Hello synapse devs! I'm currently trying to figure out how to build synapse for arm32v7. I noticed that this architecture was removed from docker support after version 1.26. Does anyone have any pointers for how I might achieve this? I'm running into this error:

#13 502.8   running build_rust
#13 502.8       Updating crates.io index
#13 502.8   warning: spurious network error (2 tries remaining): could not read directory '/root/.cargo/registry/index/github.com-1ecc6299db9ec823/.git//refs': Value too large for defined data type; class=Os (2)
#13 502.8   warning: spurious network error (1 tries remaining): could not read directory '/root/.cargo/registry/index/github.com-1ecc6299db9ec823/.git//refs': Value too large for defined data type; class=Os (2)
#13 502.8   error: failed to fetch https://github.com/rust-lang/crates.io-index
#13 502.8   
#13 502.8   Caused by:
#13 502.8     could not read directory '/root/.cargo/registry/index/github.com-1ecc6299db9ec823/.git//refs': Value too large for defined data type; class=Os (2)
#13 502.8   
#13 502.8       =============================DEBUG ASSISTANCE=============================
#13 502.8       If you are seeing a compilation error please try the following steps to
#13 502.8       successfully install cryptography:
#13 502.8       1) Upgrade to the latest pip and try again. This will fix errors for most
#13 502.8          users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip
#13 502.8       2) Read https://cryptography.io/en/latest/installation.html for specific
#13 502.8          instructions for your platform.
#13 502.8       3) Check our frequently asked questions for more information:
#13 502.8          https://cryptography.io/en/latest/faq.html
#13 502.8       4) Ensure you have a recent Rust toolchain installed:
#13 502.8          https://cryptography.io/en/latest/installation.html#rust
#13 502.8       5) If you are experiencing issues with Rust for *this release only* you may
#13 502.8          set the environment variable CRYPTOGRAPHY_DONT_BUILD_RUST=1.
#13 502.8       =============================DEBUG ASSISTANCE=============================

Yes, I believe this was one of the pain points that ultimately forced us to drop support. I wasn't one of the folks that worked through the many 32-bit errors which this might've been a part of (and they're probably away until tomorrow). Regardless, from searching online it looks like that error can be common on 32-bit systems, and can be worked around by setting some build flags: https://github.com/nextcloud/docker/issues/870

pycryptography's error here is a bit of a red herring, and just appears when compilation (which requires some rust compilation) fails. The docker image should have rustc installed. I'm not sure whether git or a rust implementation of git is raising Value too large for defined data type here though.

In reply to @chrisguida:matrix.start9labs.com
I didn't find anything particularly helpful on cryptography's docs

Yes, I believe this was one of the pain points that ultimately forced us to drop support. I wasn't one of the folks that worked through the many 32-bit errors which this might've been a part of (and they're probably away until tomorrow). Regardless, from searching online it looks like that error can be common on 32-bit systems, and can be worked around by setting some build flags: https://github.com/nextcloud/docker/issues/870

pycryptography's error here is a bit of a red herring, and just appears when compilation (which requires some rust compilation) fails. The docker image should have rustc installed. I'm not sure whether git or a rust implementation of git is raising Value too large for defined data type here though.

In reply to @jboi:jboi.nl
but setting "required" on the bk build doesn't work :(

In reply to @andrewm:amorgan.xyz
Oh, sure. But that job won't pass unless all other bk jobs pass.