[INFO] updating cached repository Haggus/monarch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Haggus/monarch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Haggus/monarch" "work/ex/clippy-test-run/sources/stable/gh/Haggus/monarch"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Haggus/monarch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Haggus/monarch" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Haggus/monarch"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Haggus/monarch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9269a63301350539b63b8c0d20d8877f074e9fe8
[INFO] sha for GitHub repo Haggus/monarch: 9269a63301350539b63b8c0d20d8877f074e9fe8
[INFO] validating manifest of Haggus/monarch 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 Haggus/monarch 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 Haggus/monarch
[INFO] finished frobbing Haggus/monarch
[INFO] frobbed toml for Haggus/monarch written to work/ex/clippy-test-run/sources/stable/gh/Haggus/monarch/Cargo.toml
[INFO] started frobbing Haggus/monarch
[INFO] finished frobbing Haggus/monarch
[INFO] frobbed toml for Haggus/monarch written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Haggus/monarch/Cargo.toml
[INFO] crate Haggus/monarch 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/Haggus/monarch/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