error: antergos-keyring: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/antergos-keyring-20170524-1-any.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: antergos-mirrorlist: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/antergos-mirrorlist-20170527-1-any.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: cjs: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/cjs-3.4.1-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] \
error: cinnamon-desktop: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/cinnamon-desktop-3.4.1-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: cinnamon-translations: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/cinnamon-translations-3.4.2-1-any.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: nemo: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/nemo-3.4.2-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: cinnamon-settings-daemon: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/cinnamon-settings-daemon-3.4.1-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: cinnamon: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/cinnamon-3.4.1-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: pamac: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/pamac-4.3.6-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: failed to commit transaction (invalid or corrupted package)
Errors occurred, no packages were upgraded.