fix rust 1.94 ambiguous panic macro warnings

cpu · ctz · commit 009ef667e3bb · 2026-03-20T16:05:18.000Z
``` error: `panic` is ambiguous --> src/./alg_tests.rs:699:26 | 699 | unhandled => panic!("extend der2text for tag 0x{unhandled:x?}"), | ^^^^^ ambiguous name | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #147319 <rust-lang/rust#147319> = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution ```
diff --git a/src/alg_tests.rs b/src/alg_tests.rs
@@ -14,6 +14,7 @@
 
 #![allow(clippy::duplicate_mod)]
 
+use std::panic;
 use std::prelude::v1::*;
 
 use base64::{Engine as _, engine::general_purpose};
diff --git a/src/cert.rs b/src/cert.rs
@@ -395,6 +395,7 @@ mod tests {
     use super::*;
     #[cfg(feature = "alloc")]
     use crate::crl::RevocationReason;
+    use std::panic;
     use std::prelude::v1::*;
 
     #[test]
diff --git a/src/crl/types.rs b/src/crl/types.rs
@@ -925,7 +925,7 @@ mod tests {
 
     use pki_types::CertificateDer;
     use std::prelude::v1::*;
-    use std::println;
+    use std::{panic, println};
 
     use super::*;
     use crate::cert::Cert;
