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conan install tmx/1.4.0@ --build=tmx --profile=/Users/jenkins/w/BuildSingleReference@2/71665/a6efe7bd-faa4-47d3-a5f5-86be4a20f8e7/profile.txt
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Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=11.0
os=Macos
[options]
tmx:shared=False
[build_requires]
[env]

tmx/1.4.0: Forced build from source
Installing package: tmx/1.4.0
Requirements
    libiconv/1.16 from 'conan-center' - Cache
    libxml2/2.9.12 from 'conan-center' - Cache
    tmx/1.4.0 from local cache - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    libiconv/1.16:f74366f76f700cc6e991285892ad7a23c30e6d47 - Cache
    libxml2/2.9.12:692855b4b8efd5081f01502de67b8172fb5d86b4 - Cache
    tmx/1.4.0:e7635929e231ff1a2aa3334cc9706afb27031ebd - Build
    zlib/1.2.11:f74366f76f700cc6e991285892ad7a23c30e6d47 - Cache

Installing (downloading, building) binaries...
libiconv/1.16: Already installed!
libiconv/1.16: Appending PATH environment var: /Users/jenkins/w/BuildSingleReference@2/.conan/data/libiconv/1.16/_/_/package/f74366f76f700cc6e991285892ad7a23c30e6d47/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
libxml2/2.9.12: Already installed!
libxml2/2.9.12: Appending PATH environment variable: /Users/jenkins/w/BuildSingleReference@2/.conan/data/libxml2/2.9.12/_/_/package/692855b4b8efd5081f01502de67b8172fb5d86b4/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
[HOOK - conan-center.py] pre_source(): [IMMUTABLE SOURCES (KB-H010)] OK
tmx/1.4.0: Configuring sources in /Users/jenkins/w/BuildSingleReference@2/.conan/data/tmx/1.4.0/_/_/source
Waiting 5 seconds to retry...
tmx/1.4.0: WARN: Build folder is dirty, removing it: /Users/jenkins/w/BuildSingleReference@2/.conan/data/tmx/1.4.0/_/_/build/e7635929e231ff1a2aa3334cc9706afb27031ebd
tmx/1.4.0: WARN: Trying to remove corrupted source folder
tmx/1.4.0: WARN: This can take a while for big packages
ERROR: Error downloading file https://github.com/baylej/tmx/archive/refs/tags/tmx_1.4.0.tar.gz: 'HTTPSConnectionPool(host='codeload.github.com', port=443): Max retries exceeded with url: /baylej/tmx/tar.gz/refs/tags/tmx_1.4.0 (Caused by ResponseError('too many 503 error responses'))'
ERROR: tmx/1.4.0: Error in source() method, line 57
	destination=self._source_subfolder, strip_root=True)
	ConanException: Error downloading file https://github.com/baylej/tmx/archive/refs/tags/tmx_1.4.0.tar.gz: 'HTTPSConnectionPool(host='codeload.github.com', port=443): Max retries exceeded with url: /baylej/tmx/tar.gz/refs/tags/tmx_1.4.0 (Caused by ResponseError('too many 503 error responses'))'