diff --git a/Cargo.lock b/Cargo.lock
index c84fa0c02d0..949a58e86e5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -113,7 +113,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "cargo_metadata"
 version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/matklad/cargo_metadata.git?branch=well-typed#2f125128c38beeef34e0bfc1bc27861a24753dfe"
 dependencies = [
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -724,7 +724,7 @@ dependencies = [
 name = "ra_lsp_server"
 version = "0.1.0"
 dependencies = [
- "cargo_metadata 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cargo_metadata 0.6.4 (git+https://github.com/matklad/cargo_metadata.git?branch=well-typed)",
  "crossbeam-channel 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "drop_bomb 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1489,7 +1489,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum block-buffer 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a076c298b9ecdb530ed9d967e74a6027d6a7478924520acddcddc24c1c8ab3ab"
 "checksum byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "560c32574a12a89ecd91f5e742165893f86e3ab98d21f8ea548658eb9eef5f40"
 "checksum byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "94f88df23a25417badc922ab0f5716cc1330e87f71ddd9203b3a3ccd9cedf75d"
-"checksum cargo_metadata 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "e5d1b4d380e1bab994591a24c2bdd1b054f64b60bef483a8c598c7c345bc3bbe"
+"checksum cargo_metadata 0.6.4 (git+https://github.com/matklad/cargo_metadata.git?branch=well-typed)" = "<none>"
 "checksum cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4a8b715cb4597106ea87c7c84b2f1d452c7492033765df7f32651e66fcf749"
 "checksum cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "082bb9b28e00d3c9d39cc03e64ce4cea0f1bb9b3fde493f0cbc008472d22bdf4"
 "checksum chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "45912881121cb26fad7c38c17ba7daa18764771836b34fab7d3fbd93ed633878"
diff --git a/Cargo.toml b/Cargo.toml
index c5155e89960..82b08ab40c8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,3 +6,4 @@ incremental = true
 debug = true
 
 [patch.'crates-io']
+cargo_metadata = { git = "https://github.com/matklad/cargo_metadata.git", branch = "well-typed" }
diff --git a/crates/ra_lsp_server/src/project_model.rs b/crates/ra_lsp_server/src/project_model.rs
index ae214946334..ff9befe4691 100644
--- a/crates/ra_lsp_server/src/project_model.rs
+++ b/crates/ra_lsp_server/src/project_model.rs
@@ -2,7 +2,7 @@
 
 use cargo_metadata::{metadata_run, CargoOpt};
 use ra_syntax::SmolStr;
-use rustc_hash::{FxHashMap, FxHashSet};
+use rustc_hash::FxHashMap;
 use failure::{format_err, bail};
 use thread_worker::{WorkerHandle, Worker};
 
@@ -109,11 +109,7 @@ pub fn from_cargo_metadata(path: &Path) -> Result<CargoWorkspace> {
         let mut packages = Vec::new();
         let mut targets = Vec::new();
 
-        let ws_members: FxHashSet<String> = meta
-            .workspace_members
-            .into_iter()
-            .map(|it| it.raw)
-            .collect();
+        let ws_members = &meta.workspace_members;
 
         for meta_pkg in meta.packages {
             let pkg = Package(packages.len());
@@ -121,7 +117,7 @@ pub fn from_cargo_metadata(path: &Path) -> Result<CargoWorkspace> {
             pkg_by_id.insert(meta_pkg.id.clone(), pkg);
             let mut pkg_data = PackageData {
                 name: meta_pkg.name.into(),
-                manifest: PathBuf::from(meta_pkg.manifest_path),
+                manifest: meta_pkg.manifest_path.clone(),
                 targets: Vec::new(),
                 is_member,
                 dependencies: Vec::new(),
@@ -131,7 +127,7 @@ pub fn from_cargo_metadata(path: &Path) -> Result<CargoWorkspace> {
                 targets.push(TargetData {
                     pkg,
                     name: meta_tgt.name.into(),
-                    root: PathBuf::from(meta_tgt.src_path),
+                    root: meta_tgt.src_path.clone(),
                     kind: TargetKind::new(meta_tgt.kind.as_slice()),
                 });
                 pkg_data.targets.push(tgt);
@@ -141,10 +137,11 @@ pub fn from_cargo_metadata(path: &Path) -> Result<CargoWorkspace> {
         let resolve = meta.resolve.expect("metadata executed with deps");
         for node in resolve.nodes {
             let source = pkg_by_id[&node.id];
-            for id in node.dependencies {
-                let target = pkg_by_id[&id];
-                let name: SmolStr = packages[target.0].name.replace('-', "_").into();
-                let dep = PackageDependency { name, pkg: target };
+            for dep_node in node.deps {
+                let dep = PackageDependency {
+                    name: dep_node.name.into(),
+                    pkg: pkg_by_id[&dep_node.pkg],
+                };
                 packages[source.0].dependencies.push(dep);
             }
         }