How to deploy as docker image?

[seepine]

deno.json

  "tasks": {
    "build": "deno compile --allow-net -o app main.ts"
  },

dockerfile

FROM denoland/deno:2.0.5 as builder
WORKDIR /workspace
COPY ./ ./
RUN deno task build

FROM alpine:glibc
COPY --from=builder /workspace/app /app
ENTRYPOINT ["/app"]

But got

exec /app: no such file or directory

[seepine]

docker exec -it deno-demo:latest /bin/bash

cd /
./app
Segmentation fault (core dumped)