nix build --dry-run doesn't work with freshly checked out flakes (is not a valid path)

[arianvp]

Describe the bug

It says there is an invalid store path

Steps To Reproduce

1. git clone https://github.com/arianvp/webauthn-oidc
2. cd webauthn-oidc
3. nix build --dry-run

don't know how to build these paths (may be caused by read-only store access):
  /nix/store/c68zy0ajvpkzx94mpb4nlnhx0avd274p-webauthn-oidc-0.0.1.drv
error: path '/nix/store/c68zy0ajvpkzx94mpb4nlnhx0avd274p-webauthn-oidc-0.0.1.drv' is not a valid store path

Expected behavior
Flake gets added to store path and runs a dry-run

nix-env --version output

(Nix) 2.4pre20210802_47e96bb

Additional context

Add any other context about the problem here.

[stale]

I marked this as stale due to inactivity. → More info