[INFO] cloning repository https://github.com/photon-garden/recreating-the-mathematical-sciences
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/photon-garden/recreating-the-mathematical-sciences" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphoton-garden%2Frecreating-the-mathematical-sciences", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphoton-garden%2Frecreating-the-mathematical-sciences'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df50b3616e23ca8fb741479752c43e9014a03c6c
[INFO] checking photon-garden/recreating-the-mathematical-sciences against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphoton-garden%2Frecreating-the-mathematical-sciences" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] started tweaking git repo https://github.com/photon-garden/recreating-the-mathematical-sciences
[INFO] finished tweaking git repo https://github.com/photon-garden/recreating-the-mathematical-sciences
[INFO] tweaked toml for git repo https://github.com/photon-garden/recreating-the-mathematical-sciences written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/photon-garden/recreating-the-mathematical-sciences on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/photon-garden/recreating-the-mathematical-sciences 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" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "af61aaaf00d63a811bd56e4e9151831036e2018272a37c416ccb19221568aee6", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking nanorand v0.5.2
[INFO] [stderr]     Checking smithay-clipboard v0.4.0
[INFO] [stderr]     Checking winit v0.22.2
[INFO] [stderr]     Checking copypasta v0.6.3
[INFO] [stderr]     Checking conrod_core v0.70.0
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking conrod_wgpu v0.70.0
[INFO] [stderr]     Checking nannou v0.15.0
[INFO] [stderr]     Checking photon_garden v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::contour::*`
[INFO] [stdout]  --> src/crates/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::contour::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `my::*`
[INFO] [stdout]  --> src/crates/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use my::*;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::app::*`
[INFO] [stdout]  --> src/extensions/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::app::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::easings::*`
[INFO] [stdout]  --> src/extensions/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::easings::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::hsl::*`
[INFO] [stdout]   --> src/extensions/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::hsl::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::iterator::*`
[INFO] [stdout]   --> src/extensions/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use self::iterator::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::rbg_hue::*`
[INFO] [stdout]   --> src/extensions/mod.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub use self::rbg_hue::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::srgb8::*`
[INFO] [stdout]   --> src/extensions/mod.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub use self::srgb8::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::draw::*`
[INFO] [stdout]   --> src/extensions/mod.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub use self::draw::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::components::*`
[INFO] [stdout]  --> src/prelude.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use crate::components::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::svg::*`
[INFO] [stdout]  --> src/prelude.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use crate::svg::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::contour::*`
[INFO] [stdout]  --> src/crates/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::contour::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `my::*`
[INFO] [stdout]  --> src/crates/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use my::*;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::app::*`
[INFO] [stdout]  --> src/extensions/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::app::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::easings::*`
[INFO] [stdout]  --> src/extensions/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::easings::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::hsl::*`
[INFO] [stdout]   --> src/extensions/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::hsl::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::iterator::*`
[INFO] [stdout]   --> src/extensions/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use self::iterator::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::rbg_hue::*`
[INFO] [stdout]   --> src/extensions/mod.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub use self::rbg_hue::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::srgb8::*`
[INFO] [stdout]   --> src/extensions/mod.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub use self::srgb8::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::draw::*`
[INFO] [stdout]   --> src/extensions/mod.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub use self::draw::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::components::*`
[INFO] [stdout]  --> src/prelude.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use crate::components::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::svg::*`
[INFO] [stdout]  --> src/prelude.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use crate::svg::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]  --> src/components/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn new(params: Params) -> Artwork {
[INFO] [stdout]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]  --> src/components/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn new(params: Params) -> Artwork {
[INFO] [stdout]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_point` is assigned to, but never used
[INFO] [stdout]   --> src/svg.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut current_point = pt2(0.0f32, 0.0f32);
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current_point` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_point` is never read
[INFO] [stdout]   --> src/svg.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |                         current_point = point;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_point` is never read
[INFO] [stdout]   --> src/svg.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |                         current_point = point;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `position`
[INFO] [stdout]   --> src/svg.rs:52:45
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     Command::HorizontalLine(position, params) => {
[INFO] [stdout]    |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/svg.rs:52:55
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     Command::HorizontalLine(position, params) => {
[INFO] [stdout]    |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `position`
[INFO] [stdout]   --> src/svg.rs:65:43
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     Command::VerticalLine(position, params) => {
[INFO] [stdout]    |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/svg.rs:65:53
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     Command::VerticalLine(position, params) => {
[INFO] [stdout]    |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:72:11
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn update(app: &App, model: &mut Model, _update: Update) {}
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `model`
[INFO] [stdout]   --> src/main.rs:72:22
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn update(app: &App, model: &mut Model, _update: Update) {}
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_model`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/extensions/draw.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<PathStroke>;
[INFO] [stdout]    |                  ^^^^^                           ---------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<'_, PathStroke>;
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/extensions/draw.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<PathStroke> {
[INFO] [stdout]    |                  ^^^^^                           ---------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<'_, PathStroke> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_point` is assigned to, but never used
[INFO] [stdout]   --> src/svg.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut current_point = pt2(0.0f32, 0.0f32);
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current_point` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_point` is never read
[INFO] [stdout]   --> src/svg.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |                         current_point = point;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_point` is never read
[INFO] [stdout]   --> src/svg.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |                         current_point = point;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `position`
[INFO] [stdout]   --> src/svg.rs:52:45
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     Command::HorizontalLine(position, params) => {
[INFO] [stdout]    |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/svg.rs:52:55
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     Command::HorizontalLine(position, params) => {
[INFO] [stdout]    |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `position`
[INFO] [stdout]   --> src/svg.rs:65:43
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     Command::VerticalLine(position, params) => {
[INFO] [stdout]    |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/svg.rs:65:53
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     Command::VerticalLine(position, params) => {
[INFO] [stdout]    |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/main.rs:72:11
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn update(app: &App, model: &mut Model, _update: Update) {}
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `model`
[INFO] [stdout]   --> src/main.rs:72:22
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn update(app: &App, model: &mut Model, _update: Update) {}
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_model`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/extensions/draw.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<PathStroke>;
[INFO] [stdout]    |                  ^^^^^                           ---------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<'_, PathStroke>;
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/extensions/draw.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<PathStroke> {
[INFO] [stdout]    |                  ^^^^^                           ---------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn polylines(&self, num_polylines: usize) -> PolylineDrawings<'_, PathStroke> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5, fs_extra v1.2.0, svg v0.10.0
[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" "e8fd05b5bec47cc7b0b816a2d4eb52435355d2a93253920cd1c7c083c183fe49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8fd05b5bec47cc7b0b816a2d4eb52435355d2a93253920cd1c7c083c183fe49", kill_on_drop: false }`
[INFO] [stdout] e8fd05b5bec47cc7b0b816a2d4eb52435355d2a93253920cd1c7c083c183fe49
