[INFO] updating cached repository leonardyp/rustguess
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/leonardyp/rustguess
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/leonardyp/rustguess" "work/ex/clippy-test-run/sources/stable/gh/leonardyp/rustguess"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/leonardyp/rustguess'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/leonardyp/rustguess" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/leonardyp/rustguess"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/leonardyp/rustguess'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a12e7aba76801af5dba05143b0c4994637ae5154
[INFO] sha for GitHub repo leonardyp/rustguess: a12e7aba76801af5dba05143b0c4994637ae5154
[INFO] validating manifest of leonardyp/rustguess 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 leonardyp/rustguess 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 leonardyp/rustguess
[INFO] finished frobbing leonardyp/rustguess
[INFO] frobbed toml for leonardyp/rustguess written to work/ex/clippy-test-run/sources/stable/gh/leonardyp/rustguess/Cargo.toml
[INFO] started frobbing leonardyp/rustguess
[INFO] finished frobbing leonardyp/rustguess
[INFO] frobbed toml for leonardyp/rustguess written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/leonardyp/rustguess/Cargo.toml
[INFO] crate leonardyp/rustguess 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/leonardyp/rustguess/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