[INFO] fetching crate inkmlrs 0.0.4...
[INFO] checking inkmlrs-0.0.4 against 1.95.0 for pr-155915
[INFO] extracting crate inkmlrs 0.0.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate inkmlrs 0.0.4
[INFO] finished tweaking crates.io crate inkmlrs 0.0.4
[INFO] tweaked toml for crates.io crate inkmlrs 0.0.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate inkmlrs 0.0.4 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate inkmlrs 0.0.4 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "bc6fb84658ffd8d7efcd09c6a536eb9d82f9ff446e9e92d46ba31454d7fd1e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc6fb84658ffd8d7efcd09c6a536eb9d82f9ff446e9e92d46ba31454d7fd1e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6fb84658ffd8d7efcd09c6a536eb9d82f9ff446e9e92d46ba31454d7fd1e0e", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "eac56ebb5ca9e39ae006377f2a1f46a6835617ab95c2a73b7996eb9f207f38e8", kill_on_drop: false }`
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[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]    Compiling cargo-platform v0.1.2
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[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWriter`
[INFO] [stdout]  --> src/inkml.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use xml::{EmitterConfig, EventWriter};
[INFO] [stdout]   |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/main.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::{BufReader, Write};
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWriter`
[INFO] [stdout]  --> src/inkml.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use xml::{EmitterConfig, EventWriter};
[INFO] [stdout]   |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/main.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::{BufReader, Write};
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ink`
[INFO] [stdout]    --> src/inkml.rs:117:65
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn write_definitions<W: Write>(w: &mut xml::EventWriter<W>, ink: &Ink) {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_ink`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/parse.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                         _ => {}
[INFO] [stdout]    |                         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/parse.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 69 |                         Node::Ink(ink) => {
[INFO] [stdout]    |                         -------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 75 |                         Node::Trace(trace) => match top {
[INFO] [stdout]    |                         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 83 |                         Node::TraceGroup(trace_group) => match top {
[INFO] [stdout]    |                         ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 91 |                         _ => {}
[INFO] [stdout]    |                         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ink`
[INFO] [stdout]    --> src/inkml.rs:117:65
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn write_definitions<W: Write>(w: &mut xml::EventWriter<W>, ink: &Ink) {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_ink`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let c = conf::Conf::new();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/parse.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                         _ => {}
[INFO] [stdout]    |                         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/parse.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 69 |                         Node::Ink(ink) => {
[INFO] [stdout]    |                         -------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 75 |                         Node::Trace(trace) => match top {
[INFO] [stdout]    |                         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 83 |                         Node::TraceGroup(trace_group) => match top {
[INFO] [stdout]    |                         ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 91 |                         _ => {}
[INFO] [stdout]    |                         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `button`
[INFO] [stdout]    --> src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         button: event::MouseButton,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         x: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         y: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `button`
[INFO] [stdout]    --> src/main.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         button: event::MouseButton,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         x: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         y: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xrel`
[INFO] [stdout]    --> src/main.rs:171:73
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn mouse_motion_event(&mut self, ctx: &mut Context, x: f32, y: f32, xrel: f32, yrel: f32) {
[INFO] [stdout]     |                                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_xrel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `yrel`
[INFO] [stdout]    --> src/main.rs:171:84
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn mouse_motion_event(&mut self, ctx: &mut Context, x: f32, y: f32, xrel: f32, yrel: f32) {
[INFO] [stdout]     |                                                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_yrel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keymod`
[INFO] [stdout]    --> src/main.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         keymod: KeyMods,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_keymod`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:110:21
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     draw_trace!(ctx, vertices)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     let _ = draw_trace!(ctx, vertices)
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let _ = draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         graphics::present(ctx);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let _ = graphics::present(ctx);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let _ = draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:179:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |             draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 179 |             let _ = draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:196:21
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     ink.write_to(&mut File::create(filename).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     let _ = ink.write_to(&mut File::create(filename).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     ink.write_to(&mut std::io::stdout());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     let _ = ink.write_to(&mut std::io::stdout());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let c = conf::Conf::new();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 | /         w.write(
[INFO] [stdout] 82 | |             XmlEvent::start_element("trace")
[INFO] [stdout] 83 | |                 .attr("contextRef", "#ctx0")
[INFO] [stdout] 84 | |                 .attr("brushRef", "#br0"),
