pin packaging==21.3 #7179

Job	Run time
macOS-12 - setuptools (CC=gcc-9 CXX=g++-9)	11m 3s
macOS-12 - cmake (CC=gcc-8 CXX=g++-8)	13m 12s
macOS-12 - cmake (CC=gcc-9 CXX=g++-9)	15m 28s
macOS-12 - cmake (-DNRN_ENABLE_CORENEURON=ONCC=gcc-7 CXX=g++-7)	13m 47s
macOS-12 - cmake (-DNRN_ENABLE_MPI=OFF -DNRN_ENABLE_INTERVIEWS=OFF -DNRN_ENABLE_CORENEURON=ONCC=gcc-7 CXX=g++-7)	8m 41s
macOS-12 - cmake (-DNRN_ENABLE_PYTHON=OFF -DNRN_ENABLE_RX3D=OFF -DNRN_ENABLE_CORENEURON=ONCC=gcc-10 CXX=g++-10)	5m 53s
ubuntu-20.04 - setuptools (CC=gcc-9 CXX=g++-9)	4m 6s
ubuntu-20.04 - cmake (CC=gcc-8 CXX=g++-8)	6m 5s
ubuntu-20.04 - cmake (CC=gcc-9 CXX=g++-9)	6m 24s
ubuntu-20.04 - cmake (-DNRN_ENABLE_CORENEURON=ONCC=gcc-7 CXX=g++-7)	4m 43s
ubuntu-20.04 - cmake (-DNRN_ENABLE_MPI=OFF -DNRN_ENABLE_INTERVIEWS=OFF -DNRN_ENABLE_CORENEURON=ONCC=gcc-7 CXX=g++-7)	2m 54s
ubuntu-20.04 - cmake (-DNRN_ENABLE_PYTHON=OFF -DNRN_ENABLE_RX3D=OFF -DNRN_ENABLE_CORENEURON=ONCC=gcc-10 CXX=g++-10)	2m 48s
ubuntu-22.04 - cmake (-DNRN_ENABLE_CORENEURON=ON -DNRN_ENABLE_INTERVIEWS=OFF -DCORENRN_SANITIZERS=undefined)	5m 45s
ubuntu-22.04 - cmake (-DNRN_ENABLE_CORENEURON=ON -DNRN_ENABLE_INTERVIEWS=OFF -DCORENRN_SANITIZERS=address)	13m 57s
Final CI	1s
	1h 54m 47s

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