Fix deneb docker builds

[realbigsean]

Description

We can't create multi-arch images in our CI because of the following failure in aarch64. It looks like it has to do with c-kzg

 error: linking with `aarch64-linux-gnu-gcc` failed: exit status: 1
  |
  = note: "aarch64-linux-gnu-gcc" "/tmp/rustcmkF3IZ/symbols.o" "/target/aarch64-unknown-linux-gnu/maxperf/deps/lighthouse-fa0748deceb6a62e.lighthouse.ff594d1a-cgu.0.rcgu.o" "-Wl,--as-needed" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/deps" "-L" "/target/maxperf/deps" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/blst-c4fa61d9db1d5d9c/out" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/ring-d5379684085ce144/out" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/c-kzg-b8cc815cb26fd4aa/out" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/c-kzg-b8cc815cb26fd4aa/out" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/libsqlite3-sys-4efd44bceaf497c6/out" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/libz-sys-d5a2fb5fdb1c5729/out/lib" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/libz-sys-d5a2fb5fdb1c5729/out/lib" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/openssl-sys-6484d52495f21a19/out/openssl-build/install/lib" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/leveldb-sys-8ddb10b39278f84b/out/lib" "-L" "/target/aarch64-unknown-linux-gnu/maxperf/build/mdbx-sys-6ac38cea22df0899/out" "-L" "/rust/lib/rustlib/aarch64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/tmp/rustcmkF3IZ/libmdbx_sys-6a5aadc2e0568eec.rlib" "/tmp/rustcmkF3IZ/liblibz_sys-34383be1728b1fcb.rlib" "/tmp/rustcmkF3IZ/libleveldb_sys-f763a94d051e148b.rlib" "/tmp/rustcmkF3IZ/libopenssl_sys-2542b6117bc085c6.rlib" "/tmp/rustcmkF3IZ/liblibsqlite3_sys-636477213e2e1f4e.rlib" "/tmp/rustcmkF3IZ/libc_kzg-6053850523939b06.rlib" "/tmp/rustcmkF3IZ/libblst-a8acb38f67b60d12.rlib" "/tmp/rustcmkF3IZ/libring-5f9be5d7b4f31a9b.rlib" "/rust/lib/rustlib/aarch64-unknown-linux-gnu/lib/libcompiler_builtins-0222020c3eea44f8.rlib" "-Wl,-Bdynamic" "-lstdc++" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/rust/lib/rustlib/aarch64-unknown-linux-gnu/lib" "-o" "/target/aarch64-unknown-linux-gnu/maxperf/deps/lighthouse-fa0748deceb6a62e" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-Wl,-O1" "-nodefaultlibs"
  = note: /usr/lib/gcc-cross/aarch64-linux-gnu/5/../../../../aarch64-linux-gnu/bin/ld: /tmp/rustcmkF3IZ/libc_kzg-6053850523939b06.rlib(c_kzg_4844.o): Relocations in generic ELF (EM: 62)
          /usr/lib/gcc-cross/aarch64-linux-gnu/5/../../../../aarch64-linux-gnu/bin/ld: /tmp/rustcmkF3IZ/libc_kzg-6053850523939b06.rlib(c_kzg_4844.o): Relocations in generic ELF (EM: 62)
          /tmp/rustcmkF3IZ/libc_kzg-6053850523939b06.rlib: error adding symbols: File in wrong format
          collect2: error: ld returned 1 exit status
          

error: could not compile `lighthouse` due to previous error
make: *** [Makefile:71: build-aarch64-portable] Error 101
Error: Process completed with exit code 2.

[realbigsean]

New issues in our automated builds, trying to see if I can reproduce it. Looks like it has to do with the libclang version

  --- stderr
  Using LIB_PREFIX=ckzg
  Using FIELD_ELEMENTS_PER_BLOB=4096
  thread 'main' panicked at '
  A `libclang` function was called that is not supported by the loaded `libclang` instance.

      called function = `clang_getTranslationUnitTargetInfo`
      loaded `libclang` instance = 3.9.x

  This crate only supports `libclang` 3.5 and later.
  The minimum `libclang` requirement for this particular function can be found here:
  https://docs.rs/clang-sys/latest/clang_sys/clang_getTranslationUnitTargetInfo/index.html

  Instructions for installing `libclang` can be found here:
  https://rust-lang.github.io/rust-bindgen/requirements.html
  ', /cargo/registry/src/index.crates.io-6f17d22bba15001f/clang-sys-1.6.1/src/lib.rs:1735:1
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
make: *** [Makefile:76: build-x86_64-portable] Error 101

[realbigsean]

Ok now, it looks like we're OOMing on aarch64 builds. I tested cross building on an ubuntu server with 8GB of RAM and it similarly OOMed. The default github actions runner has 7GB of RAM. I tested out the cross build on a 16GB server and it worked fine.

[realbigsean]

we can resolve this when this is merged #4115

[jimmygchen]

#4115 has been merged to unstable. This should be unblocked as soon as we merge latest unstable into deneb branch.