[INFO] updating cached repository GrahamClark/collections-exercises-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GrahamClark/collections-exercises-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GrahamClark/collections-exercises-rust" "work/ex/clippy-test-run/sources/stable/gh/GrahamClark/collections-exercises-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/GrahamClark/collections-exercises-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GrahamClark/collections-exercises-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/GrahamClark/collections-exercises-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/GrahamClark/collections-exercises-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 07217f7bbfeea46e91534db8ae932919ea060e90
[INFO] sha for GitHub repo GrahamClark/collections-exercises-rust: 07217f7bbfeea46e91534db8ae932919ea060e90
[INFO] validating manifest of GrahamClark/collections-exercises-rust 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 GrahamClark/collections-exercises-rust 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 GrahamClark/collections-exercises-rust
[INFO] finished frobbing GrahamClark/collections-exercises-rust
[INFO] frobbed toml for GrahamClark/collections-exercises-rust written to work/ex/clippy-test-run/sources/stable/gh/GrahamClark/collections-exercises-rust/Cargo.toml
[INFO] started frobbing GrahamClark/collections-exercises-rust
[INFO] finished frobbing GrahamClark/collections-exercises-rust
[INFO] frobbed toml for GrahamClark/collections-exercises-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/GrahamClark/collections-exercises-rust/Cargo.toml
[INFO] crate GrahamClark/collections-exercises-rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting GrahamClark/collections-exercises-rust against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/GrahamClark/collections-exercises-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d2c107dee3e7c0a12b3adc6b8b2327db5b0d0290af6cd824eaff72a6d8d60bd8
[INFO] running `"docker" "start" "-a" "d2c107dee3e7c0a12b3adc6b8b2327db5b0d0290af6cd824eaff72a6d8d60bd8"`
[INFO] [stderr]     Checking collections_exercises v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: parameter of type `HashMap` should be generalized over different hashers
[INFO] [stderr]  --> src/employees.rs:3:40
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn staff_to_dept(command: &str, h: HashMap<String, Vec<String>>) -> HashMap<String, Vec<String>> {
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::implicit_hasher)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#implicit_hasher
[INFO] [stderr] help: consider adding a type parameter
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn staff_to_dept<S: ::std::hash::BuildHasher>(command: &str, h: HashMap<String, Vec<String>, S>) -> HashMap<String, Vec<String>> {
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/employees.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     h.entry(dept).or_insert(Vec::new()).push(name);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: parameter of type `HashMap` should be generalized over different hashers
[INFO] [stderr]  --> src/employees.rs:3:40
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn staff_to_dept(command: &str, h: HashMap<String, Vec<String>>) -> HashMap<String, Vec<String>> {
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::implicit_hasher)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#implicit_hasher
[INFO] [stderr] help: consider adding a type parameter
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn staff_to_dept<S: ::std::hash::BuildHasher>(command: &str, h: HashMap<String, Vec<String>, S>) -> HashMap<String, Vec<String>> {
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/employees.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     h.entry(dept).or_insert(Vec::new()).push(name);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `"docker" "inspect" "d2c107dee3e7c0a12b3adc6b8b2327db5b0d0290af6cd824eaff72a6d8d60bd8"`
[INFO] running `"docker" "rm" "-f" "d2c107dee3e7c0a12b3adc6b8b2327db5b0d0290af6cd824eaff72a6d8d60bd8"`
[INFO] [stdout] d2c107dee3e7c0a12b3adc6b8b2327db5b0d0290af6cd824eaff72a6d8d60bd8