[INFO] crate rangetree 0.1.2 is already in cache
[INFO] extracting crate rangetree 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/rangetree/0.1.2
[INFO] extracting crate rangetree 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rangetree/0.1.2
[INFO] validating manifest of rangetree-0.1.2 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 rangetree-0.1.2 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 rangetree-0.1.2
[INFO] finished frobbing rangetree-0.1.2
[INFO] frobbed toml for rangetree-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/rangetree/0.1.2/Cargo.toml
[INFO] started frobbing rangetree-0.1.2
[INFO] finished frobbing rangetree-0.1.2
[INFO] frobbed toml for rangetree-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rangetree/0.1.2/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 rangetree-0.1.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rangetree/0.1.2:/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] f831fc5b01f809b4b8593835ac1ba7759a4e6d1491c8a3ef62570a26225e2e0c
[INFO] running `"docker" "start" "-a" "f831fc5b01f809b4b8593835ac1ba7759a4e6d1491c8a3ef62570a26225e2e0c"`
[INFO] [stderr]     Checking rangetree v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/mempool_elem.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             chunk_size: chunk_size,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `chunk_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/mempool_elem.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             chunk_size: chunk_size,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `chunk_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:809:13
[INFO] [stderr]     |
[INFO] [stderr] 809 |             range: range,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `range`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:828:13
[INFO] [stderr]     |
[INFO] [stderr] 828 |             range: range,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `range`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:809:13
[INFO] [stderr]     |
[INFO] [stderr] 809 |             range: range,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `range`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:828:13
[INFO] [stderr]     |
[INFO] [stderr] 828 |             range: range,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `range`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/mempool_elem.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             return chunk.data.last_mut().unwrap();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `chunk.data.last_mut().unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/mempool_elem.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |             return unsafe { &mut *elem };
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `unsafe { &mut *elem }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/mempool_elem.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |             return chunk.data.last_mut().unwrap();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `chunk.data.last_mut().unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/mempool_elem.rs:104:13
[INFO] [stderr]     |
[INFO] [stderr] 104 |             return unsafe { &mut *elem };
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `unsafe { &mut *elem }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |             return self.next;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.next`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:344:9
[INFO] [stderr]     |
[INFO] [stderr] 344 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/lib.rs:339:9
[INFO] [stderr]     |
[INFO] [stderr] 339 | /         if !node.is_null() {
[INFO] [stderr] 340 | |             if unsafe { (*node).color } == RED {
[INFO] [stderr] 341 | |                 return true;
[INFO] [stderr] 342 | |             }
[INFO] [stderr] 343 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 339 |         if !node.is_null() && unsafe { (*node).color } == RED {
[INFO] [stderr] 340 |     return true;
[INFO] [stderr] 341 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 | /         return if key1 == key2 {
[INFO] [stderr] 352 | |             0
[INFO] [stderr] 353 | |         } else {
[INFO] [stderr] 354 | |             if key1 < key2 {
[INFO] [stderr] ...   |
[INFO] [stderr] 358 | |             }
[INFO] [stderr] 359 | |         };
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 351 |         if key1 == key2 {
[INFO] [stderr] 352 |             0
[INFO] [stderr] 353 |         } else {
[INFO] [stderr] 354 |             if key1 < key2 {
[INFO] [stderr] 355 |                 -1
[INFO] [stderr] 356 |             } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:353:16
[INFO] [stderr]     |
[INFO] [stderr] 353 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 354 | |             if key1 < key2 {
[INFO] [stderr] 355 | |                 -1
[INFO] [stderr] 356 | |             } else {
[INFO] [stderr] 357 | |                 1
[INFO] [stderr] 358 | |             }
[INFO] [stderr] 359 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 353 |         } else if key1 < key2 {
[INFO] [stderr] 354 |     -1
[INFO] [stderr] 355 | } else {
[INFO] [stderr] 356 |     1
[INFO] [stderr] 357 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:371:9
[INFO] [stderr]     |
[INFO] [stderr] 371 |         return right;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `right`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         return left;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `left`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:410:9
