[INFO] cloning repository https://github.com/glennw/test-webrender
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/glennw/test-webrender" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglennw%2Ftest-webrender", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglennw%2Ftest-webrender'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e901a5c0d3ef4944b531015b2aeb129d7b6946c2
[INFO] testing glennw/test-webrender against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglennw%2Ftest-webrender" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/glennw/test-webrender on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/glennw/test-webrender
[INFO] removed path dependency webrender from git repo https://github.com/glennw/test-webrender
[INFO] finished tweaking git repo https://github.com/glennw/test-webrender
[INFO] tweaked toml for git repo https://github.com/glennw/test-webrender written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/glennw/test-webrender already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (webrender) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/servo/rust-png`
[INFO] [stderr]     Updating git repository `https://github.com/servo/rust-stb-image`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (webrender) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 710116c81127dc732fa44042b453f2f55402c8002eb30006f620d0844b996c25
[INFO] running `Command { std: "docker" "start" "-a" "710116c81127dc732fa44042b453f2f55402c8002eb30006f620d0844b996c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "710116c81127dc732fa44042b453f2f55402c8002eb30006f620d0844b996c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "710116c81127dc732fa44042b453f2f55402c8002eb30006f620d0844b996c25", kill_on_drop: false }`
[INFO] [stdout] 710116c81127dc732fa44042b453f2f55402c8002eb30006f620d0844b996c25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5439974cfde9dcafc51eedcff787aa62d62f166050033f22fc62aa6b8032d35
[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" "d5439974cfde9dcafc51eedcff787aa62d62f166050033f22fc62aa6b8032d35", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (webrender) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling png-sys v1.6.16 (https://github.com/servo/rust-png#ffbf5bbd)
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling libz-sys v0.1.9
[INFO] [stderr]    Compiling png v0.1.0 (https://github.com/servo/rust-png#ffbf5bbd)
[INFO] [stderr]    Compiling stb_image v0.2.2 (https://github.com/servo/rust-stb-image#e98b84bb)
[INFO] [stderr]    Compiling debug_unreachable v0.0.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling gleam v0.12.2
[INFO] [stderr]    Compiling euclid v0.22.1
[INFO] [stderr]    Compiling serde v0.6.15
[INFO] [stderr]    Compiling webrender v0.61.0
[INFO] [stderr]    Compiling freetype v0.4.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling gleam v0.6.19
[INFO] [stderr]    Compiling glutin v0.25.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_shared v0.1.12
[INFO] [stderr]    Compiling string_cache v0.1.17
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling peek-poke-derive v0.2.1
[INFO] [stderr]    Compiling cstr-macros v0.1.6
[INFO] [stderr]    Compiling malloc_size_of_derive v0.1.1
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling cstr v0.1.7
[INFO] [stderr]    Compiling euclid v0.20.14
[INFO] [stderr]    Compiling app_units v0.7.1
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling wr_malloc_size_of v0.1.0
[INFO] [stderr]    Compiling peek-poke v0.2.0
[INFO] [stderr]    Compiling plane-split v0.15.0
[INFO] [stderr]    Compiling webrender_api v0.61.0
[INFO] [stderr]    Compiling test-webrender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `webrender::StackingContext`, `webrender::DisplayListBuilder`, `webrender::PipelineId`
[INFO] [stdout]   --> src/main.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | use webrender::{StackingContext, DisplayListBuilder, PipelineId};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]    |                 |                |                   |
[INFO] [stdout]    |                 |                |                   no `PipelineId` in the root
[INFO] [stdout]    |                 |                |                   help: a similar name exists in the module: `PipelineInfo`
[INFO] [stdout]    |                 |                no `DisplayListBuilder` in the root
[INFO] [stdout]    |                 no `StackingContext` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `webrender::StackingLevel`, `webrender::Epoch`, `webrender::GradientStop`, `webrender::ClipRegion`
[INFO] [stdout]   --> src/main.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 | use webrender::{StackingLevel, Epoch, GradientStop, ClipRegion};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^  ^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^ no `ClipRegion` in the root
[INFO] [stdout]    |                 |              |      |
[INFO] [stdout]    |                 |              |      no `GradientStop` in the root
[INFO] [stdout]    |                 |              no `Epoch` in the root
