[INFO] fetching crate dig2browser 0.5.6...
[INFO] checking dig2browser-0.5.6 against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] extracting crate dig2browser 0.5.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate dig2browser 0.5.6
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate dig2browser 0.5.6
[INFO] tweaked toml for crates.io crate dig2browser 0.5.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dig2browser 0.5.6 on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dig2browser 0.5.6 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e
[INFO] running `Command { std: "docker" "start" "7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e", 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" "7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e", 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" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]   --> src/browser_stream.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::net::{SocketAddr, TcpListener, TcpStream};
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_version_4` is never used
[INFO] [stdout]   --> src/detect/version.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn parse_version_4(s: &str) -> Option<[u32; 4]> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GECKODRIVER_MAX_STARTUP_TIMEOUT` is never used
[INFO] [stdout]   --> src/browser/backend/bidi.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | const GECKODRIVER_MAX_STARTUP_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GECKODRIVER_LOG_LIMIT` is never used
[INFO] [stdout]   --> src/browser/backend/bidi.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 | const GECKODRIVER_LOG_LIMIT: usize = 64 * 1024;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GECKODRIVER_LINE_LIMIT` is never used
[INFO] [stdout]   --> src/browser/backend/bidi.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | const GECKODRIVER_LINE_LIMIT: usize = 8 * 1024;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GeckodriverLogSignal` is never used
[INFO] [stdout]    --> src/browser/backend/bidi.rs:195:6
[INFO] [stdout]     |
[INFO] [stdout] 195 | enum GeckodriverLogSignal {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_geckodriver_log` is never used
[INFO] [stdout]    --> src/browser/backend/bidi.rs:340:10
[INFO] [stdout]     |
[INFO] [stdout] 340 | async fn read_geckodriver_log<R>(
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_geckodriver_listener` is never used
[INFO] [stdout]    --> src/browser/backend/bidi.rs:392:4
[INFO] [stdout]     |
[INFO] [stdout] 392 | fn parse_geckodriver_listener(line: &[u8]) -> Option<SocketAddr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `command_timeout` and `max_resident` are never read
[INFO] [stdout]    --> src/worker_ipc.rs:303:5
[INFO] [stdout]     |
[INFO] [stdout] 300 | pub struct WorkerIpcConfig {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 303 |     command_timeout: Duration,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 304 |     max_resident: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `WorkerIpcConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serve_connection` is never used
[INFO] [stdout]    --> src/worker_ipc.rs:388:10
[INFO] [stdout]     |
[INFO] [stdout] 388 | async fn serve_connection<S>(stream: &mut S, registry: &mut WorkerRegistry) -> Result<(), ServerError>
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WorkerEntry` is never constructed
[INFO] [stdout]    --> src/worker_ipc.rs:428:8
[INFO] [stdout]     |
[INFO] [stdout] 428 | struct WorkerEntry {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WorkerRegistry` is never constructed
[INFO] [stdout]    --> src/worker_ipc.rs:433:8
[INFO] [stdout]     |
[INFO] [stdout] 433 | struct WorkerRegistry {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `capture`, `worker`, `shutdown_all`, and `remove_worker` are never used
[INFO] [stdout]    --> src/worker_ipc.rs:442:8
[INFO] [stdout]     |
[INFO] [stdout] 441 | impl WorkerRegistry {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout] 442 |     fn new(profiles_root: PathBuf, command_timeout: Duration, max_resident: usize) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 452 |     async fn capture(&mut self, request: &WorkerRequest) -> WorkerResponse {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 541 |     async fn worker(&mut self, profile_id: &str) -> Result<BrowserWorker, ()> {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 606 |     async fn shutdown_all(&mut self) {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 613 |     async fn remove_worker(&mut self, profile_id: &str) {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `protocol_failure_response` is never used
[INFO] [stdout]    --> src/worker_ipc.rs:760:4
[INFO] [stdout]     |
[INFO] [stdout] 760 | fn protocol_failure_response(request_id: u64, kind: RequestKind) -> WorkerResponse {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `elapsed_ms` is never used
[INFO] [stdout]    --> src/worker_ipc.rs:775:4
[INFO] [stdout]     |
[INFO] [stdout] 775 | fn elapsed_ms(started: Instant) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `request_id` and `kind_byte` are never read
[INFO] [stdout]    --> src/worker_ipc.rs:895:16
[INFO] [stdout]     |
[INFO] [stdout] 895 |     Protocol { request_id: u64, kind_byte: u8 },
[INFO] [stdout]     |     --------   ^^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ReadRequestError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `request_id` and `kind` are never used
[INFO] [stdout]    --> src/worker_ipc.rs:908:8
[INFO] [stdout]     |
[INFO] [stdout] 907 | impl ReadRequestError {
[INFO] [stdout]     | --------------------- methods in this implementation
[INFO] [stdout] 908 |     fn request_id(&self) -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 915 |     fn kind(&self) -> RequestKind {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_version_4` is never used
