workdir does not persist layered images

Cargo.lock

@@ -984,7 +984,7 @@ dependencies = [
 
 [[package]]
 name = "mastodon-image-uploader-bot"
-version = "1.0.0"
+version = "1.0.1"
 dependencies = [
  "async-std",
  "log",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mastodon-image-uploader-bot"
-version = "1.0.0"
+version = "1.0.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

Dockerfile

@@ -41,7 +41,7 @@ EOF
 # reproducability is important, consider using a digest
 # (e.g., debian@sha256:ac707220fbd7b67fc19b112cee8170b41a9e97f703f588b2cdbbcdcecdd8af57).
 FROM debian:bullseye-slim AS final
-
+WORKDIR /app
 # Create a non-privileged user that the app will run under.
 # See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user
 ARG UID=10001