[INFO] updating cached repository garyemerson/breadth_first_search_shortest_reach
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/garyemerson/breadth_first_search_shortest_reach
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/garyemerson/breadth_first_search_shortest_reach" "work/ex/clippy-test-run/sources/stable/gh/garyemerson/breadth_first_search_shortest_reach"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/garyemerson/breadth_first_search_shortest_reach'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/garyemerson/breadth_first_search_shortest_reach" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/garyemerson/breadth_first_search_shortest_reach"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/garyemerson/breadth_first_search_shortest_reach'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c621ee57319559079e0398369287452327d7d94
[INFO] sha for GitHub repo garyemerson/breadth_first_search_shortest_reach: 7c621ee57319559079e0398369287452327d7d94
[INFO] validating manifest of garyemerson/breadth_first_search_shortest_reach 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 garyemerson/breadth_first_search_shortest_reach 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 garyemerson/breadth_first_search_shortest_reach
[INFO] finished frobbing garyemerson/breadth_first_search_shortest_reach
[INFO] frobbed toml for garyemerson/breadth_first_search_shortest_reach written to work/ex/clippy-test-run/sources/stable/gh/garyemerson/breadth_first_search_shortest_reach/Cargo.toml
[INFO] started frobbing garyemerson/breadth_first_search_shortest_reach
[INFO] finished frobbing garyemerson/breadth_first_search_shortest_reach
[INFO] frobbed toml for garyemerson/breadth_first_search_shortest_reach written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/garyemerson/breadth_first_search_shortest_reach/Cargo.toml
[INFO] crate garyemerson/breadth_first_search_shortest_reach 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 garyemerson/breadth_first_search_shortest_reach against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/garyemerson/breadth_first_search_shortest_reach:/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 -Dclippy::into_iter_on_array" "-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] df8f9f8063173b2fafec7111457856782f3e3414095d1128211b39f68f0e50a1
[INFO] running `"docker" "start" "-a" "df8f9f8063173b2fafec7111457856782f3e3414095d1128211b39f68f0e50a1"`
[INFO] [stderr]     Checking breadth_first_search_shortest_reach v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `num_edges`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     num_edges: i32,
[INFO] [stderr]    |     ^^^^^^^^^ help: consider using `_num_edges` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_edges`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     num_edges: i32,
[INFO] [stderr]    |     ^^^^^^^^^ help: consider using `_num_edges` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/main.rs:24:11
[INFO] [stderr]    |
[INFO] [stderr] 24 |     while queue.len() != 0 {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!queue.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:41:14
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for n in 1..(num_nodes + 1) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^ help: use: `1..=num_nodes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/main.rs:71:31
[INFO] [stderr]    |
[INFO] [stderr] 71 |         edges.entry(nodes[0]).or_insert(HashSet::new()).insert(nodes[1]);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::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: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/main.rs:72:31
[INFO] [stderr]    |
[INFO] [stderr] 72 |         edges.entry(nodes[1]).or_insert(HashSet::new()).insert(nodes[0]);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[INFO] [stderr]    |
[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: length comparison to zero
[INFO] [stderr]   --> src/main.rs:24:11
[INFO] [stderr]    |
[INFO] [stderr] 24 |     while queue.len() != 0 {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!queue.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:41:14
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for n in 1..(num_nodes + 1) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^ help: use: `1..=num_nodes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/main.rs:71:31
[INFO] [stderr]    |
[INFO] [stderr] 71 |         edges.entry(nodes[0]).or_insert(HashSet::new()).insert(nodes[1]);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::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: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/main.rs:72:31
[INFO] [stderr]    |
[INFO] [stderr] 72 |         edges.entry(nodes[1]).or_insert(HashSet::new()).insert(nodes[0]);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[INFO] [stderr]    |
[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 0.53s
[INFO] running `"docker" "inspect" "df8f9f8063173b2fafec7111457856782f3e3414095d1128211b39f68f0e50a1"`
[INFO] running `"docker" "rm" "-f" "df8f9f8063173b2fafec7111457856782f3e3414095d1128211b39f68f0e50a1"`
[INFO] [stdout] df8f9f8063173b2fafec7111457856782f3e3414095d1128211b39f68f0e50a1