[INFO] [stderr]     |
[INFO] [stderr] 410 |         return node;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         return node;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:470:9
[INFO] [stderr]     |
[INFO] [stderr] 470 |         return root;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `root`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:462:13
[INFO] [stderr]     |
[INFO] [stderr] 462 |             return node;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:486:13
[INFO] [stderr]     |
[INFO] [stderr] 486 |             return node;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |             return (fixup_remove(node), node_free);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(fixup_remove(node), node_free)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:575:9
[INFO] [stderr]     |
[INFO] [stderr] 575 |         return root;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `root`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:566:13
[INFO] [stderr]     |
[INFO] [stderr] 566 |             return fixup_remove(node);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `fixup_remove(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/lib.rs:524:17
[INFO] [stderr]     |
[INFO] [stderr] 524 | /                 if !(*node).left.is_null() {
[INFO] [stderr] 525 | |                     if (!is_red((*node).left)) &&
[INFO] [stderr] 526 | |                        (!is_red((*(*node).left).left))
[INFO] [stderr] 527 | |                     {
[INFO] [stderr] 528 | |                         node = move_red_to_left(node);
[INFO] [stderr] 529 | |                     }
[INFO] [stderr] 530 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 524 |                 if !(*node).left.is_null() && (!is_red((*node).left)) &&
[INFO] [stderr] 525 |                        (!is_red((*(*node).left).left)) {
[INFO] [stderr] 526 |     node = move_red_to_left(node);
[INFO] [stderr] 527 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         return ptr::null_mut();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:591:17
[INFO] [stderr]     |
[INFO] [stderr] 591 |                 return n;  // exact match
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:601:17
[INFO] [stderr]     |
[INFO] [stderr] 601 |                 return n;
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:606:17
[INFO] [stderr]     |
[INFO] [stderr] 606 |                 return ptr::null_mut();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         return ptr::null_mut();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:632:17
[INFO] [stderr]     |
[INFO] [stderr] 632 |                 return n;  // exact match
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:642:17
[INFO] [stderr]     |
[INFO] [stderr] 642 |                 return n;
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:647:17
[INFO] [stderr]     |
[INFO] [stderr] 647 |                 return ptr::null_mut();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:685:9
[INFO] [stderr]     |
[INFO] [stderr] 685 |         return is_balanced_recursive(root, black);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `is_balanced_recursive(root, black)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:673:13
[INFO] [stderr]     |
[INFO] [stderr] 673 | /             return is_balanced_recursive(unsafe { (*node).left }, black) &&
[INFO] [stderr] 674 | |                    is_balanced_recursive(unsafe { (*node).right }, black);
[INFO] [stderr]     | |__________________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 673 |             is_balanced_recursive(unsafe { (*node).left }, black) &&
[INFO] [stderr] 674 |                    is_balanced_recursive(unsafe { (*node).right }, black)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:706:9
[INFO] [stderr]     |
[INFO] [stderr] 706 |         return self.node_pool.alloc_elem_from(node_data);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.node_pool.alloc_elem_from(node_data)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:850:13
[INFO] [stderr]     |
[INFO] [stderr] 850 |             return ptr::null_mut();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:861:13
[INFO] [stderr]     |
[INFO] [stderr] 861 |             return ptr::null_mut();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:899:9
[INFO] [stderr]     |
[INFO] [stderr] 899 |         return (ptr::null_mut(), ptr::null_mut());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(ptr::null_mut(), ptr::null_mut())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:873:16
[INFO] [stderr]     |
[INFO] [stderr] 873 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 874 | |             if USE_BTREE {
[INFO] [stderr] 875 | |                 let node_next = rb::get_or_upper(self.root, &value);
[INFO] [stderr] 876 | |                 if !node_next.is_null() {
[INFO] [stderr] ...   |
[INFO] [stderr] 897 | |             }
[INFO] [stderr] 898 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 873 |         } else if USE_BTREE {
[INFO] [stderr] 874 |     let node_next = rb::get_or_upper(self.root, &value);
[INFO] [stderr] 875 |     if !node_next.is_null() {
[INFO] [stderr] 876 |         let node_next = unsafe { &mut *node_next };
[INFO] [stderr] 877 |         let node_prev = unsafe { &mut *(*node_next).prev };
[INFO] [stderr] 878 |         if (&node_prev.range[1] < value) &&
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:914:9
[INFO] [stderr]     |
