Segmentation fault when a plugin calls build.onEnd

[lilnasy]

How can we reproduce the crash?

Bun.build({
    entrypoints: ["./build.js"],
    plugins: [{
        name: "plugin",
        setup(build) {
            build.onEnd()
        }
    }]
})

Relevant log output

============================================================
Bun v1.2.2 (c1708ea6) Linux x64
Linux Kernel v6.1.91 | glibc v2.35
CPU: sse42 popcnt avx avx2
Args: "bun" "build.js"
Features: jsc 
Builtins: "bun:main" 
Elapsed: 14ms | User: 0ms | Sys: 19ms
RSS: 1.07GB | Peak: 33.47MB | Commit: 1.07GB | Faults: 0

panic(main thread): Segmentation fault at address 0x4
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/1.2.2/la1c1708eaAgggEomg8oE+xyQgqh3sE+9q4sE+y6yrE8w0xrEynxlqFmpy1+E_gm//9DA2AI

Illegal instruction

Stack Trace (bun.report)

Bun v1.2.0 (b0c5a76) on windows x86_64 [RunCommand]

Segmentation fault at address 0x00000004

• VirtualRegister.cpp:83: JSC::VirtualRegister::VirtualRegister
• BytecodeGenerator.cpp:3890: JSC::BytecodeGenerator::emitReturn
• Nodes.h:159: JSC::Node::endOffset
• NodesCodegen.cpp:4286: JSC::SourceElements::emitBytecode
• Vector.h:859: WTF::Vector<JSC::BytecodeGenerator::CatchEntry,0,WTF::CrashOnOverflow,16,WTF::FastMalloc>::end
• BytecodeGenerator.h:392: JSC::BytecodeGenerator::generate<JSC::FunctionNode,JSC::UnlinkedFunctionCodeBlock>
• ParserError.h:38: JSC::ParserError::operator=
• JSCellInlines.h:137: JSC::JSCell::type
• ScriptExecutable.cpp:400: JSC::ScriptExecutable::prepareForExecutionImpl
• CodeBlock.h:1009: JSC::ScriptExecutable::prepareForExecution

Features: bunfig, dotenv, jsc

_{Sentry Issue: BUN-4TW}

[github-actions]

@lilnasy, the latest version of Bun is v1.2.2, but this crash was reported on Bun v1.2.0.

Are you able to reproduce this crash on the latest version of Bun?

bun upgrade