[INFO] [stdout]   --> src/detect/version.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn parse_version_4(s: &str) -> Option<[u32; 4]> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GECKODRIVER_MAX_STARTUP_TIMEOUT` is never used
[INFO] [stdout]   --> src/browser/backend/bidi.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | const GECKODRIVER_MAX_STARTUP_TIMEOUT: Duration = Duration::from_secs(15);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/browser/backend/bidi.rs:196:15
[INFO] [stdout]     |
[INFO] [stdout] 196 |     Listening(SocketAddr),
[INFO] [stdout]     |     --------- ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 196 -     Listening(SocketAddr),
[INFO] [stdout] 196 +     Listening(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/browser/backend/bidi.rs:199:15
[INFO] [stdout]     |
[INFO] [stdout] 199 |     ReadError(&'static str, std::io::Error),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 199 -     ReadError(&'static str, std::io::Error),
[INFO] [stdout] 199 +     ReadError((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `launch` is never used
[INFO] [stdout]    --> src/browser/backend/cdp.rs:261:25
[INFO] [stdout]     |
[INFO] [stdout] 258 | impl CdpBrowserBackend {
[INFO] [stdout]     | ---------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 261 |     pub(crate) async fn launch(
[INFO] [stdout]     |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `command_timeout` and `max_resident` are never read
[INFO] [stdout]    --> src/worker_ipc.rs:303:5
[INFO] [stdout]     |
[INFO] [stdout] 300 | pub struct WorkerIpcConfig {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 303 |     command_timeout: Duration,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 304 |     max_resident: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `WorkerIpcConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serve_connection` is never used
[INFO] [stdout]    --> src/worker_ipc.rs:388:10
[INFO] [stdout]     |
[INFO] [stdout] 388 | async fn serve_connection<S>(stream: &mut S, registry: &mut WorkerRegistry) -> Result<(), ServerError>
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WorkerEntry` is never constructed
[INFO] [stdout]    --> src/worker_ipc.rs:428:8
[INFO] [stdout]     |
[INFO] [stdout] 428 | struct WorkerEntry {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WorkerRegistry` is never constructed
[INFO] [stdout]    --> src/worker_ipc.rs:433:8
[INFO] [stdout]     |
[INFO] [stdout] 433 | struct WorkerRegistry {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `capture`, `worker`, `shutdown_all`, and `remove_worker` are never used
[INFO] [stdout]    --> src/worker_ipc.rs:442:8
[INFO] [stdout]     |
[INFO] [stdout] 441 | impl WorkerRegistry {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout] 442 |     fn new(profiles_root: PathBuf, command_timeout: Duration, max_resident: usize) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 452 |     async fn capture(&mut self, request: &WorkerRequest) -> WorkerResponse {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 541 |     async fn worker(&mut self, profile_id: &str) -> Result<BrowserWorker, ()> {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 606 |     async fn shutdown_all(&mut self) {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 613 |     async fn remove_worker(&mut self, profile_id: &str) {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `protocol_failure_response` is never used
[INFO] [stdout]    --> src/worker_ipc.rs:760:4
[INFO] [stdout]     |
[INFO] [stdout] 760 | fn protocol_failure_response(request_id: u64, kind: RequestKind) -> WorkerResponse {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `elapsed_ms` is never used
[INFO] [stdout]    --> src/worker_ipc.rs:775:4
[INFO] [stdout]     |
[INFO] [stdout] 775 | fn elapsed_ms(started: Instant) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `request_id` and `kind_byte` are never read
[INFO] [stdout]    --> src/worker_ipc.rs:895:16
[INFO] [stdout]     |
[INFO] [stdout] 895 |     Protocol { request_id: u64, kind_byte: u8 },
[INFO] [stdout]     |     --------   ^^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ReadRequestError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `request_id` and `kind` are never used
[INFO] [stdout]    --> src/worker_ipc.rs:908:8
[INFO] [stdout]     |
[INFO] [stdout] 907 | impl ReadRequestError {
[INFO] [stdout]     | --------------------- methods in this implementation
[INFO] [stdout] 908 |     fn request_id(&self) -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 915 |     fn kind(&self) -> RequestKind {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SOCKS_GENERAL_FAILURE` is never used
[INFO] [stdout]    --> src/bin/dev_launch_debug.rs:313:7
[INFO] [stdout]     |
[INFO] [stdout] 313 | const SOCKS_GENERAL_FAILURE: u8 = 0x01;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SOCKS_COMMAND_UNSUPPORTED` is never used
[INFO] [stdout]    --> src/bin/dev_launch_debug.rs:314:7
[INFO] [stdout]     |
[INFO] [stdout] 314 | const SOCKS_COMMAND_UNSUPPORTED: u8 = 0x07;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SOCKS_ATYP_UNSUPPORTED` is never used
[INFO] [stdout]    --> src/bin/dev_launch_debug.rs:315:7
[INFO] [stdout]     |
[INFO] [stdout] 315 | const SOCKS_ATYP_UNSUPPORTED: u8 = 0x08;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_socks_connect` is never used
[INFO] [stdout]    --> src/bin/dev_launch_debug.rs:324:4
[INFO] [stdout]     |
[INFO] [stdout] 324 | fn decode_socks_connect(request: &[u8]) -> Result<(String, u16), u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `host_is_dns_name` is never used
[INFO] [stdout]    --> src/bin/dev_launch_debug.rs:370:4
[INFO] [stdout]     |
[INFO] [stdout] 370 | fn host_is_dns_name(host: &str) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 14s
[INFO] running `Command { std: "docker" "inspect" "7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e", kill_on_drop: false }`
[INFO] [stdout] 7e720c10af73fef0bf88e4882989598af56f110dbb2bc82fc6ea0343a120ad7e
