Test more fixes to Rust + Musl toolchains

Author: giordano

Manifest.toml

@@ -28,8 +28,8 @@ uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
 
 [[BinaryBuilderBase]]
 deps = ["CodecZlib", "Downloads", "InteractiveUtils", "JSON", "LibGit2", "Libdl", "Logging", "OutputCollectors", "Pkg", "Random", "SHA", "Scratch", "SimpleBufferStream", "TOML", "Tar", "UUIDs", "p7zip_jll", "pigz_jll"]
-git-tree-sha1 = "954e1e40532f23b3666893b42cfbde3ec25ddc68"
-repo-rev = "mg/linker-cargo-config"
+git-tree-sha1 = "a81db2135b389a5967e6dd1c732b1f80a7ca85c9"
+repo-rev = "mg/symlink-musl-libc"
 repo-url = "https://github.com/giordano/BinaryBuilderBase.jl.git"
 uuid = "7f725544-6523-48cd-82d1-3fa08ff4056e"
 version = "1.1.1"