noob question about error message

[Masber]

Dear minijinja community,

I am building a cli using minijinja,

for some reason when I am missing the minijinja template errors when running my app as a binary, however, I can see the minijinja error when running my app through cargo run.

eg:

Running through cargo run:

$ cargo run a sat -t my-template.yaml -f my-values.yaml

...

thread 'main' panicked at src/cli/commands/apply_sat_file/utils.rs:594:80:
called `Result::unwrap()` on an `Err` value: Error { kind: UndefinedError, name: "<string>", line: 18 }

---------------------------------- <string> -----------------------------------
  15 | #    playbook: cfs-layer-psi/layer0.yml
  16 | #    git:
  17 | #      url: https://api-gw-service-nmn.local/vcs/cray/vcluster-psidev-ansible.git
  18 > #      branch: "{{default.configurations.psi.branch}}"
     i                          ^^^^^^^^^^^^^^^^^^^ undefined value
  19 |
  20 | - name: "{{vcluster.name}}-gpu-{{default.suffix}}-{{vcluster.version}}"
  21 |   layers:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Referenced variables: {
    default: {
        "network_type": "cassini",
        "suffix": "cscs-24.8.0.r0",
        "working_branch": "cscs-24.8.0",
    },
    vcluster: {
        "name": "fora",
        "version": "1.4",
    },
}
-------------------------------------------------------------------------------

note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

As you can see, the app is giving a context of where the issue is

Running cargo install --path . --force, then:

$ manta a sat -t my-template.yaml -f my-values.yaml

...

thread 'main' panicked at src/cli/commands/apply_sat_file/utils.rs:594:80:
called `Result::unwrap()` on an `Err` value: Error { kind: UndefinedError, name: "<string>", line: 18 }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

And here I don't get the context of the error from minijinja and I am missing that because I find it quite useful for the endusers.

This is the code that produces the error https://github.com/eth-cscs/manta/blob/v1.53.9/src/cli/commands/apply_sat_file/utils.rs#L594

My question is:

What do I need to do in order to show minijinja error messages when running the binary?

thank you

[Masber]

ok, I found the solution by looking at the examples, apparently I need to set debug env for this