Cargo git dependency - https authentication fails

I found out about the possibility to directly include a git repository as dependency in cargo.
So I tried this for a private repo on my personal Gitlab instance via https, but it seems to have trouble authenticating:

error: failed to load source for a dependency on `pfwr`

Caused by:
  Unable to update https://git.*removed*.*removed*/pfwr.git

Caused by:
  failed to fetch into C:\Users\*removed*\.cargo\git\db\pfwr-3bec381543b163f9

Caused by:
  failed to authenticate when downloading repository
attempted to find username/password via git's `credential.helper` support, but failed

Caused by:
  an unknown git error occurred

I am using Windows 10 Pro and the Git Windows Credentials Manager, which is also set in my git config as credential-helper.
I can easily clone my repository even from the same command line instance via ‘git clone https://git.removed.removed/pfwr.git’ without entering my credentials, because they are already saved. But somehow cargo doesn’t seem to have access to this.
Does someone know how to solve this problem or is this a bug?
Thank you in advance! :slight_smile:

It is a bug! I feel like I have seen it before, but cargo has a lot of open bugs so it is hard to find the exact one mabe https://github.com/rust-lang/cargo/issues/4605

If that does not match please open a new one!

Do you have 2FA enabled? I have found that git has issues with 2fa & using https for repositories since it cannot complete the 2nd stage of authentication. Can you try using ssh and see if it works or not?

Thank you for the answers.
No, I do not have 2FA enabled. I have disabled ssh on my personal Gitlab instance, but I tried it with a Bitbucket repository. Again, I can clone it via git and ssh, but I currently do not get it to work in cargo. How does the adress need to look like when using ssh?
I tried my normal Gitlab repo via https on Windows Subsystem for Linux and it worked using the credentials-cache. It seems to be a Windows related issue.

1 Like

This bug can be fixed by adding the Git/bin path to the Path environment variable. You can take a look at the Github issue I opened for more information: https://github.com/rust-lang/cargo/issues/5227

1 Like