Wheel build failing for x86_64 and i686 on linux

[samuelcolvin]

Bug Description

Builds of pydantic-core have just started failing, see this build,

For x86_64, the log has the following:

📦 Including license file "LICENSE"
🍹 Building a mixed python/rust project
💥 maturin failed
  Caused by: Cargo metadata failed. Does your crate compile with `cargo build`?
  Caused by: `cargo metadata` exited with an error: /root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by /root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo)
/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo: /lib64/libc.so.6: version `GLIBC_2.15' not found (required by /root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo)
/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo: /lib64/libc.so.6: version `GLIBC_2.17' not found (required by /root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo)

For i686 I see:

📦 Including license file "LICENSE"
🍹 Building a mixed python/rust project
💥 maturin failed
  Caused by: Cargo metadata failed. Does your crate compile with `cargo build`?
  Caused by: `cargo metadata` exited with an error: /root/.rustup/toolchains/nightly-i686-unknown-linux-gnu/bin/cargo: /lib/libc.so.6: version `GLIBC_2.15' not found (required by /root/.rustup/toolchains/nightly-i686-unknown-linux-gnu/bin/cargo)
/root/.rustup/toolchains/nightly-i686-unknown-linux-gnu/bin/cargo: /lib/libc.so.6: version `GLIBC_2.17' not found (required by /root/.rustup/toolchains/nightly-i686-unknown-linux-gnu/bin/cargo)
Error: The process '/usr/bin/docker' failed with exit code 1

Your Python version (python -V)

the job installs 3.10.6

Your pip version (pip -V)

NA

What bindings you're using

pyo3

Does cargo build work?

• Yes, it works

If on windows, have you checked that you aren't accidentally using unix path (those with the forward slash /)?

• Yes

Steps to Reproduce

See the build log.

[messense]

See my comment here: pydantic/pydantic-core@ae3b707#commitcomment-80926390

This is related to #857.

[samuelcolvin]

Thanks, sorry for the noise.

[messense]

BTW, switch to build on stable Rust can also resolve that issue. I plan to adjust maturin-action to account for this breaking change in nightly Rust for the auto option.

[samuelcolvin]

Okay, I think rust stable is a better idea, I'll try to submit a PR.

Currently the pydantic organisation has a backlog of builds, so I'm waiting for that to resolve itself 😓.