使用Django 2.0构buildDocker镜像失败

我目前正在用最新版本的Django构build一个docker镜像，但是在构build过程中，我得到了这个：

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-9LueOB/Django/ You are using pip version 8.1.2, however version 9.0.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command. The command '/bin/sh -c INSTALL_PKGS="python-pip oracle-instantclient-tnsnames.ora afs_tools_standalone nss_wrapper openssh-clients cx_Oracle libmemcached-devel python-ldap mod_wsgi httpd MySQL-python wassh-ssm-cern wassh" && INSTALL_PKGS_BUILD="gcc python-devel zlib-devel" && yum install -y centos-release-scl && yum update -y && yum install -y --setopt=tsflags=nodocs --enablerepo=centosplus $INSTALL_PKGS && yum install -y $INSTALL_PKGS_BUILD && rpm -e --nodeps centos-logos && pip install --upgrade && pip install -r requirements.txt && rm requirements.txt && yum remove -y $INSTALL_PKGS_BUILD && yum clean all -y && rm -rf /var/cache/yum && mkdir /var/django/ && mkdir -p /var/django/home/ && mkdir -p /usr/local/bin/ && mkdir -p /run/httpd/ && chown -R root:root /run/httpd && chmod a+rw /run/httpd' returned a non-zero code: 1 

在我的requirements.txt我使用这个：

 Django==2.0 djangorestframework==3.2.1 pyapi-gitlab==7.8.4 pylibmc==1.5.0 django-logtail python-gitlab 

任何想法为什么发生这种情况？