Remove stray "." argument passed to cargo run in RustAppHostingExtension.cs

[Copilot]

Closes #1011

cargo run does not accept "." as a positional argument (unlike go run .). The current code produces cargo run . which fails.

Changes

• Remove "." from the args array in RustAppHostingExtension.cs
• Update test assertions in AddRustAppTests.cs to expect correct args

Before: cargo run . [--args]
After: cargo run [--args]

PR Checklist

• Created a feature/dev branch in your fork (vs. submitting directly from a commit on main)
• Based off latest main branch of toolkit
• PR doesn't include merge commits (always rebase on top of our main, if needed)
• New integration
  • Docs are written
  • Added description of major feature to project description for NuGet package (4000 total character limit, so don't push entire description over that)
• Tests for the changes have been added (for bug fixes / features) (if applicable)
• Contains NO breaking changes
• Every new API (including internal ones) has full XML docs
• Code follows all style conventions

Other information

Cargo uses the working directory (already set correctly) to find Cargo.toml. If a different manifest location is needed, --manifest-path should be used instead.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Remove stray "." argument passed to cargo run in RustAppHostingExtension.cs</issue_title>
<issue_description>In src/CommunityToolkit.Aspire.Hosting.Rust/RustAppHostingExtension.cs the code invokes cargo with an extra "." argument (e.g. cargo run .). cargo run does not accept "." as a positional argument and this causes cargo to fail.

Suggested fix: Remove the stray "." so arguments become cargo run <args> or use --manifest-path if intended</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Remove stray "." argument passed to cargo run in RustAppHostingExtension.cs #1011

