Add new/old rustflags to fingerprint log.

ehuss · ehuss · commit 25275b07bb3a · 2020-02-16T09:29:25.000-08:00
diff --git a/src/cargo/core/compiler/fingerprint.rs b/src/cargo/core/compiler/fingerprint.rs
@@ -653,7 +653,11 @@ impl Fingerprint {
             bail!("profile configuration has changed")
         }
         if self.rustflags != old.rustflags {
-            bail!("RUSTFLAGS has changed")
+            bail!(
+                "RUSTFLAGS has changed: {:?} != {:?}",
+                self.rustflags,
+                old.rustflags
+            )
         }
         if self.metadata != old.metadata {
             bail!("metadata changed")

Original file line number	Diff line number	Diff line change
`@@ -653,7 +653,11 @@ impl Fingerprint {`
`653`	`653`	`bail!("profile configuration has changed")`
`654`	`654`	`}`
`655`	`655`	`if self.rustflags != old.rustflags {`
`656`		`- bail!("RUSTFLAGS has changed")`
	`656`	`+ bail!(`
	`657`	`+ "RUSTFLAGS has changed: {:?} != {:?}",`
	`658`	`+ self.rustflags,`
	`659`	`+ old.rustflags`
	`660`	`+ )`
`657`	`661`	`}`
`658`	`662`	`if self.metadata != old.metadata {`
`659`	`663`	`bail!("metadata changed")`