[INFO] updating cached repository lain1936/ideo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lain1936/ideo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lain1936/ideo" "work/ex/clippy-test-run/sources/stable/gh/lain1936/ideo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/lain1936/ideo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lain1936/ideo" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lain1936/ideo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lain1936/ideo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 002fbcedcdb6ed0ef58e1f20b5ffd4883c6c59ec
[INFO] sha for GitHub repo lain1936/ideo: 002fbcedcdb6ed0ef58e1f20b5ffd4883c6c59ec
[INFO] validating manifest of lain1936/ideo 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 lain1936/ideo 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 lain1936/ideo
[INFO] finished frobbing lain1936/ideo
[INFO] frobbed toml for lain1936/ideo written to work/ex/clippy-test-run/sources/stable/gh/lain1936/ideo/Cargo.toml
[INFO] started frobbing lain1936/ideo
[INFO] finished frobbing lain1936/ideo
[INFO] frobbed toml for lain1936/ideo written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lain1936/ideo/Cargo.toml
[INFO] crate lain1936/ideo has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: Package `postgres v0.10.2` does not have feature `rustc-serialize`. It has a required dependency with that name, but only optional dependencies can be used as features. This is currently a warning to ease the transition, but it will become an error in the future.
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/lain1936/ideo/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