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[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
CommunityToolkit.Aspire.GoFeatureFlag	100%	97%	74	✔
CommunityToolkit.Aspire.Hosting.ActiveMQ	78%	40%	108	➖
CommunityToolkit.Aspire.Hosting.ActiveMQ.MassTransit	1%	0%	14	❌
CommunityToolkit.Aspire.Hosting.Adminer	74%	50%	20	➖
CommunityToolkit.Aspire.Hosting.Azure.Dapr	29%	7%	124	❌
CommunityToolkit.Aspire.Hosting.Azure.Dapr.Redis	61%	34%	76	➖
CommunityToolkit.Aspire.Hosting.Azure.DataApiBuilder	100%	100%	22	✔
CommunityToolkit.Aspire.Hosting.Bun	96%	83%	28	✔
CommunityToolkit.Aspire.Hosting.Dapr	60%	37%	840	❌
CommunityToolkit.Aspire.Hosting.DbGate	94%	50%	18	✔
CommunityToolkit.Aspire.Hosting.Deno	98%	85%	44	✔
CommunityToolkit.Aspire.Hosting.Flagd	79%	100%	32	➖
CommunityToolkit.Aspire.Hosting.GoFeatureFlag	88%	73%	36	✔
CommunityToolkit.Aspire.Hosting.Golang	51%	40%	88	❌
CommunityToolkit.Aspire.Hosting.Java	70%	75%	130	➖
CommunityToolkit.Aspire.Hosting.JavaScript.Extensions	97%	85%	200	✔
CommunityToolkit.Aspire.Hosting.k6	58%	12%	20	❌
CommunityToolkit.Aspire.Hosting.Keycloak.Extensions	100%	100%	22	✔
CommunityToolkit.Aspire.Hosting.KurrentDB	71%	75%	34	➖
CommunityToolkit.Aspire.Hosting.LavinMQ	74%	50%	26	➖
CommunityToolkit.Aspire.Hosting.LavinMQ.MassTransit	1%	0%	14	❌
CommunityToolkit.Aspire.Hosting.MailPit	85%	50%	22	✔
CommunityToolkit.Aspire.Hosting.McpInspector	75%	39%	154	➖
CommunityToolkit.Aspire.Hosting.Meilisearch	71%	57%	58	➖
CommunityToolkit.Aspire.Hosting.Minio	88%	75%	56	✔
CommunityToolkit.Aspire.Hosting.MongoDB.Extensions	96%	83%	36	✔
CommunityToolkit.Aspire.Hosting.MySql.Extensions	100%	88%	78	✔
CommunityToolkit.Aspire.Hosting.Ngrok	52%	35%	82	❌
CommunityToolkit.Aspire.Hosting.Ollama	65%	69%	260	➖
CommunityToolkit.Aspire.Hosting.OpenTelemetryCollector	78%	61%	77	➖
CommunityToolkit.Aspire.Hosting.PapercutSmtp	81%	50%	18	✔
CommunityToolkit.Aspire.Hosting.PostgreSQL.Extensions	99%	89%	84	✔
CommunityToolkit.Aspire.Hosting.Python.Extensions	45%	29%	100	❌
CommunityToolkit.Aspire.Hosting.RavenDB	62%	48%	148	➖
CommunityToolkit.Aspire.Hosting.Redis.Extensions	100%	71%	48	✔
CommunityToolkit.Aspire.Hosting.Rust	94%	83%	16	✔
CommunityToolkit.Aspire.Hosting.Solr	72%	100%	22	➖
CommunityToolkit.Aspire.Hosting.SqlDatabaseProjects	51%	48%	192	❌
CommunityToolkit.Aspire.Hosting.Sqlite	89%	89%	52	✔
CommunityToolkit.Aspire.Hosting.SqlServer.Extensions	100%	87%	78	✔
CommunityToolkit.Aspire.Hosting.SurrealDb	55%	40%	256	❌
CommunityToolkit.Aspire.KurrentDB	94%	92%	54	✔
CommunityToolkit.Aspire.MassTransit.RabbitMQ	100%	100%	30	✔
CommunityToolkit.Aspire.Meilisearch	97%	92%	68	✔
CommunityToolkit.Aspire.Microsoft.Data.Sqlite	89%	85%	52	✔
CommunityToolkit.Aspire.Microsoft.EntityFrameworkCore.Sqlite	61%	58%	114	➖
CommunityToolkit.Aspire.Minio.Client	90%	85%	112	✔
CommunityToolkit.Aspire.OllamaSharp	77%	71%	132	➖
CommunityToolkit.Aspire.RavenDB.Client	60%	53%	237	➖
CommunityToolkit.Aspire.SurrealDb	79%	63%	78	➖
Summary	68% (7216 / 10642)	56% (2056 / 3690)	4684	➖

Minimum allowed line rate is 60%

[Copilot]

Pull request overview

This PR fixes a bug where the Rust integration was passing an invalid "." argument to cargo run, causing the command to fail. The fix removes the unnecessary argument, allowing cargo to correctly use the working directory.

• Removes the stray "." argument from the cargo run command in RustAppHostingExtension.cs
• Updates test assertions in AddRustAppTests.cs to verify the corrected command arguments

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/CommunityToolkit.Aspire.Hosting.Rust/RustAppHostingExtension.cs	Removed the invalid "." argument from both conditional branches of the args array construction
tests/CommunityToolkit.Aspire.Hosting.Rust.Tests/AddRustAppTests.cs	Updated test assertions to expect only "run" argument (without ".") in both test methods

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[Alirexaa]

It's very odd how this test passed in cargo run ..

Aspire/tests/CommunityToolkit.Aspire.Hosting.Rust.Tests/AppHostTests.cs

Lines 8 to 18 in e7a7843

	public async Task ResourceStartsAndRespondsOk()
	{
	var appName = "rust-app";
	var rns = fixture.App.Services.GetRequiredService<ResourceNotificationService>();
	_ = await rns.WaitForResourceHealthyAsync(appName).WaitAsync(TimeSpan.FromMinutes(5));
	var httpClient = fixture.CreateHttpClient(appName);
	var response = await httpClient.GetAsync("/ping");
	Assert.Equal(HttpStatusCode.OK, response.StatusCode);

[Alirexaa]

Manually tested and cargo run . works (actix-api starts successfully) but its ignore any passed arguments.