Hello,
find below the details...
I know that this is an evergreen error, since it is a moving target, but at least provide some details with which iojs version it worked last for you. Maybe there could be somewhere a table nodejs/iojs version | working mongodb version...
Thanks
Ognian

OS X 10.9

npm install

> kerberos@0.0.12 install /storage/safe/ogi-it/Projekte/LIMS/LIMS_src/LIMS_eval/node_modules/mongodb/node_modules/mongodb-core/node_modules/kerberos
> (node-gyp rebuild 2> builderror.log) || (exit 0)

CXX(target) Release/obj.target/kerberos/lib/kerberos.o
CXX(target) Release/obj.target/kerberos/lib/worker.o
CC(target) Release/obj.target/kerberos/lib/kerberosgss.o
CC(target) Release/obj.target/kerberos/lib/base64.o
CXX(target) Release/obj.target/kerberos/lib/kerberos_context.o
SOLINK_MODULE(target) Release/kerberos.node
npm WARN installMany nopt was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany npmlog was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany request was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany semver was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany tar was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany tar-pack was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany mkdirp was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany rc was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree
npm WARN installMany rimraf was bundled with node-pre-gyp@0.6.4, but bundled package wasn't found in unpacked tree

> bson-ext@0.1.8 install /storage/safe/ogi-it/Projekte/LIMS/LIMS_src/LIMS_eval/node_modules/mongodb/node_modules/mongodb-core/node_modules/bson/node_modules/bson-ext
> (node-pre-gyp install --fallback-to-build) || (node-gyp rebuild 2> builderror.log) || (exit 0)

CXX(target) Release/obj.target/bson/ext/bson.o
../ext/bson.cc:803:17: warning: 'DecodeBytes' is deprecated: Use DecodeBytes(isolate, ...) [-Wdeprecated-declarations]
ssize_t len = DecodeBytes(args[0], BINARY);
^
/Users/ogi/.node-gyp/2.3.0/src/node.h:318:32: note: 'DecodeBytes' has been explicitly marked deprecated here
inline ssize_t DecodeBytes(
^
/Users/ogi/.node-gyp/2.3.0/src/node.h:66:42: note: expanded from macro 'NODE_DEPRECATED'
_attribute_((deprecated(message))) declarator
^
../ext/bson.cc:811:3: warning: 'DecodeWrite' is deprecated: Use DecodeWrite(isolate, ...) [-Wdeprecated-declarations]
DecodeWrite(data, len, args[0], BINARY);
^
/Users/ogi/.node-gyp/2.3.0/src/node.h:331:32: note: 'DecodeWrite' has been explicitly marked deprecated here
inline ssize_t DecodeWrite(char* buf,
^
/Users/ogi/.node-gyp/2.3.0/src/node.h:66:42: note: expanded from macro 'NODE_DEPRECATED'
_attribute_((deprecated(message))) declarator
^
../ext/bson.cc:905:28: warning: 'Encode' is deprecated: Use Encode(isolate, ...) [-Wdeprecated-declarations]
Local<Value> bin_value = Encode(serialized_object, object_size, BINARY)->ToString();
^
/Users/ogi/.node-gyp/2.3.0/src/node.h:299:45: note: 'Encode' has been explicitly marked deprecated here
inline v8::Local<v8::Value> Encode(
^
/Users/ogi/.node-gyp/2.3.0/src/node.h:66:42: note: expanded from macro 'NODE_DEPRECATED'
_attribute_((deprecated(message))) declarator
^
3 warnings generated.
SOLINK_MODULE(target) Release/bson.node
mongodb@2.0.33 node_modules/mongodb
├── readable-stream@1.0.31 (inherits@2.0.1, isarray@0.0.1, string_decoder@0.10.31, core-util-is@1.0.1)
└── mongodb-core@1.1.32 (kerberos@0.0.12, bson@0.3.2)