[INFO] cloning repository https://github.com/sameer/raster2svg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sameer/raster2svg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsameer%2Fraster2svg", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b28b7e0302fab7a26fae1555afbb549f6ac308d1
[INFO] building sameer/raster2svg against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsameer%2Fraster2svg" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
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[INFO] started tweaking git repo https://github.com/sameer/raster2svg
[INFO] finished tweaking git repo https://github.com/sameer/raster2svg
[INFO] tweaked toml for git repo https://github.com/sameer/raster2svg written to /workspace/builds/worker-0-tc1/source/Cargo.toml
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[INFO] crate git repo https://github.com/sameer/raster2svg already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: variable `first_derivative_weight_sum` is assigned to, but never used
[INFO] [stdout]    --> src/filter.rs:325:21
[INFO] [stdout]     |
[INFO] [stdout] 325 |             let mut first_derivative_weight_sum = 0.;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_first_derivative_weight_sum` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `HULL_EPSILON`
[INFO] [stdout]     |
[INFO] [stdout] 325 -             let mut first_derivative_weight_sum = 0.;
[INFO] [stdout] 325 +             let mut voronoi::CellProperties::<T>::calculate::HULL_EPSILON = 0.;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `laplacian_of_gaussian_weight_sum` is assigned to, but never used
[INFO] [stdout]    --> src/filter.rs:327:21
[INFO] [stdout]     |
[INFO] [stdout] 327 |             let mut laplacian_of_gaussian_weight_sum = 0.;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_laplacian_of_gaussian_weight_sum` instead
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `HULL_EPSILON`
[INFO] [stdout]     |
[INFO] [stdout] 327 -             let mut laplacian_of_gaussian_weight_sum = 0.;
[INFO] [stdout] 327 +             let mut voronoi::CellProperties::<T>::calculate::HULL_EPSILON = 0.;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_STANDARD_DEVIATIONS` is never used
[INFO] [stdout]   --> src/filter.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const NUM_STANDARD_DEVIATIONS: f64 = 3.;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sobel_operator` is never used
[INFO] [stdout]   --> src/filter.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn sobel_operator(image: ArrayView2<f64>) -> Array2<Vector<f64>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `edge_tangent_flow` is never used
[INFO] [stdout]   --> src/filter.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn edge_tangent_flow(image: ArrayView2<f64>) -> Array2<Vector<f64>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flow_based_difference_of_gaussians` is never used
[INFO] [stdout]   --> src/filter.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn flow_based_difference_of_gaussians(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EdgeFlowEstimate` is never constructed
[INFO] [stdout]    --> src/filter.rs:258:12
[INFO] [stdout]     |
[INFO] [stdout] 258 | pub struct EdgeFlowEstimate {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `edge_flow_estimation` is never used
[INFO] [stdout]    --> src/filter.rs:273:8
[INFO] [stdout]     |
[INFO] [stdout] 273 | pub fn edge_flow_estimation(image: ArrayView2<f64>) -> EdgeFlowEstimate {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `step_edge_detection` is never used
[INFO] [stdout]    --> src/filter.rs:302:8
[INFO] [stdout]     |
[INFO] [stdout] 302 | pub fn step_edge_detection(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gaussian_pdf` is never used
[INFO] [stdout]    --> src/filter.rs:408:4
[INFO] [stdout]     |
[INFO] [stdout] 408 | fn gaussian_pdf(x: f64, sigma: f64) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gaussian_pdf_first_derivative` is never used
[INFO] [stdout]    --> src/filter.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn gaussian_pdf_first_derivative(x: f64, sigma: f64) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gaussian_cdf` is never used
[INFO] [stdout]    --> src/filter.rs:420:4
[INFO] [stdout]     |
[INFO] [stdout] 420 | fn gaussian_cdf(x: f64, sigma: f64) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `erf` is never used
[INFO] [stdout]    --> src/filter.rs:424:4
[INFO] [stdout]     |
[INFO] [stdout] 424 | fn erf(x: f64) -> f64 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convolve` is never used
[INFO] [stdout]    --> src/filter.rs:443:4
[INFO] [stdout]     |
[INFO] [stdout] 443 | fn convolve<'a>(image: ArrayView2<'a, f64>, kernel: ArrayView2<'a, f64>) -> Array2<f64> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Direct` is never constructed
[INFO] [stdout]   --> src/optimize/direct.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Direct<F>
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DirectState` is never constructed
[INFO] [stdout]   --> src/optimize/direct.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct DirectState {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SizeMetric` is never used
[INFO] [stdout]   --> src/optimize/direct.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum SizeMetric {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/optimize/direct.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Group` is never constructed
[INFO] [stdout]   --> src/optimize/direct.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct Group {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fmin` is never used
[INFO] [stdout]   --> src/optimize/direct.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl Group {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 81 |     fn fmin(&self) -> f64 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `run`, `initialize`, `extract_potentially_optimal`, `split`, and `denormalize_point` are never used
[INFO] [stdout]    --> src/optimize/direct.rs:90:12
[INFO] [stdout]     |
[INFO] [stdout]  86 | / impl<F> Direct<F>
[INFO] [stdout]  87 | | where
[INFO] [stdout]  88 | |     F: Fn(ArrayView1<f64>) -> f64,
[INFO] [stdout]     | |__________________________________- methods in this implementation
[INFO] [stdout]  89 |   {
[INFO] [stdout]  90 |       pub fn run(&self) -> (Array1<f64>, f64) {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |       fn initialize(&self, state: &mut DirectState) {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |       fn extract_potentially_optimal(
