Help setting up rclone.plist on macos Sierra

I have rclone synching with gdrive just fine via .sh execution, but I’d like to automate. cron is being slowly neglected by Apple, so I created the following com.github.ncw.rclone.plist in /Library/LaunchDaemons. Sucker is seen, but does not execute. Here is the plist contents

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.github.ncw.rclone</string>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/rclone</string>
        <string>sync</string>
        <string>/Users/borland502</string>
        <string>gdrive:/salmissra/Users</string>
        <string>-v</string>
        <string>--drive-use-trash</string>
        <string>--exclude-from</string>
        <string>.rclone/exclude.txt</string>
        <string>--log-file</string>
        <string>.rclone/borland502.log</string>
    </array>
    <key>WorkingDirectory</key>
    <string>/Users/borland502</string>
    <key>StartCalendarInterval</key>
    <dict>
        <key>Minute</key>
        <integer>45</integer>
        <key>Hour</key>
        <integer>13</integer>
        <key>Day</key>
        <integer>7</integer>
    </dict>
</dict>
</plist>

Execution ends with this line in console

Dec 27 13:30:11 borg com.apple.xpc.launchd[1] (com.github.ncw.rclone[43708]): Service could not initialize: 16D17a: xpcproxy + 11765 [1475][286733C4-18D9-396D-B01B-A096BE5B1DC1]: 0x2

Any help pointing out my mistake or possible reasons would be appreciated.

That isn’t a wildly helpful log message is it!

Are there any other logs available? Can you execute automate with debug or something like that?