Logging fails on TinyGo Spin Apps

Problem:
TinyGo Spin apps that use log gets the following runtime error from Wasmtime:

$ spin build --up
Building component go-app with `tinygo build -target=wasi -gc=leaking -no-debug -o main.wasm main.go`
Finished building all Spin components
Logging component stdio to ".spin/logs/"

Serving http://127.0.0.1:3000
Available Routes:
  go-app: http://127.0.0.1:3000 (wildcard)
panic: runtime error: nil pointer dereference
2023-12-15T23:25:33.689230Z ERROR spin_trigger_http: Error processing request: error while executing at wasm backtrace:
    0: 0xeb05 - <unknown>!runtime.runtimePanicAt.llvm.3901647063377195771
    1: 0x33a77 - <unknown>!byn$mgfn-shared$runtime.lookupPanic.llvm.3901647063377195771
    2: 0x574a - <unknown>!runtime.nilPanic.llvm.3901647063377195771
    3: 0xcfe7 - <unknown>!(*sync.Mutex).Lock
    4: 0x32ca5 - <unknown>!spin_http_handle_http_request
    5: 0x33870 - <unknown>!__wasm_export_spin_http_handle_http_request
    6: 0x441b8 - wit-component:adapter:wasi_snapshot_preview1!fermyon:spin/inbound-http#handle-request

Caused by:
    wasm trap: wasm `unreachable` instruction executed    

Example app:

package main

import (
	"fmt"
	"log"
	"net/http"

	spinhttp "github.com/fermyon/spin/sdk/go/v2/http"
)

func init() {
	spinhttp.Handle(func(w http.ResponseWriter, r *http.Request) {
		log.Printf("THIS WILL CAUSE AN ERROR")

		fmt.Fprintln(w, "== THIS WILL NOT BE REACHED ==")
	})
}

func main() {}

• Spin version (spin --version)
  spin 2.0.1 (1d72f1c 2023-11-10)

Start by reproducing the example app with spin build --up and the pinned Spin version, then trace the log.Printf path through TinyGo, WASI, and Wasmtime. Done means the request completes without the nil pointer dereference, the log is emitted successfully, and the response reaches the client.