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conan install armadillo/10.7.0@ --build=armadillo --profile=/home/conan/w/BuildSingleReference/40161/5ec262db-7f26-442f-91c4-43331274f09b/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=7
os=Linux
os_build=Linux
[options]
armadillo:shared=False
[build_requires]
[env]

armadillo/10.7.0: Forced build from source
Installing package: armadillo/10.7.0
Requirements
    armadillo/10.7.0 from local cache - Cache
    hdf5/1.12.0 from 'conan-center' - Cache
    openblas/0.3.15 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    armadillo/10.7.0:23631fbd0f43559290035097c2e3a057e7a2ec3c - Build
    hdf5/1.12.0:e4686fff3988fa76ba443a82e82b6f76b84ed1c8 - Cache
    openblas/0.3.15:8db6c2420a3ae567b3c05f4fbb3fb148c783c566 - Cache
    zlib/1.2.11:db2ca884c9793e0b0fb54ec3f846326d1addacc8 - Cache

Installing (downloading, building) binaries...
openblas/0.3.15: Already installed!
openblas/0.3.15: Setting OpenBLAS_HOME environment variable: /home/conan/w/BuildSingleReference/.conan/data/openblas/0.3.15/_/_/package/8db6c2420a3ae567b3c05f4fbb3fb148c783c566
[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
hdf5/1.12.0: 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
[HOOK - conan-center.py] pre_source(): [IMMUTABLE SOURCES (KB-H010)] OK
armadillo/10.7.0: Configuring sources in /home/conan/w/BuildSingleReference/.conan/data/armadillo/10.7.0/_/_/source
Waiting 5 seconds to retry...
armadillo/10.7.0: WARN: Build folder is dirty, removing it: /home/conan/w/BuildSingleReference/.conan/data/armadillo/10.7.0/_/_/build/23631fbd0f43559290035097c2e3a057e7a2ec3c
armadillo/10.7.0: WARN: Trying to remove corrupted source folder
armadillo/10.7.0: WARN: This can take a while for big packages
ERROR: Error downloading file http://sourceforge.net/projects/arma/files/armadillo-10.7.0.tar.xz: 'HTTPSConnectionPool(host='sourceforge.net', port=443): Max retries exceeded with url: /projects/arma/files/armadillo-10.7.0.tar.xz (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1076)')))'
ERROR: armadillo/10.7.0: Error in source() method, line 234
	name=self.name, version=self.version
	ConanException: Error downloading file http://sourceforge.net/projects/arma/files/armadillo-10.7.0.tar.xz: 'HTTPSConnectionPool(host='sourceforge.net', port=443): Max retries exceeded with url: /projects/arma/files/armadillo-10.7.0.tar.xz (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1076)')))'