1 files changed, 21 insertions, 2 deletions

diff --git a/crates/ra_project_model/src/cargo_workspace.rs b/crates/ra_project_model/src/cargo_workspace.rs
index 1832c101f..60cb8c1eb 100644
--- a/crates/ra_project_model/src/cargo_workspace.rs
+++ b/crates/ra_project_model/src/cargo_workspace.rs
@@ -207,9 +207,28 @@ impl CargoWorkspace {
         }
         let resolve = meta.resolve.expect("metadata executed with deps");
         for node in resolve.nodes {
-            let source = pkg_by_id[&node.id];
+            let source = match pkg_by_id.get(&node.id) {
+                Some(&src) => src,
+                // FIXME: replace this and a similar branch below with `.unwrap`, once
+                // https://github.com/rust-lang/cargo/issues/7841
+                // is fixed and hits stable (around 1.43-is probably?).
+                None => {
+                    log::error!("Node id do not match in cargo metadata, ignoring {}", node.id);
+                    continue;
+                }
+            };
             for dep_node in node.deps {
-                let dep = PackageDependency { name: dep_node.name, pkg: pkg_by_id[&dep_node.pkg] };
+                let pkg = match pkg_by_id.get(&dep_node.pkg) {
+                    Some(&pkg) => pkg,
+                    None => {
+                        log::error!(
+                            "Dep node id do not match in cargo metadata, ignoring {}",
+                            dep_node.pkg
+                        );
+                        continue;
+                    }
+                };
+                let dep = PackageDependency { name: dep_node.name, pkg };
                 packages[source].dependencies.push(dep);
             }
             packages[source].features.extend(node.features);