[INFO] [stdout] 85 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let _ = w.write(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             w.write(XmlEvent::characters(&format!("{} {},", point[0], point[1])));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let _ = w.write(XmlEvent::characters(&format!("{} {},", point[0], point[1])));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         w.write(XmlEvent::end_element());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 | /         w.write(
[INFO] [stdout] 96 | |             XmlEvent::start_element("traceGroup")
[INFO] [stdout] 97 | |                 .attr("contextRef", "#ctx0")
[INFO] [stdout] 98 | |                 .attr("brushRef", "#br0"),
[INFO] [stdout] 99 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let _ = w.write(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         w.write(XmlEvent::start_element("definitions"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = w.write(XmlEvent::start_element("definitions"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         w.write(XmlEvent::start_element("context").attr("xml:id", "ctx0"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = w.write(XmlEvent::start_element("context").attr("xml:id", "ctx0"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         w.write(XmlEvent::start_element("inkSource").attr("xml:id", "inkSrc0"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let _ = w.write(XmlEvent::start_element("inkSource").attr("xml:id", "inkSrc0"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         w.write(XmlEvent::start_element("traceFormat"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let _ = w.write(XmlEvent::start_element("traceFormat"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 | /         w.write(
[INFO] [stdout] 124 | |             XmlEvent::start_element("channel")
[INFO] [stdout] 125 | |                 .attr("name", "X")
[INFO] [stdout] 126 | |                 .attr("type", "integer"),
[INFO] [stdout] 127 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let _ = w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `button`
[INFO] [stdout]    --> src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         button: event::MouseButton,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         x: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         y: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `button`
[INFO] [stdout]    --> src/main.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         button: event::MouseButton,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 | /         w.write(
[INFO] [stdout] 130 | |             XmlEvent::start_element("channel")
[INFO] [stdout] 131 | |                 .attr("name", "Y")
[INFO] [stdout] 132 | |                 .attr("type", "integer"),
[INFO] [stdout] 133 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         x: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         y: f32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let _ = w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         w.write(XmlEvent::end_element()); // traceFormat
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = w.write(XmlEvent::end_element()); // traceFormat
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         w.write(XmlEvent::end_element()); // inkSource
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let _ = w.write(XmlEvent::end_element()); // inkSource
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         w.write(XmlEvent::end_element()); // context
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let _ = w.write(XmlEvent::end_element()); // context
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         w.write(XmlEvent::start_element("brush").attr("xml:id", "br0"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let _ = w.write(XmlEvent::start_element("brush").attr("xml:id", "br0"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 | /         w.write(
[INFO] [stdout] 142 | |             XmlEvent::start_element("brushProperty")
[INFO] [stdout] 143 | |                 .attr("name", "width")
[INFO] [stdout] 144 | |                 .attr("value", "3")
[INFO] [stdout] 145 | |                 .attr("units", "mm"),
[INFO] [stdout] 146 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | /         w.write(
[INFO] [stdout] 149 | |             XmlEvent::start_element("brushProperty")
[INFO] [stdout] 150 | |                 .attr("name", "height")
[INFO] [stdout] 151 | |                 .attr("value", "3")
[INFO] [stdout] 152 | |                 .attr("units", "mm"),
[INFO] [stdout] 153 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         w.write(
[INFO] [stdout] 156 | |             XmlEvent::start_element("brushProperty")
[INFO] [stdout] 157 | |                 .attr("name", "color")
[INFO] [stdout] 158 | |                 .attr("value", "\\#FFFFFF"),
[INFO] [stdout] 159 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xrel`
[INFO] [stdout]    --> src/main.rs:171:73
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn mouse_motion_event(&mut self, ctx: &mut Context, x: f32, y: f32, xrel: f32, yrel: f32) {
[INFO] [stdout]     |                                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_xrel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         w.write(XmlEvent::end_element()); // brush
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let _ = w.write(XmlEvent::end_element()); // brush
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `yrel`
[INFO] [stdout]    --> src/main.rs:171:84
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn mouse_motion_event(&mut self, ctx: &mut Context, x: f32, y: f32, xrel: f32, yrel: f32) {
[INFO] [stdout]     |                                                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_yrel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         w.write(XmlEvent::end_element()); // definitions
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 163 |         let _ = w.write(XmlEvent::end_element()); // definitions
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 | /         writer.write(XmlEvent::StartDocument {
[INFO] [stdout] 171 | |             version: xml::common::XmlVersion::Version10,
[INFO] [stdout] 172 | |             encoding: Some("UTF-8"),
[INFO] [stdout] 173 | |             standalone: Some(true),
[INFO] [stdout] 174 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let _ = writer.write(XmlEvent::StartDocument {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keymod`
[INFO] [stdout]    --> src/main.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         keymod: KeyMods,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_keymod`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 | /                 writer.write(
[INFO] [stdout] 179 | |                     XmlEvent::start_element("ink").ns("inkml", "https://www.w3.org/TR/InkML"),
[INFO] [stdout] 180 | |                 );
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 178 |                 let _ = writer.write(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         writer.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let _ = writer.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:110:21
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     draw_trace!(ctx, vertices)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     let _ = draw_trace!(ctx, vertices)
