[INFO] cloning repository https://github.com/nbardiuk/ray-tracer-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nbardiuk/ray-tracer-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbardiuk%2Fray-tracer-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbardiuk%2Fray-tracer-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf69d38ace625032e30f9e35496e3fa892636a37
[INFO] checking nbardiuk/ray-tracer-rust against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbardiuk%2Fray-tracer-rust" "/workspace/builds/worker-57/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-57/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nbardiuk/ray-tracer-rust on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nbardiuk/ray-tracer-rust
[INFO] finished tweaking git repo https://github.com/nbardiuk/ray-tracer-rust
[INFO] tweaked toml for git repo https://github.com/nbardiuk/ray-tracer-rust written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate git repo https://github.com/nbardiuk/ray-tracer-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "23ef8c2d3ad2d9028ac547d84cbb0583f49dbaf937ed6bb11bde34408a9639b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23ef8c2d3ad2d9028ac547d84cbb0583f49dbaf937ed6bb11bde34408a9639b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ef8c2d3ad2d9028ac547d84cbb0583f49dbaf937ed6bb11bde34408a9639b1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cbd8f72e6152171208a255626b360d6e9d007a9527833ccd8822cca009d1539
[INFO] running `Command { std: "docker" "start" "-a" "8cbd8f72e6152171208a255626b360d6e9d007a9527833ccd8822cca009d1539", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   num v0.1.42: bigint, complex, default, num-bigint, num-complex, num-rational, rational, rustc-serialize
[INFO] [stderr] 
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking hamcrest2 v0.2.6
[INFO] [stderr]     Checking ray-tracer v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/shapes.rs (4 fixes)
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/bounds.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn transform(&self, transform: &Matrix) -> Bounds {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render`
[INFO] [stdout]   --> src/camera.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn render(self: &Camera, world: World) -> Canvas {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cone`
[INFO] [stdout]    --> src/cones.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn cone() -> Cone {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cube`
[INFO] [stdout]    --> src/cubes.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub fn cube() -> Cube {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cylinder`
[INFO] [stdout]    --> src/cylinders.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn cylinder() -> Cylinder {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child`
[INFO] [stdout]   --> src/groups.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_child<T: 'static>(&mut self, child: T) -> Arc<SyncShape>
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child_rc`
[INFO] [stdout]   --> src/groups.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn add_child_rc(&mut self, c: Arc<SyncShape>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `group`
[INFO] [stdout]    --> src/groups.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn group() -> Group {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/matrices.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn is_invertible(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `default_group`
[INFO] [stdout]   --> src/obj_file.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn default_group(&self) -> Arc<Group> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stripe_pattern`
[INFO] [stdout]   --> src/patterns.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn stripe_pattern(a: Color, b: Color) -> Stripe {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gradient_pattern`
[INFO] [stdout]   --> src/patterns.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn gradient_pattern(a: Color, b: Color) -> Gradient {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ring_pattern`
[INFO] [stdout]    --> src/patterns.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn ring_pattern(a: Color, b: Color) -> Ring {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sphere`
[INFO] [stdout]   --> src/spheres.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn sphere() -> Sphere {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `glass_sphere`
[INFO] [stdout]   --> src/spheres.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn glass_sphere() -> Sphere {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scaling`
[INFO] [stdout]   --> src/transformations.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn scaling(x: f64, y: f64, z: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_y`
[INFO] [stdout]   --> src/transformations.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn rotation_y(r: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_z`
[INFO] [stdout]   --> src/transformations.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn rotation_z(r: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shearing`
[INFO] [stdout]   --> src/transformations.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn shearing(xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_point`
[INFO] [stdout]   --> src/tuples.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn is_point(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_vector`
[INFO] [stdout]   --> src/tuples.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_vector(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.98s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ray-tracer v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/bounds.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn transform(&self, transform: &Matrix) -> Bounds {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render`
[INFO] [stdout]   --> src/camera.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn render(self: &Camera, world: World) -> Canvas {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cone`
[INFO] [stdout]    --> src/cones.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn cone() -> Cone {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cube`
[INFO] [stdout]    --> src/cubes.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub fn cube() -> Cube {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cylinder`
[INFO] [stdout]    --> src/cylinders.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn cylinder() -> Cylinder {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child`
[INFO] [stdout]   --> src/groups.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_child<T: 'static>(&mut self, child: T) -> Arc<SyncShape>
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child_rc`
[INFO] [stdout]   --> src/groups.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn add_child_rc(&mut self, c: Arc<SyncShape>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `group`
[INFO] [stdout]    --> src/groups.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn group() -> Group {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/matrices.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn is_invertible(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `default_group`
[INFO] [stdout]   --> src/obj_file.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn default_group(&self) -> Arc<Group> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stripe_pattern`
[INFO] [stdout]   --> src/patterns.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn stripe_pattern(a: Color, b: Color) -> Stripe {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gradient_pattern`
[INFO] [stdout]   --> src/patterns.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn gradient_pattern(a: Color, b: Color) -> Gradient {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ring_pattern`
[INFO] [stdout]    --> src/patterns.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn ring_pattern(a: Color, b: Color) -> Ring {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sphere`
[INFO] [stdout]   --> src/spheres.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn sphere() -> Sphere {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `glass_sphere`
[INFO] [stdout]   --> src/spheres.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn glass_sphere() -> Sphere {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scaling`
[INFO] [stdout]   --> src/transformations.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn scaling(x: f64, y: f64, z: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_y`
[INFO] [stdout]   --> src/transformations.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn rotation_y(r: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_z`
[INFO] [stdout]   --> src/transformations.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn rotation_z(r: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shearing`
[INFO] [stdout]   --> src/transformations.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn shearing(xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_point`
[INFO] [stdout]   --> src/tuples.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn is_point(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_vector`
[INFO] [stdout]   --> src/tuples.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_vector(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.34s
[INFO] running `Command { std: "docker" "inspect" "8cbd8f72e6152171208a255626b360d6e9d007a9527833ccd8822cca009d1539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cbd8f72e6152171208a255626b360d6e9d007a9527833ccd8822cca009d1539", kill_on_drop: false }`
[INFO] [stdout] 8cbd8f72e6152171208a255626b360d6e9d007a9527833ccd8822cca009d1539