Cargo "CC" package - (500) Server Error Version 2025.15 (Build 9)

kinedax339_3276

My company is going to switch from jfrog artifactory to proget, but can't because cc crate won't download.

Clicking on "cc" will display the image below:

An error occurred in the web application: Sequence contains no elements

URL: http://mydomain.com:8624/feeds/public-cargo/cc/versions
Referrer: http://mydomain.com:8624/feeds/public-cargo?Search=cc
User: Admin
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.0
IP Address: ::ffff:10.10.20
Stack trace:    at System.Linq.ThrowHelper.ThrowNoElementsException()
   at Inedo.ProGet.WebApplication.Pages.Packages.Versions.ListPackageVersionsPageBase.CreateChildControlsAsync()
   at Inedo.ProGet.WebApplication.Pages.ProGetSimplePage.InitializeAsync() in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E614013\Src\src\ProGet\WebApplication\Pages\ProGetSimplePage.cs:line 69
   at Inedo.Web.PageFree.SimplePageBase.ExecutePageLifeCycleAsync()
   at Inedo.Web.PageFree.SimplePageBase.ProcessRequestAsync(AhHttpContext context)
   at Inedo.Web.AhWebMiddleware.InvokeAsync(HttpContext context)

::Web Error on 12/10/2025 10:02:06::

atripp

Hi @kinedax339_3276 ,

It looks like this is an error with the sparse index parsing for short names (e.g. a goes to
https://index.crates.io/1/a, cc goes to
https://index.crates.io/2/cc, syn goes to https://index.crates.io/3/s/syn, etc). Easy fix, we'll get it via PG-3177 in the upcoming maintenance release (Dec 19).

Or you can use the prerelease container image (25.0.17-ci.5) which is being built now.

Thanks,
Alana

kinedax339_3276

@atripp Oh thank you

kinedax339_3276

@atripp After updating ProGet to 25.0.17-ci.5, I do still get the "error: the crate cc could not be found in registry index." on my Linux machine. But opening it via the GUI works so that's great. Do you want me to open a new issue?

[registries]
proget = {index = "sparse+https://mydomain.com/cargo/public-cargo/" }

[registry]
default = "proget"

[source]
[source.proget]
registry = "sparse+https://mydomain.com/cargo/public-cargo/"
[source.crates-io]
replace-with = "proget"

atripp

@kinedax339_3276 thanks for checking!

Maybe it's a similar issue.... but honestly I've never used /crate before myself. There's a lot of overhead in figuring all that out for the first time.... so if you can find the URLs being invoked I could probably track it down really easily.

Is ther ea verbose mode we can see that shows urls ?

Here are our internal API notes on the implemented endpoints:

GET /config.json [CargoIndexHandler]
- generates a config.json file
  - "dl" - download URL for crates
  - "api" - API base url for the Web API
  - "auth-required" - boolean indicating if authentication is required to access the registry.
    - This is determined by if the feed has anonymous access for Feeds_DownloadPackage.

GET  /crates/{packagename}/{version}/download [CargoIndexHandler]
- Downloads a crate
  
GET /{prefix}/{packagename} [CargoIndexHandler]
- Downloads basic package version information
- Not true JSON, but each line is a JSON object representing a package version

Maybe it's that last one, with the {prefix} , since those were wrong elswhere. Maybe the matching regex is off?

    [GeneratedRegex(@"^(1-2)/(?<1>[^/]+)$|^(3)/./(?<1>[^/]+)$|^(?![1-3]/)../../(?<1>[^/]+)$", RegexOptions.ExplicitCapture)]

Cheers,
Alana

kinedax339_3276

@atripp When I run cargo build it first goes to /cargo/public-cargo/config.json and it seems fine. Then it starts doing GET requests for every package. Anyhow is downloaded from /cargo/public-cargo/an/yh/anyhow

But when it's going to get cc it goes to /cargo/public-cargo/2/cc and gets a 404 Not Found with the answe:

Inedo.Web.HttpException: Endpoint not available at this url.
   at Inedo.ProGet.WebApplication.FeedEndpoints.Cargo.CargoFeedHandler.ProcessRequestAsync(AhHttpContext context, WebApiContext apiContext, CargoFeed feed, String relativeUrl)
      i C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E619576\Src\src\ProGet\WebApplication\FeedEndpoints\Cargo\CargoFeedHandler.cs:rad 111
   at Inedo.ProGet.WebApplication.FeedEndpoints.CanonicalFeedHandler`1.Inedo.Web.IHttpAsyncHandler.ProcessRequestAsync(AhHttpContext context)
      i C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E619576\Src\src\ProGet\WebApplication\FeedEndpoints\CanonicalFeedHandler.cs:rad 85

It works for packages with a length of 3, for example, ryu it will download from /cargo/public-cargo/3/r/ryu and that works.

I think the regex should be "([1-2])" in the beginning where it's "(1-2)"

atripp

Thanks @kinedax339_3276, that was really helpful!

Easy fix to the regex, and I made sure the following work

Before, the first two returned the same 404.

Anyway this change should be in image 25.0.17-ci.7, which is building now! hopefully this will do the trick

kinedax339_3276

@atripp Thank you too! It works to downlaod cc so I'm happy

atripp

@kinedax339_3276 great news!! Appreciate the help