racket extension builds, but fails to start, on Gram #362

extension.toml

id = "racket"
name = "Racket"
description = "Racket support."
version = "0.1.1"
schema_version = 1
authors = ["Mikayla Maki <mikayla@zed.dev>"]
repository = "https://github.com/zed-extensions/racket"
[language_servers.racket-lsp]
name = "racket-lsp"
language = "Racket"
[grammars.racket]
repository = "https://github.com/zed-industries/tree-sitter-racket"
commit = "beb29de2b668110e69df0c6d51649c3e2c91d863"

Cargo.toml

[package]
name = "racket"
version = "0.1.1"
edition = "2024"
publish = false
license = "Apache-2.0"
[lib]
path = "src/racket.rs"
crate-type = ["cdylib"]
[dependencies]
zed_extension_api = "0.6.0"

$ pacman -Q rust clang
rust 1:1.96.1-1
clang 22.1.6-1
$ pacman -Qs wasm
local/rust-wasm 1:1.96.1-1
 WebAssembly targets for Rust
local/wasm-component-ld 0.5.25-1
 Command line linker for creating WebAssembly components
local/wasm-tools 1.252.0-1
 Low level tooling for WebAssembly in Rust
$ pacman -Qs wasi
local/wasi-compiler-rt 22.1.0-2
 Compiler runtime libraries for clang (WASI)
local/wasi-libc 1:0+592+161b3195-1
 WASI libc implementation for WebAssembly

$ racket --version
Welcome to Racket v8.18 [cs].
$ raco pkg show racket-langserver
Installation-wide:
 [none]
User-specific for installation "8.18":
 Package Checksum Source
 racket-langserver 5cbf431c8e7e62c7... catalog...erver.git
$ which racket
/usr/bin/racket

2026年07月01日T16:03:37-04:00 INFO [gram] ========== starting gram 3.0.1 sha=unknown ==========
2026年07月01日T16:03:37-04:00 INFO [gpui::platform::wgpu::wgpu_context] Selected GPU adapter: "Intel(R) Iris(R) Xe Graphics (ADL GT2)" (Vulkan)
2026年07月01日T16:03:37-04:00 INFO [gpui::platform::linux::platform] activate is not implemented on Linux, ignoring the call
2026年07月01日T16:03:37-04:00 INFO [gram::gram] Using GPU: GpuSpecs { is_software_emulated: false, device_name: "Intel(R) Iris(R) Xe Graphics (ADL GT2)", driver_name: "Intel open-source Mesa driver", driver_info: "Mesa 26.1.3-arch1.2" }
2026年07月01日T16:03:37-04:00 INFO [util] set environment variables from shell:/usr/bin/bash, path:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
2026年07月01日T16:03:39-04:00 INFO [extensions_ui] extensions: []
2026年07月01日T16:03:43-04:00 INFO [extension::extension_builder] compile_extension: "/tmp/.tmp02PAd9racket/racket" ExtensionManifest { id: "racket", name: "Racket", version: "0.1.1", schema_version: SchemaVersion(1), description: Some("Racket support."), repository: Some("https://github.com/zed-extensions/racket"), authors: ["Mikayla Maki <mikayla@zed.dev>"], lib: LibManifestEntry { kind: Some(Rust), version: None }, themes: [], icon_themes: [], languages: ["languages/racket"], grammars: {"racket": GrammarManifestEntry { repository: "https://github.com/zed-industries/tree-sitter-racket", rev: "beb29de2b668110e69df0c6d51649c3e2c91d863", path: None }}, language_servers: {LanguageServerName("racket-lsp"): LanguageServerManifestEntry { language: Some(LanguageName("Racket")), languages: [], language_ids: {}, code_action_kinds: None }}, snippets: None, capabilities: [], debug_adapters: {}, debug_locators: {} }
2026年07月01日T16:03:43-04:00 INFO [extension::extension_builder] compiling Rust extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:03:43-04:00 INFO [extension::extension_builder] compiling Rust crate for extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:04:00-04:00 INFO [extension::extension_builder] compiled Rust crate for extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:04:00-04:00 INFO [extension::extension_builder] encoding wasm component for extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:04:00-04:00 INFO [extension::extension_builder] extension /tmp/.tmp02PAd9racket/racket written to /tmp/.tmp02PAd9racket/racket/extension.wasm
2026年07月01日T16:04:00-04:00 INFO [extension::extension_builder] compiled Rust extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:04:00-04:00 INFO [extension::extension_builder] compiling grammar racket for extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:04:02-04:00 INFO [extension::extension_builder] un-tarring wasi-sdk to /home/wren/.local/share/gram/extensions/build/wasi-sysroot-temp
2026年07月01日T16:04:02-04:00 INFO [extension::extension_builder] finished downloading wasi-sysroot
2026年07月01日T16:04:02-04:00 INFO [extension::extension_builder] checking out racket parser
2026年07月01日T16:04:02-04:00 INFO [extension::extension_builder] git_dir="/tmp/.tmp02PAd9racket/racket/grammars/racket/.git"
2026年07月01日T16:04:02-04:00 INFO [extension::extension_builder] checkout_repo: running git init /tmp/.tmp02PAd9racket/racket/grammars/racket
2026年07月01日T16:04:02-04:00 INFO [extension::extension_builder] checkout_repo: running git --git-dir /tmp/.tmp02PAd9racket/racket/grammars/racket/.git remote add origin https://github.com/zed-industries/tree-sitter-racket
2026年07月01日T16:04:02-04:00 INFO [extension::extension_builder] compiling racket parser
2026年07月01日T16:04:04-04:00 INFO [extension::extension_builder] compiled grammar racket for extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:04:04-04:00 INFO [extension::extension_builder] finished compiling extension /tmp/.tmp02PAd9racket/racket
2026年07月01日T16:04:04-04:00 INFO [extension_host] Compiled "racket" to "/home/wren/.local/share/gram/extensions/installed"
2026年07月01日T16:04:04-04:00 INFO [extension_host] Now this should exist.. /home/wren/.local/share/gram/extensions/installed/racket
2026年07月01日T16:04:04-04:00 INFO [extension_host] copy_dir from=/tmp/.tmp02PAd9racket/racket, to=/home/wren/.local/share/gram/extensions/installed/racket
2026年07月01日T16:04:05-04:00 INFO [extension_host] Rebuilding extension index at "/home/wren/.local/share/gram/extensions/index.json"
2026年07月01日T16:04:05-04:00 INFO [extension_host] from "/home/wren/.local/share/gram/extensions/installed"
2026年07月01日T16:04:05-04:00 INFO [extension_host] in "/home/wren/.local/share/gram/extensions/work"
