docker image build on WSL2 stops on error

I am using the latest pull from the repo as of today. I am trying to build the docker image using ubuntu under wsl2.

The build in README says to use this build syntax.

```
docker build \
--network host \
--build-arg=EMSCRIPTEN_VERSION=1.39.17 \
-t emscripten/emsdk:1.39.17 \
-f docker/Dockerfile \
.
```

This results in the error below
```
[+] Building 1.9s (9/15)
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 38B 0.0s
=> [internal] load .dockerignore 0.1s
=> => transferring context: 35B 0.0s
=> [internal] load metadata for docker.io/library/ubuntu:jammy 1.6s
=> [auth] library/ubuntu:pull token for registry-1.docker.io 0.0s
=> [internal] load build context 0.1s
=> => transferring context: 444B 0.1s
=> CACHED [stage_build 1/6] FROM docker.io/library/ubuntu:jammy@sha256:0bced47fffa3361afa981854fcabcd4577cd43cebbb808cea2b1f33a3dd7f508 0.0s
=> CACHED [stage_build 2/6] RUN echo "## Start building" && echo "## Update and install packages" && apt-get -qq -y update && apt-get -qq install -y - 0.0s
=> CACHED [stage_build 3/6] COPY . /emsdk 0.0s
=> ERROR [stage_build 4/6] RUN echo "## Install Emscripten" && cd /emsdk && ./emsdk install 1.39.17 && echo "## Done" 0.1s
------
> [stage_build 4/6] RUN echo "## Install Emscripten" && cd /emsdk && ./emsdk install 1.39.17 && echo "## Done":
#9 0.109 ## Install Emscripten
#9 0.109 /bin/sh: 1: ./emsdk: not found
------
executor failed running [/bin/sh -c echo "## Install Emscripten" && cd ${EMSDK} && ./emsdk install ${EMSCRIPTEN_VERSION} && echo "## Done"]: exit code: 127
```

Putting an ls -al inline with ./emsdk, the folder structure looks like this

```
[+] Building 1.0s (8/14)
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 5.21kB 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 35B 0.0s
=> [internal] load metadata for docker.io/library/ubuntu:jammy 0.7s
=> [internal] load build context 0.1s
=> => transferring context: 444B 0.1s
=> CACHED [stage_build 1/6] FROM docker.io/library/ubuntu:jammy@sha256:0bced47fffa3361afa981854fcabcd4577cd43cebbb808cea2b1f33a3dd7f508 0.0s
=> CACHED [stage_build 2/6] RUN echo "## Start building" && echo "## Update and install packages" && apt-get -qq -y update && apt-get -qq install -y - 0.0s
=> CACHED [stage_build 3/6] COPY . /emsdk 0.0s
=> ERROR [stage_build 4/6] RUN echo "## Install Emscripten" && cd /emsdk && ls -al && ./emsdk install 1.39.17 && echo "## Done" 0.1s
------
> [stage_build 4/6] RUN echo "## Install Emscripten" && cd /emsdk && ls -al && ./emsdk install 1.39.17 && echo "## Done":
#8 0.086 ## Install Emscripten
#8 0.087 total 196
#8 0.087 drwxr-xr-x 3 root root 4096 Jul 12 20:01 .
#8 0.087 drwxr-xr-x 1 root root 4096 Jul 12 20:36 ..
#8 0.087 -rwxrwxrwx 1 root root 1353 Jul 12 14:41 LICENSE
#8 0.087 drwxrwxrwx 2 root root 4096 Jul 12 20:01 docker
#8 0.087 -rwxrwxrwx 1 root root 11052 Jul 12 14:41 emscripten-releases-tags.json
#8 0.087 -rwxrwxrwx 1 root root 1688 Jul 12 14:41 emsdk
#8 0.087 -rwxrwxrwx 1 root root 119901 Jul 12 14:41 emsdk.py
#8 0.087 -rwxrwxrwx 1 root root 2050 Jul 12 14:41 emsdk_env.sh
#8 0.087 -rwxrwxrwx 1 root root 25862 Jul 12 14:41 emsdk_manifest.json
#8 0.087 -rwxrwxrwx 1 root root 744 Jul 12 14:41 legacy-binaryen-tags.txt
#8 0.087 -rwxrwxrwx 1 root root 1348 Jul 12 14:41 legacy-emscripten-tags.txt
#8 0.087 -rwxrwxrwx 1 root root 2455 Jul 12 14:41 llvm-tags-64bit.txt
#8 0.087 /bin/sh: 1: ./emsdk: not found
------
executor failed running [/bin/sh -c echo "## Install Emscripten" && cd ${EMSDK} && ls -al && ./emsdk install ${EMSCRIPTEN_VERSION} && echo "## Done"]: exit code: 127
```

emsdk is present and has a +x on it.

Doing a fresh git clone results in the same issue. Not sure if this is a wsl2 issue or dockerfile issue.