Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js

--- stderr --- node:internal/assert/utils:146 throw error; ^ AssertionError [ERR_ASSERTION]: Missing expected exception (TypeError). at Object.<anonymous> (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js:435:10) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: { name: 'TypeError', code: 'ERR_INVALID_ARG_TYPE', message: 'Prefix: Context is backed by a growable SharedArrayBuffer, which is not allowed.' }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node --expose-internals /Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js

Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js

--- stderr --- node:internal/assert/utils:146 throw error; ^ AssertionError [ERR_ASSERTION]: Missing expected exception (TypeError). at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js:435:10) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: { name: 'TypeError', code: 'ERR_INVALID_ARG_TYPE', message: 'Prefix: Context is backed by a growable SharedArrayBuffer, which is not allowed.' }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node --expose-internals /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js

Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js

--- stderr --- node:internal/assert/utils:146 throw error; ^ AssertionError [ERR_ASSERTION]: Missing expected exception (TypeError). at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js:435:10) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: { name: 'TypeError', code: 'ERR_INVALID_ARG_TYPE', message: 'Prefix: Context is backed by a growable SharedArrayBuffer, which is not allowed.' }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node --expose-internals /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js

Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js

--- stderr --- node:internal/assert/utils:146 throw error; ^ AssertionError [ERR_ASSERTION]: Missing expected exception (TypeError). at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js:435:10) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: { name: 'TypeError', code: 'ERR_INVALID_ARG_TYPE', message: 'Prefix: Context is backed by a growable SharedArrayBuffer, which is not allowed.' }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node --expose-internals /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js

Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js

--- stderr --- node:internal/assert/utils:146 throw error; ^ AssertionError [ERR_ASSERTION]: Missing expected exception (TypeError). at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js:435:10) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: { name: 'TypeError', code: 'ERR_INVALID_ARG_TYPE', message: 'Prefix: Context is backed by a growable SharedArrayBuffer, which is not allowed.' }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node --expose-internals /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js

Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js

--- stderr --- node:internal/assert/utils:146 throw error; ^ AssertionError [ERR_ASSERTION]: Missing expected exception (TypeError). at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js:435:10) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: { name: 'TypeError', code: 'ERR_INVALID_ARG_TYPE', message: 'Prefix: Context is backed by a growable SharedArrayBuffer, which is not allowed.' }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node --expose-internals /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js

Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js

--- stderr --- node:internal/assert/utils:146 throw error; ^ AssertionError [ERR_ASSERTION]: Missing expected exception (TypeError). at Object.<anonymous> (/home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js:435:10) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: { name: 'TypeError', code: 'ERR_INVALID_ARG_TYPE', message: 'Prefix: Context is backed by a growable SharedArrayBuffer, which is not allowed.' }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node --expose-internals /home/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl.js

Process completed with exit code 2.

--- stderr --- node:assert:456 throw err; ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal: + actual - expected Comparison { code: 'ERR_INVALID_ARG_TYPE', + message: "Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence." - message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." } at Object.<anonymous> (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) at Object..js (node:internal/modules/cjs/loader:1969:10) at Module.load (node:internal/modules/cjs/loader:1552:32) at Module._load (node:internal/modules/cjs/loader:1354:12) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5) at node:internal/main/run_main_module:33:47 { generatedMessage: true, code: 'ERR_ASSERTION', actual: TypeError: Failed to execute 'structuredClone': transfer in Options cannot be converted to sequence. at codedTypeError (node:internal/webidl:94:15) at makeException (node:internal/webidl:109:10) at node:internal/webidl:648:13 at Object.StructuredSerializeOptions (node:internal/webidl:606:32) at structuredClone (node:internal/worker/js_transferable:118:40) at assert.throws.code (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:21) at getActual (node:assert:580:5) at assert.throws (node:assert:728:24) at Object.<anonymous> (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js:17:8) at Module._compile (node:internal/modules/cjs/loader:1829:14) { code: 'ERR_INVALID_ARG_TYPE' }, expected: { code: 'ERR_INVALID_ARG_TYPE', message: "Failed to execute 'structuredClone': transfer in Options can not be converted to sequence." }, operator: 'throws', diff: 'simple' } Node.js v26.0.0-pre Command: out/Release/node /Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-structuredClone-global.js

--- stdout --- Test failure: 'BufferSource handles growable SAB-backed views with explicit options' Location: test/parallel/test-internal-webidl-buffer-source.js:162:1 AssertionError [ERR_ASSERTION]: Missing expected exception. at TestContext.<anonymous> (/Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js:166:14) at Test.runInAsyncScope (node:async_hooks:226:14) at Test.run (node:internal/test_runner/test:1306:25) at Test.processPendingSubtests (node:internal/test_runner/test:897:18) at Test.postRun (node:internal/test_runner/test:1447:19) at Test.run (node:internal/test_runner/test:1372:12) at async Test.processPendingSubtests (node:internal/test_runner/test:897:7) { generatedMessage: false, code: 'ERR_ASSERTION', actual: undefined, expected: [Object], operator: 'throws', diff: 'simple' } Command: out/Release/node --expose-internals --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /Users/runner/work/_temp/node-v26.0.0-nightly2026-04-26d9a4739b39-slim/test/parallel/test-internal-webidl-buffer-source.js