How to enable stack backtrace and debug logging in standalone mode

[J0HN50N133]

I've modified loggin.level to debug in standalone.example.toml and started a standalone instance with cargo run -- standalone start.

However, the actual logging options is as below:

Then I triggered an error:

However, the error stacktrace is not printed to console:

[killme2008]

Need the -c config/standalone.example.toml?

RUST_BACKTRACE=full cargo run -- standalone start -c config/standalone.example.toml

[killme2008]

A better way to set log level by command line arg:

RUST_BACKTRACE=full cargo run -- standalone start --log-level=debug -c config/standalone.example.toml