diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 2a73291..52535ce 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -83,7 +83,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#zome_call_single_value -- --connection-string ws://localhost:8888 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -93,7 +93,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#single_write_many_read -- --connection-string ws://localhost:8888 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -103,7 +103,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#dht_sync_lag -- --connection-string ws://localhost:8888 --agents 2 --behaviour write:1 --behaviour record_lag:1 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -113,7 +113,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#app_install -- --connection-string ws://localhost:8888 --agents 2 --behaviour minimal:1 --behaviour large:1 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -123,7 +123,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#first_call -- --connection-string ws://localhost:8888 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -133,7 +133,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#write_read -- --connection-string ws://localhost:8888 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -143,7 +143,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#write_query -- --connection-string ws://localhost:8888 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -153,7 +153,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#local_signals -- --connection-string ws://localhost:8888 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -163,7 +163,7 @@ jobs:
           # Start a sandbox conductor and run it in the background
           nix develop .#ci -c bash -c "hc s clean && echo "1234" | hc s --piped create && echo "1234" | hc s --piped -f 8888 run &"
 
-          # Run the scenario for 5 seconds
+          # Run the scenario
           RUST_LOG=info nix run .#write_validated -- --connection-string ws://localhost:8888 --duration 5 --no-progress
 
           pkill hc && pkill holochain && pkill lair-keystore
@@ -177,7 +177,7 @@ jobs:
           # Start a TryCP instance
           nix develop .#ci -c bash -c "source ./scripts/trycp.sh && start_trycp &"
 
-          # Run the scenario for 30 seconds
+          # Run the scenario
           RUST_LOG=warn CONDUCTOR_CONFIG="CI" MIN_PEERS=2 nix run .#trycp_write_validated -- --targets targets-ci.yaml --instances-per-target 2 --duration 30 --no-progress
 
           # Stop the TryCP instance
@@ -194,8 +194,8 @@ jobs:
           # Start a TryCP instance
           nix develop .#ci -c bash -c "source ./scripts/trycp.sh && start_trycp &"
 
-          # Run the scenario for 30 seconds
-          RUST_LOG=warn CONDUCTOR_CONFIG="CI" MIN_PEERS=2 nix run .#remote_call_rate -- --targets targets-ci.yaml --instances-per-target 2 --duration 30 --no-progress
+          # Run the scenario
+          RUST_LOG=warn CONDUCTOR_CONFIG="CI" MIN_PEERS=2 nix run .#remote_call_rate -- --targets targets-ci.yaml --instances-per-target 2 --duration 45 --no-progress
 
           # Stop the TryCP instance
           nix develop .#ci -c bash -c "source ./scripts/trycp.sh && stop_trycp"
@@ -209,7 +209,7 @@ jobs:
           # Start a TryCP instance
           nix develop .#ci -c bash -c "source ./scripts/trycp.sh && start_trycp &"
 
-          # Run the scenario for 30 seconds
+          # Run the scenario
           RUST_LOG=warn CONDUCTOR_CONFIG="CI" MIN_PEERS=2 nix run .#two_party_countersigning -- --targets targets-ci.yaml --behaviour initiate:1 --behaviour participate:1 --instances-per-target 2 --duration 30 --no-progress
 
           # Stop the TryCP instance
@@ -226,8 +226,8 @@ jobs:
           # Start a TryCP instance
           nix develop .#ci -c bash -c "source ./scripts/trycp.sh && start_trycp &"
 
-          # Run the scenario for 30 seconds
-          RUST_LOG=warn CONDUCTOR_CONFIG="CI" MIN_PEERS=2 nix run .#validation_receipts -- --targets targets-ci.yaml --instances-per-target 2 --duration 30 --no-progress
+          # Run the scenario
+          RUST_LOG=warn CONDUCTOR_CONFIG="CI" MIN_PEERS=2 nix run .#validation_receipts -- --targets targets-ci.yaml --instances-per-target 2 --duration 45 --no-progress
 
           # Stop the TryCP instance
           nix develop .#ci -c bash -c "source ./scripts/trycp.sh && stop_trycp"
@@ -243,7 +243,7 @@ jobs:
           # Start a TryCP instance
           nix develop .#ci -c bash -c "source ./scripts/trycp.sh && start_trycp &"
 
-          # Run the scenario for 30 seconds
+          # Run the scenario
           RUST_LOG=warn CONDUCTOR_CONFIG="CI" MIN_PEERS=2 nix run .#remote_signals -- --targets targets-ci.yaml --instances-per-target 2 --duration 30 --no-progress
 
           # Stop the TryCP instance
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 33c63f7..b3b2fd6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   we will separate those parts out and publish them as a crate. For now, this is private to the project.
 - `run_with_required_agents` function for TryCP scenarios that fails if the number of agents that completed the scenario
   is less than the passed `min_required_agents`. Can be overridden with the `MIN_REQUIRED_AGENTS` environment variable.
+- Check that the scenarios have a cargo package name that matches the directory name used by Nix packages. Panic when
+  building the scenario if they do not match. [#122](https://github.com/holochain/wind-tunnel/pull/122)
 
 ### Changed
 - Updated to new Holochain client version 0.5.0-alpha.4 which allowed `&mut self` to be replaced with `&self` in admin
diff --git a/nix/modules/rust.nix b/nix/modules/rust.nix
index e1ad1ab..a9abd41 100644
--- a/nix/modules/rust.nix
+++ b/nix/modules/rust.nix
@@ -12,7 +12,7 @@ let
 
   rustWithWasmTarget = rustPkgs.rust-bin.stable."${rustVersion}".minimal.override {
     targets = [ "wasm32-unknown-unknown" ];
-    extensions = [ "clippy" ];
+    extensions = [ "clippy" "rustfmt" ];
   };
 
   craneLib = (crane.mkLib rustPkgs).overrideToolchain rustWithWasmTarget;
diff --git a/scenarios/scenario_build.rs b/scenarios/scenario_build.rs
index 6082242..38270d0 100644
--- a/scenarios/scenario_build.rs
+++ b/scenarios/scenario_build.rs
@@ -1,9 +1,22 @@
 use happ_builder::{build_happs, required_tools_available, BuildOptions, HappBuilderResult};
+use std::{path::PathBuf, str::FromStr};
 
 /// Build the required DNA(s) and hApps for the scenario.
 /// The built DNA(s) will appear as `/dnas/<scenario-name>/<dna-name>.dna` from the project root.
-/// /// The built hApp(s) will appear as `/happs/<scenario-name>/<happ-name>.happ` from the project root.
+/// The built hApp(s) will appear as `/happs/<scenario-name>/<happ-name>.happ` from the project root.
 fn main() -> HappBuilderResult {
+    let scenario_dir = PathBuf::from_str(std::env!("CARGO_MANIFEST_DIR")).unwrap();
+    let dir_name = scenario_dir.file_name().unwrap().to_str().unwrap();
+    let package_name = std::env!("CARGO_PKG_NAME");
+    if package_name != dir_name {
+        // The directory name is used as the Nix package name which is in turn used with `cargo run`
+        // inside the Nix package. Therefore, panic during the build if the directory name does not
+        // match the package name.
+        panic!(
+            "The package name of the scenario '{package_name}' does not match the directory name '{dir_name}'",
+        );
+    }
+
     println!("cargo:rerun-if-env-changed=SKIP_HAPP_BUILD");
     if std::env::var("SKIP_HAPP_BUILD").is_ok() {
         return Ok(());