[INFO] crate spatial 0.2.0-rc2 is already in cache
[INFO] testing spatial-0.2.0-rc2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate spatial 0.2.0-rc2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate spatial 0.2.0-rc2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spatial 0.2.0-rc2
[INFO] finished tweaking crates.io crate spatial 0.2.0-rc2
[INFO] tweaked toml for crates.io crate spatial 0.2.0-rc2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f7b7208fb61e13b7e52f23cff6ae7b0925e78385ff33f5f3b87a11b7dbc00e1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4f7b7208fb61e13b7e52f23cff6ae7b0925e78385ff33f5f3b87a11b7dbc00e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f7b7208fb61e13b7e52f23cff6ae7b0925e78385ff33f5f3b87a11b7dbc00e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7b7208fb61e13b7e52f23cff6ae7b0925e78385ff33f5f3b87a11b7dbc00e1", kill_on_drop: false }`
[INFO] [stdout] 4f7b7208fb61e13b7e52f23cff6ae7b0925e78385ff33f5f3b87a11b7dbc00e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fa975077ccc6e790af47a1d78c76d36c25af594250fbc918fd6cc072fb02b15
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0fa975077ccc6e790af47a1d78c76d36c25af594250fbc918fd6cc072fb02b15", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling ordered-float v0.2.3
[INFO] [stderr]    Compiling generic-array v0.3.2
[INFO] [stderr]    Compiling spatial v0.2.0-rc2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:27:32
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn insert_into_root(&self, mut root: NODE, leaf: MbrLeaf<P, DIM, LG, T>) -> NODE;
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |          mut root: NODE,
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 |          mut f: F)
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tree/mbr/leafgeometry.rs:82:58
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 |distance, (&(x, y), &z)| distance + pow((((x + y)/two) - z), 2));
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tree/mbr/leafgeometry.rs:134:66
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 |distance, (&(x1, y1), &x2, &y2)| distance + pow(((x1 + y1)/two - (x2 + y2)/two), 2));
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tree/mbr/leafgeometry.rs:186:32
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 distance + pow(((x1 + y1) / two - (x2 + y2) / two), 2)
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:13:31
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn retain_part(&mut self, mut f: F) -> usize;
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn retain_mut_part(&mut self, mut f: F) -> usize;
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn retain_and_split_off(&mut self, mut f: F) -> Option<Vec<T>>;
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn retain_and_append(&mut self, m: &mut Vec<T>, mut f: F);
[INFO] [stdout]    |                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn retain_mut(&mut self, mut f: F);
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mbr`
[INFO] [stdout]   --> src/tree/mbr/index/r.rs:48:53
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn pick_seed<V: MbrLeafGeometry<P, DIM>>(&self, mbr: &Rect<P, DIM>, children: &Vec<V>) -> (usize, usize) {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mbr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree/mbr/map.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |             let mut unsafe_leaf = unsafe {
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "0fa975077ccc6e790af47a1d78c76d36c25af594250fbc918fd6cc072fb02b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa975077ccc6e790af47a1d78c76d36c25af594250fbc918fd6cc072fb02b15", kill_on_drop: false }`
[INFO] [stdout] 0fa975077ccc6e790af47a1d78c76d36c25af594250fbc918fd6cc072fb02b15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d99b33883cd62db9ecf6e999c65b062e3f11bdcc17c77f0f5a4e03b5af8bc22d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d99b33883cd62db9ecf6e999c65b062e3f11bdcc17c77f0f5a4e03b5af8bc22d", kill_on_drop: false }`
[INFO] [stderr]    Compiling spatial v0.2.0-rc2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:27:32
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn insert_into_root(&self, mut root: NODE, leaf: MbrLeaf<P, DIM, LG, T>) -> NODE;
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |          mut root: NODE,
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 |          mut f: F)
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tree/mbr/leafgeometry.rs:82:58
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 |distance, (&(x, y), &z)| distance + pow((((x + y)/two) - z), 2));
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tree/mbr/leafgeometry.rs:134:66
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 |distance, (&(x1, y1), &x2, &y2)| distance + pow(((x1 + y1)/two - (x2 + y2)/two), 2));
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tree/mbr/leafgeometry.rs:186:32
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 distance + pow(((x1 + y1) / two - (x2 + y2) / two), 2)
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:13:31
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn retain_part(&mut self, mut f: F) -> usize;
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn retain_mut_part(&mut self, mut f: F) -> usize;
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn retain_and_split_off(&mut self, mut f: F) -> Option<Vec<T>>;
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn retain_and_append(&mut self, m: &mut Vec<T>, mut f: F);
[INFO] [stdout]    |                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn retain_mut(&mut self, mut f: F);
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mbr`
[INFO] [stdout]   --> src/tree/mbr/index/r.rs:48:53
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn pick_seed<V: MbrLeafGeometry<P, DIM>>(&self, mbr: &Rect<P, DIM>, children: &Vec<V>) -> (usize, usize) {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mbr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree/mbr/map.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |             let mut unsafe_leaf = unsafe {
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:27:32
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn insert_into_root(&self, mut root: NODE, leaf: MbrLeaf<P, DIM, LG, T>) -> NODE;
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |          mut root: NODE,
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/tree/mbr/index/mod.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 |          mut f: F)
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tree/mbr/leafgeometry.rs:82:58
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 |distance, (&(x, y), &z)| distance + pow((((x + y)/two) - z), 2));
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tree/mbr/leafgeometry.rs:134:66
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 |distance, (&(x1, y1), &x2, &y2)| distance + pow(((x1 + y1)/two - (x2 + y2)/two), 2));
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tree/mbr/leafgeometry.rs:186:32
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 distance + pow(((x1 + y1) / two - (x2 + y2) / two), 2)
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:13:31
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn retain_part(&mut self, mut f: F) -> usize;
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn retain_mut_part(&mut self, mut f: F) -> usize;
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn retain_and_split_off(&mut self, mut f: F) -> Option<Vec<T>>;
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn retain_and_append(&mut self, m: &mut Vec<T>, mut f: F);
[INFO] [stdout]    |                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/vecext.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn retain_mut(&mut self, mut f: F);
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mbr`
[INFO] [stdout]   --> src/tree/mbr/index/r.rs:48:53
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn pick_seed<V: MbrLeafGeometry<P, DIM>>(&self, mbr: &Rect<P, DIM>, children: &Vec<V>) -> (usize, usize) {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mbr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree/mbr/map.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |             let mut unsafe_leaf = unsafe {
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "d99b33883cd62db9ecf6e999c65b062e3f11bdcc17c77f0f5a4e03b5af8bc22d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d99b33883cd62db9ecf6e999c65b062e3f11bdcc17c77f0f5a4e03b5af8bc22d", kill_on_drop: false }`
[INFO] [stdout] d99b33883cd62db9ecf6e999c65b062e3f11bdcc17c77f0f5a4e03b5af8bc22d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47f5d331c9b7fe9288ff81fb3fff67a9b808e209d6154afb66432ad762e22c29
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "47f5d331c9b7fe9288ff81fb3fff67a9b808e209d6154afb66432ad762e22c29", kill_on_drop: false }`
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/tree/mbr/index/mod.rs:27:32
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn insert_into_root(&self, mut root: NODE, leaf: MbrLeaf<P, DIM, LG, T>) -> NODE;
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/tree/mbr/index/mod.rs:46:10
[INFO] [stderr]    |
[INFO] [stderr] 46 |          mut root: NODE,
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/tree/mbr/index/mod.rs:27:32
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn insert_into_root(&self, mut root: NODE, leaf: MbrLeaf<P, DIM, LG, T>) -> NODE;
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/tree/mbr/index/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 |          mut f: F)
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tree/mbr/leafgeometry.rs:82:58
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 |distance, (&(x, y), &z)| distance + pow((((x + y)/two) - z), 2));
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tree/mbr/leafgeometry.rs:134:66
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 |distance, (&(x1, y1), &x2, &y2)| distance + pow(((x1 + y1)/two - (x2 + y2)/two), 2));
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/tree/mbr/index/mod.rs:46:10
[INFO] [stderr]    |
[INFO] [stderr] 46 |          mut root: NODE,
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/tree/mbr/index/mod.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 |          mut f: F)
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tree/mbr/leafgeometry.rs:82:58
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 |distance, (&(x, y), &z)| distance + pow((((x + y)/two) - z), 2));
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tree/mbr/leafgeometry.rs:186:32
[INFO] [stderr]     |
[INFO] [stderr] 186 |                 distance + pow(((x1 + y1) / two - (x2 + y2) / two), 2)
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:13:31
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn retain_part(&mut self, mut f: F) -> usize;
[INFO] [stderr]    |                               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:19:35
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn retain_mut_part(&mut self, mut f: F) -> usize;
[INFO] [stderr]    |                                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tree/mbr/leafgeometry.rs:134:66
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 |distance, (&(x1, y1), &x2, &y2)| distance + pow(((x1 + y1)/two - (x2 + y2)/two), 2));
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tree/mbr/leafgeometry.rs:186:32
[INFO] [stderr]     |
[INFO] [stderr] 186 |                 distance + pow(((x1 + y1) / two - (x2 + y2) / two), 2)
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:13:31
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn retain_part(&mut self, mut f: F) -> usize;
[INFO] [stderr]    |                               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:19:35
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn retain_mut_part(&mut self, mut f: F) -> usize;
[INFO] [stderr]    |                                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn retain_and_split_off(&mut self, mut f: F) -> Option<Vec<T>>;
[INFO] [stderr]    |                                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:31:53
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn retain_and_append(&mut self, m: &mut Vec<T>, mut f: F);
[INFO] [stderr]    |                                                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:37:30
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn retain_mut(&mut self, mut f: F);
[INFO] [stderr]    |                              ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn retain_and_split_off(&mut self, mut f: F) -> Option<Vec<T>>;
[INFO] [stderr]    |                                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:31:53
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn retain_and_append(&mut self, m: &mut Vec<T>, mut f: F);
[INFO] [stderr]    |                                                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/vecext.rs:37:30
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn retain_mut(&mut self, mut f: F);
[INFO] [stderr]    |                              ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mbr`
[INFO] [stderr]   --> src/tree/mbr/index/r.rs:48:53
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn pick_seed<V: MbrLeafGeometry<P, DIM>>(&self, mbr: &Rect<P, DIM>, children: &Vec<V>) -> (usize, usize) {
[INFO] [stderr]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mbr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tree/mbr/map.rs:419:17
[INFO] [stderr]     |
[INFO] [stderr] 419 |             let mut unsafe_leaf = unsafe {
[INFO] [stderr]     |                 ----^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mbr`
[INFO] [stderr]   --> src/tree/mbr/index/r.rs:48:53
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn pick_seed<V: MbrLeafGeometry<P, DIM>>(&self, mbr: &Rect<P, DIM>, children: &Vec<V>) -> (usize, usize) {
[INFO] [stderr]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mbr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tree/mbr/map.rs:419:17
[INFO] [stderr]     |
[INFO] [stderr] 419 |             let mut unsafe_leaf = unsafe {
[INFO] [stderr]     |                 ----^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/spatial-c645b3104f9e7fcd
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tree::mbr::leafgeometry::tests::line_segment ... ok
[INFO] [stdout] test vecext::tests::retain_mut ... ok
[INFO] [stdout] test vecext::tests::retain_and_split_off ... ok
[INFO] [stdout] test tree::mbr::leafgeometry::tests::rect ... ok
[INFO] [stdout] test vecext::tests::retain_and_append ... ok
[INFO] [stdout] test tree::mbr::index::rstar::tests::margin ... ok
[INFO] [stdout] test tree::mbr::leafgeometry::tests::point ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rstar-a0c392cdef81a588
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rtree-f88e8ec33637ac18
[INFO] [stdout] test rstar_integration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test rlinear_integration ... ok
[INFO] [stderr]    Doc-tests spatial
[INFO] [stdout] test rquadratic_integration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "47f5d331c9b7fe9288ff81fb3fff67a9b808e209d6154afb66432ad762e22c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47f5d331c9b7fe9288ff81fb3fff67a9b808e209d6154afb66432ad762e22c29", kill_on_drop: false }`
[INFO] [stdout] 47f5d331c9b7fe9288ff81fb3fff67a9b808e209d6154afb66432ad762e22c29