4/13/2023 Visualizing memory layout of Rust’s data types 4/12/2023 async、await, unsafe 4/11/2023 move code from Rustlings 4.3.1 to correct repo rust-rustlings-h888866j and push it. async await 4/10/2023 complete Rustlings. async await 4/9/2023 89/94 4/8/2023 84? 4/7/2023 72 4/6/2023 no progress 4/5/2023 60 4/4/2023 no progress 4/3/2023 no progress 4/2/2023 up to 39 4/1/2023 first 19 rustings exercise