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conan install xtr/1.0.0@#df1f8dfcf091bb96ed91bd5c0cdce41d --build=xtr -pr /home/conan/w/prod/BuildSingleReference/41469/9f381c41-7df8-49dc-b4b2-d25c00acf30d/profile_linux_10_libstdcpp11_gcc_debug_64..txt
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Auto detecting your dev setup to initialize the default profile (/home/conan/w/prod/BuildSingleReference/.conan/profiles/default)
CC and CXX: /usr/bin/gcc, /usr/bin/g++ 
Found gcc 10
gcc>=5, using the major as version

************************* WARNING: GCC OLD ABI COMPATIBILITY ***********************
 
Conan detected a GCC version > 5 but has adjusted the 'compiler.libcxx' setting to
'libstdc++' for backwards compatibility.
Your compiler is likely using the new CXX11 ABI by default (libstdc++11).

If you want Conan to use the new ABI for the default profile, run:

    $ conan profile update settings.compiler.libcxx=libstdc++11 default

Or edit '/home/conan/w/prod/BuildSingleReference/.conan/profiles/default' and set compiler.libcxx=libstdc++11

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Default settings
	os=Linux
	os_build=Linux
	arch=x86_64
	arch_build=x86_64
	compiler=gcc
	compiler.version=10
	compiler.libcxx=libstdc++
	build_type=Release
*** You can change them in /home/conan/w/prod/BuildSingleReference/.conan/profiles/default ***
*** Or override with -s compiler='other' -s ...s***


Configuration:
[settings]
arch=x86_64
build_type=Debug
compiler=gcc
compiler.libcxx=libstdc++11
compiler.version=10
os=Linux
[options]
[build_requires]
[env]

fmt/7.1.3: Not found in local cache, looking in remotes...
fmt/7.1.3: Trying with 'conan-center'...
Downloading conanmanifest.txt
Downloading conanfile.py
Downloading conan_export.tgz
fmt/7.1.3: Downloaded recipe revision 1ac56aeba28ac0049806e2926b3b5745
xtr/1.0.0: Forced build from source
Installing package: xtr/1.0.0
Requirements
    fmt/7.1.3 from 'conan-center' - Downloaded
    xtr/1.0.0 from local cache - Cache
Packages
    fmt/7.1.3:8fbeded8e81bfcbd1fcdca301b03a876d262e652 - Download
    xtr/1.0.0:2b2ba3f90f1bf48d09621521a27fc0941639f6d6 - Build

Installing (downloading, building) binaries...
fmt/7.1.3: Retrieving package 8fbeded8e81bfcbd1fcdca301b03a876d262e652 from remote 'conan-center' 
Downloading conanmanifest.txt
Downloading conaninfo.txt
Downloading conan_package.tgz
fmt/7.1.3: Package installed 8fbeded8e81bfcbd1fcdca301b03a876d262e652
fmt/7.1.3: Downloaded package revision 294cc6c8743ad6e7ceaed5ea1e0ddeff
[HOOK - conan-center.py] pre_source(): [IMMUTABLE SOURCES (KB-H010)] OK
xtr/1.0.0: Configuring sources in /home/conan/w/prod/BuildSingleReference/.conan/data/xtr/1.0.0/_/_/source

[HOOK - conan-center.py] post_source(): [LIBCXX MANAGEMENT (KB-H011)] OK
[HOOK - conan-center.py] post_source(): [CPPSTD MANAGEMENT (KB-H022)] OK
[HOOK - conan-center.py] post_source(): [SHORT_PATHS USAGE (KB-H066)] OK
xtr/1.0.0: Copying sources to build folder
xtr/1.0.0: Building your package in /home/conan/w/prod/BuildSingleReference/.conan/data/xtr/1.0.0/_/_/build/2b2ba3f90f1bf48d09621521a27fc0941639f6d6
xtr/1.0.0: Generator make created conanbuildinfo.mak
xtr/1.0.0: Aggregating env generators
[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
xtr/1.0.0: Calling build()
xtr/1.0.0: 
xtr/1.0.0: ERROR: Package '2b2ba3f90f1bf48d09621521a27fc0941639f6d6' build failed
xtr/1.0.0: WARN: Build folder /home/conan/w/prod/BuildSingleReference/.conan/data/xtr/1.0.0/_/_/build/2b2ba3f90f1bf48d09621521a27fc0941639f6d6
ERROR: xtr/1.0.0: Error in build() method, line 104
	env_build_vars["CXXFLAGS"] += " -DXTR_SINK_CAPACITY={}".format(int(capacity) * 1024)
	TypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'