diff --git a/dist/build-crates-debian-main.js b/dist/build-crates-debian-main.js
index ec063e3..61f216b 100644
--- a/dist/build-crates-debian-main.js
+++ b/dist/build-crates-debian-main.js
@@ -127543,7 +127543,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = sh(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/dist/build-crates-standalone-main.js b/dist/build-crates-standalone-main.js
index db4a55a..3678b63 100644
--- a/dist/build-crates-standalone-main.js
+++ b/dist/build-crates-standalone-main.js
@@ -127527,7 +127527,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = sh(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/dist/bump-crates-main.js b/dist/bump-crates-main.js
index 858b629..37da269 100644
--- a/dist/bump-crates-main.js
+++ b/dist/bump-crates-main.js
@@ -81249,7 +81249,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = sh(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/dist/publish-crates-cargo-main.js b/dist/publish-crates-cargo-main.js
index c709a14..1163df1 100644
--- a/dist/publish-crates-cargo-main.js
+++ b/dist/publish-crates-cargo-main.js
@@ -81137,7 +81137,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = (0,_command__WEBPACK_IMPORTED_MODULE_5__.sh)(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = (0,_command__WEBPACK_IMPORTED_MODULE_5__.sh)(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/dist/publish-crates-debian-main.js b/dist/publish-crates-debian-main.js
index db7752e..bd80651 100644
--- a/dist/publish-crates-debian-main.js
+++ b/dist/publish-crates-debian-main.js
@@ -127522,7 +127522,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = sh(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/dist/publish-crates-eclipse-main.js b/dist/publish-crates-eclipse-main.js
index a8c73fa..e134262 100644
--- a/dist/publish-crates-eclipse-main.js
+++ b/dist/publish-crates-eclipse-main.js
@@ -127603,7 +127603,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = sh(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/dist/publish-crates-github-main.js b/dist/publish-crates-github-main.js
index 853304d..24b3999 100644
--- a/dist/publish-crates-github-main.js
+++ b/dist/publish-crates-github-main.js
@@ -127603,7 +127603,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = sh(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/dist/publish-crates-homebrew-main.js b/dist/publish-crates-homebrew-main.js
index 84ae502..ab5e5a1 100644
--- a/dist/publish-crates-homebrew-main.js
+++ b/dist/publish-crates-homebrew-main.js
@@ -127507,7 +127507,11 @@ function toDebianVersion(version, revision) {
  */
 function isPublished(pkg) {
     // Hackish but crates.io doesn't have a stable api anyway.
-    const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+    const results = sh(`cargo search ${pkg.name}`);
+    if (!results) {
+        return false;
+    }
+    const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
     return publishedVersion === pkg.version;
 }
 
diff --git a/src/cargo.ts b/src/cargo.ts
index ed1a669..fc6f01d 100644
--- a/src/cargo.ts
+++ b/src/cargo.ts
@@ -374,6 +374,10 @@ export function toDebianVersion(version: string, revision?: number): string {
  */
 export function isPublished(pkg: Package): boolean {
   // Hackish but crates.io doesn't have a stable api anyway.
-  const publishedVersion = sh(`cargo search ${pkg.name}`).split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
+  const results = sh(`cargo search ${pkg.name}`);
+  if (!results) {
+    return false;
+  }
+  const publishedVersion = results.split("\n").at(0).match(/".*"/g).at(0).slice(1, -1);
   return publishedVersion === pkg.version;
 }