[INFO] updating cached repository MrJohz/completist
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MrJohz/completist
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MrJohz/completist" "work/ex/clippy-test-run/sources/stable/gh/MrJohz/completist"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/MrJohz/completist'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MrJohz/completist" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/MrJohz/completist"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/MrJohz/completist'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2a120d8174c58ae85f87123844ae8988e39e9a47
[INFO] sha for GitHub repo MrJohz/completist: 2a120d8174c58ae85f87123844ae8988e39e9a47
[INFO] validating manifest of MrJohz/completist 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 MrJohz/completist 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 MrJohz/completist
[INFO] finished frobbing MrJohz/completist
[INFO] frobbed toml for MrJohz/completist written to work/ex/clippy-test-run/sources/stable/gh/MrJohz/completist/Cargo.toml
[INFO] started frobbing MrJohz/completist
[INFO] finished frobbing MrJohz/completist
[INFO] frobbed toml for MrJohz/completist written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/MrJohz/completist/Cargo.toml
[INFO] crate MrJohz/completist has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/MrJohz/completist/Cargo.lock needs to be updated but --locked was passed to prevent this
[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