New build issue

i tried to build webthings from source following the readme instructions.

when i start i got this issue:

0 info it worked if it ends with ok
1 verbose cli [ ‘/home/pi/.nvm/versions/node/v10.24.1/bin/node’,
1 verbose cli ‘/home/pi/.nvm/versions/node/v10.24.1/bin/npm’,
1 verbose cli ‘run’,
1 verbose cli ‘build’ ]
2 info using npm@6.14.12
3 info using node@v10.24.1
4 verbose run-script [ ‘prebuild’, ‘build’, ‘postbuild’ ]
5 info lifecycle webthings-gateway@1.1.0~prebuild: webthings-gateway@1.1.0
6 info lifecycle webthings-gateway@1.1.0~build: webthings-gateway@1.1.0
7 verbose lifecycle webthings-gateway@1.1.0~build: unsafe-perm in lifecycle true
8 verbose lifecycle webthings-gateway@1.1.0~build: PATH: /home/pi/.nvm/versions/node/v10.24.1/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/home/pi/gateway/node_modules/.bin:/home/pi/.nvm/versions/node/v10.24.1/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/home/pi/gateway/node_modules/.bin:/home/pi/.nvm/versions/node/v10.24.1/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games
9 verbose lifecycle webthings-gateway@1.1.0~build: CWD: /home/pi/gateway
10 silly lifecycle webthings-gateway@1.1.0~build: Args: [ ‘-c’,
10 silly lifecycle ‘rm -rf build && cp -rL src build && find build -name ‘*.ts’ -delete && tsc -p . && webpack’ ]
11 silly lifecycle webthings-gateway@1.1.0~build: Returned: code: 137 signal: null
12 info lifecycle webthings-gateway@1.1.0~build: Failed to exec build script
13 verbose stack Error: webthings-gateway@1.1.0 build: rm -rf build && cp -rL src build && find build -name '*.ts' -delete && tsc -p . && webpack
13 verbose stack Exit status 137
13 verbose stack at EventEmitter. (/home/pi/.nvm/versions/node/v10.24.1/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack at EventEmitter.emit (events.js:198:13)
13 verbose stack at ChildProcess. (/home/pi/.nvm/versions/node/v10.24.1/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:198:13)
13 verbose stack at maybeClose (internal/child_process.js:982:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
14 verbose pkgid webthings-gateway@1.1.0
15 verbose cwd /home/pi/gateway
16 verbose Linux 5.15.32-v7l+
17 verbose argv “/home/pi/.nvm/versions/node/v10.24.1/bin/node” “/home/pi/.nvm/versions/node/v10.24.1/bin/npm” “run” “build”
18 verbose node v10.24.1
19 verbose npm v6.14.12
20 error code ELIFECYCLE
21 error errno 137
22 error webthings-gateway@1.1.0 build: rm -rf build && cp -rL src build && find build -name '*.ts' -delete && tsc -p . && webpack
22 error Exit status 137
23 error Failed at the webthings-gateway@1.1.0 build script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 137, true ]

using rpi4 8gb with raspbianos 32bit full

i open an issue on github : https://github.com/WebThingsIO/gateway/issues/2942