incorrect path of <command_name>.bin of vbucketkeygen, memslap and vbuckettool in tools folder in non-root installation

Download couchbase server 2.0.1-170
Login as non-root user (test)
Follow instruction in https://github.com/couchbase/voltron/blob/2.0.1/README-non-root.md to install couchbase server
Start couchbase server
Open web browser to do initial setup.
Go to opt/couchbase/bin/tools
Run vbucketkeygen ==> Failed
Got error
[test@ip-10-33-3-109 tools]$ ./vbucketkeygen
./vbucketkeygen: line 6: /home/test/opt/couchbase/bin/vbucketkeygen.bin: No such file or directory
./vbucketkeygen: line 6: exec: /home/test/opt/couchbase/bin/vbucketkeygen.bin: cannot execute: No such file or directory

Those <command_name>.bin in tools folder
[test@ip-10-33-3-109 tools]$ pwd
/home/test/opt/couchbase/bin/tools
[test@ip-10-33-3-109 tools]$ ls
cbanalyze-core cbdocloader cbworkloadgen memslap memslap.bin unsupported vbucketkeygen vbucketkeygen.bin vbuckettool vbuckettool.bin

[test@ip-10-33-3-109 tools]$ ./memslap
./memslap: line 6: /home/test/opt/couchbase/bin/memslap.bin: No such file or directory
./memslap: line 6: exec: /home/test/opt/couchbase/bin/memslap.bin: cannot execute: No such file or directory

[test@ip-10-33-3-109 tools]$ ./vbuckettool
./vbuckettool: line 6: /home/test/opt/couchbase/bin/vbuckettool.bin: No such file or directory
./vbuckettool: line 6: exec: /home/test/opt/couchbase/bin/vbuckettool.bin: cannot execute: No such file or directory