From 50955d3675c28dbbd5393c52e972f2f8a2074241 Mon Sep 17 00:00:00 2001
From: Andrew Smith <andrewsmith@alumni.stanford.edu>
Date: Wed, 25 Nov 2020 14:58:50 -0800
Subject: [PATCH 1/5] Clarify these warnings are for babel-preset-env.

---
 packages/babel-preset-env/src/normalize-options.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/babel-preset-env/src/normalize-options.js b/packages/babel-preset-env/src/normalize-options.js
index 84ebf85300d0..41524d415443 100644
--- a/packages/babel-preset-env/src/normalize-options.js
+++ b/packages/babel-preset-env/src/normalize-options.js
@@ -160,6 +160,7 @@ export function normalizeCoreJSOption(
   if (useBuiltIns && corejs === undefined) {
     rawVersion = 2;
     console.warn(
+      "\n[babel-preset-env]" +
       "\nWARNING: We noticed you're using the `useBuiltIns` option without declaring a " +
         "core-js version. Currently, we assume version 2.x when no version " +
         "is passed. Since this default version will likely change in future " +
@@ -183,6 +184,7 @@ export function normalizeCoreJSOption(
 
   if (!useBuiltIns && version) {
     console.log(
+      "\n[babel-preset-env]" +
       "\nThe `corejs` option only has an effect when the `useBuiltIns` option is not `false`\n",
     );
   }

From b1e81ac440bb092851aa219c78317b43c4f46235 Mon Sep 17 00:00:00 2001
From: Andrew Smith <andrewsmith@alumni.stanford.edu>
Date: Wed, 25 Nov 2020 15:09:24 -0800
Subject: [PATCH 2/5] Fix lint.

---
 packages/babel-preset-env/src/normalize-options.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/babel-preset-env/src/normalize-options.js b/packages/babel-preset-env/src/normalize-options.js
index 41524d415443..448ec98ebca1 100644
--- a/packages/babel-preset-env/src/normalize-options.js
+++ b/packages/babel-preset-env/src/normalize-options.js
@@ -161,7 +161,7 @@ export function normalizeCoreJSOption(
     rawVersion = 2;
     console.warn(
       "\n[babel-preset-env]" +
-      "\nWARNING: We noticed you're using the `useBuiltIns` option without declaring a " +
+        "\nWARNING: We noticed you're using the `useBuiltIns` option without declaring a " +
         "core-js version. Currently, we assume version 2.x when no version " +
         "is passed. Since this default version will likely change in future " +
         "versions of Babel, we recommend explicitly setting the core-js version " +
@@ -185,7 +185,7 @@ export function normalizeCoreJSOption(
   if (!useBuiltIns && version) {
     console.log(
       "\n[babel-preset-env]" +
-      "\nThe `corejs` option only has an effect when the `useBuiltIns` option is not `false`\n",
+        "\nThe `corejs` option only has an effect when the `useBuiltIns` option is not `false`\n",
     );
   }
 

From 112805518eddfd1b8437e638317c348a931f5d63 Mon Sep 17 00:00:00 2001
From: Andrew Smith <andrewsmith@alumni.stanford.edu>
Date: Wed, 25 Nov 2020 15:30:56 -0800
Subject: [PATCH 3/5] Fix specs.

---
 packages/babel-preset-env/src/normalize-options.js         | 4 +++-
 .../fixtures/debug/corejs-without-usebuiltins/stdout.txt   | 1 +
 .../fixtures/debug/entry-no-corejs-no-import/stderr.txt    | 6 +++++-
 .../debug/entry-no-corejs-shippedProposals/stderr.txt      | 6 +++++-
 .../test/fixtures/debug/entry-no-corejs-uglify/stderr.txt  | 6 +++++-
 .../test/fixtures/debug/entry-no-corejs/stderr.txt         | 6 +++++-
 .../test/fixtures/debug/usage-no-corejs-1/stderr.txt       | 7 +++++++
 .../test/fixtures/debug/usage-no-corejs-2/stderr.txt       | 4 ++++
 .../test/fixtures/debug/usage-no-corejs-none-1/stderr.txt  | 6 +++++-
 .../test/fixtures/debug/usage-no-corejs-none-2/stderr.txt  | 6 +++++-
 10 files changed, 45 insertions(+), 7 deletions(-)

