RUSTSEC-2020-0077: memmap is unmaintained

[github-actions]

memmap is unmaintained

Details
Status	unmaintained
Package	memmap
Version	0.7.0
URL	danburkert/memmap-rs#90
Date	2020-12-02

The author of the memmap crate is unresponsive.

Maintained alternatives:

• mapr
• memmap2

See advisory page for additional details.

[brunocodutra]

This library is an indirect dependency of examples only.

[brunocodutra]

memmap v0.7.0
└── smithay-client-toolkit v0.6.6
    └── smithay-clipboard v0.4.0
        └── copypasta v0.6.3
            └── conrod_core v0.74.0
                └── conrod_glium v0.74.0
                    [dev-dependencies]
                    └── reducer v3.0.0 (/home/bruno/Projects/rust/reducer)
                [dev-dependencies]
                └── reducer v3.0.0 (/home/bruno/Projects/rust/reducer)

[brunocodutra]

cargo tree --invert memmap
error: package ID specification `memmap` did not match any packages