一个好的问题会收获一个好的答案，提问前请参考提问模板提问：
标题需要包含基本的信息，请以[问题分类][板卡类型][问题简述]的形式填写标题。当一个问题符合多个标签时，也可以提供多个标签。标题举例：[图像算法][RDK X5][xx案例运行现象不符合预期]
sunrise@ubuntu:~$ pip install bpu_infer_lib_x5 -i http://sdk.d-robotics.cc:8080/simple/ --trusted-host sdk.d-robotics.cc
Defaulting to user installation because normal site-packages is not writeable
Looking in indexes: http://sdk.d-robotics.cc:8080/simple/
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by ‘NewConnectionError(’<pip._vendor.urllib3.connection.HTTPConnection object at 0xffffab497040>: Failed to establish a new connection: [Errno 111] Connection refused’)‘: /simple/bpu-infer-lib-x5/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by ‘NewConnectionError(’<pip._vendor.urllib3.connection.HTTPConnection object at 0xffffab497e20>: Failed to establish a new connection: [Errno 111] Connection refused’)‘: /simple/bpu-infer-lib-x5/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by ‘NewConnectionError(’<pip._vendor.urllib3.connection.HTTPConnection object at 0xffffab497fd0>: Failed to establish a new connection: [Errno 111] Connection refused’)‘: /simple/bpu-infer-lib-x5/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by ‘NewConnectionError(’<pip._vendor.urllib3.connection.HTTPConnection object at 0xffffab4b8280>: Failed to establish a new connection: [Errno 111] Connection refused’)‘: /simple/bpu-infer-lib-x5/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by ‘NewConnectionError(’<pip._vendor.urllib3.connection.HTTPConnection object at 0xffffab4b8490>: Failed to establish a new connection: [Errno 111] Connection refused’)': /simple/bpu-infer-lib-x5/
ERROR: Could not find a version that satisfies the requirement bpu_infer_lib_x5 (from versions: none)
ERROR: No matching distribution found for bpu_infer_lib_x5
sunrise@ubuntu:~$
出现上述问题，帮忙确认bpu_infer_lib_x5还能使用吗？