[INFO] cloning repository https://github.com/samgwise/bellbird-synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samgwise/bellbird-synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamgwise%2Fbellbird-synth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamgwise%2Fbellbird-synth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4592668724f4baf574d783fe24a7b2d7cbd7ac75
[INFO] checking samgwise/bellbird-synth against try#5ec4d3b0c83717313176eefa7d71e9d36dc83355 for 155501-infallible-never-with-reservation
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamgwise%2Fbellbird-synth" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samgwise/bellbird-synth
[INFO] finished tweaking git repo https://github.com/samgwise/bellbird-synth
[INFO] tweaked toml for git repo https://github.com/samgwise/bellbird-synth written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samgwise/bellbird-synth on toolchain 5ec4d3b0c83717313176eefa7d71e9d36dc83355
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samgwise/bellbird-synth 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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97b90be214589a6847b39a8eca8c73f791e750b8567c92a6507af4e5239a1d56
[INFO] running `Command { std: "docker" "start" "-a" "97b90be214589a6847b39a8eca8c73f791e750b8567c92a6507af4e5239a1d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97b90be214589a6847b39a8eca8c73f791e750b8567c92a6507af4e5239a1d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b90be214589a6847b39a8eca8c73f791e750b8567c92a6507af4e5239a1d56", kill_on_drop: false }`
[INFO] [stdout] 97b90be214589a6847b39a8eca8c73f791e750b8567c92a6507af4e5239a1d56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9186e165acda5a8d5ed4e0d54b55075918bc34c003fe512158a9b41d935f6517
[INFO] running `Command { std: "docker" "start" "-a" "9186e165acda5a8d5ed4e0d54b55075918bc34c003fe512158a9b41d935f6517", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
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[INFO] [stdout] warning: unused import: `self::fence::Fence`
[INFO] [stdout]   --> src/scalevec/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::fence::Fence;
[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: `self::stack::Stack`
[INFO] [stdout]   --> src/scalevec/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use self::stack::Stack;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::fence::Fence`
[INFO] [stdout]   --> src/scalevec/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::fence::Fence;
[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: `self::stack::Stack`
[INFO] [stdout]   --> src/scalevec/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use self::stack::Stack;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:888:51
[INFO] [stdout]     |
[INFO] [stdout] 888 | ...                   egui::Stroke::new(1.0, egui::Color32::from_rgb(80, 80, 90)),
[INFO] [stdout]     |                                         ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout]     = note: `#[warn(float_literal_f32_fallback)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:897:43
[INFO] [stdout]     |
[INFO] [stdout] 897 |                         egui::Stroke::new(2.0, egui::Color32::from_rgb(120, 120, 140)),
[INFO] [stdout]     |                                           ^^^ help: explicitly specify the type as `f32`: `2.0_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:911:43
[INFO] [stdout]     |
[INFO] [stdout] 911 |                         egui::Stroke::new(1.5, egui::Color32::from_rgb(100, 100, 120)),
[INFO] [stdout]     |                                           ^^^ help: explicitly specify the type as `f32`: `1.5_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:933:51
[INFO] [stdout]     |
[INFO] [stdout] 933 | ...                   egui::Stroke::new(3.0, chord_colour),
[INFO] [stdout]     |                                         ^^^ help: explicitly specify the type as `f32`: `3.0_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]     --> src/ui.rs:1400:70
[INFO] [stdout]      |
[INFO] [stdout] 1400 | ...   painter.rect_stroke(rect, 2.0, egui::Stroke::new(1.0, egui::Color32::from_rgb(100, 100, 100)), egui::StrokeKind::Outside);
[INFO] [stdout]      |                                                        ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]      = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]     --> src/ui.rs:1437:70
[INFO] [stdout]      |
[INFO] [stdout] 1437 | ...   painter.rect_stroke(rect, 2.0, egui::Stroke::new(1.0, egui::Color32::from_rgb(20, 20, 25)), egui::StrokeKind::Outside);
[INFO] [stdout]      |                                                        ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]      = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `peak` is never read
[INFO] [stdout]   --> src/audio.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 peak = 0.0;
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:888:51
[INFO] [stdout]     |
[INFO] [stdout] 888 | ...                   egui::Stroke::new(1.0, egui::Color32::from_rgb(80, 80, 90)),
[INFO] [stdout]     |                                         ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout]     = note: `#[warn(float_literal_f32_fallback)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:897:43
[INFO] [stdout]     |
[INFO] [stdout] 897 |                         egui::Stroke::new(2.0, egui::Color32::from_rgb(120, 120, 140)),
[INFO] [stdout]     |                                           ^^^ help: explicitly specify the type as `f32`: `2.0_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:911:43
