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conan install libffi/3.2.1@ --build=libffi --profile:host=/Users/jenkins/w/BuildSingleReference@2/14698/c0aabe6a-0988-4571-85ac-eda5e0f8419a/profile_host.txt --profile:build=default
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Configuration (profile_host):
[settings]
arch=armv8
build_type=Debug
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=12.0
os=Macos
[options]
libffi:shared=True
[build_requires]
[env]

Configuration (profile_build):
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=12.0
os=Macos
os_build=Macos
[options]
[build_requires]
[env]

libffi/3.2.1: Forced build from source
Installing package: libffi/3.2.1
Requirements
    libffi/3.2.1 from 'TapaholesList-122' - Cache
Packages
    libffi/3.2.1:022df1ff5bfca1e0cb0d8f05af5da05e31c18e7b - Build
Build requirements
    gnu-config/cci.20201022 from 'conan-center' - Cache
Build requirements packages
    gnu-config/cci.20201022:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache

Cross-build from 'Macos:x86_64' to 'Macos:armv8'
Installing (downloading, building) binaries...
gnu-config/cci.20201022: Already installed!
gnu-config/cci.20201022: Appending PATH environment variable: /Users/jenkins/w/BuildSingleReference@2/.conan/data/gnu-config/cci.20201022/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libffi/3.2.1: Applying build-requirement: gnu-config/cci.20201022
libffi/3.2.1: Copying sources to build folder
libffi/3.2.1: Building your package in /Users/jenkins/w/BuildSingleReference@2/.conan/data/libffi/3.2.1/_/_/build/022df1ff5bfca1e0cb0d8f05af5da05e31c18e7b
libffi/3.2.1: Generator txt created conanbuildinfo.txt
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
libffi/3.2.1: Calling build()
libffi/3.2.1: 
gnu-config/cci.20201022: WARN: Lib folder doesn't exist, can't collect libraries: /Users/jenkins/w/BuildSingleReference@2/.conan/data/gnu-config/cci.20201022/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/lib
libffi/3.2.1: WARN: Build folder is dirty, removing it: /Users/jenkins/w/BuildSingleReference@2/.conan/data/libffi/3.2.1/_/_/build/022df1ff5bfca1e0cb0d8f05af5da05e31c18e7b
libffi/3.2.1: ERROR: Package '022df1ff5bfca1e0cb0d8f05af5da05e31c18e7b' build failed
libffi/3.2.1: WARN: Build folder /Users/jenkins/w/BuildSingleReference@2/.conan/data/libffi/3.2.1/_/_/build/022df1ff5bfca1e0cb0d8f05af5da05e31c18e7b
ERROR: libffi/3.2.1: Error in build() method, line 134
	shutil.copy(self.deps_user_info["gnu-config"].CONFIG_SUB,
	AttributeError: