Update cargo.

Cargo.toml

@@ -11,7 +11,7 @@ categories = ["development-tools"]
 build = "build.rs"
 
 [dependencies]
-cargo = { git = "https://github.com/rust-lang/cargo", rev = "5c3b8f2d9ccc4c6c890f073ccf97115779184cb4" }
+cargo = { git = "https://github.com/rust-lang/cargo", rev = "2a9f16da7ffc4877aacf7547bac705f0d82de2d6" }
 cargo_metadata = "0.6"
 clippy_lints = { git = "https://github.com/rust-lang/rust-clippy", rev = "a3c77f6ad1c1c185e561e9cd7fdec7db569169d1", optional = true }
 env_logger = "0.5"

src/build/cargo_plan.rs

@@ -212,20 +212,21 @@ impl CargoPlan {
             .units
             .iter()
             .filter(|&(&(_, ref target, _), _)| {
-                *target.kind() == TargetKind::CustomBuild && target.src_path().is_path()
+                target.is_custom_build() && target.src_path().is_path()
             })
-            .map(|(key, unit)| (unit.target.src_path().path(), key.clone()))
+            .map(|(key, unit)| (unit.target.src_path().path().unwrap(), key.clone()))
             .collect();
         let other_targets: HashMap<UnitKey, &Path> = self
             .units
             .iter()
-            .filter(|&(&(_, ref target, _), _)| *target.kind() != TargetKind::CustomBuild)
+            .filter(|&(&(_, ref target, _), _)| !target.is_custom_build())
             .map(|(key, unit)| {
                 (
                     key.clone(),
                     unit.target
                         .src_path()
                         .path()
+                        .expect("normal targets should have a path")
                         .parent()
                         .expect("no parent for src_path"),
                 )

src/project_model.rs

@@ -82,7 +82,15 @@ impl ProjectModel {
                     .iter()
                     .find(|t| t.is_lib())
                     // racer expect name 'underscored'(crate) name
-                    .map(|t| (t.src_path().path().to_owned(), t.name().replace('-', "_"))),
+                    .map(|t| {
+                        (
+                            t.src_path()
+                                .path()
+                                .expect("lib must have a path")
+                                .to_owned(),
+                            t.name().replace('-', "_"),
+                        )
+                    }),
                 deps: Vec::new(),
                 edition: match cargo_pkg.manifest().edition() {
                     cargo::core::Edition::Edition2015 => racer::Edition::Ed2015,