[INFO] fetching crate niko 0.1.8...
[INFO] testing niko-0.1.8 against 1.55.0 for beta-1.56-1
[INFO] extracting crate niko 0.1.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate niko 0.1.8 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate niko 0.1.8
[INFO] finished tweaking crates.io crate niko 0.1.8
[INFO] tweaked toml for crates.io crate niko 0.1.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gl_generator v0.14.0
[INFO] [stderr]   Downloaded khronos_api v3.1.0
[INFO] [stderr]   Downloaded slotmap v0.4.3
[INFO] [stderr]   Downloaded glow v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24c76781428d93837c110185e7067657133b1856836c9bb915b8eaabe85fa5cf
[INFO] running `Command { std: "docker" "start" "-a" "24c76781428d93837c110185e7067657133b1856836c9bb915b8eaabe85fa5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24c76781428d93837c110185e7067657133b1856836c9bb915b8eaabe85fa5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24c76781428d93837c110185e7067657133b1856836c9bb915b8eaabe85fa5cf", kill_on_drop: false }`
[INFO] [stdout] 24c76781428d93837c110185e7067657133b1856836c9bb915b8eaabe85fa5cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 163f3d061815d7a5b49ea7129992a5258ac5009fde9b3664ea4ccabf3084bf01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "163f3d061815d7a5b49ea7129992a5258ac5009fde9b3664ea4ccabf3084bf01", kill_on_drop: false }`
[INFO] [stderr]    Compiling glow v0.5.0
[INFO] [stderr]    Compiling web-sys v0.3.54
[INFO] [stderr]    Compiling niko v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `check_error`
[INFO] [stdout]  --> src/graphics/shader.rs:1:55
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Error, NikoError, graphics::{ShaderError, check_error, ShaderId, ProgramId}};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WebGl2RenderingContext`
[INFO] [stdout]   --> src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     WebGl2RenderingContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glow::Context as GlowContext`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use glow::Context as GlowContext;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glow::HasContext`
[INFO] [stdout]  --> src/images.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use glow::HasContext;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `canvas`
[INFO] [stdout]   --> src/lib.rs:71:19
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn create_context(canvas: web_sys::HtmlCanvasElement) -> Result<glow::Context, JsValue> {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_canvas`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/images.rs:89:45
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stdout]    |                                             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gl`
[INFO] [stdout]   --> src/images.rs:89:54
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_gl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidEnum`
[INFO] [stdout]  --> src/graphics/check_error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     InvalidEnum,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidValue`
[INFO] [stdout]   --> src/graphics/check_error.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidValue,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidOperation`
[INFO] [stdout]   --> src/graphics/check_error.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidOperation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidFramebufferOperation`
[INFO] [stdout]   --> src/graphics/check_error.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InvalidFramebufferOperation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OutOfMemory`
[INFO] [stdout]   --> src/graphics/check_error.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     OutOfMemory,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ContextLost`
[INFO] [stdout]   --> src/graphics/check_error.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     ContextLost,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unknown`
[INFO] [stdout]   --> src/graphics/check_error.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_error`
[INFO] [stdout]   --> src/graphics/check_error.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn check_error(gl: &Context) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.93s
[INFO] running `Command { std: "docker" "inspect" "163f3d061815d7a5b49ea7129992a5258ac5009fde9b3664ea4ccabf3084bf01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "163f3d061815d7a5b49ea7129992a5258ac5009fde9b3664ea4ccabf3084bf01", kill_on_drop: false }`
[INFO] [stdout] 163f3d061815d7a5b49ea7129992a5258ac5009fde9b3664ea4ccabf3084bf01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22204fbb88c4d11e14caae906c3d63dae8767d57dd270a61c1dd70f8e47dcfbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "22204fbb88c4d11e14caae906c3d63dae8767d57dd270a61c1dd70f8e47dcfbb", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `check_error`
[INFO] [stdout]  --> src/graphics/shader.rs:1:55
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Error, NikoError, graphics::{ShaderError, check_error, ShaderId, ProgramId}};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WebGl2RenderingContext`
[INFO] [stdout]   --> src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     WebGl2RenderingContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glow::Context as GlowContext`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use glow::Context as GlowContext;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glow::HasContext`
[INFO] [stdout]  --> src/images.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use glow::HasContext;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `canvas`
[INFO] [stdout]   --> src/lib.rs:71:19
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn create_context(canvas: web_sys::HtmlCanvasElement) -> Result<glow::Context, JsValue> {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_canvas`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/images.rs:89:45
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stdout]    |                                             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gl`
[INFO] [stdout]   --> src/images.rs:89:54
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_gl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidEnum`
[INFO] [stdout]  --> src/graphics/check_error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     InvalidEnum,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidValue`
[INFO] [stdout]   --> src/graphics/check_error.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidValue,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling niko v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `InvalidOperation`
[INFO] [stdout]   --> src/graphics/check_error.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidOperation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidFramebufferOperation`
[INFO] [stdout]   --> src/graphics/check_error.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InvalidFramebufferOperation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OutOfMemory`
[INFO] [stdout]   --> src/graphics/check_error.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     OutOfMemory,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ContextLost`
[INFO] [stdout]   --> src/graphics/check_error.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     ContextLost,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unknown`
