AWS Lambda Functions - Potential cacheing error v0.20.7

Recently began seeing a new error when building sharp on a Ubuntu build server (AWS CodeBuild).

This bug is nondeterministic, sometimes the build will work and sometimes it won’t, even when no code is changed. It’s possible that the error depends on whether CodeBuild is starting from a Warm or Cold state, but I haven’t been able to track that down.

Exit code: 1
Command: (node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)
Arguments: 
Directory: /codebuild/output/src044279047/src/packages/image-logo-generator/node_modules/sharp
Output:
ERR! sharp EEXIST: file already exists, mkdir '/root/.npm'
ERR! sharp Please see http://sharp.pixelplumbing.com/page/install
gyp info it worked if it ends with ok
gyp info using node-gyp@3.6.2
gyp info using node@8.11.0 | linux | x64
gyp http GET https://nodejs.org/download/release/v8.11.0/node-v8.11.0-headers.tar.gz
gyp http 200 https://nodejs.org/download/release/v8.11.0/node-v8.11.0-headers.tar.gz
gyp http GET https://nodejs.org/download/release/v8.11.0/SHASUMS256.txt
gyp http 200 https://nodejs.org/download/release/v8.11.0/SHASUMS256.txt
gyp info spawn /usr/bin/python2
gyp info spawn args [ '/usr/local/lib/node_modules/npm/node_modules/node-gyp/gyp/gyp_main.py',
gyp info spawn args   'binding.gyp',
gyp info spawn args   '-f',
gyp info spawn args   'make',
gyp info spawn args   '-I',
gyp info spawn args   '/codebuild/output/src044279047/src/packages/image-logo-generator/node_modules/sharp/build/config.gypi',
gyp info spawn args   '-I',
gyp info spawn args   '/usr/local/lib/node_modules/npm/node_modules/node-gyp/addon.gypi',
gyp info spawn args   '-I',
gyp info spawn args   '/root/.node-gyp/8.11.0/include/node/common.gypi',
gyp info spawn args   '-Dlibrary=shared_library',
gyp info spawn args   '-Dvisibility=default',
gyp info spawn args   '-Dnode_root_dir=/root/.node-gyp/8.11.0',
gyp info spawn args   '-Dnode_gyp_dir=/usr/local/lib/node_modules/npm/node_modules/node-gyp',
gyp info spawn args   '-Dnode_lib_file=/root/.node-gyp/8.11.0/<(target_arch)/node.lib',
gyp info spawn args   '-Dmodule_root_dir=/codebuild/output/src044279047/src/packages/image-logo-generator/node_modules/sharp',
gyp info spawn args   '-Dnode_engine=v8',
gyp info spawn args   '--depth=.',
gyp info spawn args   '--no-parallel',
gyp info spawn args   '--generator-output',
gyp info spawn args   'build',
gyp info spawn args   '-Goutput_dir=.' ]
gyp info spawn make
gyp info spawn args [ 'BUILDTYPE=Release', '-C', 'build' ]
make: Entering directory `/codebuild/output/src044279047/src/packages/image-logo-generator/node_modules/sharp/build'
  TOUCH Release/obj.target/libvips-cpp.stamp
  CXX(target) Release/obj.target/sharp/src/common.o
../src/common.cc:25:22: fatal error: vips/vips8: No such file or directory
 #include <vips/vips8>
                      ^
compilation terminated.
make: *** [Release/obj.target/sharp/src/common.o] Error 1
make: Leaving directory `/codebuild/output/src044279047/src/packages/image-logo-generator/node_modules/sharp/build'
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:258:23)
gyp ERR! stack     at emitTwo (events.js:126:13)
gyp ERR! stack     at ChildProcess.emit (events.js:214:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:198:12)
gyp ERR! System Linux 4.14.59-64.43.amzn1.x86_64
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /codebuild/output/src044279047/src/packages/image-logo-generator/node_modules/sharp
gyp ERR! node -v v8.11.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok

[lovell]

v0.20.8 now available.

[lovell]

I expect to publish v0.20.8 with your fix in the next few days, thank you!