diff --git a/crox/Cargo.toml b/crox/Cargo.toml
index ae853c3..b4243c0 100644
--- a/crox/Cargo.toml
+++ b/crox/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Wesley Wiser <wwiser@gmail.com>"]
 edition = "2018"
 
 [dependencies]
-measureme = "0.2"
+measureme = { "path" = "../measureme" }
 serde = { version = "1.0", features = [ "derive" ] }
 serde_json = "1.0"
 structopt = "0.2"
diff --git a/crox/src/main.rs b/crox/src/main.rs
index 7aa70bd..6946fbf 100644
--- a/crox/src/main.rs
+++ b/crox/src/main.rs
@@ -47,7 +47,7 @@ struct Opt {
 fn main() -> Result<(), Box<std::error::Error>> {
     let opt = Opt::from_args();
 
-    let data = ProfilingData::new(&opt.file_prefix);
+    let data = ProfilingData::new(&opt.file_prefix)?;
 
     let chrome_file = BufWriter::new(fs::File::create("chrome_profiler.json")?);
 
diff --git a/measureme/Cargo.toml b/measureme/Cargo.toml
index c1c27be..e67e59c 100644
--- a/measureme/Cargo.toml
+++ b/measureme/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "measureme"
-version = "0.2.1"
+version = "0.3.0"
 authors = ["Wesley Wiser <wwiser@gmail.com>", "Michael Woerister <michaelwoerister@posteo>"]
 edition = "2018"
 description = "Support crate for rustc's self-profiling feature"