2026年07月01日T16:04:05-04:00 INFO [extension_host] Found manifest: ExtensionManifest { id: "racket", name: "Racket", version: "0.1.1", schema_version: SchemaVersion(1), description: Some("Racket support."), repository: Some("https://github.com/zed-extensions/racket"), authors: ["Mikayla Maki <mikayla@zed.dev>"], lib: LibManifestEntry { kind: None, version: None }, themes: [], icon_themes: [], languages: [], grammars: {"racket": GrammarManifestEntry { repository: "https://github.com/zed-industries/tree-sitter-racket", rev: "beb29de2b668110e69df0c6d51649c3e2c91d863", path: None }}, language_servers: {LanguageServerName("racket-lsp"): LanguageServerManifestEntry { language: Some(LanguageName("Racket")), languages: [], language_ids: {}, code_action_kinds: None }}, snippets: None, capabilities: [], debug_adapters: {}, debug_locators: {} } (dev: false)
2026年07月01日T16:04:05-04:00 INFO [extension_host] rebuilt extension index in 3.145357ms
2026年07月01日T16:04:05-04:00 INFO [extension_host] extensions updated. loading 1, reloading 0, unloading 0
2026年07月01日T16:04:05-04:00 INFO [extensions_ui] extensions: [ExtensionManifest { id: "racket", name: "Racket", version: "0.1.1", schema_version: SchemaVersion(1), description: Some("Racket support."), repository: Some("https://github.com/zed-extensions/racket"), authors: ["Mikayla Maki <mikayla@zed.dev>"], lib: LibManifestEntry { kind: Some(Rust), version: None }, themes: [], icon_themes: [], languages: ["languages/racket"], grammars: {"racket": GrammarManifestEntry { repository: "https://github.com/zed-industries/tree-sitter-racket", rev: "beb29de2b668110e69df0c6d51649c3e2c91d863", path: None }}, language_servers: {LanguageServerName("racket-lsp"): LanguageServerManifestEntry { language: Some(LanguageName("Racket")), languages: [], language_ids: {}, code_action_kinds: None }}, snippets: None, capabilities: [], debug_adapters: {}, debug_locators: {} }]
2026年07月01日T16:04:21-04:00 INFO [extensions_ui] extensions: []
2026年07月01日T16:04:22-04:00 INFO [extensions_ui] extensions: [ExtensionManifest { id: "racket", name: "Racket", version: "0.1.1", schema_version: SchemaVersion(1), description: Some("Racket support."), repository: Some("https://github.com/zed-extensions/racket"), authors: ["Mikayla Maki <mikayla@zed.dev>"], lib: LibManifestEntry { kind: Some(Rust), version: None }, themes: [], icon_themes: [], languages: ["languages/racket"], grammars: {"racket": GrammarManifestEntry { repository: "https://github.com/zed-industries/tree-sitter-racket", rev: "beb29de2b668110e69df0c6d51649c3e2c91d863", path: None }}, language_servers: {LanguageServerName("racket-lsp"): LanguageServerManifestEntry { language: Some(LanguageName("Racket")), languages: [], language_ids: {}, code_action_kinds: None }}, snippets: None, capabilities: [], debug_adapters: {}, debug_locators: {} }]
2026年07月01日T16:04:35-04:00 WARN [zbus::proxy] Failed to populate properties cache via GetAll: org.freedesktop.DBus.Error.UnknownMethod: Object does not exist at path "/org/freedesktop/portal/desktop/request/1_187/ashpd_AsLmJz2MTc". Property change streams will not produce values.
2026年07月01日T16:04:49-04:00 INFO [gram::gram] Using GPU: GpuSpecs { is_software_emulated: false, device_name: "Intel(R) Iris(R) Xe Graphics (ADL GT2)", driver_name: "Intel open-source Mesa driver", driver_info: "Mesa 26.1.3-arch1.2" }
2026年07月01日T16:04:52-04:00 INFO [sqlez::migrations] Found 17 foreign key relationships to check
2026年07月01日T16:04:52-04:00 WARN [language] unrecognized capture name 'start-symbol' in Racket outline TreeSitter query (suppress this warning by prefixing with '_')
2026年07月01日T16:04:53-04:00 INFO [lsp] starting language server process. binary path: "/usr/bin/racket", working directory: "/home/wren/Documents/folder", args: ["-l", "racket-langserver"]
2026年07月01日T16:04:54-04:00 ERROR [project::lsp_store] Failed to start language server "racket-lsp": initializing server racket-lsp, id 0
Caused by:
 initialize failed
2026年07月01日T16:05:20-04:00 INFO [notify::inotify] unable to remove watch descriptor from inotify: Os { code: 22, kind: InvalidInput, message: "Invalid argument" }
2026年07月01日T16:05:20-04:00 INFO [lsp] starting language server process. binary path: "/usr/bin/racket", working directory: "/home/wren/Documents/folder", args: ["-l", "racket-langserver"]
2026年07月01日T16:05:21-04:00 ERROR [project::lsp_store] Failed to start language server "racket-lsp": initializing server racket-lsp, id 1
Caused by:
 initialize failed
2026年07月01日T16:05:32-04:00 INFO [lsp] starting language server process. binary path: "/usr/bin/racket", working directory: "/home/wren/Documents/Class/folder", args: ["-l", "racket-langserver"]
2026年07月01日T16:05:33-04:00 ERROR [project::lsp_store] Failed to start language server "racket-lsp": initializing server racket-lsp, id 2
Caused by:
 initialize failed

