Fixed on staging, commit: 90ea1006a86518e523c510eee1214fd81e71da74.
- bug#30665: ant-build-system: use manifest task Ricardo Wurmus
- bug#30665: [PATCH, STAGING] guix: ant-build-system: ... Gábor Boskovits
- bug#30665: [PATCH, STAGING] guix: ant-build-syst... Marius Bakke
- bug#30665: ant-build-system: use-manifest-task Gábor Boskovits
