Cache Key Not Found 'settings.xml' in DOCKER build

Running Into a problem with my Maven 3.6.3 Docker Build with Java SDK 8 where it cannot find the .m2/settings.xml file correctly.

Here is the outputted error from the current docker build:

failed to compute cache key: "/settings.xml" not found: not found

Could somebody please help me problem solve what the correct thing to do with altering and copying the settings file with the linux command would be like?

# Custom image from Maven on DockerHub
# Language: dockerfile
FROM maven:3.6.3-amazoncorretto-8

# Set the working dir
RUN mkdir -p /app

# Create a non root user
ARG USERNAME=jefferson
ARG USER_UID=1000
ARG USER_GID=$USER_UID

# Add linux dependenciesq
RUN yum install wget -y
RUN yum install shadow-utils -y

ENV MAVEN_CONFIG=/var/maven/.m2

# Create the user
RUN groupadd --gid $USER_GID $USERNAME \
    && useradd --uid $USER_UID --gid $USER_GID -m $USERNAME \
    && yum install sudo -y \
    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
    && chmod 600 /etc/sudoers.d/$USERNAME \
    && sudo groupadd docker \
    && sudo usermod -aG docker $USERNAME \
    && newgrp docker 

# Change to the root folder and edit the settings.xml for Maven
WORKDIR /var/maven/.m2
RUN rm -rf settings.xml \
    && chown $USER_UID:$USER_GID .
RUN echo '<settings xmlns="http://maven.apache.org/SETTINGS/0.0.0" \
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" \
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 \
http://maven.apache.org/xsd/settings-1.0.0.xsd"> \
</settings>' >> settings.xml

RUN find -name "settings.xml"

COPY settings.xml /root/.m2/settings.xml


COPY pom.xml ./pom.xml
COPY src ./ ./
COPY . ./

USER $USERNAME

# Run the application
CMD ["mvn", "clean", "verify", "-Duser.home=/var/maven", "-Pcargo.run", "-X"]