Try fix install failure #480 (#481)

* Try fix install failure

* Update changelog

* Let fmt happy

Author: Sieluna

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - Return an error if GET request fails (#471)
+- Fix RISC-V install fail (#480)
 
 ### Changed
 

src/toolchain/rust.rs

@@ -373,7 +373,9 @@ impl Installable for RiscVTarget {
                 "rust-src",
                 "--target",
                 "riscv32imc-unknown-none-elf",
+                "--target",
                 "riscv32imac-unknown-none-elf",
+                "--target",
                 "riscv32imafc-unknown-none-elf",
             ])
             .stdout(Stdio::null())