Cargo custom registry authorization failed

[MarcelGep]

Hey,

i'm trying to use own crates from a own cargo repository on a Sonatype Nexus.

I use crate_universe and from_cargo in my MODULE.bazel (bzlmod - Bazel Version 8.2.1).

If i add a own crate into the Cargo.toml as dependency, my bazel build failed!
The reason is 401 Unauthorized.

I apply a config.toml into from_cargo with the parameter cargo_config, in which i set my registry and the global credential provider.

[registries]
testregistry = { index = "sparse+https://nexus.blablub/repository/cargo_test/" }
 
[registry]
default = "testregistry "
global-credential-providers = ["cargo:token"]

This file is the same which i have in my home directory ~/.cargo/config.toml. There also the file credentials.toml with this content:

[registries.testregistry]
token = "token_blabla"

How can i put the credentials.toml into my bazel build environment that i can build my project with the own dependencies?
I have try to set the --action_env=CARGO_REGISTRIES_TESTREGISTRY_TOKEN=blablablub but it does not work -> 401 ....

Do anybody have an idea what is my problem or what can i do?