diff --git a/src/nimblepkg/packageparser.nim b/src/nimblepkg/packageparser.nim
index 94580743..8411390d 100644
--- a/src/nimblepkg/packageparser.nim
+++ b/src/nimblepkg/packageparser.nim
@@ -315,8 +315,8 @@ proc inferInstallRules(pkgInfo: var PackageInfo, options: Options) =
     if fileExists(pkgInfo.getRealDir() / pkgInfo.name.addFileExt("nim")):
       pkgInfo.installFiles.add(pkgInfo.name.addFileExt("nim"))
 
-proc readPackageInfo(nf: NimbleFile, options: Options,
-    onlyMinimalInfo=false): PackageInfo =
+proc readPackageInfo(result: var PackageInfo, nf: NimbleFile, options: Options,
+    onlyMinimalInfo=false) =
   ## Reads package info from the specified Nimble file.
   ##
   ## Attempts to read it using the "old" Nimble ini format first, if that
@@ -335,7 +335,8 @@ proc readPackageInfo(nf: NimbleFile, options: Options,
 
   # Check the cache.
   if options.pkgInfoCache.hasKey(nf):
-    return options.pkgInfoCache[nf]
+    result = options.pkgInfoCache[nf]
+    return
 
   result = initPackageInfo(nf)
   let minimalInfo = getNameVersion(nf)
@@ -403,7 +404,7 @@ proc readPackageInfo(nf: NimbleFile, options: Options,
 proc validate*(file: NimbleFile, options: Options,
                error: var ValidationError, pkgInfo: var PackageInfo): bool =
   try:
-    pkgInfo = readPackageInfo(file, options)
+    pkgInfo.readPackageInfo(file, options)
   except ValidationError as exc:
     error = exc[]
     return false
@@ -413,8 +414,9 @@ proc validate*(file: NimbleFile, options: Options,
 proc getPkgInfoFromFile*(file: NimbleFile, options: Options): PackageInfo =
   ## Reads the specified .nimble file and returns its data as a PackageInfo
   ## object. Any validation errors are handled and displayed as warnings.
+  var info: PackageInfo
   try:
-    result = readPackageInfo(file, options)
+    info.readPackageInfo(file, options)
   except ValidationError:
     let exc = (ref ValidationError)(getCurrentException())
     if exc.warnAll:
@@ -422,6 +424,8 @@ proc getPkgInfoFromFile*(file: NimbleFile, options: Options): PackageInfo =
       display("Hint:", exc.hint, Warning, HighPriority)
     else:
       raise
+  finally:
+    result = info
 
 proc getPkgInfo*(dir: string, options: Options): PackageInfo =
   ## Find the .nimble file in ``dir`` and parses it, returning a PackageInfo.
@@ -453,7 +457,7 @@ proc getInstalledPkgs*(libsDir: string, options: Options):
         let meta = readMetaData(path)
         var pkg: PackageInfo
         try:
-          pkg = readPackageInfo(nimbleFile, options, onlyMinimalInfo=false)
+          pkg.readPackageInfo(nimbleFile, options, onlyMinimalInfo=false)
         except ValidationError:
           let exc = (ref ValidationError)(getCurrentException())
           exc.msg = createErrorMsg(validationErrorMsg, path, exc.msg)
@@ -477,7 +481,9 @@ proc getInstalledPkgs*(libsDir: string, options: Options):
         result.add((pkg, meta))
 
 proc isNimScript*(nf: string, options: Options): bool =
-  result = readPackageInfo(nf, options).isNimScript
+  var p: PackageInfo
+  p.readPackageInfo(nf, options)
+  result = p.isNimScript
 
 proc toFullInfo*(pkg: PackageInfo, options: Options): PackageInfo =
   if pkg.isMinimal: