Update redox_syscall

Cargo.toml

@@ -14,6 +14,5 @@ log = "0.4.8"
 [target.'cfg(target_os = "linux")'.dependencies]
 libc = "0.2.62"
 [target.'cfg(target_os = "redox")'.dependencies]
-# redox_syscall = { git = "https://gitlab.redox-os.org/redox-os/syscall" }
-redox_syscall = { git = "https://gitlab.redox-os.org/jD91mZM2/syscall", branch = "ptrace-fexec" }
+redox_syscall = { git = "https://gitlab.redox-os.org/redox-os/syscall.git" }
 strace = { git = "https://gitlab.redox-os.org/redox-os/strace-redox" }

src/os/redox.rs

@@ -75,7 +75,7 @@ impl Os {
         let mut tracer = self.tracer.borrow_mut();
 
         match tracer.next(flags | Flags::STOP_BREAKPOINT) {
-            Ok(event) => {
+            Ok(_event) => {
                 // Just pretend ptrace SIGSTOP:ped this
                 let status = (SIGSTOP << 8) | 0x7f;
                 assert!(syscall::wifstopped(status));