diff --git a/crates/ra_ide/src/display/navigation_target.rs b/crates/ra_ide/src/display/navigation_target.rs
index 5da28edd24..c7bb1e69f8 100644
--- a/crates/ra_ide/src/display/navigation_target.rs
+++ b/crates/ra_ide/src/display/navigation_target.rs
@@ -92,15 +92,16 @@ impl NavigationTarget {
         let name = module.name(db).map(|it| it.to_string().into()).unwrap_or_default();
         if let Some(src) = module.declaration_source(db) {
             let frange = original_range(db, src.as_ref().map(|it| it.syntax()));
-            return NavigationTarget::from_syntax(
+            let mut res = NavigationTarget::from_syntax(
                 frange.file_id,
                 name,
                 None,
                 frange.range,
                 src.value.syntax().kind(),
-                src.value.doc_comment_text(),
-                src.value.short_label(),
             );
+            res.docs = src.value.doc_comment_text();
+            res.description = src.value.short_label();
+            return res;
         }
         module.to_nav(db)
     }
@@ -130,11 +131,9 @@ impl NavigationTarget {
     }
 
     /// Allows `NavigationTarget` to be created from a `NameOwner`
-    fn from_named(
+    pub(crate) fn from_named(
         db: &RootDatabase,
         node: InFile<&dyn ast::NameOwner>,
-        docs: Option<String>,
-        description: Option<String>,
     ) -> NavigationTarget {
         //FIXME: use `_` instead of empty string
         let name = node.value.name().map(|it| it.text().clone()).unwrap_or_default();
@@ -148,8 +147,6 @@ impl NavigationTarget {
             focus_range,
             frange.range,
             node.value.syntax().kind(),
-            docs,
-            description,
         )
     }
 
@@ -159,8 +156,6 @@ impl NavigationTarget {
         focus_range: Option<TextRange>,
         full_range: TextRange,
         kind: SyntaxKind,
-        docs: Option<String>,
-        description: Option<String>,
     ) -> NavigationTarget {
         NavigationTarget {
             file_id,
@@ -169,8 +164,8 @@ impl NavigationTarget {
             full_range,
             focus_range,
             container_name: None,
-            description,
-            docs,
+            description: None,
+            docs: None,
         }
     }
 }
@@ -238,12 +233,11 @@ where
 {
     fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
         let src = self.source(db);
-        NavigationTarget::from_named(
-            db,
-            src.as_ref().map(|it| it as &dyn ast::NameOwner),
-            src.value.doc_comment_text(),
-            src.value.short_label(),
-        )
+        let mut res =
+            NavigationTarget::from_named(db, src.as_ref().map(|it| it as &dyn ast::NameOwner));
+        res.docs = src.value.doc_comment_text();
+        res.description = src.value.short_label();
+        res
     }
 }
 
@@ -258,15 +252,7 @@ impl ToNav for hir::Module {
             }
         };
         let frange = original_range(db, src.with_value(syntax));
-        NavigationTarget::from_syntax(
-            frange.file_id,
-            name,
-            focus,
-            frange.range,
-            syntax.kind(),
-            None,
-            None,
-        )
+        NavigationTarget::from_syntax(frange.file_id, name, focus, frange.range, syntax.kind())
     }
 }
 
@@ -285,8 +271,6 @@ impl ToNav for hir::ImplDef {
             None,
             frange.range,
             src.value.syntax().kind(),
-            None,
-            None,
         )
     }
 }
@@ -296,12 +280,12 @@ impl ToNav for hir::Field {
         let src = self.source(db);
 
