Merge pull request #44 from jyn514/must-use

Warn when commands are not run

Author: pietroalbini

CHANGELOG.md

@@ -9,7 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - allow workspaces by having validate_manifest now use `metadata --no-deps` instead of deprecated `read-manifest`
   therefor no longer failing on workspaces and TomlTweaker no longer removing the workspace table from `Cargo.toml`
-
+- `Command` now warns when it is not used.
 
 ## [0.10.0] - 2020-08-08
 

src/cmd/mod.rs

@@ -188,6 +188,7 @@ impl<'a, B: Runnable> Runnable for &'a B {
 /// output processing, output logging and sandboxing.
 ///
 /// [std]: https://doc.rust-lang.org/std/process/struct.Command.html
+#[must_use = "call `.run()` to run the command"]
 pub struct Command<'w, 'pl> {
     workspace: Option<&'w Workspace>,
     sandbox: Option<SandboxBuilder>,