Fix Redox CI

We will use xbuild until
rust-lang/rust#63160 is fixed

Author: josephlr

.travis.yml

@@ -102,13 +102,13 @@ matrix:
 
     - rust: nightly
       env: DESCRIPTION="cross-platform build only"
-      # libc on Redox is broken: see https://github.com/rust-lang/libc/pull/1450
       install:
         - rustup target add x86_64-sun-solaris
         - rustup target add x86_64-unknown-cloudabi
         - rustup target add x86_64-unknown-freebsd
         - rustup target add x86_64-fuchsia
         - rustup target add x86_64-unknown-netbsd
+        # https://github.com/rust-lang/rust/issues/63160
         # - rustup target add x86_64-unknown-redox
         - rustup target add x86_64-fortanix-unknown-sgx
         # For no_std targets
@@ -120,7 +120,7 @@ matrix:
         - cargo build --target=x86_64-unknown-freebsd
         - cargo build --target=x86_64-fuchsia
         - cargo build --target=x86_64-unknown-netbsd
-        # - cargo build --target=x86_64-unknown-redox
+        - cargo xbuild --target=x86_64-unknown-redox
         - cargo build --target=x86_64-fortanix-unknown-sgx
         - cargo xbuild --target=x86_64-unknown-uefi
         - cargo xbuild --target=x86_64-unknown-hermit
@@ -132,7 +132,7 @@ matrix:
         - cargo build --target=x86_64-unknown-freebsd
         - cargo build --target=x86_64-fuchsia
         - cargo build --target=x86_64-unknown-netbsd
-        # - cargo build --target=x86_64-unknown-redox
+        - cargo xbuild --target=x86_64-unknown-redox
         - cargo build --target=x86_64-fortanix-unknown-sgx
         - cargo xbuild --target=x86_64-unknown-uefi
         - cargo xbuild --target=x86_64-unknown-hermit

Cargo.toml

@@ -26,7 +26,7 @@ compiler_builtins = { version = "0.1", optional = true }
 core = { version = "1.0", optional = true, package = "rustc-std-workspace-core" }
 
 [target.'cfg(any(unix, target_os = "redox", target_os = "wasi"))'.dependencies]
-libc = { version = "0.2.60", default-features = false }
+libc = { version = "0.2.61", default-features = false }
 
 [target.'cfg(target_os = "wasi")'.dependencies]
 wasi = "0.5"