misc: suppress Failed to adjust OOM score of renderer errors from terminal (#31521)

* misc: suppress Failed to adjust OOM score of renderer errors from terminal

* changelog entry

Author: jennifer-shehane

cli/CHANGELOG.md

@@ -9,6 +9,7 @@ _Released 4/22/2025 (PENDING)_
 
 **Misc:**
 
+- Suppress benign warnings that reference OOM score of renderer. Addresses [#29563](https://github.com/cypress-io/cypress/issues/29563). Addressed in [#31521](https://github.com/cypress-io/cypress/pull/31521).
 - The UI of the reporter and URL were updated to a darker gray background for better color contrast. Addressed in [#31475](https://github.com/cypress-io/cypress/pull/31475).
 - Fixed an issue where the error message output when attempting to install Cypress on an unsupported architecture included an outdated documentation link to Cypress system requirements. Fixes [#31512](https://github.com/cypress-io/cypress/issues/31512).
 

cli/lib/exec/spawn.js

@@ -16,6 +16,11 @@ const readline = require('readline')
 const isXlibOrLibudevRe = /^(?:Xlib|libudev)/
 const isHighSierraWarningRe = /\*\*\* WARNING/
 const isRenderWorkerRe = /\.RenderWorker-/
+// This is a warning that occurs when running in a container on Linux.
+// https://github.com/cypress-io/cypress/issues/29563
+// Example:
+// [437:1212/125803.148706:ERROR:zygote_host_impl_linux.cc(273)] Failed to adjust OOM score of renderer with pid 610: Permission denied (13)
+const isOOMScoreWarningRe = /Failed to adjust OOM score of renderer with pid/
 
 // Chromium (which Electron uses) always makes several attempts to connect to the system dbus.
 // This works fine in most desktop environments, but in a docker container, there is no dbus service
@@ -100,6 +105,7 @@ const GARBAGE_WARNINGS = [
   isXlibOrLibudevRe,
   isHighSierraWarningRe,
   isRenderWorkerRe,
+  isOOMScoreWarningRe,
   isDbusWarning,
   isCertVerifyProcBuiltin,
   isHostVulkanDriverWarning,

cli/test/lib/exec/spawn_spec.js

@@ -99,6 +99,8 @@ describe('lib/exec/spawn', function () {
         [78887:1023/114920.074882:ERROR:debug_utils.cc(14)] Hit debug scenario: 4
 
         [18489:0822/130231.159571:ERROR:gl_display.cc(497)] EGL Driver message (Error) eglQueryDeviceAttribEXT: Bad attribute.
+
+        [437:1212/125803.148706:ERROR:zygote_host_impl_linux.cc(273)] Failed to adjust OOM score of renderer with pid 610: Permission denied (13)
       `
 
       const lines = _
@@ -124,6 +126,10 @@ describe('lib/exec/spawn', function () {
     it('returns true for GLX driver errors', () => {
       expect(spawn.isGarbageLineWarning('glx: failed to create drisw screen')).to.be.true
     })
+
+    it('returns true for OOM score adjustment warnings', () => {
+      expect(spawn.isGarbageLineWarning('[437:1212/125803.148706:ERROR:zygote_host_impl_linux.cc(273)] Failed to adjust OOM score of renderer with pid 610: Permission denied (13)')).to.be.true
+    })
   })
 
   context('.start', function () {