Skip to content
Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

cargo check

Checks the code for errors without building a program.

cargo check runs the compiler's analysis without generating an executable, which is faster than cargo build.

Loading interactive…

Examples

  • cargo check prints Checking hello v0.1.0 and reports the same errors as cargo build, but writes no executable to target/debug.

Read the full section →