Given following log snippets, their explanation, and nothing else, explain what failure, if any, occurred during build of this package.

  Snippets are in a format of [X] : [Y], where [X] is a log snippet, and [Y] is the explanation.

  Snippets are delimited with '================'.

  Drawing on information from all snippets, provide a concise explanation of the issue and recommend a solution.

  Explanation of the issue, and recommended solution, should take a handful of sentences.

  Snippets:

  [STEP 8/17: RUN mkdir -p $TMPDIR && mkdir -p "${HOME}" &&     chown -R $USER_ID:0 "${HOME}" &&     chmod -R 755 "${HOME}" COPY requirements.txt requirements.sh upstream_master_sync.py $TMPDIR/
        # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

        # stderr (21 lines)
        # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
        Trying to pull quay.io/rhscl/betka:latest...
        Getting image source signatures
        Copying blob sha256:0d109d54e924e3080fde590af878e48a8869ddc3720c3961c196205e417bc79f
        Copying blob sha256:80b613d8f1ff97f71b4b01e404b0d17d29ee58162c15135f6b9a5478cb1f7bff
        Copying config sha256:8684ecbb395a0a3cf0a167694de1ac3003feabac885dad82890f5c657329ac8a
        Writing manifest to image destination
        Trying to pull quay.io/rhscl/betka:0.11.2...
        Getting image source signatures
        Copying blob sha256:80b613d8f1ff97f71b4b01e404b0d17d29ee58162c15135f6b9a5478cb1f7bff
        Copying blob sha256:0d109d54e924e3080fde590af878e48a8869ddc3720c3961c196205e417bc79f
        Copying config sha256:8684ecbb395a0a3cf0a167694de1ac3003feabac885dad82890f5c657329ac8a
        Writing manifest to image destination
        Failed to set locale, defaulting to C.UTF-8
        Failed to set locale, defaulting to C.UTF-8
        chmod: cannot access 'COPY': No such file or directory
        chmod: cannot access 'requirements.txt': No such file or directory
        chmod: cannot access 'requirements.sh': No such file or directory
        chmod: cannot access 'upstream_master_sync.py': No such file or directory
        Error: building at STEP "RUN mkdir -p $TMPDIR &amp;&amp; mkdir -p "${HOME}" &amp;&amp;     chown -R $USER_ID:0 "${HOME}" &amp;&amp;     chmod -R 755 "${HOME}" COPY requirements.txt requirements.sh upstream_master_sync.py $TMPDIR/": while running runtime: exit status 1
      ]: [Check the Dockerfile syntax. There is redundant '\' which caused that Dockerfile two directives are joined]

Issue: It failed because two Dockerfile directive have joined which causes the problem during the build
Resolution: Please check Dockerfile syntax and remove redundand '\'.