>>> Emerging (4 of 4) dev-db/mariadb-10.5.9::core-server-kit
>>> Downloading 'https://fastpull-us.funtoo.org/distfiles/mariadb-10.5.9.tar.gz'
--2021-07-21 23:44:21--  https://fastpull-us.funtoo.org/distfiles/mariadb-10.5.9.tar.gz
Resolving fastpull-us.funtoo.org... 192.150.253.88
Connecting to fastpull-us.funtoo.org|192.150.253.88|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2021-07-21 23:44:21 ERROR 404: Not Found.

>>> Downloading 'https://downloads.mariadb.org/interstitial/mariadb-10.5.9/source/mariadb-10.5.9.tar.gz'
--2021-07-21 23:44:21--  https://downloads.mariadb.org/interstitial/mariadb-10.5.9/source/mariadb-10.5.9.tar.gz
Resolving downloads.mariadb.org... 2a01:4f8:c2c:b04e::1, 116.203.207.31
Connecting to downloads.mariadb.org|2a01:4f8:c2c:b04e::1|:443... connected.
HTTP request sent, awaiting response... 302 FOUND
Location: https://downloads.mariadb.org/f/mariadb-10.5.9/source/mariadb-10.5.9.tar.gz?serve [following]
--2021-07-21 23:44:22--  https://downloads.mariadb.org/f/mariadb-10.5.9/source/mariadb-10.5.9.tar.gz?serve
Reusing existing connection to [downloads.mariadb.org]:443.
HTTP request sent, awaiting response... 302 FOUND
Location: https://mariadb.mirror.liquidtelecom.com//mariadb-10.5.9/source/mariadb-10.5.9.tar.gz [following]
--2021-07-21 23:44:23--  https://mariadb.mirror.liquidtelecom.com//mariadb-10.5.9/source/mariadb-10.5.9.tar.gz
Resolving mariadb.mirror.liquidtelecom.com... 2c0f:fe40:8001:10::1, 197.155.77.1
Connecting to mariadb.mirror.liquidtelecom.com|2c0f:fe40:8001:10::1|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2021-07-21 23:44:25 ERROR 404: Not Found.

!!! Couldn't download 'mariadb-10.5.9.tar.gz'. Aborting.
 * Fetch failed for 'dev-db/mariadb-10.5.9', Log file:
 *  '/var/tmp/portage/dev-db/mariadb-10.5.9/temp/build.log'

https://archive.mariadb.org/mariadb-10.5.9/source/mariadb-10.5.9.tar.gz