Auto merge of rust-lang#14682 - wackbyte:grammar, r=lnicola

fix grammar

Author: bors

crates/project-model/src/workspace.rs

@@ -1266,7 +1266,7 @@ fn add_target_crate_root(
     if is_proc_macro {
         let proc_macro = match build_data.as_ref().map(|it| it.proc_macro_dylib_path.as_ref()) {
             Some(it) => it.cloned().map(|path| Ok((Some(cargo_name.to_owned()), path))),
-            None => Some(Err("crate has not yet been build".to_owned())),
+            None => Some(Err("crate has not yet been built".to_owned())),
         };
         if let Some(proc_macro) = proc_macro {
             proc_macros.insert(crate_id, proc_macro);