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conan install proposal/7.0.5@ --build=proposal --profile:host=/Users/jenkins/w/BuildSingleReference/12378/1ce26e8b-6f9f-4450-a7e5-340fd3fba63d/profile_host.txt --profile:build=default
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Configuration (profile_host):
[settings]
arch=armv8
build_type=Release
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=12.0
os=Macos
[options]
proposal:shared=False
[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]

proposal/7.0.5: Forced build from source
Installing package: proposal/7.0.5
Requirements
    boost/1.75.0 from 'conan-center' - Cache
    bzip2/1.0.8 from 'conan-center' - Cache
    cubicinterpolation/0.1.4 from 'conan-center' - Cache
    eigen/3.3.9 from 'conan-center' - Cache
    fmt/7.1.3 from 'conan-center' - Cache
    libbacktrace/cci.20210118 from 'conan-center' - Cache
    libiconv/1.16 from 'conan-center' - Cache
    nlohmann_json/3.9.1 from 'conan-center' - Cache
    proposal/7.0.5 from local cache - Cache
    spdlog/1.8.2 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    boost/1.75.0:79d68a52106bee085bb44c5289919791c4828d14 - Missing
    bzip2/1.0.8:9225c2771fbfd3c1ec5ebf3f393eeff631404182 - Missing
    cubicinterpolation/0.1.4:630296fcdc49b7040668d9f8cef746f32d0c3f8b - Missing
    eigen/3.3.9:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Download
    fmt/7.1.3:c36572cdc38be7dbc966c1f9dd7cc86c518bcb6c - Missing
    libbacktrace/cci.20210118:8fafab5ebfba468fd21a497cfee65cafe294bd9e - Missing
    libiconv/1.16:8fafab5ebfba468fd21a497cfee65cafe294bd9e - Download
    nlohmann_json/3.9.1:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Download
    proposal/7.0.5:3d4e746d08d2d3f12bd55ea2ad4150b1b28918ef - Build
    spdlog/1.8.2:f3868e931223ce36ea24684a131f39093490b740 - Missing
    zlib/1.2.11:8fafab5ebfba468fd21a497cfee65cafe294bd9e - Download

Cross-build from 'Macos:x86_64' to 'Macos:armv8'
Installing (downloading, building) binaries...

ERROR: Missing binary: boost/1.75.0:79d68a52106bee085bb44c5289919791c4828d14
ERROR: Missing binary: bzip2/1.0.8:9225c2771fbfd3c1ec5ebf3f393eeff631404182
ERROR: Missing binary: cubicinterpolation/0.1.4:630296fcdc49b7040668d9f8cef746f32d0c3f8b
ERROR: Missing binary: fmt/7.1.3:c36572cdc38be7dbc966c1f9dd7cc86c518bcb6c
ERROR: Missing binary: libbacktrace/cci.20210118:8fafab5ebfba468fd21a497cfee65cafe294bd9e
ERROR: Missing binary: spdlog/1.8.2:f3868e931223ce36ea24684a131f39093490b740
bzip2/1.0.8: WARN: Can't find a 'bzip2/1.0.8' package for the specified settings, options and dependencies:
- Settings: arch=armv8, build_type=Release, compiler=apple-clang, compiler.version=12.0, os=Macos
- Options: build_executable=True, fPIC=True, shared=False
- Dependencies: 
- Requirements: 
- Package ID: 9225c2771fbfd3c1ec5ebf3f393eeff631404182

ERROR: Missing prebuilt package for 'boost/1.75.0', 'bzip2/1.0.8', 'cubicinterpolation/0.1.4', 'fmt/7.1.3', 'libbacktrace/cci.20210118', 'spdlog/1.8.2'
Try to build from sources with '--build=missing'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'