[INFO] [stderr] 914 |         return r;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `r`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:980:13
[INFO] [stderr]     |
[INFO] [stderr] 980 |             return true;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:982:13
[INFO] [stderr]     |
[INFO] [stderr] 982 |             return false;
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1000:13
[INFO] [stderr]      |
[INFO] [stderr] 1000 |             return Some(value);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(value)`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1002:13
[INFO] [stderr]      |
[INFO] [stderr] 1002 |             return None;
[INFO] [stderr]      |             ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1017:9
[INFO] [stderr]      |
[INFO] [stderr] 1017 |         return !node.is_null();
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `!node.is_null()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1027:9
[INFO] [stderr]      |
[INFO] [stderr] 1027 | /         return (self.list.first == self.list.last) &&
[INFO] [stderr] 1028 | |                (unsafe { self.range[0] == (*self.list.first).range[0] }) &&
[INFO] [stderr] 1029 | |                (unsafe { self.range[1] == (*self.list.first).range[1] });
[INFO] [stderr]      | |_________________________________________________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]      |
[INFO] [stderr] 1027 |         (self.list.first == self.list.last) &&
[INFO] [stderr] 1028 |                (unsafe { self.range[0] == (*self.list.first).range[0] }) &&
[INFO] [stderr] 1029 |                (unsafe { self.range[1] == (*self.list.first).range[1] })
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1036:9
[INFO] [stderr]      |
[INFO] [stderr] 1036 |         return self.list.first.is_null();
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.list.first.is_null()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1149:9
[INFO] [stderr]      |
[INFO] [stderr] 1149 |         return ret;
[INFO] [stderr]      |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1176:9
[INFO] [stderr]      |
[INFO] [stderr] 1176 |         return ret;
[INFO] [stderr]      |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/mempool_elem.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             return chunk.data.last_mut().unwrap();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `chunk.data.last_mut().unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/mempool_elem.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |             return unsafe { &mut *elem };
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `unsafe { &mut *elem }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/mempool_elem.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |             return chunk.data.last_mut().unwrap();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `chunk.data.last_mut().unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/mempool_elem.rs:104:13
[INFO] [stderr]     |
[INFO] [stderr] 104 |             return unsafe { &mut *elem };
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `unsafe { &mut *elem }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |             return self.next;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.next`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:344:9
[INFO] [stderr]     |
[INFO] [stderr] 344 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/lib.rs:339:9
[INFO] [stderr]     |
[INFO] [stderr] 339 | /         if !node.is_null() {
[INFO] [stderr] 340 | |             if unsafe { (*node).color } == RED {
[INFO] [stderr] 341 | |                 return true;
[INFO] [stderr] 342 | |             }
[INFO] [stderr] 343 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 339 |         if !node.is_null() && unsafe { (*node).color } == RED {
[INFO] [stderr] 340 |     return true;
[INFO] [stderr] 341 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 | /         return if key1 == key2 {
[INFO] [stderr] 352 | |             0
[INFO] [stderr] 353 | |         } else {
[INFO] [stderr] 354 | |             if key1 < key2 {
[INFO] [stderr] ...   |
[INFO] [stderr] 358 | |             }
[INFO] [stderr] 359 | |         };
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 351 |         if key1 == key2 {
[INFO] [stderr] 352 |             0
[INFO] [stderr] 353 |         } else {
[INFO] [stderr] 354 |             if key1 < key2 {
[INFO] [stderr] 355 |                 -1
[INFO] [stderr] 356 |             } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:353:16
[INFO] [stderr]     |
[INFO] [stderr] 353 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 354 | |             if key1 < key2 {
[INFO] [stderr] 355 | |                 -1
[INFO] [stderr] 356 | |             } else {
[INFO] [stderr] 357 | |                 1
[INFO] [stderr] 358 | |             }
[INFO] [stderr] 359 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 353 |         } else if key1 < key2 {
[INFO] [stderr] 354 |     -1
[INFO] [stderr] 355 | } else {
[INFO] [stderr] 356 |     1
[INFO] [stderr] 357 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:371:9
[INFO] [stderr]     |
[INFO] [stderr] 371 |         return right;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `right`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         return left;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `left`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:410:9
[INFO] [stderr]     |
[INFO] [stderr] 410 |         return node;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         return node;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:470:9
[INFO] [stderr]     |
[INFO] [stderr] 470 |         return root;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `root`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:462:13
[INFO] [stderr]     |
[INFO] [stderr] 462 |             return node;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:486:13
[INFO] [stderr]     |
[INFO] [stderr] 486 |             return node;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `node`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |             return (fixup_remove(node), node_free);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(fixup_remove(node), node_free)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:575:9
[INFO] [stderr]     |
[INFO] [stderr] 575 |         return root;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `root`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:566:13
[INFO] [stderr]     |
[INFO] [stderr] 566 |             return fixup_remove(node);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `fixup_remove(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/lib.rs:524:17
[INFO] [stderr]     |
[INFO] [stderr] 524 | /                 if !(*node).left.is_null() {
[INFO] [stderr] 525 | |                     if (!is_red((*node).left)) &&
[INFO] [stderr] 526 | |                        (!is_red((*(*node).left).left))
[INFO] [stderr] 527 | |                     {
[INFO] [stderr] 528 | |                         node = move_red_to_left(node);
[INFO] [stderr] 529 | |                     }
[INFO] [stderr] 530 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 524 |                 if !(*node).left.is_null() && (!is_red((*node).left)) &&
[INFO] [stderr] 525 |                        (!is_red((*(*node).left).left)) {
[INFO] [stderr] 526 |     node = move_red_to_left(node);
[INFO] [stderr] 527 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         return ptr::null_mut();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:591:17
[INFO] [stderr]     |
[INFO] [stderr] 591 |                 return n;  // exact match
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:601:17
[INFO] [stderr]     |
[INFO] [stderr] 601 |                 return n;
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:606:17
[INFO] [stderr]     |
[INFO] [stderr] 606 |                 return ptr::null_mut();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         return ptr::null_mut();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:632:17
[INFO] [stderr]     |
[INFO] [stderr] 632 |                 return n;  // exact match
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:642:17
[INFO] [stderr]     |
[INFO] [stderr] 642 |                 return n;
[INFO] [stderr]     |                 ^^^^^^^^^ help: remove `return` as shown: `n`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:647:17
[INFO] [stderr]     |
[INFO] [stderr] 647 |                 return ptr::null_mut();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:685:9
[INFO] [stderr]     |
[INFO] [stderr] 685 |         return is_balanced_recursive(root, black);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `is_balanced_recursive(root, black)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:673:13
[INFO] [stderr]     |
[INFO] [stderr] 673 | /             return is_balanced_recursive(unsafe { (*node).left }, black) &&
[INFO] [stderr] 674 | |                    is_balanced_recursive(unsafe { (*node).right }, black);
[INFO] [stderr]     | |__________________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 673 |             is_balanced_recursive(unsafe { (*node).left }, black) &&
[INFO] [stderr] 674 |                    is_balanced_recursive(unsafe { (*node).right }, black)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:706:9
[INFO] [stderr]     |
[INFO] [stderr] 706 |         return self.node_pool.alloc_elem_from(node_data);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.node_pool.alloc_elem_from(node_data)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:850:13
[INFO] [stderr]     |
[INFO] [stderr] 850 |             return ptr::null_mut();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:861:13
[INFO] [stderr]     |
[INFO] [stderr] 861 |             return ptr::null_mut();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ptr::null_mut()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:899:9
[INFO] [stderr]     |
[INFO] [stderr] 899 |         return (ptr::null_mut(), ptr::null_mut());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(ptr::null_mut(), ptr::null_mut())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:873:16
[INFO] [stderr]     |
[INFO] [stderr] 873 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 874 | |             if USE_BTREE {
[INFO] [stderr] 875 | |                 let node_next = rb::get_or_upper(self.root, &value);
[INFO] [stderr] 876 | |                 if !node_next.is_null() {
[INFO] [stderr] ...   |
[INFO] [stderr] 897 | |             }
[INFO] [stderr] 898 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 873 |         } else if USE_BTREE {
[INFO] [stderr] 874 |     let node_next = rb::get_or_upper(self.root, &value);
[INFO] [stderr] 875 |     if !node_next.is_null() {
[INFO] [stderr] 876 |         let node_next = unsafe { &mut *node_next };
[INFO] [stderr] 877 |         let node_prev = unsafe { &mut *(*node_next).prev };
[INFO] [stderr] 878 |         if (&node_prev.range[1] < value) &&
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:914:9
[INFO] [stderr]     |
[INFO] [stderr] 914 |         return r;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `r`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:980:13
[INFO] [stderr]     |
[INFO] [stderr] 980 |             return true;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:982:13
[INFO] [stderr]     |
[INFO] [stderr] 982 |             return false;
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1000:13
[INFO] [stderr]      |
[INFO] [stderr] 1000 |             return Some(value);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(value)`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1002:13
[INFO] [stderr]      |
[INFO] [stderr] 1002 |             return None;
[INFO] [stderr]      |             ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1017:9
[INFO] [stderr]      |
[INFO] [stderr] 1017 |         return !node.is_null();
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `!node.is_null()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1027:9
[INFO] [stderr]      |
[INFO] [stderr] 1027 | /         return (self.list.first == self.list.last) &&
[INFO] [stderr] 1028 | |                (unsafe { self.range[0] == (*self.list.first).range[0] }) &&
[INFO] [stderr] 1029 | |                (unsafe { self.range[1] == (*self.list.first).range[1] });
[INFO] [stderr]      | |_________________________________________________________________________^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]      |
[INFO] [stderr] 1027 |         (self.list.first == self.list.last) &&
[INFO] [stderr] 1028 |                (unsafe { self.range[0] == (*self.list.first).range[0] }) &&
[INFO] [stderr] 1029 |                (unsafe { self.range[1] == (*self.list.first).range[1] })
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1036:9
[INFO] [stderr]      |
[INFO] [stderr] 1036 |         return self.list.first.is_null();
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.list.first.is_null()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1149:9
[INFO] [stderr]      |
[INFO] [stderr] 1149 |         return ret;
[INFO] [stderr]      |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/lib.rs:1176:9
[INFO] [stderr]      |
[INFO] [stderr] 1176 |         return ret;
[INFO] [stderr]      |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/tests_rangetree.rs:65:23
[INFO] [stderr]    |
[INFO] [stderr] 65 |         assert!(r.has((i * 2)) == false);
[INFO] [stderr]    |                       ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/tests_rangetree.rs:65:23
[INFO] [stderr]    |
[INFO] [stderr] 65 |         assert!(r.has((i * 2)) == false);
[INFO] [stderr]    |                       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/tests_mempool.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         return self.link;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.link`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]    --> src/lib.rs:593:31
[INFO] [stderr]     |
[INFO] [stderr] 593 |                 debug_assert!(key!(*n) <= &key);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]     |
[INFO] [stderr] 333 |             $body.range[0]
[INFO] [stderr] 334 |         }
[INFO] [stderr] 335 |     }
[INFO] [stderr] 336 | 
[INFO] [stderr] 337 |     fn is_red<TOrd: RType>(node: *mut Node<TOrd>) -> bool
[INFO] [stderr] 338 |     {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]    --> src/lib.rs:634:31
[INFO] [stderr]     |
[INFO] [stderr] 634 |                 debug_assert!(key!(*n) >= &key);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]     |
[INFO] [stderr] 333 |             $body.range[0]
[INFO] [stderr] 334 |         }
[INFO] [stderr] 335 |     }
[INFO] [stderr] 336 | 
[INFO] [stderr] 337 |     fn is_red<TOrd: RType>(node: *mut Node<TOrd>) -> bool
[INFO] [stderr] 338 |     {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]    --> src/lib.rs:844:20
[INFO] [stderr]     |
[INFO] [stderr] 844 |                 if (value >= &node.range[0]) &&
[INFO] [stderr]     |                    ^^^^^^^^^^--------------^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: use the right value directly: `node.range[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]    --> src/lib.rs:845:20
[INFO] [stderr]     |
[INFO] [stderr] 845 |                    (value <= &node.range[1])
[INFO] [stderr]     |                    ^^^^^^^^^^--------------^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: use the right value directly: `node.range[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:879:24
[INFO] [stderr]     |
[INFO] [stderr] 879 |                     if (&node_prev.range[1] < value) &&
[INFO] [stderr]     |                        ^-------------------^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: use the left value directly: `node_prev.range[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:880:24
[INFO] [stderr]     |
[INFO] [stderr] 880 |                        (&node_next.range[0] > value)
[INFO] [stderr]     |                        ^-------------------^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: use the left value directly: `node_next.range[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:889:32
[INFO] [stderr]     |
[INFO] [stderr] 889 |                     if unsafe {(&(*node_prev).range[1] < value) &&
[INFO] [stderr]     |                                ^----------------------^^^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: use the left value directly: `(*node_prev).range[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:890:32
[INFO] [stderr]     |
[INFO] [stderr] 890 |                                (&(*node_next).range[0] > value) }