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let _ = draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         graphics::present(ctx);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let _ = graphics::present(ctx);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let _ = draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:179:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |             draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 179 |             let _ = draw_trace!(ctx, self.current_trace);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:196:21
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     ink.write_to(&mut File::create(filename).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     let _ = ink.write_to(&mut File::create(filename).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     ink.write_to(&mut std::io::stdout());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     let _ = ink.write_to(&mut std::io::stdout());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 | /         w.write(
[INFO] [stdout] 82 | |             XmlEvent::start_element("trace")
[INFO] [stdout] 83 | |                 .attr("contextRef", "#ctx0")
[INFO] [stdout] 84 | |                 .attr("brushRef", "#br0"),
[INFO] [stdout] 85 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let _ = w.write(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             w.write(XmlEvent::characters(&format!("{} {},", point[0], point[1])));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let _ = w.write(XmlEvent::characters(&format!("{} {},", point[0], point[1])));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         w.write(XmlEvent::end_element());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/inkml.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 | /         w.write(
[INFO] [stdout] 96 | |             XmlEvent::start_element("traceGroup")
[INFO] [stdout] 97 | |                 .attr("contextRef", "#ctx0")
[INFO] [stdout] 98 | |                 .attr("brushRef", "#br0"),
[INFO] [stdout] 99 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let _ = w.write(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         w.write(XmlEvent::start_element("definitions"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = w.write(XmlEvent::start_element("definitions"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         w.write(XmlEvent::start_element("context").attr("xml:id", "ctx0"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = w.write(XmlEvent::start_element("context").attr("xml:id", "ctx0"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         w.write(XmlEvent::start_element("inkSource").attr("xml:id", "inkSrc0"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let _ = w.write(XmlEvent::start_element("inkSource").attr("xml:id", "inkSrc0"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         w.write(XmlEvent::start_element("traceFormat"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let _ = w.write(XmlEvent::start_element("traceFormat"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 | /         w.write(
[INFO] [stdout] 124 | |             XmlEvent::start_element("channel")
[INFO] [stdout] 125 | |                 .attr("name", "X")
[INFO] [stdout] 126 | |                 .attr("type", "integer"),
[INFO] [stdout] 127 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let _ = w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 | /         w.write(
[INFO] [stdout] 130 | |             XmlEvent::start_element("channel")
[INFO] [stdout] 131 | |                 .attr("name", "Y")
[INFO] [stdout] 132 | |                 .attr("type", "integer"),
[INFO] [stdout] 133 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let _ = w.write(XmlEvent::end_element()); // channel
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         w.write(XmlEvent::end_element()); // traceFormat
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let _ = w.write(XmlEvent::end_element()); // traceFormat
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         w.write(XmlEvent::end_element()); // inkSource
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let _ = w.write(XmlEvent::end_element()); // inkSource
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         w.write(XmlEvent::end_element()); // context
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let _ = w.write(XmlEvent::end_element()); // context
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         w.write(XmlEvent::start_element("brush").attr("xml:id", "br0"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let _ = w.write(XmlEvent::start_element("brush").attr("xml:id", "br0"));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 | /         w.write(
[INFO] [stdout] 142 | |             XmlEvent::start_element("brushProperty")
[INFO] [stdout] 143 | |                 .attr("name", "width")
[INFO] [stdout] 144 | |                 .attr("value", "3")
[INFO] [stdout] 145 | |                 .attr("units", "mm"),
[INFO] [stdout] 146 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | /         w.write(
[INFO] [stdout] 149 | |             XmlEvent::start_element("brushProperty")
[INFO] [stdout] 150 | |                 .attr("name", "height")
[INFO] [stdout] 151 | |                 .attr("value", "3")
[INFO] [stdout] 152 | |                 .attr("units", "mm"),
[INFO] [stdout] 153 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         w.write(
[INFO] [stdout] 156 | |             XmlEvent::start_element("brushProperty")
[INFO] [stdout] 157 | |                 .attr("name", "color")
[INFO] [stdout] 158 | |                 .attr("value", "\\#FFFFFF"),
[INFO] [stdout] 159 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let _ = w.write(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         w.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let _ = w.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         w.write(XmlEvent::end_element()); // brush
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let _ = w.write(XmlEvent::end_element()); // brush
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         w.write(XmlEvent::end_element()); // definitions
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 163 |         let _ = w.write(XmlEvent::end_element()); // definitions
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 | /         writer.write(XmlEvent::StartDocument {
[INFO] [stdout] 171 | |             version: xml::common::XmlVersion::Version10,
[INFO] [stdout] 172 | |             encoding: Some("UTF-8"),
[INFO] [stdout] 173 | |             standalone: Some(true),
[INFO] [stdout] 174 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let _ = writer.write(XmlEvent::StartDocument {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 | /                 writer.write(
[INFO] [stdout] 179 | |                     XmlEvent::start_element("ink").ns("inkml", "https://www.w3.org/TR/InkML"),
[INFO] [stdout] 180 | |                 );
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 178 |                 let _ = writer.write(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/inkml.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         writer.write(XmlEvent::end_element());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let _ = writer.write(XmlEvent::end_element());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.51s
[INFO] running `Command { std: "docker" "inspect" "eac56ebb5ca9e39ae006377f2a1f46a6835617ab95c2a73b7996eb9f207f38e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eac56ebb5ca9e39ae006377f2a1f46a6835617ab95c2a73b7996eb9f207f38e8", kill_on_drop: false }`
[INFO] [stdout] eac56ebb5ca9e39ae006377f2a1f46a6835617ab95c2a73b7996eb9f207f38e8
