MarsSeed [1] filed a deletion request for gcc-avr-tinyos [2]: Obsolete, unused old version from 2017 of extra repo's avr-gcc.
TinyOS is EOL since 2012, and there are no TinyOS libraries on AUR anymore. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/gcc-avr-tinyos/