{
 "jsonrpc": "2.0",
 "id": 0,
 "method": "initialize",
 "params": {
 "processId": 7266,
 "rootUri": "file:///home/wren/Documents/folder",
 "capabilities": {
 "workspace": {
 "applyEdit": true,
 "workspaceEdit": {
 "documentChanges": true,
 "resourceOperations": ["create", "rename", "delete"],
 "snippetEditSupport": true
 },
 "didChangeConfiguration": { "dynamicRegistration": true },
 "didChangeWatchedFiles": {
 "dynamicRegistration": true,
 "relativePatternSupport": true
 },
 "symbol": { "dynamicRegistration": true },
 "executeCommand": { "dynamicRegistration": true },
 "workspaceFolders": true,
 "configuration": true,
 "codeLens": { "refreshSupport": true },
 "fileOperations": {
 "dynamicRegistration": true,
 "didRename": true,
 "willRename": true
 },
 "inlayHint": { "refreshSupport": true },
 "diagnostics": { "refreshSupport": true }
 },
 "textDocument": {
 "synchronization": { "dynamicRegistration": true, "didSave": true },
 "completion": {
 "dynamicRegistration": true,
 "completionItem": {
 "snippetSupport": true,
 "documentationFormat": ["markdown", "plaintext"],
 "deprecatedSupport": true,
 "tagSupport": { "valueSet": [1] },
 "insertReplaceSupport": true,
 "resolveSupport": {
 "properties": [
 "additionalTextEdits",
 "command",
 "detail",
 "documentation"
 ]
 },
 "insertTextModeSupport": { "valueSet": [1, 2] },
 "labelDetailsSupport": true
 },
 "contextSupport": true,
 "insertTextMode": 2,
 "completionList": {
 "itemDefaults": [
 "commitCharacters",
 "editRange",
 "insertTextMode",
 "insertTextFormat",
 "data"
 ]
 }
 },
 "hover": { "dynamicRegistration": true, "contentFormat": ["markdown"] },
 "signatureHelp": {
 "dynamicRegistration": true,
 "signatureInformation": {
 "documentationFormat": ["markdown", "plaintext"],
 "parameterInformation": { "labelOffsetSupport": true },
 "activeParameterSupport": true
 }
 },
 "documentSymbol": {
 "dynamicRegistration": true,
 "hierarchicalDocumentSymbolSupport": true
 },
 "formatting": { "dynamicRegistration": true },
 "rangeFormatting": { "dynamicRegistration": true },
 "onTypeFormatting": { "dynamicRegistration": true },
 "definition": { "dynamicRegistration": true, "linkSupport": true },
 "codeAction": {
 "dynamicRegistration": true,
 "codeActionLiteralSupport": {
 "codeActionKind": { "valueSet": ["refactor", "quickfix", "source"] }
 },
 "dataSupport": true,
 "resolveSupport": {
 "properties": [
 "kind",
 "diagnostics",
 "isPreferred",
 "disabled",
 "edit",
 "command"
 ]
 }
 },
 "codeLens": { "dynamicRegistration": true },
 "colorProvider": { "dynamicRegistration": true },
 "rename": {
 "dynamicRegistration": true,
 "prepareSupport": true,
 "prepareSupportDefaultBehavior": 1
 },
 "publishDiagnostics": {
 "relatedInformation": true,
 "tagSupport": { "valueSet": [1, 2] },
 "versionSupport": true,
 "codeDescriptionSupport": true,
 "dataSupport": true
 },
 "inlayHint": {
 "dynamicRegistration": true,
 "resolveSupport": {
 "properties": [
 "textEdits",
 "tooltip",
 "label.tooltip",
 "label.location",
 "label.command"
 ]
 }
 },
 "diagnostic": {
 "dynamicRegistration": true,
 "relatedDocumentSupport": true
 }
 },
 "window": {
 "workDoneProgress": true,
 "showMessage": {
 "messageActionItem": { "additionalPropertiesSupport": true }
 }
 },
 "general": { "positionEncodings": ["utf-16"] },
 "experimental": { "serverStatusNotification": true, "localDocs": true }
 },
 "workspaceFolders": [
 {
 "uri": "file:///home/wren/Documents/folder",
 "name": ""
 }
 ],
 "clientInfo": { "name": "Gram", "version": "3.0.1" }
 }
}