[INFO] [stdout]     |
[INFO] [stdout] 911 |                         egui::Stroke::new(1.5, egui::Color32::from_rgb(100, 100, 120)),
[INFO] [stdout]     |                                           ^^^ help: explicitly specify the type as `f32`: `1.5_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]    --> src/ui.rs:933:51
[INFO] [stdout]     |
[INFO] [stdout] 933 | ...                   egui::Stroke::new(3.0, chord_colour),
[INFO] [stdout]     |                                         ^^^ help: explicitly specify the type as `f32`: `3.0_f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]     --> src/ui.rs:1400:70
[INFO] [stdout]      |
[INFO] [stdout] 1400 | ...   painter.rect_stroke(rect, 2.0, egui::Stroke::new(1.0, egui::Color32::from_rgb(100, 100, 100)), egui::StrokeKind::Outside);
[INFO] [stdout]      |                                                        ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]      = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]     --> src/ui.rs:1437:70
[INFO] [stdout]      |
[INFO] [stdout] 1437 | ...   painter.rect_stroke(rect, 2.0, egui::Stroke::new(1.0, egui::Color32::from_rgb(20, 20, 25)), egui::StrokeKind::Outside);
[INFO] [stdout]      |                                                        ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]      = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/scalevec/core.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout]  21 | impl ScaleVec {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 183 |     pub fn mirror_inversion(&self) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn retrograde(&self) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     pub fn augment_steps(&self, steps: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     pub fn augment_ratio(&self, ratio: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |     pub fn diminish_steps(&self, steps: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     pub fn diminish_ratio(&self, ratio: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 |     pub fn map_onto(&self, scale: &dyn Scale) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |     pub fn distance(&self, other: &ScaleVec) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `peak` is never read
[INFO] [stdout]   --> src/audio.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 peak = 0.0;
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `anchors` is never used
[INFO] [stdout]   --> src/keymap.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl KeyboardMap {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn anchors(&self) -> &BTreeMap<u8, i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `interval_vector` is never read
[INFO] [stdout]   --> src/scalevec/core.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct ScaleVec {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     interval_vector: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ScaleVec` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/scalevec/core.rs:52:12
[INFO] [stdout]     |
[INFO] [stdout]  21 | impl ScaleVec {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  52 |     pub fn repeat_interval(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  62 |     pub fn interval_vector(&self) -> &[f64] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     fn value_to_octave(&self, value: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn value_to_whole_step(&self, value: f64) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn value_to_sub_step(&self, value: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pub fn reflexive_step(&self, value: f64) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     pub fn mirror_inversion(&self) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn retrograde(&self) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     pub fn augment_steps(&self, steps: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     pub fn augment_ratio(&self, ratio: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |     pub fn diminish_steps(&self, steps: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     pub fn diminish_ratio(&self, ratio: f64) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 |     pub fn map_onto(&self, scale: &dyn Scale) -> ScaleVec {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |     pub fn distance(&self, other: &ScaleVec) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Fence` is never constructed
[INFO] [stdout]   --> src/scalevec/fence.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Fence {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/scalevec/fence.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Fence {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new(lower_limit: f64, upper_limit: f64, repeat_interval: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stack` is never constructed
[INFO] [stdout]   --> src/scalevec/stack.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Stack {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/scalevec/stack.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Stack {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 18 |     pub fn new(scales: Vec<Box<dyn Scale>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 49s
[INFO] running `Command { std: "docker" "inspect" "9186e165acda5a8d5ed4e0d54b55075918bc34c003fe512158a9b41d935f6517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9186e165acda5a8d5ed4e0d54b55075918bc34c003fe512158a9b41d935f6517", kill_on_drop: false }`
[INFO] [stdout] 9186e165acda5a8d5ed4e0d54b55075918bc34c003fe512158a9b41d935f6517
