[INFO] cloning repository https://github.com/moka491/stream-view
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moka491/stream-view" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoka491%2Fstream-view", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af80d229f54b7c8e1c75575ff2dfc04a60e5d691
[INFO] checking moka491/stream-view against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoka491%2Fstream-view" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moka491/stream-view on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/moka491/stream-view
[INFO] finished tweaking git repo https://github.com/moka491/stream-view
[INFO] tweaked toml for git repo https://github.com/moka491/stream-view written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/moka491/stream-view already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "6773620e8ce9d5668b806436d90b6bf379e04b663a7cde0f4e735a5af0111469", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: fields `current_device_index` and `current_format` are never read
[INFO] [stdout]  --> src/frame_grabber.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FrameGrabber {
[INFO] [stdout]   |            ------------ fields in this struct
[INFO] [stdout] 4 |     device: Camera,
[INFO] [stdout] 5 |     current_device_index: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     current_format: Option<CameraFormat>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `list_devices`, `change_device`, `list_supported_modes`, `change_mode`, and `open_stream` are never used
[INFO] [stdout]   --> src/frame_grabber.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl FrameGrabber {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn list_devices() -> Result<Vec<(usize, String)>, NokhwaError> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn change_device(&mut self, index: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn list_supported_modes(&mut self) -> Result<Vec<CameraFormat>, NokhwaError> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn change_mode(&self) {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 68 |
[INFO] [stdout] 69 |     pub fn open_stream(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `current_device_index` and `current_format` are never read
[INFO] [stdout]  --> src/frame_grabber.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FrameGrabber {
[INFO] [stdout]   |            ------------ fields in this struct
[INFO] [stdout] 4 |     device: Camera,
[INFO] [stdout] 5 |     current_device_index: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     current_format: Option<CameraFormat>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `list_devices`, `change_device`, `list_supported_modes`, `change_mode`, and `open_stream` are never used
[INFO] [stdout]   --> src/frame_grabber.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl FrameGrabber {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn list_devices() -> Result<Vec<(usize, String)>, NokhwaError> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn change_device(&mut self, index: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn list_supported_modes(&mut self) -> Result<Vec<CameraFormat>, NokhwaError> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn change_mode(&self) {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 68 |
[INFO] [stdout] 69 |     pub fn open_stream(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frame_grabber.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         self.device.set_index(index);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = self.device.set_index(index);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frame_grabber.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         self.device.set_index(index);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = self.device.set_index(index);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.85s
[INFO] running `Command { std: "docker" "inspect" "18b5e12253515599ec80eb9ce9ad13a7098911991777dcf732b532fd9680214a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b5e12253515599ec80eb9ce9ad13a7098911991777dcf732b532fd9680214a", kill_on_drop: false }`
[INFO] [stdout] 18b5e12253515599ec80eb9ce9ad13a7098911991777dcf732b532fd9680214a