Rust CLI Troubleshooting: Dependencies, Features, and Lockfiles

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Commands for analyzing dependency trees, feature activation, duplicate crates, and lockfile behavior in Rust CLI projects.

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## Dependency and feature inspection

Print the dependency tree

↗#

cargo tree

# Show the package dependency graph.

Show reverse dependencies

↗#

cargo tree -i serde

# Find what depends on a given crate.

Find duplicate crate versions

↗#

cargo tree -d

# List repeated dependencies that may bloat builds.

Inspect activated features

↗#

cargo tree -e features

# Show features involved in dependency resolution.

Refresh the lockfile

↗#

cargo update

# Update dependencies allowed by version requirements.

Pin one dependency precisely

↗#

cargo update -p clap --precise 4.5.0

# Update a selected crate to one specific version.

Generate Cargo.lock

↗#

cargo generate-lockfile

# Create or refresh the lockfile explicitly.

## Feature troubleshooting snippets

Build without default features

↗#

cargo build --no-default-features

# Check whether defaults are causing the issue.

Build with selected features

↗#

cargo build --features json,derive

# Enable only the features you want to test.

Build with all features

↗#

cargo build --all-features

# Catch hidden compilation issues across optional code paths.

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