diff --git a/racket-langserver-gram.json b/racket-langserver-zed.json
index 2364e6c..8f2aa98 100644
--- a/racket-langserver-gram.json
+++ b/racket-langserver-zed.json
@@ -3,7 +3,8 @@
 "id": 0,
 "method": "initialize",
 "params": {
- "processId": 7266,
+ "processId": 7451,
+ "rootPath": "/home/wren/Documents/folder",
 "rootUri": "file:///home/wren/Documents/folder",
 "capabilities": {
 "workspace": {
@@ -22,6 +23,7 @@
 "executeCommand": { "dynamicRegistration": true },
 "workspaceFolders": true,
 "configuration": true,
+ "semanticTokens": { "refreshSupport": true },
 "codeLens": { "refreshSupport": true },
 "fileOperations": {
 "dynamicRegistration": true,
@@ -99,6 +101,7 @@
 }
 },
 "codeLens": { "dynamicRegistration": true },
+ "documentLink": { "dynamicRegistration": true, "tooltipSupport": true },
 "colorProvider": { "dynamicRegistration": true },
 "rename": {
 "dynamicRegistration": true,
@@ -112,6 +115,61 @@
 "codeDescriptionSupport": true,
 "dataSupport": true
 },
+ "foldingRange": {
+ "dynamicRegistration": true,
+ "lineFoldingOnly": false,
+ "foldingRangeKind": { "valueSet": ["comment", "region", "imports"] },
+ "foldingRange": { "collapsedText": true }
+ },
+ "semanticTokens": {
+ "dynamicRegistration": false,
+ "requests": { "full": { "delta": true } },
+ "tokenTypes": [
+ "namespace",
+ "class",
+ "enum",
+ "interface",
+ "struct",
+ "typeParameter",
+ "type",
+ "parameter",
+ "variable",
+ "property",
+ "enumMember",
+ "decorator",
+ "function",
+ "method",
+ "macro",
+ "label",
+ "comment",
+ "string",
+ "keyword",
+ "number",
+ "regexp",
+ "operator",
+ "modifier",
+ "event",
+ "lifetime"
+ ],
+ "tokenModifiers": [
+ "declaration",
+ "definition",
+ "readonly",
+ "static",
+ "deprecated",
+ "abstract",
+ "async",
+ "modification",
+ "documentation",
+ "defaultLibrary",
+ "constant"
+ ],
+ "formats": ["relative"],
+ "overlappingTokenSupport": true,
+ "multilineTokenSupport": true,
+ "serverCancelSupport": true,
+ "augmentsSyntaxTokens": true
+ },
 "inlayHint": {
 "dynamicRegistration": true,
 "resolveSupport": {
@@ -144,6 +202,6 @@
 "name": ""
 }
 ],
- "clientInfo": { "name": "Gram", "version": "3.0.1" }
+ "clientInfo": { "name": "Zed", "version": "1.9.0+stable" }
 }
 }

#!/usr/bin/env node

const process = require('process');
const fs = require('fs');
const child_process = require('child_process');
let logIn = fs.createWriteStream('/tmp/racket-langserver-stdin.log');
let logOut = fs.createWriteStream('/tmp/racket-langserver-stdout.log');
let child = child_process.execFile('/usr/bin/racket-old', ['-l', 'racket-langserver']);
process.stdin.on('data', buf => {
	console.log('data in');
	logIn.write(buf);
	child.stdin.write(buf);
});
child.stdout.on('data', buf => {
	console.log('data out');
	logOut.write(buf);
	process.stdout.write(buf);
});
process.stdin.on('end', () => {
	console.log('finish');
	logIn.end();
	child.stdin.end();
});
child.stdout.on('end', () => {
	console.log('end');
	logOut.end();
	process.stdout.end();
});