         match &src.value {
-            FieldSource::Named(it) => NavigationTarget::from_named(
-                db,
-                src.with_value(it),
-                it.doc_comment_text(),
-                it.short_label(),
-            ),
+            FieldSource::Named(it) => {
+                let mut res = NavigationTarget::from_named(db, src.with_value(it));
+                res.docs = it.doc_comment_text();
+                res.description = it.short_label();
+                res
+            }
             FieldSource::Pos(it) => {
                 let frange = original_range(db, src.with_value(it.syntax()));
                 NavigationTarget::from_syntax(
@@ -310,8 +294,6 @@ impl ToNav for hir::Field {
                     None,
                     frange.range,
                     it.syntax().kind(),
-                    None,
-                    None,
                 )
             }
         }
@@ -322,12 +304,10 @@ impl ToNav for hir::MacroDef {
     fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
         let src = self.source(db);
         log::debug!("nav target {:#?}", src.value.syntax());
-        NavigationTarget::from_named(
-            db,
-            src.as_ref().map(|it| it as &dyn ast::NameOwner),
-            src.value.doc_comment_text(),
-            None,
-        )
+        let mut res =
+            NavigationTarget::from_named(db, src.as_ref().map(|it| it as &dyn ast::NameOwner));
+        res.docs = src.value.doc_comment_text();
+        res
     }
 }
 
diff --git a/crates/ra_ide/src/runnables.rs b/crates/ra_ide/src/runnables.rs
index 286d45eee9..9239ca61bd 100644
--- a/crates/ra_ide/src/runnables.rs
+++ b/crates/ra_ide/src/runnables.rs
@@ -1,19 +1,19 @@
+use std::fmt;
+
 use hir::{AsAssocItem, Attrs, HirFileId, InFile, Semantics};
 use itertools::Itertools;
+use ra_cfg::CfgExpr;
 use ra_ide_db::RootDatabase;
 use ra_syntax::{
-    ast::{self, AstNode, AttrsOwner, ModuleItemOwner, NameOwner},
-    match_ast, SyntaxNode, TextRange,
+    ast::{self, AstNode, AttrsOwner, DocCommentsOwner, ModuleItemOwner, NameOwner},
+    match_ast, SyntaxNode,
 };
 
-use crate::FileId;
-use ast::DocCommentsOwner;
-use ra_cfg::CfgExpr;
-use std::fmt::Display;
+use crate::{display::ToNav, FileId, NavigationTarget};
 
 #[derive(Debug)]
 pub struct Runnable {
-    pub range: TextRange,
+    pub nav: NavigationTarget,
     pub kind: RunnableKind,
     pub cfg_exprs: Vec<CfgExpr>,
 }
@@ -24,8 +24,8 @@ pub enum TestId {
     Path(String),
 }
 
-impl Display for TestId {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+impl fmt::Display for TestId {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
             TestId::Name(name) => write!(f, "{}", name),
             TestId::Path(path) => write!(f, "{}", path),
@@ -131,7 +131,8 @@ fn runnable_fn(
     let cfg_exprs =
         attrs.by_key("cfg").tt_values().map(|subtree| ra_cfg::parse_cfg(subtree)).collect();
 
-    Some(Runnable { range: fn_def.syntax().text_range(), kind, cfg_exprs })
+    let nav = NavigationTarget::from_named(sema.db, InFile::new(file_id.into(), &fn_def));
+    Some(Runnable { nav, kind, cfg_exprs })
 }
 
 #[derive(Debug)]
@@ -183,7 +184,6 @@ fn runnable_mod(
     if !has_test_function {
         return None;
     }
-    let range = module.syntax().text_range();
     let module_def = sema.to_def(&module)?;
 
     let path = module_def
@@ -197,7 +197,8 @@ fn runnable_mod(
     let cfg_exprs =
         attrs.by_key("cfg").tt_values().map(|subtree| ra_cfg::parse_cfg(subtree)).collect();
 
-    Some(Runnable { range, kind: RunnableKind::TestMod { path }, cfg_exprs })
+    let nav = module_def.to_nav(sema.db);
+    Some(Runnable { nav, kind: RunnableKind::TestMod { path }, cfg_exprs })
 }
 
