Tag v5.0.101-servicing.20601.7 does not build: unable to load source 'darc-pub-dotnet-runtime-b02e13ab'

From v5.0.101-servicing.20601.7 (which I assume is what produced 5.0.101 since it’s the only tag with 5.0.101 in it):

./build.sh --restore --build --pack
...
--------------------------------------------------------------------------------------
/work/artifacts/toolset/restore.proj : error : Unable to load the service index for source https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-runtime-b02e13ab/nuget/v3/index.json.
/work/artifacts/toolset/restore.proj : error : Unable to load the service index for source https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-runtime-b02e13ab/nuget/v3/index.json.
Build failed (exit code '1').

https://github.com/dotnet/sdk/blob/d5eb2b9c5a4e51be4b26781958785d8817e25b04/NuGet.config#L9-L11

When I go to https://dev.azure.com/dnceng/public/_packaging?_a=feed&feed=darc-pub-dotnet-runtime-b02e13ab to check up on the feed, I see this:

---

@dotnet/dnceng are you able to restore the feed? Or is the tag supposed to be buildable a different way?

[riarenas]

The disabled package sources only disables the feeds that would be inaccessible for external users. It doesn’t disabled -pub because that would make the shas unbuildable (without modifications) on devs machines during the release cycle.

That’s the part I was missing about disabled sources. Thanks, that makes sense.

[dagood]

The disabled package sources only disables the feeds that would be inaccessible for external users.

If we were deleting them intentionally, this would apply (or rather, we’d want some better infra that works at any point in time rather than only for a certain group of users vs. another).

But since it isn’t intentional to delete these, yeah, no need. Closing as resolved. Thanks to both of you for looking into this.