aarch64 builds fail with "exec format error"

[nwellnhof]

libxml2 and apparently all other projects using aarch64 currently fail to build with the following error:

"compile-libfuzzer-address-aarch64": exec /usr/bin/bash: exec format error

Example logs:

• libxml2: https://oss-fuzz-build-logs.storage.googleapis.com/log-853ba473-bee0-4208-9f5e-b5a2bc4bbafe.txt
• tinyusb: https://oss-fuzz-build-logs.storage.googleapis.com/log-7e270339-cca0-4c4d-ac0f-e85338586427.txt
• simdutf: https://oss-fuzz-build-logs.storage.googleapis.com/log-04f243ad-3935-44a8-b7ab-aae278f87bf1.txt

[ligurio]

Lua as well: https://oss-fuzz-build-logs.storage.googleapis.com/log-6d6db990-9cf1-4c9d-b2a2-9504a17e0d21.txt

<snipped>
Step #60: Already have image: gcr.io/oss-fuzz/lua
Finished Step #60
Starting Step #61 - "compile-libfuzzer-address-aarch64"
Step #61 - "compile-libfuzzer-address-aarch64": Already have image (with digest): gcr.io/cloud-builders/docker
Step #61 - "compile-libfuzzer-address-aarch64": exec /usr/bin/bash: exec format error
Finished Step #61 - "compile-libfuzzer-address-aarch64"
<snipped>

Seems it is broken since 10 Oct 2024.
Latest successfull log: https://oss-fuzz-build-logs.storage.googleapis.com/log-1c5fce49-0453-41a2-90d8-b21b635457c7.txt

[jonathanmetzman]

aarch64 isn't really supported. We are getting some new teammates, maybe one of them will have a mac and have more incentive to solve this problem.