build(deps): bump github.com/Crocmagnon/fatcontext from 0.2.2 to 0.3.0 (golangci#4783)

Co-authored-by: Fernandez Ludovic <ldez@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/Antonboom/nilnil v0.1.9
 	github.com/Antonboom/testifylint v1.3.1
 	github.com/BurntSushi/toml v1.4.0
-	github.com/Crocmagnon/fatcontext v0.2.2
+	github.com/Crocmagnon/fatcontext v0.3.0
 	github.com/Djarvur/go-err113 v0.0.0-20210108212216-aea10b59be24
 	github.com/GaijinEntertainment/go-exhaustruct/v3 v3.3.0
 	github.com/OpenPeeDeeP/depguard/v2 v2.2.0

go.sum

@@ -31,3 +31,44 @@ func example() {
 func wrapContext(ctx context.Context) context.Context {
 	return context.WithoutCancel(ctx)
 }
+
+// storing contexts in a struct isn't recommended, but local copies of a non-pointer struct should act like local copies of a context.
+func inStructs(ctx context.Context) {
+	for i := 0; i < 10; i++ {
+		c := struct{ Ctx context.Context }{ctx}
+		c.Ctx = context.WithValue(c.Ctx, "key", i)
+		c.Ctx = context.WithValue(c.Ctx, "other", "val")
+	}
+
+	for i := 0; i < 10; i++ {
+		c := []struct{ Ctx context.Context }{{ctx}}
+		c[0].Ctx = context.WithValue(c[0].Ctx, "key", i)
+		c[0].Ctx = context.WithValue(c[0].Ctx, "other", "val")
+	}
+
+	c := struct{ Ctx context.Context }{ctx}
+	for i := 0; i < 10; i++ {
+		c := c
+		c.Ctx = context.WithValue(c.Ctx, "key", i)
+		c.Ctx = context.WithValue(c.Ctx, "other", "val")
+	}
+
+	pc := &struct{ Ctx context.Context }{ctx}
+	for i := 0; i < 10; i++ {
+		c := pc
+		c.Ctx = context.WithValue(c.Ctx, "key", i) // want "nested context in loop"
+		c.Ctx = context.WithValue(c.Ctx, "other", "val")
+	}
+
+	r := []struct{ Ctx context.Context }{{ctx}}
+	for i := 0; i < 10; i++ {
+		r[0].Ctx = context.WithValue(r[0].Ctx, "key", i) // want "nested context in loop"
+		r[0].Ctx = context.WithValue(r[0].Ctx, "other", "val")
+	}
+
+	rp := []*struct{ Ctx context.Context }{{ctx}}
+	for i := 0; i < 10; i++ {
+		rp[0].Ctx = context.WithValue(rp[0].Ctx, "key", i) // want "nested context in loop"
+		rp[0].Ctx = context.WithValue(rp[0].Ctx, "other", "val")
+	}
+}