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 241 |       fn split(
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 407 |       fn denormalize_point(&self, hypercube_point: ArrayView1<Rational64>) -> Array1<f64> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdaptiveEpsilon` is never constructed
[INFO] [stdout]    --> src/optimize/direct.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct AdaptiveEpsilon {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `value`, `improved`, and `no_improvement` are never used
[INFO] [stdout]    --> src/optimize/direct.rs:425:8
[INFO] [stdout]     |
[INFO] [stdout] 424 | impl AdaptiveEpsilon {
[INFO] [stdout]     | -------------------- associated items in this implementation
[INFO] [stdout] 425 |     fn new(enabled: bool) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 433 |     fn value(&self) -> f64 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 444 |     fn improved(&mut self, iteration: usize) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 449 |     fn no_improvement(&mut self, iteration: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render_fdog_based` is never used
[INFO] [stdout]   --> src/render.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn render_fdog_based(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "fbc402c30f368b4fee670121dcffaf4ba566b0db0f45a68f440322fa3414a033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbc402c30f368b4fee670121dcffaf4ba566b0db0f45a68f440322fa3414a033", kill_on_drop: false }`
[INFO] [stdout] fbc402c30f368b4fee670121dcffaf4ba566b0db0f45a68f440322fa3414a033
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 456432c174fff332c8faf58519e138c6354d09953611b9f07dd43c1918fafcf2
[INFO] running `Command { std: "docker" "start" "-a" "456432c174fff332c8faf58519e138c6354d09953611b9f07dd43c1918fafcf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling raster2svg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `first_derivative_weight_sum` is assigned to, but never used
[INFO] [stdout]    --> src/filter.rs:325:21
[INFO] [stdout]     |
[INFO] [stdout] 325 |             let mut first_derivative_weight_sum = 0.;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_first_derivative_weight_sum` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `HULL_EPSILON`
[INFO] [stdout]     |
[INFO] [stdout] 325 -             let mut first_derivative_weight_sum = 0.;
[INFO] [stdout] 325 +             let mut voronoi::CellProperties::<T>::calculate::HULL_EPSILON = 0.;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `laplacian_of_gaussian_weight_sum` is assigned to, but never used
[INFO] [stdout]    --> src/filter.rs:327:21
[INFO] [stdout]     |
[INFO] [stdout] 327 |             let mut laplacian_of_gaussian_weight_sum = 0.;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_laplacian_of_gaussian_weight_sum` instead
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `HULL_EPSILON`
[INFO] [stdout]     |
[INFO] [stdout] 327 -             let mut laplacian_of_gaussian_weight_sum = 0.;
[INFO] [stdout] 327 +             let mut voronoi::CellProperties::<T>::calculate::HULL_EPSILON = 0.;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_STANDARD_DEVIATIONS` is never used
[INFO] [stdout]   --> src/filter.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const NUM_STANDARD_DEVIATIONS: f64 = 3.;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sobel_operator` is never used
[INFO] [stdout]   --> src/filter.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn sobel_operator(image: ArrayView2<f64>) -> Array2<Vector<f64>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `edge_tangent_flow` is never used
[INFO] [stdout]   --> src/filter.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn edge_tangent_flow(image: ArrayView2<f64>) -> Array2<Vector<f64>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flow_based_difference_of_gaussians` is never used
[INFO] [stdout]   --> src/filter.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn flow_based_difference_of_gaussians(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EdgeFlowEstimate` is never constructed
[INFO] [stdout]    --> src/filter.rs:258:12
[INFO] [stdout]     |
[INFO] [stdout] 258 | pub struct EdgeFlowEstimate {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `edge_flow_estimation` is never used
[INFO] [stdout]    --> src/filter.rs:273:8
[INFO] [stdout]     |
[INFO] [stdout] 273 | pub fn edge_flow_estimation(image: ArrayView2<f64>) -> EdgeFlowEstimate {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `step_edge_detection` is never used
[INFO] [stdout]    --> src/filter.rs:302:8
[INFO] [stdout]     |
[INFO] [stdout] 302 | pub fn step_edge_detection(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gaussian_pdf` is never used
[INFO] [stdout]    --> src/filter.rs:408:4
[INFO] [stdout]     |
[INFO] [stdout] 408 | fn gaussian_pdf(x: f64, sigma: f64) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gaussian_pdf_first_derivative` is never used
[INFO] [stdout]    --> src/filter.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn gaussian_pdf_first_derivative(x: f64, sigma: f64) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gaussian_cdf` is never used
[INFO] [stdout]    --> src/filter.rs:420:4
[INFO] [stdout]     |
[INFO] [stdout] 420 | fn gaussian_cdf(x: f64, sigma: f64) -> f64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `erf` is never used
[INFO] [stdout]    --> src/filter.rs:424:4
[INFO] [stdout]     |
[INFO] [stdout] 424 | fn erf(x: f64) -> f64 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `L2` and `Linf` are never constructed
[INFO] [stdout]   --> src/optimize/direct.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum SizeMetric {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 43 |     L2,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 44 |     /// Largest dimension
[INFO] [stdout] 45 |     Linf,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render_fdog_based` is never used
[INFO] [stdout]   --> src/render.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn render_fdog_based(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.17s
[INFO] running `Command { std: "docker" "inspect" "456432c174fff332c8faf58519e138c6354d09953611b9f07dd43c1918fafcf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456432c174fff332c8faf58519e138c6354d09953611b9f07dd43c1918fafcf2", kill_on_drop: false }`
[INFO] [stdout] 456432c174fff332c8faf58519e138c6354d09953611b9f07dd43c1918fafcf2