Alvan

### Description add rust example code for your-first-nft ### Test Plan change path to `developer-docs-site/static/examples/rust` run `cargo run --bin first-nft` --- This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/2384)

Error is threw `Object deleted at reference` when the API `sui_getCoins` be called or excute anything with gas in sui client

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Error is threw `Object deleted at reference` when the API `sui_getCoins` ``` { "jsonrpc":"2.0", "method":"sui_getCoins", "params": [ "0xa3b5b159913d8c3b6032b00055232f080ef57f96", "0x2::sui::SUI", null, null ], "id":1 } ``` and the output is ```...