npm i --dry-run with engine-strict

log

$ npm config set engine-strict true
$ vim package.json 
$ ls
package.json
$ npm i --dry-run
npm WARN test@1.0.0 No description
npm WARN test@1.0.0 No repository field.
$ npm i
npm WARN test@1.0.0 No description
npm WARN test@1.0.0 No repository field.
npm ERR! Linux 3.16.0-4-amd64
npm ERR! argv "/home/philip/.nvm/versions/node/v6.8.1/bin/node" "/home/philip/.nvm/versions/node/v6.8.1/bin/npm" "i"
npm ERR! node v6.8.1
npm ERR! npm  v4.0.1
npm ERR! code ENOTSUP

npm ERR! notsup Unsupported engine for test@1.0.0: wanted: {"node":"^4.0.0"} (current: {"node":"6.8.1","npm":"4.0.1"})
npm ERR! notsup Not compatible with your version of node/npm: test@1.0.0
npm ERR! notsup Not compatible with your version of node/npm: test@1.0.0
npm ERR! notsup Required: {"node":"^4.0.0"}
npm ERR! notsup Actual:   {"npm":"4.0.1","node":"6.8.1"}

npm ERR! Please include the following file with any support request:
npm ERR!     /home/philip/workspace/test/npm-debug.log

npm-debug.log

0 info it worked if it ends with ok
1 verbose cli [ '/home/philip/.nvm/versions/node/v6.8.1/bin/node',
1 verbose cli   '/home/philip/.nvm/versions/node/v6.8.1/bin/npm',
1 verbose cli   'i' ]
2 info using npm@4.0.1
3 info using node@v6.8.1
4 silly loadCurrentTree Starting
5 silly install loadCurrentTree
6 silly install readLocalPackageData
7 silly install normalizeTree
8 silly loadCurrentTree Finishing
9 silly loadIdealTree Starting
10 silly install loadIdealTree
11 silly cloneCurrentTree Starting
12 silly install cloneCurrentTreeToIdealTree
13 silly cloneCurrentTree Finishing
14 silly loadShrinkwrap Starting
15 silly install loadShrinkwrap
16 silly loadShrinkwrap Finishing
17 silly loadAllDepsIntoIdealTree Starting
18 silly install loadAllDepsIntoIdealTree
19 silly loadAllDepsIntoIdealTree Finishing
20 silly loadIdealTree Finishing
21 silly currentTree test@1.0.0
22 silly idealTree test@1.0.0
23 silly generateActionsToTake Starting
24 silly install generateActionsToTake
25 silly generateActionsToTake Finishing
26 silly diffTrees action count 0
27 silly decomposeActions action count 0
28 silly runTopLevelLifecycles Starting
29 silly install runPreinstallTopLevelLifecycles
30 silly rollbackFailedOptional Starting
31 silly rollbackFailedOptional Finishing
32 silly runTopLevelLifecycles Finishing
33 silly install printInstalled
34 warn test@1.0.0 No description
35 verbose If you need help, you may report this error at:
35 verbose     <https://github.com/npm/npm/issues>
36 warn test@1.0.0 No repository field.
37 verbose If you need help, you may report this error at:
37 verbose     <https://github.com/npm/npm/issues>
38 verbose stack Error: Unsupported engine for test@1.0.0: wanted: {"node":"^4.0.0"} (current: {"node":"6.8.1","npm":"4.0.1"})
38 verbose stack     at checkEngine (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/node_modules/npm-install-checks/index.js:13:14)
38 verbose stack     at module.exports.isInstallable (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/lib/install/validate-args.js:38:3)
38 verbose stack     at actions.(anonymous function) (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/lib/install/actions.js:52:14)
38 verbose stack     at execAction (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/lib/install/actions.js:114:7)
38 verbose stack     at exports.doOne (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/lib/install/actions.js:119:3)
38 verbose stack     at Array.<anonymous> (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8)
38 verbose stack     at LOOP (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/node_modules/slide/lib/chain.js:15:14)
38 verbose stack     at chain (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/node_modules/slide/lib/chain.js:20:5)
38 verbose stack     at Object.Installer.runPreinstallTopLevelLifecycles (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/lib/install.js:535:3)
38 verbose stack     at Array.<anonymous> (/home/philip/.nvm/versions/node/v6.8.1/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8)
39 verbose pkgid test@1.0.0
40 verbose cwd /home/philip/workspace/test
41 error Linux 3.16.0-4-amd64
42 error argv "/home/philip/.nvm/versions/node/v6.8.1/bin/node" "/home/philip/.nvm/versions/node/v6.8.1/bin/npm" "i"
43 error node v6.8.1
44 error npm  v4.0.1
45 error code ENOTSUP
46 error notsup Unsupported engine for test@1.0.0: wanted: {"node":"^4.0.0"} (current: {"node":"6.8.1","npm":"4.0.1"})
47 error notsup Not compatible with your version of node/npm: test@1.0.0
48 error notsup Not compatible with your version of node/npm: test@1.0.0
48 error notsup Required: {"node":"^4.0.0"}
48 error notsup Actual:   {"npm":"4.0.1","node":"6.8.1"}
49 verbose exit [ 1, true ]

package.json

{
  "name": "test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "engines": {
    "node": "^4.0.0"
  },
  "author": "",
  "license": "ISC"
}