INFO] [stderr] error: failed to load source for a dependency on `stm32f407-hal`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/jonlamb-gh/stm32f407-hal.git?branch=devel#199bf714
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to fetch into /mnt/big/crater/work/local/cargo-home/git/db/stm32f407-hal-1c75fe42b865eaf9
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to authenticate when downloading repository
[INFO] [stderr] attempted to find username/password via git's `credential.helper` support, but failed
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to acquire username/password from local configuration
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed