[INFO] cloning repository https://github.com/coreh/universe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coreh/universe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreh%2Funiverse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreh%2Funiverse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e90e30ad0351dd91e3f9f81df16b195d1bdb66c
[INFO] checking coreh/universe/5e90e30ad0351dd91e3f9f81df16b195d1bdb66c against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreh%2Funiverse" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coreh/universe on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coreh/universe
[INFO] finished tweaking git repo https://github.com/coreh/universe
[INFO] tweaked toml for git repo https://github.com/coreh/universe written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/coreh/universe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded magenta v0.1.1
[INFO] [stderr]   Downloaded gl v0.6.3
[INFO] [stderr]   Downloaded log v0.3.8
[INFO] [stderr]   Downloaded magenta-sys v0.1.1
[INFO] [stderr]   Downloaded quick-error v1.2.0
[INFO] [stderr]   Downloaded libc v0.2.29
[INFO] [stderr]   Downloaded cgmath v0.15.0
[INFO] [stderr]   Downloaded rand v0.3.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5db9325473fc918236b35f34823569c0556d6b4651bdf25c7b491dc3f9bf2c73
[INFO] running `Command { std: "docker" "start" "-a" "5db9325473fc918236b35f34823569c0556d6b4651bdf25c7b491dc3f9bf2c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5db9325473fc918236b35f34823569c0556d6b4651bdf25c7b491dc3f9bf2c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db9325473fc918236b35f34823569c0556d6b4651bdf25c7b491dc3f9bf2c73", kill_on_drop: false }`
[INFO] [stdout] 5db9325473fc918236b35f34823569c0556d6b4651bdf25c7b491dc3f9bf2c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eb6f9b61de52a63f05ad8f5c5b4ed4d2983f54260955d71688d27abdf13a9ec
[INFO] running `Command { std: "docker" "start" "-a" "3eb6f9b61de52a63f05ad8f5c5b4ed4d2983f54260955d71688d27abdf13a9ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stderr]    Compiling universe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking quick-error v1.2.0
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking cgmath v0.15.0
[INFO] [stderr]     Checking sdl2 v0.30.0
[INFO] [stderr]    Compiling gl v0.6.3
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/octree.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn walk(&mut self, callback: &(Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout]    |                                       ^                                                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -     pub fn walk(&mut self, callback: &(Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout] 28 +     pub fn walk(&mut self, callback: &Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64)) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/reference_frame.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     static ref PRIVILEGED_REFERENCE_FRAME: Arc<ReferenceFrame> = {
[INFO] [stdout] 15 | |         Arc::from(ReferenceFrame {
[INFO] [stdout] 16 | |             label: String::from("Privileged"),
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/reference_frame.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     static ref PRIVILEGED_REFERENCE_FRAME: Arc<ReferenceFrame> = {
[INFO] [stdout] 15 | |         Arc::from(ReferenceFrame {
[INFO] [stdout] 16 | |             label: String::from("Privileged"),
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/octree.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn walk(&mut self, callback: &(Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout]    |                                       ^                                                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -     pub fn walk(&mut self, callback: &(Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout] 28 +     pub fn walk(&mut self, callback: &Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64)) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/isosurface.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn isosurface<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a)) -> Self;
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn isosurface<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a)) -> Self;
[INFO] [stdout]   |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn isosurface<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a)) -> Geometry {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn isosurface<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a)) -> Geometry {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn isosurface<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a)) -> Vec<Vertex> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn isosurface<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a)) -> Vec<Vertex> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:56:22
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn test<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> bool {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn test<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> bool {
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn vertex<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> Vertex {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn vertex<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> Vertex {
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn front<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn front<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:121:22
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn back<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn back<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:131:23
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn right<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn right<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:141:22
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn left<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn left<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn top<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn top<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:161:24
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn bottom<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn bottom<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/octree.rs:28:40
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn walk(&mut self, callback: &(Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn walk(&mut self, callback: &(dyn Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/octree.rs:95:54
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn walk(&mut self, info: &OctreeInfo, callback: &Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64), path: &mut Vec<i...
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn walk(&mut self, info: &OctreeInfo, callback: &dyn Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64), path: &mut Vec<i8>, level: i32, x: f64, y: f64, z: f64) {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error!{
[INFO] [stdout] 6  | |     #[derive(Debug)]
[INFO] [stdout] 7  | |     pub enum Error {
[INFO] [stdout] 8  | |         Nul {
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/reference_frame.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     static ref PRIVILEGED_REFERENCE_FRAME: Arc<ReferenceFrame> = {
[INFO] [stdout] 15 | |         Arc::from(ReferenceFrame {
[INFO] [stdout] 16 | |             label: String::from("Privileged"),
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/reference_frame.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     static ref PRIVILEGED_REFERENCE_FRAME: Arc<ReferenceFrame> = {
[INFO] [stdout] 15 | |         Arc::from(ReferenceFrame {
[INFO] [stdout] 16 | |             label: String::from("Privileged"),
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/isosurface.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn isosurface<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a)) -> Self;
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn isosurface<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a)) -> Self;
[INFO] [stdout]   |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn isosurface<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a)) -> Geometry {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn isosurface<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a)) -> Geometry {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn isosurface<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a)) -> Vec<Vertex> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn isosurface<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a)) -> Vec<Vertex> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:56:22
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn test<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> bool {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn test<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> bool {
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/isosurface.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn vertex<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> Vertex {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn vertex<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> Vertex {
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn front<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn front<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:121:22
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn back<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn back<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:131:23
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn right<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn right<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:141:22
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn left<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn left<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn top<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn top<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/isosurface.rs:161:24
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn bottom<'a>(field: &(Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn bottom<'a>(field: &(dyn Fn(f64, f64, f64) -> f64 + 'a), x: f64, y: f64, z: f64) -> [Vertex; 6] {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/octree.rs:28:40
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn walk(&mut self, callback: &(Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn walk(&mut self, callback: &(dyn Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64))) {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/octree.rs:95:54
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn walk(&mut self, info: &OctreeInfo, callback: &Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64), path: &mut Vec<i...
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn walk(&mut self, info: &OctreeInfo, callback: &dyn Fn(&mut OctreeNode, &OctreeInfo, &mut Vec<i8>, i32, f64, f64, f64), path: &mut Vec<i8>, level: i32, x: f64, y: f64, z: f64) {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.70s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "3eb6f9b61de52a63f05ad8f5c5b4ed4d2983f54260955d71688d27abdf13a9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb6f9b61de52a63f05ad8f5c5b4ed4d2983f54260955d71688d27abdf13a9ec", kill_on_drop: false }`
[INFO] [stdout] 3eb6f9b61de52a63f05ad8f5c5b4ed4d2983f54260955d71688d27abdf13a9ec