 #[cfg(test)]
diff --git a/crates/rust-analyzer/src/lsp_ext.rs b/crates/rust-analyzer/src/lsp_ext.rs
index 173c23b9e5..9381f75d39 100644
--- a/crates/rust-analyzer/src/lsp_ext.rs
+++ b/crates/rust-analyzer/src/lsp_ext.rs
@@ -4,7 +4,6 @@ use std::{collections::HashMap, path::PathBuf};
 
 use lsp_types::request::Request;
 use lsp_types::{Position, Range, TextDocumentIdentifier};
-use rustc_hash::FxHashMap;
 use serde::{Deserialize, Serialize};
 
 pub enum AnalyzerStatus {}
@@ -121,25 +120,30 @@ pub struct RunnablesParams {
     pub position: Option<Position>,
 }
 
-// Must strictly correspond to the executable name
+#[derive(Deserialize, Serialize, Debug)]
+#[serde(rename_all = "camelCase")]
+pub struct Runnable {
+    pub label: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub location: Option<lsp_types::LocationLink>,
+    pub kind: RunnableKind,
+    pub args: CargoRunnable,
+}
+
 #[derive(Serialize, Deserialize, Debug)]
 #[serde(rename_all = "lowercase")]
 pub enum RunnableKind {
     Cargo,
-    Rustc,
-    Rustup,
 }
 
 #[derive(Deserialize, Serialize, Debug)]
 #[serde(rename_all = "camelCase")]
-pub struct Runnable {
-    pub range: Range,
-    pub label: String,
-    pub kind: RunnableKind,
-    pub args: Vec<String>,
-    pub extra_args: Vec<String>,
-    pub env: FxHashMap<String, String>,
-    pub cwd: Option<PathBuf>,
+pub struct CargoRunnable {
+    pub workspace_root: Option<PathBuf>,
+    // command, --package and --lib stuff
+    pub cargo_args: Vec<String>,
+    // stuff after --
+    pub executable_args: Vec<String>,
 }
 
 pub enum InlayHints {}
diff --git a/crates/rust-analyzer/src/main_loop/handlers.rs b/crates/rust-analyzer/src/main_loop/handlers.rs
index 410c654abe..7fd6917649 100644
--- a/crates/rust-analyzer/src/main_loop/handlers.rs
+++ b/crates/rust-analyzer/src/main_loop/handlers.rs
@@ -23,7 +23,6 @@ use ra_ide::{
 use ra_prof::profile;
 use ra_project_model::TargetKind;
 use ra_syntax::{AstNode, SyntaxKind, TextRange, TextSize};
-use rustc_hash::FxHashMap;
 use serde::{Deserialize, Serialize};
 use serde_json::to_value;
 use stdx::format_to;
@@ -401,7 +400,7 @@ pub fn handle_runnables(
     let cargo_spec = CargoTargetSpec::for_file(&world, file_id)?;
     for runnable in world.analysis().runnables(file_id)? {
         if let Some(offset) = offset {
-            if !runnable.range.contains_inclusive(offset) {
+            if !runnable.nav.full_range().contains_inclusive(offset) {
                 continue;
             }
         }
@@ -422,25 +421,31 @@ pub fn handle_runnables(
         Some(spec) => {
             for &cmd in ["check", "test"].iter() {
                 res.push(lsp_ext::Runnable {
-                    range: Default::default(),
                     label: format!("cargo {} -p {}", cmd, spec.package),
+                    location: None,
                     kind: lsp_ext::RunnableKind::Cargo,
-                    args: vec![cmd.to_string(), "--package".to_string(), spec.package.clone()],
-                    extra_args: Vec::new(),
-                    env: FxHashMap::default(),
-                    cwd: workspace_root.map(|root| root.to_owned()),
+                    args: lsp_ext::CargoRunnable {
+                        workspace_root: workspace_root.map(|root| root.to_owned()),
+                        cargo_args: vec![
+                            cmd.to_string(),
+                            "--package".to_string(),
+                            spec.package.clone(),
+                        ],
+                        executable_args: Vec::new(),
+                    },
                 })
             }
         }
         None => {
             res.push(lsp_ext::Runnable {
-                range: Default::default(),
                 label: "cargo check --workspace".to_string(),
+                location: None,
                 kind: lsp_ext::RunnableKind::Cargo,
-                args: vec!["check".to_string(), "--workspace".to_string()],
-                extra_args: Vec::new(),
-                env: FxHashMap::default(),
-                cwd: workspace_root.map(|root| root.to_owned()),
+                args: lsp_ext::CargoRunnable {
+                    workspace_root: workspace_root.map(|root| root.to_owned()),
+                    cargo_args: vec!["check".to_string(), "--workspace".to_string()],
+                    executable_args: Vec::new(),
+                },
             });
         }
     }
@@ -782,10 +787,11 @@ pub fn handle_code_lens(
                 }
             };
 
