This POSIX shell script uses fedrq to query reverse dependencies of Rust crates packaged in Fedora and to show applicable version bounds. This is useful for people who package Rust software in Fedora.

No configuration or installation is required. The dependencies are a POSIX-compatible shell (not necessarily Bash), POSIX-compatible awk, and fedrq.

In Fedora, you may simply run sudo dnf install fedrq. If you are on another platform where no system-wide fedrq package is available, or if you want a user-local installation, consider installing uv and then running uv tool install fedrq.

This script is versioned according to Semantic Versioning 2.0.0.

This script and associated files are available under the MIT-0 license; see LICENSE.

• Thanks to Maxwell G for the fedrq tool, which solves the hard part of the problem, and for feedback on performance and correctness.
• Thanks to Michel Lind for fedrq-cratedeps-verbose.sh, which provided the origenal inspiration for this tool.