rustical/docs/developers/debugging.md

Debugging

Set the log level with following environment variables:

RUST_LOG="debug"
RUST_BACKTRACE=1

RustiCal also supports exporting opentelemetry traces to inspect with tools like Jaeger. To enable you need to compile with the opentelemtry (or debug) feature and enable opentelemetry in the config with

[tracing]
opentelemetry = true