[INFO] [stdout]    |                 no `StackingLevel` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `webrender::Au`, `webrender::ColorF`, `webrender::GlyphInstance`, `webrender::ImageFormat`, `webrender::BorderSide`, `webrender::BorderRadius`, `webrender::BorderStyle`
[INFO] [stdout]   --> src/main.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | use webrender::{Au, ColorF, GlyphInstance, ImageFormat, BorderSide, BorderRadius, BorderStyle};
[INFO] [stdout]    |                 ^^  ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^ no `BorderStyle` in the root
[INFO] [stdout]    |                 |   |       |              |            |           |
[INFO] [stdout]    |                 |   |       |              |            |           no `BorderRadius` in the root
[INFO] [stdout]    |                 |   |       |              |            no `BorderSide` in the root
[INFO] [stdout]    |                 |   |       |              no `ImageFormat` in the root
[INFO] [stdout]    |                 |   |       no `GlyphInstance` in the root
[INFO] [stdout]    |                 |   no `ColorF` in the root
[INFO] [stdout]    |                 no `Au` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `euclid::Matrix4`
[INFO] [stdout]   --> src/main.rs:28:37
[INFO] [stdout]    |
[INFO] [stdout] 28 | use euclid::{Point2D, Size2D, Rect, Matrix4};
[INFO] [stdout]    |                                     ^^^^^^^ no `Matrix4` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `ScrollLayerId` in `webrender`
[INFO] [stdout]    --> src/main.rs:313:55
[INFO] [stdout]     |
[INFO] [stdout] 313 |     let mut sc = StackingContext::new(Some(webrender::ScrollLayerId::new(0)),
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^ could not find `ScrollLayerId` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `MixBlendMode` in `webrender`
[INFO] [stdout]    --> src/main.rs:320:50
[INFO] [stdout]     |
[INFO] [stdout] 320 | ...                   webrender::MixBlendMode::Normal);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ could not find `MixBlendMode` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `MixBlendMode` in `webrender`
[INFO] [stdout]    --> src/main.rs:333:51
[INFO] [stdout]     |
[INFO] [stdout] 333 | ...                   webrender::MixBlendMode::Normal);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ could not find `MixBlendMode` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `ScrollLayerId` in `webrender`
[INFO] [stdout]    --> src/main.rs:368:56
[INFO] [stdout]     |
[INFO] [stdout] 368 |     let mut sc0 = StackingContext::new(Some(webrender::ScrollLayerId::new(0)),
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^ could not find `ScrollLayerId` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `MixBlendMode` in `webrender`
[INFO] [stdout]    --> src/main.rs:375:51
[INFO] [stdout]     |
[INFO] [stdout] 375 | ...                   webrender::MixBlendMode::Normal);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ could not find `MixBlendMode` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `MixBlendMode` in `webrender`
[INFO] [stdout]    --> src/main.rs:384:51
[INFO] [stdout]     |
[INFO] [stdout] 384 | ...                   webrender::MixBlendMode::Difference);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ could not find `MixBlendMode` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `MixBlendMode` in `webrender`
[INFO] [stdout]    --> src/main.rs:394:51
[INFO] [stdout]     |
[INFO] [stdout] 394 | ...                   webrender::MixBlendMode::Difference);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ could not find `MixBlendMode` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `MixBlendMode` in `webrender`
[INFO] [stdout]    --> src/main.rs:404:51
[INFO] [stdout]     |
[INFO] [stdout] 404 | ...                   webrender::MixBlendMode::Difference);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ could not find `MixBlendMode` in `webrender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Event` in `glutin`
[INFO] [stdout]    --> src/main.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |             glutin::Event::Closed => break,
[INFO] [stdout]     |                     ^^^^^ could not find `Event` in `glutin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Event` in `glutin`
[INFO] [stdout]    --> src/main.rs:464:21
[INFO] [stdout]     |
[INFO] [stdout] 464 |             glutin::Event::KeyboardInput(_element_state, scan_code, _virtual_key_code) => {
[INFO] [stdout]     |                     ^^^^^ could not find `Event` in `glutin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `WindowProxy` in crate `glutin`
[INFO] [stdout]    --> src/main.rs:149:27
[INFO] [stdout]     |
[INFO] [stdout] 149 |     window_proxy: glutin::WindowProxy,
[INFO] [stdout]     |                           ^^^^^^^^^^^ not found in `glutin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `WindowProxy` in crate `glutin`
[INFO] [stdout]    --> src/main.rs:153:34
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn new(window_proxy: glutin::WindowProxy) -> Notifier {
[INFO] [stdout]     |                                  ^^^^^^^^^^^ not found in `glutin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `RenderNotifier` in crate `webrender`
[INFO] [stdout]    --> src/main.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 | impl webrender::RenderNotifier for Notifier {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ not found in `webrender`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]     |
[INFO] [stdout] 13  | use webrender::api::RenderNotifier;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RenderApi` in crate `webrender`
[INFO] [stdout]     --> src/main.rs:167:27
[INFO] [stdout]      |
[INFO] [stdout] 167  | fn test1(api: &webrender::RenderApi,
[INFO] [stdout]      |                           ^^^^^^^^^
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/webrender-0.61.0/src/renderer.rs:1787:1
[INFO] [stdout]      |
[INFO] [stdout] 1787 | pub struct Renderer {
[INFO] [stdout]      | ------------------- similarly named struct `Renderer` defined here
[INFO] [stdout]      |
[INFO] [stdout] help: a struct with a similar name exists
[INFO] [stdout]      |
[INFO] [stdout] 167  | fn test1(api: &webrender::Renderer,
[INFO] [stdout]      |                           ^^^^^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]      |
[INFO] [stdout] 13   | use webrender::api::RenderApi;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `StackingContext` in crate `webrender`
[INFO] [stdout]    --> src/main.rs:169:37
[INFO] [stdout]     |
[INFO] [stdout] 169 |          height: u32) -> webrender::StackingContext {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^ not found in `webrender`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 13  | use webrender::api::StackingContext;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RenderApi` in crate `webrender`
[INFO] [stdout]     --> src/main.rs:341:27
[INFO] [stdout]      |
[INFO] [stdout] 341  | fn test2(api: &webrender::RenderApi,
[INFO] [stdout]      |                           ^^^^^^^^^
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/webrender-0.61.0/src/renderer.rs:1787:1
[INFO] [stdout]      |
[INFO] [stdout] 1787 | pub struct Renderer {
[INFO] [stdout]      | ------------------- similarly named struct `Renderer` defined here
[INFO] [stdout]      |
[INFO] [stdout] help: a struct with a similar name exists
[INFO] [stdout]      |
[INFO] [stdout] 341  | fn test2(api: &webrender::Renderer,
[INFO] [stdout]      |                           ^^^^^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]      |
[INFO] [stdout] 13   | use webrender::api::RenderApi;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `StackingContext` in crate `webrender`
[INFO] [stdout]    --> src/main.rs:343:37
[INFO] [stdout]     |
[INFO] [stdout] 343 |          height: u32) -> webrender::StackingContext {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^ not found in `webrender`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 13  | use webrender::api::StackingContext;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `WindowBuilder` in `glutin`
[INFO] [stdout]    --> src/main.rs:415:26
[INFO] [stdout]     |
[INFO] [stdout] 415 |     let window = glutin::WindowBuilder::new()
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ not found in `glutin`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 13  | use glutin::window::WindowBuilder;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `load_with` in module `gl`
[INFO] [stdout]    --> src/main.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 423 |         gl::load_with(|symbol| window.get_proc_address(symbol));
[INFO] [stdout]     |             ^^^^^^^^^ not found in `gl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `clear_color` in module `gl`
[INFO] [stdout]    --> src/main.rs:424:13
[INFO] [stdout]     |
[INFO] [stdout] 424 |         gl::clear_color(0.3, 0.0, 0.0, 1.0);
[INFO] [stdout]     |             ^^^^^^^^^^^ not found in `gl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `GetString` in module `gl`
[INFO] [stdout]    --> src/main.rs:428:39
[INFO] [stdout]     |
[INFO] [stdout] 428 |         let data = CStr::from_ptr(gl::GetString(gl::VERSION) as *const _).to_bytes().to_vec();
[INFO] [stdout]     |                                       ^^^^^^^^^ not found in `gl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `renderer` is private
[INFO] [stdout]    --> src/main.rs:26:16
[INFO] [stdout]     |
[INFO] [stdout] 26  | use webrender::renderer;
[INFO] [stdout]     |                ^^^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `renderer` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/webrender-0.61.0/src/lib.rs:118:1
[INFO] [stdout]     |
[INFO] [stdout] 118 | mod renderer;
[INFO] [stdout]     | ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(step_by)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 29 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0432, E0433, E0554, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-webrender`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d5439974cfde9dcafc51eedcff787aa62d62f166050033f22fc62aa6b8032d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5439974cfde9dcafc51eedcff787aa62d62f166050033f22fc62aa6b8032d35", kill_on_drop: false }`
[INFO] [stdout] d5439974cfde9dcafc51eedcff787aa62d62f166050033f22fc62aa6b8032d35
