[INFO] crate oxid 0.0.1 is already in cache
[INFO] testing oxid-0.0.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate oxid 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate oxid 0.0.1 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oxid 0.0.1
[INFO] finished tweaking crates.io crate oxid 0.0.1
[INFO] tweaked toml for crates.io crate oxid 0.0.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "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" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9808e74f836f325c08d39b9796b43f5a7588da382b192328c07c2713822f5c80
[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" "9808e74f836f325c08d39b9796b43f5a7588da382b192328c07c2713822f5c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9808e74f836f325c08d39b9796b43f5a7588da382b192328c07c2713822f5c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9808e74f836f325c08d39b9796b43f5a7588da382b192328c07c2713822f5c80", kill_on_drop: false }`
[INFO] [stdout] 9808e74f836f325c08d39b9796b43f5a7588da382b192328c07c2713822f5c80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d93c9fde597c3ff175443dca17efd9652e4f66527c56416cee0ae0bc9ed74d3
[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" "9d93c9fde597c3ff175443dca17efd9652e4f66527c56416cee0ae0bc9ed74d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling sapp-linux v0.1.8
[INFO] [stderr]    Compiling glam v0.8.7
[INFO] [stderr]    Compiling quad-rand v0.1.1
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling png v0.15.3
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling image v0.22.5
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling miniquad_text_rusttype v0.1.2
[INFO] [stderr]    Compiling megaui v0.2.11
[INFO] [stderr]    Compiling miniquad v0.3.0-alpha.11
[INFO] [stderr]    Compiling quad-gl v0.2.2
[INFO] [stderr]    Compiling oxid v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use miniquad::rand;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:9:44
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:15:44
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:22:44
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:30:44
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete`
[INFO] [stdout]   --> src/experimental/scene.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn delete(&mut self) {
[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: `new`
[INFO] [stdout]   --> src/experimental/scene.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn new(data: T) -> GameObject<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/experimental/scene.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn get(&self) -> GameObjectRef<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `clear`
[INFO] [stdout]   --> src/experimental/scene.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn clear() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all_scene_objects`
[INFO] [stdout]   --> src/experimental/scene.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn all_scene_objects() -> impl Iterator<Item = &'static mut Box<dyn Any>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `events_queue`
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     events_queue: event::SharedEventsQueue,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `futures`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     futures: Vec<Option<(Pin<Box<dyn Future<Output = ()>>>, exec::FutureContext)>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.48s
[INFO] running `Command { std: "docker" "inspect" "9d93c9fde597c3ff175443dca17efd9652e4f66527c56416cee0ae0bc9ed74d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d93c9fde597c3ff175443dca17efd9652e4f66527c56416cee0ae0bc9ed74d3", kill_on_drop: false }`
[INFO] [stdout] 9d93c9fde597c3ff175443dca17efd9652e4f66527c56416cee0ae0bc9ed74d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16ce9603ab4760560d81fb4fa93ddc8fc52355cb3c9dd19ccc54cfbda9bb98d3
[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" "16ce9603ab4760560d81fb4fa93ddc8fc52355cb3c9dd19ccc54cfbda9bb98d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling oxid v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use miniquad::rand;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:9:44
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:15:44
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:22:44
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:30:44
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete`
[INFO] [stdout]   --> src/experimental/scene.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn delete(&mut self) {
[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: `new`
[INFO] [stdout]   --> src/experimental/scene.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn new(data: T) -> GameObject<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/experimental/scene.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn get(&self) -> GameObjectRef<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `clear`
[INFO] [stdout]   --> src/experimental/scene.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn clear() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all_scene_objects`
[INFO] [stdout]   --> src/experimental/scene.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn all_scene_objects() -> impl Iterator<Item = &'static mut Box<dyn Any>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `events_queue`
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     events_queue: event::SharedEventsQueue,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `futures`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     futures: Vec<Option<(Pin<Box<dyn Future<Output = ()>>>, exec::FutureContext)>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use miniquad::rand;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]  --> src/experimental/rand.rs:9:44
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:15:44
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:22:44
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stdout]   --> src/experimental/rand.rs:30:44
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete`
[INFO] [stdout]   --> src/experimental/scene.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn delete(&mut self) {
[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: `new`
[INFO] [stdout]   --> src/experimental/scene.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn new(data: T) -> GameObject<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/experimental/scene.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn get(&self) -> GameObjectRef<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `clear`
[INFO] [stdout]   --> src/experimental/scene.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn clear() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all_scene_objects`
[INFO] [stdout]   --> src/experimental/scene.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn all_scene_objects() -> impl Iterator<Item = &'static mut Box<dyn Any>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `events_queue`
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     events_queue: event::SharedEventsQueue,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `futures`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     futures: Vec<Option<(Pin<Box<dyn Future<Output = ()>>>, exec::FutureContext)>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "16ce9603ab4760560d81fb4fa93ddc8fc52355cb3c9dd19ccc54cfbda9bb98d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ce9603ab4760560d81fb4fa93ddc8fc52355cb3c9dd19ccc54cfbda9bb98d3", kill_on_drop: false }`
[INFO] [stdout] 16ce9603ab4760560d81fb4fa93ddc8fc52355cb3c9dd19ccc54cfbda9bb98d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] 16c9cbe9d8174e6b7b3b3df2e85cb795bf180bf4706ad11124de1699b521f821
[INFO] running `Command { std: "docker" "start" "-a" "16c9cbe9d8174e6b7b3b3df2e85cb795bf180bf4706ad11124de1699b521f821", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]  --> src/experimental/rand.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use miniquad::rand;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]  --> src/experimental/rand.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]   |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]  --> src/experimental/rand.rs:9:44
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]   |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:15:44
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:22:44
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:30:44
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `delete`
[INFO] [stderr]   --> src/experimental/scene.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn delete(&mut self) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/experimental/scene.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new(data: T) -> GameObject<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]   --> src/experimental/scene.rs:79:12
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn get(&self) -> GameObjectRef<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `clear`
[INFO] [stderr]   --> src/experimental/scene.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn clear() {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `all_scene_objects`
[INFO] [stderr]   --> src/experimental/scene.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn all_scene_objects() -> impl Iterator<Item = &'static mut Box<dyn Any>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `events_queue`
[INFO] [stderr]   --> src/lib.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     events_queue: event::SharedEventsQueue,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `futures`
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     futures: Vec<Option<(Pin<Box<dyn Future<Output = ()>>>, exec::FutureContext)>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]  --> src/experimental/rand.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use miniquad::rand;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]  --> src/experimental/rand.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]   |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]  --> src/experimental/rand.rs:9:44
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]   |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:15:44
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:22:44
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::rand': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'miniquad::RAND_MAX': libc rand is slow and incosistent across platforms. Please use quad-rnd crate instead.
[INFO] [stderr]   --> src/experimental/rand.rs:30:44
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let r = unsafe { rand() } as f32 / miniquad::RAND_MAX as f32;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `delete`
[INFO] [stderr]   --> src/experimental/scene.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn delete(&mut self) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/experimental/scene.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new(data: T) -> GameObject<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]   --> src/experimental/scene.rs:79:12
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn get(&self) -> GameObjectRef<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `clear`
[INFO] [stderr]   --> src/experimental/scene.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn clear() {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `all_scene_objects`
[INFO] [stderr]   --> src/experimental/scene.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn all_scene_objects() -> impl Iterator<Item = &'static mut Box<dyn Any>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `events_queue`
[INFO] [stderr]   --> src/lib.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     events_queue: event::SharedEventsQueue,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `futures`
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     futures: Vec<Option<(Pin<Box<dyn Future<Output = ()>>>, exec::FutureContext)>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/oxid-07aaca881cabd80b
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests oxid
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "16c9cbe9d8174e6b7b3b3df2e85cb795bf180bf4706ad11124de1699b521f821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c9cbe9d8174e6b7b3b3df2e85cb795bf180bf4706ad11124de1699b521f821", kill_on_drop: false }`
[INFO] [stdout] 16c9cbe9d8174e6b7b3b3df2e85cb795bf180bf4706ad11124de1699b521f821