[INFO] updating cached repository acmumn/minnehack-blockchain-check-in
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/acmumn/minnehack-blockchain-check-in
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/acmumn/minnehack-blockchain-check-in" "work/ex/clippy-test-run/sources/stable/gh/acmumn/minnehack-blockchain-check-in"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/acmumn/minnehack-blockchain-check-in'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/acmumn/minnehack-blockchain-check-in" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/acmumn/minnehack-blockchain-check-in"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/acmumn/minnehack-blockchain-check-in'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b75908ad2b87b7c31018b8e2e7f8df6aa3092831
[INFO] sha for GitHub repo acmumn/minnehack-blockchain-check-in: b75908ad2b87b7c31018b8e2e7f8df6aa3092831
[INFO] validating manifest of acmumn/minnehack-blockchain-check-in 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 acmumn/minnehack-blockchain-check-in 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 acmumn/minnehack-blockchain-check-in
[INFO] removed workspace from acmumn/minnehack-blockchain-check-in
[INFO] finished frobbing acmumn/minnehack-blockchain-check-in
[INFO] frobbed toml for acmumn/minnehack-blockchain-check-in written to work/ex/clippy-test-run/sources/stable/gh/acmumn/minnehack-blockchain-check-in/Cargo.toml
[INFO] started frobbing acmumn/minnehack-blockchain-check-in
[INFO] removed workspace from acmumn/minnehack-blockchain-check-in
[INFO] finished frobbing acmumn/minnehack-blockchain-check-in
[INFO] frobbed toml for acmumn/minnehack-blockchain-check-in written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/acmumn/minnehack-blockchain-check-in/Cargo.toml
[INFO] crate acmumn/minnehack-blockchain-check-in 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/acmumn/minnehack-blockchain-check-in/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