Tweak error printing

alexcrichton · alexcrichton · commit 5a2a08d93392 · 2019-04-10T10:33:53.000-07:00
* Don't print "Internal" for the error since it's not internal most
  likely
* Don't panic, instead just immediately exit
diff --git a/src/lib.rs b/src/lib.rs
@@ -2399,7 +2399,8 @@ fn spawn(cmd: &mut Command, program: &str) -> Result<(Child, JoinHandle<()>), Er
 }
 
 fn fail(s: &str) -> ! {
-    panic!("\n\nInternal error occurred: {}\n\n", s)
+    eprintln!("\n\nerror occurred: {}\n\n", s);
+    std::process::exit(1);
 }
 
 fn command_add_output_file(cmd: &mut Command, dst: &Path, msvc: bool, is_asm: bool, is_arm: bool) {

Original file line number	Diff line number	Diff line change
`@@ -2399,7 +2399,8 @@ fn spawn(cmd: &mut Command, program: &str) -> Result<(Child, JoinHandle<()>), Er`
`2399`	`2399`	`}`
`2400`	`2400`
`2401`	`2401`	`fn fail(s: &str) -> ! {`
`2402`		`- panic!("\n\nInternal error occurred: {}\n\n", s)`
	`2402`	`+ eprintln!("\n\nerror occurred: {}\n\n", s);`
	`2403`	`+ std::process::exit(1);`
`2403`	`2404`	`}`
`2404`	`2405`
`2405`	`2406`	`fn command_add_output_file(cmd: &mut Command, dst: &Path, msvc: bool, is_asm: bool, is_arm: bool) {`