[INFO] [stdout]   --> src/graphics/check_error.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_error`
[INFO] [stdout]   --> src/graphics/check_error.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn check_error(gl: &Context) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `check_error`
[INFO] [stdout]  --> src/graphics/shader.rs:1:55
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Error, NikoError, graphics::{ShaderError, check_error, ShaderId, ProgramId}};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WebGl2RenderingContext`
[INFO] [stdout]   --> src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     WebGl2RenderingContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glow::Context as GlowContext`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use glow::Context as GlowContext;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glow::HasContext`
[INFO] [stdout]  --> src/images.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use glow::HasContext;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `canvas`
[INFO] [stdout]   --> src/lib.rs:71:19
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn create_context(canvas: web_sys::HtmlCanvasElement) -> Result<glow::Context, JsValue> {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_canvas`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/images.rs:89:45
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stdout]    |                                             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gl`
[INFO] [stdout]   --> src/images.rs:89:54
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_gl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidEnum`
[INFO] [stdout]  --> src/graphics/check_error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     InvalidEnum,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidValue`
[INFO] [stdout]   --> src/graphics/check_error.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidValue,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidOperation`
[INFO] [stdout]   --> src/graphics/check_error.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidOperation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidFramebufferOperation`
[INFO] [stdout]   --> src/graphics/check_error.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InvalidFramebufferOperation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OutOfMemory`
[INFO] [stdout]   --> src/graphics/check_error.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     OutOfMemory,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ContextLost`
[INFO] [stdout]   --> src/graphics/check_error.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     ContextLost,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unknown`
[INFO] [stdout]   --> src/graphics/check_error.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_error`
[INFO] [stdout]   --> src/graphics/check_error.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn check_error(gl: &Context) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "22204fbb88c4d11e14caae906c3d63dae8767d57dd270a61c1dd70f8e47dcfbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22204fbb88c4d11e14caae906c3d63dae8767d57dd270a61c1dd70f8e47dcfbb", kill_on_drop: false }`
[INFO] [stdout] 22204fbb88c4d11e14caae906c3d63dae8767d57dd270a61c1dd70f8e47dcfbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97ffcd1578a0835efbac40a9fc05897b4a01d729bde38cb18bd47920240f5062
[INFO] running `Command { std: "docker" "start" "-a" "97ffcd1578a0835efbac40a9fc05897b4a01d729bde38cb18bd47920240f5062", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `check_error`
[INFO] [stderr]  --> src/graphics/shader.rs:1:55
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{Error, NikoError, graphics::{ShaderError, check_error, ShaderId, ProgramId}};
[INFO] [stderr]   |                                                       ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `WebGl2RenderingContext`
[INFO] [stderr]   --> src/lib.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     WebGl2RenderingContext,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glow::Context as GlowContext`
[INFO] [stderr]   --> src/lib.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 | use glow::Context as GlowContext;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glow::HasContext`
[INFO] [stderr]  --> src/images.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use glow::HasContext;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `canvas`
[INFO] [stderr]   --> src/lib.rs:71:19
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn create_context(canvas: web_sys::HtmlCanvasElement) -> Result<glow::Context, JsValue> {
[INFO] [stderr]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_canvas`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/images.rs:89:45
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stderr]    |                                             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gl`
[INFO] [stderr]   --> src/images.rs:89:54
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub(crate) fn finish_loading(&mut self, id: u32, gl: &glow::Context) -> Result<(), Error> {
[INFO] [stderr]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_gl`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidEnum`
[INFO] [stderr]  --> src/graphics/check_error.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     InvalidEnum,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidValue`
[INFO] [stderr]   --> src/graphics/check_error.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     InvalidValue,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidOperation`
[INFO] [stderr]   --> src/graphics/check_error.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     InvalidOperation,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidFramebufferOperation`
[INFO] [stderr]   --> src/graphics/check_error.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     InvalidFramebufferOperation,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OutOfMemory`
[INFO] [stderr]   --> src/graphics/check_error.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     OutOfMemory,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ContextLost`
[INFO] [stderr]   --> src/graphics/check_error.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     ContextLost,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unknown`
[INFO] [stderr]   --> src/graphics/check_error.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_error`
[INFO] [stderr]   --> src/graphics/check_error.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn check_error(gl: &Context) -> Result<(), Error> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `niko` (lib) generated 15 warnings
[INFO] [stderr] warning: `niko` (lib test) generated 15 warnings (15 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/niko-f591cc07d0cb0c9c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test rectangle::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests niko
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "97ffcd1578a0835efbac40a9fc05897b4a01d729bde38cb18bd47920240f5062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ffcd1578a0835efbac40a9fc05897b4a01d729bde38cb18bd47920240f5062", kill_on_drop: false }`
[INFO] [stdout] 97ffcd1578a0835efbac40a9fc05897b4a01d729bde38cb18bd47920240f5062