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conan install boost/1.71.0@ --profile=/home/conan/w/BuildSingleReference/6804/65cdf5d2-1bce-4a88-a7a0-3c48ccb490d2/profile.txt --build=boost
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=clang
compiler.libcxx=libstdc++
compiler.version=6.0
os=Linux
os_build=Linux
[options]
boost:shared=True
[build_requires]
[env]

boost/1.71.0: Forced build from source
Installing package: boost/1.71.0
Requirements
    boost/1.71.0 from local cache - Cache
    bzip2/1.0.8 from 'conan-center' - Cache
    libiconv/1.16 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    boost/1.71.0:788e1bef98b28b2c92546be7c612ab2ecc93cf8f - Build
    bzip2/1.0.8:32a3ebaea46cf4225c2c64a37eec9853655b8066 - Cache
    libiconv/1.16:69992a588026a3e14cd49c40ed17369c46d8d3a5 - Cache
    zlib/1.2.11:69992a588026a3e14cd49c40ed17369c46d8d3a5 - Cache
Build requirements
    b2/4.2.0 from 'conan-center' - Cache
Build requirements packages
    b2/4.2.0:4db1be536558d833e52e862fd84d64d75c2b3656 - Cache

Installing (downloading, building) binaries...
b2/4.2.0: Already installed!
[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
bzip2/1.0.8: Already installed!
bzip2/1.0.8: Appending PATH environment variable: /home/conan/w/BuildSingleReference/.conan/data/bzip2/1.0.8/_/_/package/32a3ebaea46cf4225c2c64a37eec9853655b8066/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
libiconv/1.16: Already installed!
libiconv/1.16: Appending PATH environment var: /home/conan/w/BuildSingleReference/.conan/data/libiconv/1.16/_/_/package/69992a588026a3e14cd49c40ed17369c46d8d3a5/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
zlib/1.2.11: Already installed!
[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
boost/1.71.0: Applying build-requirement: b2/4.2.0
boost/1.71.0: Building your package in /home/conan/w/BuildSingleReference/.conan/data/boost/1.71.0/_/_/build/788e1bef98b28b2c92546be7c612ab2ecc93cf8f
boost/1.71.0: Generator txt created conanbuildinfo.txt
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK. 'fPIC' option found and apparently well managed
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
boost/1.71.0: Calling build()
boost/1.71.0: 
b2/4.2.0: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/b2/4.2.0/_/_/package/4db1be536558d833e52e862fd84d64d75c2b3656/lib
[HOOK - conan-center.py] post_package_info(): WARN: [LIBRARY DOES NOT EXIST (KB-H054)] Component b2::b2 libdir "lib" does not contain any library
[HOOK - conan-center.py] post_package_info(): WARN: [LIBRARY DOES NOT EXIST (KB-H054)] Component b2::b2 libdir "lib" does not contain any declared library
boost/1.71.0: WARN: Build folder is dirty, removing it: /home/conan/w/BuildSingleReference/.conan/data/boost/1.71.0/_/_/build/788e1bef98b28b2c92546be7c612ab2ecc93cf8f
boost/1.71.0: WARN: Patching user-config.jam
boost/1.71.0: ERROR: Package '788e1bef98b28b2c92546be7c612ab2ecc93cf8f' build failed
boost/1.71.0: WARN: Build folder /home/conan/w/BuildSingleReference/.conan/data/boost/1.71.0/_/_/build/788e1bef98b28b2c92546be7c612ab2ecc93cf8f
ERROR: boost/1.71.0: Error in build() method, line 657
	self._create_user_config_jam(self._boost_build_dir)
while calling '_create_user_config_jam', line 992
	contents += create_library_config("zlib", "zlib")
while calling 'create_library_config', line 979
	lib = self.deps_cpp_info[deps_name].libs[0]
	IndexError: list index out of range