[INFO] [stderr]     |                                ^----------------------^^^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: use the left value directly: `(*node_next).range[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]    --> src/lib.rs:593:31
[INFO] [stderr]     |
[INFO] [stderr] 593 |                 debug_assert!(key!(*n) <= &key);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]     |
[INFO] [stderr] 333 |             $body.range[0]
[INFO] [stderr] 334 |         }
[INFO] [stderr] 335 |     }
[INFO] [stderr] 336 | 
[INFO] [stderr] 337 |     fn is_red<TOrd: RType>(node: *mut Node<TOrd>) -> bool
[INFO] [stderr] 338 |     {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]    --> src/lib.rs:634:31
[INFO] [stderr]     |
[INFO] [stderr] 634 |                 debug_assert!(key!(*n) >= &key);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]     |
[INFO] [stderr] 333 |             $body.range[0]
[INFO] [stderr] 334 |         }
[INFO] [stderr] 335 |     }
[INFO] [stderr] 336 | 
[INFO] [stderr] 337 |     fn is_red<TOrd: RType>(node: *mut Node<TOrd>) -> bool
[INFO] [stderr] 338 |     {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]    --> src/lib.rs:844:20
[INFO] [stderr]     |
[INFO] [stderr] 844 |                 if (value >= &node.range[0]) &&
[INFO] [stderr]     |                    ^^^^^^^^^^--------------^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: use the right value directly: `node.range[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]    --> src/lib.rs:845:20
[INFO] [stderr]     |
[INFO] [stderr] 845 |                    (value <= &node.range[1])
[INFO] [stderr]     |                    ^^^^^^^^^^--------------^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: use the right value directly: `node.range[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:879:24
[INFO] [stderr]     |
[INFO] [stderr] 879 |                     if (&node_prev.range[1] < value) &&
[INFO] [stderr]     |                        ^-------------------^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: use the left value directly: `node_prev.range[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:880:24
[INFO] [stderr]     |
[INFO] [stderr] 880 |                        (&node_next.range[0] > value)
[INFO] [stderr]     |                        ^-------------------^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: use the left value directly: `node_next.range[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:889:32
[INFO] [stderr]     |
[INFO] [stderr] 889 |                     if unsafe {(&(*node_prev).range[1] < value) &&
[INFO] [stderr]     |                                ^----------------------^^^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: use the left value directly: `(*node_prev).range[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/lib.rs:890:32
[INFO] [stderr]     |
[INFO] [stderr] 890 |                                (&(*node_next).range[0] > value) }
[INFO] [stderr]     |                                ^----------------------^^^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: use the left value directly: `(*node_next).range[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]   --> src/tests_rangetree.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |     assert!(r.has(i) == false);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!r.has(i)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::bool_comparison)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]   --> src/tests_rangetree.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     assert!(r.has(i) == false);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!r.has(i)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against true are unnecessary
[INFO] [stderr]   --> src/tests_rangetree.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |     assert!(r.is_empty() == true);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `r.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]   --> src/tests_rangetree.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |     assert!(r.is_empty() == false);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!r.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against true are unnecessary
[INFO] [stderr]   --> src/tests_rangetree.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |         assert!(r.has((i * 2) + 1) == true);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `r.has((i * 2) + 1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]   --> src/tests_rangetree.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |         assert!(r.has((i * 2)) == false);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!r.has((i * 2))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against true are unnecessary
[INFO] [stderr]   --> src/tests_rangetree.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 |         assert!(r.is_empty() == true);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `r.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against true are unnecessary
[INFO] [stderr]    --> src/tests_rangetree.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |         assert!(r.is_empty() == true);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `r.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "f831fc5b01f809b4b8593835ac1ba7759a4e6d1491c8a3ef62570a26225e2e0c"`
[INFO] running `"docker" "rm" "-f" "f831fc5b01f809b4b8593835ac1ba7759a4e6d1491c8a3ef62570a26225e2e0c"`
[INFO] [stdout] f831fc5b01f809b4b8593835ac1ba7759a4e6d1491c8a3ef62570a26225e2e0c