diff --git a/packages/babel-preset-env/src/normalize-options.js b/packages/babel-preset-env/src/normalize-options.js
index 448ec98ebca1..9a247e459293 100644
--- a/packages/babel-preset-env/src/normalize-options.js
+++ b/packages/babel-preset-env/src/normalize-options.js
@@ -171,7 +171,9 @@ export function normalizeCoreJSOption(
         "`dependencies` section. If it doesn't, you need to run one of the " +
         "following commands:\n\n" +
         "  npm install --save core-js@2    npm install --save core-js@3\n" +
-        "  yarn add core-js@2              yarn add core-js@3\n",
+        "  yarn add core-js@2              yarn add core-js@3\n\n" +
+        "More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins\n" +
+        "More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs",
     );
   } else if (typeof corejs === "object" && corejs !== null) {
     rawVersion = corejs.version;
diff --git a/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt b/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt
index 4e9aa05982c7..495c333b3f90 100644
--- a/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt
@@ -1,3 +1,4 @@
+[babel-preset-env]
 The `corejs` option only has an effect when the `useBuiltIns` option is not `false`
 
 @babel/preset-env: `DEBUG` option
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt
index dbee5e8f3eb3..0b4e2b4459eb 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt
@@ -1,6 +1,10 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
-  yarn add core-js@2              yarn add core-js@3
\ No newline at end of file
+  yarn add core-js@2              yarn add core-js@3
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt
index dbee5e8f3eb3..0b4e2b4459eb 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt
@@ -1,6 +1,10 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
-  yarn add core-js@2              yarn add core-js@3
\ No newline at end of file
+  yarn add core-js@2              yarn add core-js@3
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt
index dbee5e8f3eb3..0b4e2b4459eb 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt
@@ -1,6 +1,10 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
-  yarn add core-js@2              yarn add core-js@3
\ No newline at end of file
+  yarn add core-js@2              yarn add core-js@3
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt
index dbee5e8f3eb3..0b4e2b4459eb 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt
@@ -1,6 +1,10 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
-  yarn add core-js@2              yarn add core-js@3
\ No newline at end of file
+  yarn add core-js@2              yarn add core-js@3
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
index d9061acb2c57..29d98d7c6140 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
@@ -1,6 +1,13 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
   yarn add core-js@2              yarn add core-js@3
+<<<<<<< HEAD
+=======
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
+>>>>>>> Fix specs.
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt
index d9061acb2c57..0b4e2b4459eb 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt
@@ -1,6 +1,10 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
   yarn add core-js@2              yarn add core-js@3
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt
index dbee5e8f3eb3..0b4e2b4459eb 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt
@@ -1,6 +1,10 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
-  yarn add core-js@2              yarn add core-js@3
\ No newline at end of file
+  yarn add core-js@2              yarn add core-js@3
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt
index dbee5e8f3eb3..0b4e2b4459eb 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt
@@ -1,6 +1,10 @@
+[babel-preset-env]
 WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
   npm install --save core-js@2    npm install --save core-js@3
-  yarn add core-js@2              yarn add core-js@3
\ No newline at end of file
+  yarn add core-js@2              yarn add core-js@3
+
+More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
+More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
\ No newline at end of file

From c0ac148ac119984e21efb2bb60ba2cdd069e1d8a Mon Sep 17 00:00:00 2001
From: Andrew Smith <andrewsmith@alumni.stanford.edu>
Date: Wed, 25 Nov 2020 15:36:08 -0800
Subject: [PATCH 4/5] Fix merge conflict.

---
 .../test/fixtures/debug/usage-no-corejs-1/stderr.txt           | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
index 29d98d7c6140..ca2edbeae669 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
@@ -5,9 +5,6 @@ You should also be sure that the version you pass to the `corejs` option matches
 
   npm install --save core-js@2    npm install --save core-js@3
   yarn add core-js@2              yarn add core-js@3
-<<<<<<< HEAD
-=======
 
 More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins
 More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs
->>>>>>> Fix specs.

