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Cargo / Build Rustc Specific Package

Build Rustc Specific Package

Compile a specific package within a Rust project using rustc.

Terminal

cargo rustc -p <package>

cargo rustc -p <package>

#!/bin/bash

# Build Rustc Specific Package
cargo rustc {{[-p|--package]}} {{package}}

import subprocess

# Build Rustc Specific Package
# Make sure to replace <placeholders> with actual values
def run_command():
    cmd = [
        "cargo",
        "rustc",
        "-p",
        "<package>"
    ]
    
    try:
        print(f"Executing: {' '.join(cmd)}")
        subprocess.run(cmd, check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error: {e}")
    except FileNotFoundError:
        print("Error: cargo not found. Please install it first.")

if __name__ == "__main__":
    run_command()

When To Use

When working with multi-package projects and wanting tight control over build processes.

Pro Tip

Using the `--no-default-features` flag can help isolate package issues by not pulling in dependencies automatically.

Command Builder

Tune the command before you copy it

Back to syntax

Generated Command

cargo rustc -p <package>

Terminal Output

Expected runtime feedback

Simulated preview

Output

Finished dev [unoptimized + debuginfo] target(s) in 0.25s

   Building package `example_package v0.1.0` in `target/debug/examples`
   Compiling example_package v0.1.0 (path/to/example_package)
   Finished debug [unoptimized + debuginfo] target(s) in 1.20s

Anatomy of Output

Understanding the result

Compiling mypackage v0.1.0 (/path/to/mypackage) Package Compilation Notification

Shows which package is being compiled.

Finished release [optimized] target(s) in 1.12s Completion Status

Indicates successful completion of the specific package build.

Documenting mypackage v0.1.0 Documentation Generation

Verifies documentation generation aligns with package build.

Power User Variants

Optimized versions

cargo rustc --package mypackage --release

Compile the specific package in release mode.

cargo rustc --package mypackage --no-default-features

Compile while disabling automatic dependencies.

Troubleshooting

Common pitfalls

error: package `mypackage` not found

Solution: Check the package name for correctness in the `Cargo.toml`.

error: cannot find the package specified with the `--package` flag

Solution: Ensure the specified package is declared in the workspace.

error: building package requires features not enabled

Solution: Verify necessary features are enabled in the command.

Command Breakdown

What each part is doing

cargo: Base Command; The executable that performs this operation. Here it runs Cargo before the shell applies any redirect operators.
-p: p| package; The value supplied for p| package.
<package>: package; The value supplied for package.
-p: Command Option; Tool-specific option used by this command invocation.

How To Run

Execution path

Step 1
Run the command: `cargo rustc --package example_package` to build the specified package.
Step 2
Verify the build output in the `target/debug/examples` directory for errors or warnings.

Alternative Approaches

Comparable commands in other tools

Alternative build tools tools for the same job.

Mvn / Package Project Common mvn package Mvn / Package Project Skip Tests Common mvn package -D skipTests Mvn / Package Project Update Dependencies Common mvn package -U Cpio / Extract Files From Archive Cpio Verbose cpio < <archive.cpio> -idv Autopkgtest / Run Specific Test For Package Linux autopkgtest --test-name=<test_name> -- <null>