[INFO] updating cached repository fest-im/fest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fest-im/fest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fest-im/fest" "work/ex/clippy-test-run/sources/stable/gh/fest-im/fest"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/fest-im/fest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fest-im/fest" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fest-im/fest"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fest-im/fest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7711b5d1f5e987a03107a53083690a56329e7846
[INFO] sha for GitHub repo fest-im/fest: 7711b5d1f5e987a03107a53083690a56329e7846
[INFO] validating manifest of fest-im/fest on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fest-im/fest on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fest-im/fest
[INFO] finished frobbing fest-im/fest
[INFO] frobbed toml for fest-im/fest written to work/ex/clippy-test-run/sources/stable/gh/fest-im/fest/Cargo.toml
[INFO] started frobbing fest-im/fest
[INFO] finished frobbing fest-im/fest
[INFO] frobbed toml for fest-im/fest written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fest-im/fest/Cargo.toml
[INFO] crate fest-im/fest has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/fest-im/ruma-events`
[INFO] [stderr] error: failed to resolve patches for `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to load source for a dependency on `ruma-events`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/fest-im/ruma-events?branch=synapse-workarounds#f960d47b
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to fetch into /mnt/big/crater/work/local/cargo-home/git/db/ruma-events-ec6285c517fe6a7f
[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" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed