Build failure of network:osmocom:nightly/libosmo-pfcp in Debian_Testing/x86_64

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Package network:osmocom:nightly/libosmo-pfcp failed to build in Debian_Testing/x86_64

Check out the package for editing: osc checkout network:osmocom:nightly libosmo-pfcp

Last lines of build log: /var/cache/obs/worker/root_1/.pkgs/libstdc++6.deb: Input/output error (worker was cloud104:1)