[INFO] cloning repository https://github.com/Divya-Darshan/fad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Divya-Darshan/fad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDivya-Darshan%2Ffad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDivya-Darshan%2Ffad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f92b486fb00cc76307b835030c84719f5305949
[INFO] checking Divya-Darshan/fad against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDivya-Darshan%2Ffad" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Divya-Darshan/fad
[INFO] finished tweaking git repo https://github.com/Divya-Darshan/fad
[INFO] tweaked toml for git repo https://github.com/Divya-Darshan/fad written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Divya-Darshan/fad on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Divya-Darshan/fad 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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834
[INFO] running `Command { std: "docker" "start" "d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid --cfg crater_hack --force-warn invalid-c-variadic-arguments" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/commands/start.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |            let mut child = Command::new(brave_path)
[INFO] [stdout]    |                ----^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_youtube_ws_url` is never used
[INFO] [stdout]   --> src/browser.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn get_youtube_ws_url() -> Result<String, Box<dyn std::error::Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_new_tab` is never used
[INFO] [stdout]   --> src/browser.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn open_new_tab(target_url: &str) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `title` are never read
[INFO] [stdout]   --> src/commands/play.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Tab {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 10 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub title: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tab` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `title` are never read
[INFO] [stdout]   --> src/commands/pause.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Tab {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 10 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub title: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tab` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `websocket_url` are never read
[INFO] [stdout]   --> src/commands/tabs.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Tab {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout]  5 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub websocket_url: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tab` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/commands/start.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |            let mut child = Command::new(brave_path)
[INFO] [stdout]    |                ----^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_youtube_ws_url` is never used
[INFO] [stdout]   --> src/browser.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn get_youtube_ws_url() -> Result<String, Box<dyn std::error::Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_new_tab` is never used
[INFO] [stdout]   --> src/browser.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn open_new_tab(target_url: &str) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `title` are never read
[INFO] [stdout]   --> src/commands/play.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Tab {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 10 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub title: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tab` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `title` are never read
[INFO] [stdout]   --> src/commands/pause.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Tab {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 10 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub title: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tab` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `websocket_url` are never read
[INFO] [stdout]   --> src/commands/tabs.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Tab {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout]  5 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub websocket_url: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tab` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834", kill_on_drop: false }`
[INFO] [stdout] d8a4d48b5f42e0f36b0b22117fdb6c8cf385a656aa5afcb52fd40a7edfa9c834