-            let mut r = to_proto::runnable(&world, file_id, runnable)?;
+            let range = to_proto::range(&line_index, runnable.nav.range());
+            let r = to_proto::runnable(&world, file_id, runnable)?;
             if world.config.lens.run {
                 let lens = CodeLens {
-                    range: r.range,
+                    range,
                     command: Some(Command {
                         title: run_title.to_string(),
                         command: "rust-analyzer.runSingle".into(),
@@ -797,13 +803,8 @@ pub fn handle_code_lens(
             }
 
             if debugee && world.config.lens.debug {
-                if r.args[0] == "run" {
-                    r.args[0] = "build".into();
-                } else {
-                    r.args.push("--no-run".into());
-                }
                 let debug_lens = CodeLens {
-                    range: r.range,
+                    range,
                     command: Some(Command {
                         title: "Debug".into(),
                         command: "rust-analyzer.debugSingle".into(),
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 66144fe241..85304aa877 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -8,7 +8,6 @@ use ra_ide::{
 };
 use ra_syntax::{SyntaxKind, TextRange, TextSize};
 use ra_vfs::LineEndings;
-use rustc_hash::FxHashMap;
 
 use crate::{
     cargo_target_spec::CargoTargetSpec, lsp_ext, semantic_tokens, world::WorldSnapshot, Result,
@@ -638,9 +637,8 @@ pub(crate) fn runnable(
 ) -> Result<lsp_ext::Runnable> {
     let spec = CargoTargetSpec::for_file(world, file_id)?;
     let target = spec.as_ref().map(|s| s.target.clone());
-    let (args, extra_args) =
+    let (cargo_args, executable_args) =
         CargoTargetSpec::runnable_args(spec, &runnable.kind, &runnable.cfg_exprs)?;
-    let line_index = world.analysis().file_line_index(file_id)?;
     let label = match &runnable.kind {
         RunnableKind::Test { test_id, .. } => format!("test {}", test_id),
         RunnableKind::TestMod { path } => format!("test-mod {}", path),
@@ -650,18 +648,16 @@ pub(crate) fn runnable(
             target.map_or_else(|| "run binary".to_string(), |t| format!("run {}", t))
         }
     };
+    let location = location_link(world, None, runnable.nav)?;
 
     Ok(lsp_ext::Runnable {
-        range: range(&line_index, runnable.range),
         label,
+        location: Some(location),
         kind: lsp_ext::RunnableKind::Cargo,
-        args,
-        extra_args,
-        env: {
-            let mut m = FxHashMap::default();
-            m.insert("RUST_BACKTRACE".to_string(), "short".to_string());
-            m
+        args: lsp_ext::CargoRunnable {
+            workspace_root: world.workspace_root_for(file_id).map(|root| root.to_owned()),
+            cargo_args,
+            executable_args,
         },
-        cwd: world.workspace_root_for(file_id).map(|root| root.to_owned()),
     })
 }
diff --git a/editors/code/src/debug.ts b/editors/code/src/debug.ts
index 1e421d407b..a0c9b3ab2e 100644
--- a/editors/code/src/debug.ts
+++ b/editors/code/src/debug.ts
@@ -114,8 +114,8 @@ async function getDebugConfiguration(ctx: Ctx, runnable: ra.Runnable): Promise<v
 }
 
 async function getDebugExecutable(runnable: ra.Runnable): Promise<string> {
-    const cargo = new Cargo(runnable.cwd || '.', debugOutput);
-    const executable = await cargo.executableFromArgs(runnable.args);
+    const cargo = new Cargo(runnable.args.workspaceRoot || '.', debugOutput);
+    const executable = await cargo.executableFromArgs(runnable.args.cargoArgs);
 
