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Rust/Cargo Behind a Corporate Proxy

Problem

Cargo can't fetch external repositories because it is unable to validate the SSL connection due to a “man-in-the-middle” corporate proxy.

Solution

Go to your Rust installation folder. (Usually something like “c:\Users\<username>\.cargo” in Windows.)

Create a file called “config”.

Add the following lines to the file: 

[http]
check-revoke = false
sslVerify = false