[INFO] crate tree-cursor 0.3.0 is already in cache
[INFO] extracting crate tree-cursor 0.3.0 into work/ex/clippy-test-run/sources/stable/reg/tree-cursor/0.3.0
[INFO] extracting crate tree-cursor 0.3.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/tree-cursor/0.3.0
[INFO] validating manifest of tree-cursor-0.3.0 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 tree-cursor-0.3.0 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 tree-cursor-0.3.0
[INFO] finished frobbing tree-cursor-0.3.0
[INFO] frobbed toml for tree-cursor-0.3.0 written to work/ex/clippy-test-run/sources/stable/reg/tree-cursor/0.3.0/Cargo.toml
[INFO] started frobbing tree-cursor-0.3.0
[INFO] finished frobbing tree-cursor-0.3.0
[INFO] frobbed toml for tree-cursor-0.3.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/tree-cursor/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 tree-cursor-0.3.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/tree-cursor/0.3.0:/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] 942cfadd62b428c6e4363d8a998e34f9a1473cb59b75c0ee14e42fce028c8bd7
[INFO] running `"docker" "start" "-a" "942cfadd62b428c6e4363d8a998e34f9a1473cb59b75c0ee14e42fce028c8bd7"`
[INFO] [stderr]     Checking tree-cursor v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/cursor.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 54 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 55 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 53 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]    |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cursor.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 136 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 137 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 135 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]     |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cursor.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 218 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 219 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 217 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]     |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cursor.rs:350:9
[INFO] [stderr]     |
[INFO] [stderr] 350 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 351 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 352 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 350 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]     |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/cursor.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 54 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 55 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 53 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]    |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cursor.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 136 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 137 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 135 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]     |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cursor.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 218 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 219 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 217 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]     |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cursor.rs:350:9
[INFO] [stderr]     |
[INFO] [stderr] 350 | /         if let &Some(new_ptr) = &maybe_new_ptr {
[INFO] [stderr] 351 | |             self.stack.push((new_ptr, 0));
[INFO] [stderr] 352 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 350 |         if let Some(new_ptr) = maybe_new_ptr {
[INFO] [stderr]     |                ^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 35
[INFO] [stderr]   --> src/tests/hashmap_tree.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / fn down_map() {
[INFO] [stderr] 24 | |     let t = nn(0, vec![
[INFO] [stderr] 25 | |         ("foo", n(1)),
[INFO] [stderr] 26 | |         ("bar", nn(2, vec![
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |     assert_eq!(cm.get().x, 1);
[INFO] [stderr] 76 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]    = help: you could split it up into multiple smaller functions
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 59
[INFO] [stderr]    --> src/tests/link_tree.rs:34:1
[INFO] [stderr]     |
[INFO] [stderr] 34  | / fn link_tree() {
[INFO] [stderr] 35  | |     let root = n("foo");
[INFO] [stderr] 36  | |     let nn = vec![
[INFO] [stderr] 37  | |         ("foo", n("bar")),
[INFO] [stderr] ...   |
[INFO] [stderr] 131 | |     assert_eq!(&cm.get().target, "bar");
[INFO] [stderr] 132 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 120
[INFO] [stderr]    --> src/tests/standard_tree.rs:115:1
[INFO] [stderr]     |
[INFO] [stderr] 115 | / fn get() {
[INFO] [stderr] 116 | |     let t = xx(vec![
[INFO] [stderr] 117 | |         xx(vec![
[INFO] [stderr] 118 | |             x(),
[INFO] [stderr] ...   |
[INFO] [stderr] 275 | |     assert_eq!(cm.get().v.len(), 2);
[INFO] [stderr] 276 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 37
[INFO] [stderr]    --> src/tests/standard_tree.rs:279:1
[INFO] [stderr]     |
[INFO] [stderr] 279 | / fn scoped_down() {
[INFO] [stderr] 280 | |     let t = xx(vec![
[INFO] [stderr] 281 | |         xx(vec![
[INFO] [stderr] 282 | |             x(),
[INFO] [stderr] ...   |
[INFO] [stderr] 349 | |     assert!(cm.down());
[INFO] [stderr] 350 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 47
[INFO] [stderr]    --> src/tests/standard_tree.rs:353:1
[INFO] [stderr]     |
[INFO] [stderr] 353 | / fn take() {
[INFO] [stderr] 354 | |     let t = xx(vec![
[INFO] [stderr] 355 | |         xx(vec![
[INFO] [stderr] 356 | |             x(),
[INFO] [stderr] ...   |
[INFO] [stderr] 433 | |     assert!(cm.down());
[INFO] [stderr] 434 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "942cfadd62b428c6e4363d8a998e34f9a1473cb59b75c0ee14e42fce028c8bd7"`
[INFO] running `"docker" "rm" "-f" "942cfadd62b428c6e4363d8a998e34f9a1473cb59b75c0ee14e42fce028c8bd7"`
[INFO] [stdout] 942cfadd62b428c6e4363d8a998e34f9a1473cb59b75c0ee14e42fce028c8bd7