     // if we are here, there were no compilation errors.
     return executable;
@@ -127,8 +127,8 @@ function getLldbDebugConfig(runnable: ra.Runnable, executable: string, sourceFil
         request: "launch",
         name: runnable.label,
         program: executable,
-        args: runnable.extraArgs,
-        cwd: runnable.cwd,
+        args: runnable.args.executableArgs,
+        cwd: runnable.args.workspaceRoot,
         sourceMap: sourceFileMap,
         sourceLanguages: ["rust"]
     };
@@ -140,8 +140,8 @@ function getCppvsDebugConfig(runnable: ra.Runnable, executable: string, sourceFi
         request: "launch",
         name: runnable.label,
         program: executable,
-        args: runnable.extraArgs,
-        cwd: runnable.cwd,
+        args: runnable.args.executableArgs,
+        cwd: runnable.args.workspaceRoot,
         sourceFileMap: sourceFileMap,
     };
 }
diff --git a/editors/code/src/lsp_ext.ts b/editors/code/src/lsp_ext.ts
index 3e0b606997..73d5736787 100644
--- a/editors/code/src/lsp_ext.ts
+++ b/editors/code/src/lsp_ext.ts
@@ -46,16 +46,15 @@ export interface RunnablesParams {
     position: lc.Position | null;
 }
 
-export type RunnableKind = "cargo" | "rustc" | "rustup";
-
 export interface Runnable {
-    range: lc.Range;
     label: string;
-    kind: RunnableKind;
-    args: string[];
-    extraArgs: string[];
-    env: { [key: string]: string };
-    cwd: string | null;
+    location?: lc.LocationLink;
+    kind: "cargo";
+    args: {
+        workspaceRoot?: string;
+        cargoArgs: string[];
+        executableArgs: string[];
+    };
 }
 export const runnables = new lc.RequestType<RunnablesParams, Runnable[], void>("rust-analyzer/runnables");
 
diff --git a/editors/code/src/run.ts b/editors/code/src/run.ts
index 5fc4f8e41b..5c790741f3 100644
--- a/editors/code/src/run.ts
+++ b/editors/code/src/run.ts
@@ -103,18 +103,27 @@ interface CargoTaskDefinition extends vscode.TaskDefinition {
     env?: { [key: string]: string };
 }
 
-export function createTask(spec: ra.Runnable): vscode.Task {
+export function createTask(runnable: ra.Runnable): vscode.Task {
     const TASK_SOURCE = 'Rust';
+
+    let command;
+    switch (runnable.kind) {
+        case "cargo": command = toolchain.getPathForExecutable("cargo");
+    }
+    const args = runnable.args.cargoArgs;
+    if (runnable.args.executableArgs.length > 0) {
+        args.push('--', ...runnable.args.executableArgs);
+    }
     const definition: CargoTaskDefinition = {
         type: 'cargo',
-        label: spec.label,
-        command: toolchain.getPathForExecutable(spec.kind),
-        args: spec.extraArgs ? [...spec.args, '--', ...spec.extraArgs] : spec.args,
-        env: Object.assign({}, process.env, spec.env),
+        label: runnable.label,
+        command,
+        args,
+        env: Object.assign({}, process.env as { [key: string]: string }, { "RUST_BACKTRACE": "short" }),
     };
 
     const execOption: vscode.ShellExecutionOptions = {
-        cwd: spec.cwd || '.',
+        cwd: runnable.args.workspaceRoot || '.',
         env: definition.env,
     };
     const exec = new vscode.ShellExecution(