Error deleting file: Operation not permitted

[jefripunza]

How can we reproduce the crash?

JS Snippet

import fs from "fs";
import path from "path";

import express from "express";
import cors from "cors";
import helmet from "helmet";
import dotenv from "dotenv";
import morgan from "morgan";
import axios from "axios";
import unzipper from "unzipper";

const icon_urls = [
  // download all icons and save to icon folder
  "https://phosphoricons.com/assets/phosphor-icons.zip",
];

// make icon folder, if it doesn't exist
if (!fs.existsSync("./icon")) {
  fs.mkdirSync("./icon");
}

// delete all files in icon folder
fs.readdirSync("./icon").forEach((file) => {
  try {
    fs.unlinkSync(path.join("./icon", file));
  } catch (err) {
    console.error(`Error deleting file ${file}: ${(err as Error).message}`);
  }
});

console.log("Downloading icons!");
for (const url of icon_urls) {
  const response = await axios.get(url, { responseType: "arraybuffer" });
  const buffer = Buffer.from(response.data, "binary");
  const filename = url.split("/").pop() as string;
  const file = await Bun.file(`./icon/${filename}`);
  const writer = await file.writer();
  await writer.write(buffer);

  // if file is zipped, extract it
  if (filename.endsWith(".zip")) {
    const directory = await unzipper.Open.file(`./icon/${filename}`);
    await directory.extract({ path: "./icon" });
  }
}

dotenv.config();

const app = express();
app.use(cors());
app.use(helmet());
app.use(morgan("dev"));

app.get("/", async (req, res) => {
  res.json({
    message: "Hello, world!",
  });
});

app.listen(3000, () => {
  console.log("Server is running on port 3000");
});

Relevant log output

$ bun run --watch index.ts
Error deleting file Fonts: Operation not permitted
Error deleting file SVGs Flat: Operation not permitted
Downloading icons!
============================================================
Bun v1.1.40 (b5b51004) Windows x64
Windows v.win10_fe
CPU: sse42 avx avx2
Args: "bun" "run" "--watch" "index.ts"
Features: fetch jsc tsconfig(15) 
Builtins: "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:constants" "node:crypto" "node:events" "node:fs" "node:http" "node:https" "node:net" "node:os" "node:path" "node:querystring" "node:stream" "node:string_decoder" "node:tty" "node:url" "node:util" "node:util/types" "node:zlib" 
Elapsed: 14009ms | User: 4734ms | Sys: 3515ms
RSS: 0.83GB | Peak: 0.83GB | Commit: 1.05GB | Faults: 243609

panic(main thread): Segmentation fault at address 0x0
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

 https://bun.report/1.1.40/wr1b5b5100Ahg87//DA2AA

--- Bun is auto-restarting due to crash [time: 1734578455625] ---
Error deleting file Fonts: Operation not permitted
Error deleting file SVGs Flat: Operation not permitted
Downloading icons!
============================================================
Bun v1.1.40 (b5b51004) Windows x64
Windows v.win10_fe
CPU: sse42 avx avx2
Args: "bun" "run" "--watch" "index.ts"
Features: fetch jsc tsconfig(15) 
Builtins: "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:constants" "node:crypto" "node:events" "node:fs" "node:http" "node:https" "node:net" "node:os" "node:path" "node:querystring" "node:stream" "node:string_decoder" "node:tty" "node:url" "node:util" "node:util/types" "node:zlib" 
Elapsed: 12330ms | User: 2921ms | Sys: 2343ms
RSS: 0.78GB | Peak: 0.78GB | Commit: 0.97GB | Faults: 224464

panic(main thread): cast causes pointer to be null
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

 https://bun.report/1.1.40/wr1b5b5100Ahg87//Dwx6kNqivvrB8nxwrB6+uwrB2g+sMk/79G29jimBkv/8F6xo9F0z+gGA0eNpLTiwuUUhOLC1OLVYoyM/MK0ktUijJV0hKVcgrzckBAK96CzY

--- Bun is auto-restarting due to crash [time: 1734578468069] ---
Error deleting file Fonts: Operation not permitted
Error deleting file SVGs Flat: Operation not permitted
Downloading icons!

Stack Trace (bun.report)

Bun v1.1.40 (b5b5100) on windows x86_64 [RunCommand]

panic: cast causes pointer to be null

• bun.zig:341: cast
• queue.h:33: uv__queue_empty
• req-inl.h:189: uv__process_reqs
• core.c:657: uv_run
• uws.zig:4290: tickWithTimeout
• javascript.zig:3189: loadEntryPoint
• bindings.cpp:5068: JSC__VM__holdAPILock
• shimmer.zig:201: cppFn
• run_command.zig:1373: exec
• cli.zig:2078: start

Features: fetch, jsc, tsconfig, tsconfig

_{Sentry Issue: BUN-A0J}