Unable to run rust-analyzer on Ubuntu 18.04: version `GLIBC_2.29' not found

[ceronman]

Hello rust-analyzer devs!

As of 2022-02-28 the released binary of rust-analyzer for linux glibc (rust-analyzer-x86_64-unknown-linux-gnu.gz) is requiring a glibc version greater or equal to 2.29. Unfortunately, Ubuntu 18.04 only has up to glibc 2.27 and there is no easy way of updating glibc.

A lot of people are still using 18.04 as it is an LTS version supported until 2023. I'm wondering if it would be possible to keep building rust-analyzer with glibc 2.27 compatibility for a while, unless there is something essential in the newer versions.

Here is an easy way to test this using docker:

$ docker pull ubuntu:18.04
$ docker run -it ubuntu:18.04
root@cd61d9bf6f69:/# apt-get update
root@cd61d9bf6f69:/# apt-get install wget
root@cd61d9bf6f69:/# wget https://github.com/rust-analyzer/rust-analyzer/releases/download/2022-02-28/rust-analyzer-x86_64-unknown-linux-gnu.gz
root@cd61d9bf6f69:/# gunzip rust-analyzer-x86_64-unknown-linux-gnu.gz
root@cd61d9bf6f69:/# chmod + x rust-analyzer-x86_64-unknown-linux-gnu
root@cd61d9bf6f69:/# ./rust-analyzer-x86_64-unknown-linux-gnu --version
./rust-analyzer-x86_64-unknown-linux-gnu: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.29' not found (required by ./rust-analyzer-x86_64-unknown-linux-gnu)
./rust-analyzer-x86_64-unknown-linux-gnu: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by ./rust-analyzer-x86_64-unknown-linux-gnu)

[ceronman]

Sorry duplicate of 11558