> mdbook build
2020-03-30 20:03:03 [INFO] (mdbook::book): Book building has started
2020-03-30 20:03:03 [INFO] (mdbook::book): Running the html backend
2020-03-30 20:03:03 [INFO] (mdbook::book): Running the linkcheck backend
2020-03-30 20:03:03 [INFO] (mdbook::renderer): Invoking the "linkcheck" renderer
error: The server responded with 404 Not Found for "https://www.designed-cybersecurity.com/tutorials/harden-your-gnupg-config/"
┌── how-i-manage-my-pgp-key/index.md:42:3 ───
│
42 │ - <https://www.designed-cybersecurity.com/tutorials/harden-your-gnupg-config/>
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Server responded with 404 Not Found
│
Error: ErrorMessage { msg: "One or more incorrect links" }
2020-03-30 20:03:08 [ERROR] (mdbook::renderer): Renderer exited with non-zero return code.
2020-03-30 20:03:08 [ERROR] (mdbook::utils): Error: Rendering failed
2020-03-30 20:03:08 [ERROR] (mdbook::utils): Caused By: The "linkcheck" renderer failed