From 8fd93bc8431b54b5529218022a12fee8b1fbae3a Mon Sep 17 00:00:00 2001
From: Andrew Smith <andrewsmith@alumni.stanford.edu>
Date: Mon, 30 Nov 2020 16:21:22 -0800
Subject: [PATCH 5/5] PR feedback.

---
 packages/babel-preset-env/src/normalize-options.js          | 6 ++----
 .../fixtures/debug/corejs-without-usebuiltins/stdout.txt    | 3 +--
 .../fixtures/debug/entry-no-corejs-no-import/stderr.txt     | 3 +--
 .../debug/entry-no-corejs-shippedProposals/stderr.txt       | 3 +--
 .../test/fixtures/debug/entry-no-corejs-uglify/stderr.txt   | 3 +--
 .../test/fixtures/debug/entry-no-corejs/stderr.txt          | 3 +--
 .../test/fixtures/debug/usage-no-corejs-1/stderr.txt        | 3 +--
 .../test/fixtures/debug/usage-no-corejs-2/stderr.txt        | 3 +--
 .../test/fixtures/debug/usage-no-corejs-none-1/stderr.txt   | 3 +--
 .../test/fixtures/debug/usage-no-corejs-none-2/stderr.txt   | 3 +--
 10 files changed, 11 insertions(+), 22 deletions(-)

diff --git a/packages/babel-preset-env/src/normalize-options.js b/packages/babel-preset-env/src/normalize-options.js
index 9a247e459293..0f730afabaea 100644
--- a/packages/babel-preset-env/src/normalize-options.js
+++ b/packages/babel-preset-env/src/normalize-options.js
@@ -160,8 +160,7 @@ export function normalizeCoreJSOption(
   if (useBuiltIns && corejs === undefined) {
     rawVersion = 2;
     console.warn(
-      "\n[babel-preset-env]" +
-        "\nWARNING: We noticed you're using the `useBuiltIns` option without declaring a " +
+      "\nWARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a " +
         "core-js version. Currently, we assume version 2.x when no version " +
         "is passed. Since this default version will likely change in future " +
         "versions of Babel, we recommend explicitly setting the core-js version " +
@@ -186,8 +185,7 @@ export function normalizeCoreJSOption(
 
   if (!useBuiltIns && version) {
     console.log(
-      "\n[babel-preset-env]" +
-        "\nThe `corejs` option only has an effect when the `useBuiltIns` option is not `false`\n",
+      "\nWARNING (@babel/preset-env): The `corejs` option only has an effect when the `useBuiltIns` option is not `false`\n",
     );
   }
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt b/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt
index 495c333b3f90..be9ded09f82e 100644
--- a/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/corejs-without-usebuiltins/stdout.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-The `corejs` option only has an effect when the `useBuiltIns` option is not `false`
+WARNING (@babel/preset-env): The `corejs` option only has an effect when the `useBuiltIns` option is not `false`
 
 @babel/preset-env: `DEBUG` option
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt
index 0b4e2b4459eb..2bcc7b0c305b 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-no-import/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt
index 0b4e2b4459eb..2bcc7b0c305b 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-shippedProposals/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt
index 0b4e2b4459eb..2bcc7b0c305b 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs-uglify/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt
index 0b4e2b4459eb..2bcc7b0c305b 100644
--- a/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/entry-no-corejs/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
index ca2edbeae669..f7b27dd07f70 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-1/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt
index 0b4e2b4459eb..2bcc7b0c305b 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-2/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt
index 0b4e2b4459eb..2bcc7b0c305b 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-1/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands:
 
diff --git a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt
index 0b4e2b4459eb..2bcc7b0c305b 100644
--- a/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt
+++ b/packages/babel-preset-env/test/fixtures/debug/usage-no-corejs-none-2/stderr.txt
@@ -1,5 +1,4 @@
-[babel-preset-env]
-WARNING: We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
+WARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a core-js version. Currently, we assume version 2.x when no version is passed. Since this default version will likely change in future versions of Babel, we recommend explicitly setting the core-js version you are using via the `corejs` option.
 
 You should also be sure that the version you pass to the `corejs` option matches the version specified in your `package.json`'s `dependencies` section. If it doesn't, you need to run one of the following commands: