RUSTSEC-2021-0139: ansi_term is Unmaintained

ansi_term is Unmaintained

The maintainer has adviced this crate is deprecated and will not
receive any maintenance.

The crate does not seem to have much dependencies and may or may not be ok to use as-is.

Last release seems to have been three years ago.

Possible Alternative(s)

The below list has not been vetted in any way and may or may not contain alternatives;

• anstyle
• nu-ansi-term
• yansi

See advisory page for additional details.

从此 issue 中的 RUSTSEC-2021-0139 advisory 和 ansi_term 0.12.1 package 详细信息开始。比较列出的替代方案—anstyle、nu-ansi-term 和 yansi—并确定哪个替代方案能够保留 operator 的需求；完成的标准是 ansi_term 不再被使用且项目仍能正常运行。