In my ongoing quest to convert Camlistore from r60 to ~Go1, I keep hitting build issues
where the Go tool doesn't tell me the actual problem.

Consider this log:

bradmac-2:camlistore.org bradfitz$ go build ./server/camlistored
./server/camlistored
    imports camlistore.org/pkg/serverconfig
    imports camlistore.org/pkg/blobserver
    imports camlistore/pkg/blobref: /Users/bradfitz/src/camlistore.org/pkg/blobserver/mergedenum.go:19:8: package could not be found locally
./server/camlistored
    imports camlistore/pkg/blobserver/cond: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:40:2: package could not be found locally
./server/camlistored
    imports camlistore/pkg/blobserver/localdisk: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:41:2: package could not be found locally
./server/camlistored
    imports camlistore/pkg/blobserver/remote: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:42:2: package could not be found locally
./server/camlistored
    imports camlistore/pkg/blobserver/replica: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:43:2: package could not be found locally
./server/camlistored
    imports camlistore/pkg/blobserver/s3: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:44:2: package could not be found locally
./server/camlistored
    imports camlistore/pkg/blobserver/shard: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:45:2: package could not be found locally
./server/camlistored
    imports camlistore/pkg/search: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:51:2: package could not be found locally
./server/camlistored
    imports camlistore/pkg/server: /Users/bradfitz/src/camlistore.org/server/camlistored/camlistored.go:52:2: package could not be found locally


bradmac-2:camlistore.org bradfitz$ go build ./pkg/serverconfig/
./pkg/serverconfig/
    imports camlistore.org/pkg/blobserver
    imports camlistore/pkg/blobref: /Users/bradfitz/src/camlistore.org/pkg/blobserver/mergedenum.go:19:8: package could not be found locally


bradmac-2:camlistore.org bradfitz$ go build ./pkg/blobserver/
./pkg/blobserver/
    imports camlistore/pkg/blobref: /Users/bradfitz/src/camlistore.org/pkg/blobserver/mergedenum.go:19:8: package could not be found locally


bradmac-2:camlistore.org bradfitz$ go build ./pkg/blobref/
# camlistore.org/pkg/osutil
pkg/osutil/paths.go:85: undefined: os.ENOENT



If that os.ENOENT was the whole problem, I wish the first go build would've told me that.