diff --git a/v2/robotmk/src/config/internal.rs b/v2/robotmk/src/config/internal.rs
index ab3cbf0a..60a4166d 100644
--- a/v2/robotmk/src/config/internal.rs
+++ b/v2/robotmk/src/config/internal.rs
@@ -5,8 +5,6 @@ use crate::session::Session;
 use crate::termination::TerminationFlag;
 
 use camino::Utf8PathBuf;
-use log::{debug, warn};
-use std::collections::HashMap;
 use std::sync::Arc;
 use std::sync::Mutex;
 
@@ -60,24 +58,6 @@ pub fn from_external_config(
     )
 }
 
-pub fn drop_suites<'a>(
-    suites: Vec<Suite>,
-    suites_to_be_dropped: impl IntoIterator<Item = &'a String>,
-) -> Vec<Suite> {
-    let mut suites_by_name: HashMap<String, Suite> =
-        HashMap::from_iter(suites.into_iter().map(|suite| (suite.name.clone(), suite)));
-    for suite_name in suites_to_be_dropped {
-        if suites_by_name.remove(suite_name).is_some() {
-            debug!("Dropped suite {suite_name}")
-        } else {
-            warn!("Attempted to drop suite {suite_name}, but no suite with this name exists")
-        }
-    }
-    let mut suites = suites_by_name.into_values().collect::<Vec<Suite>>();
-    sort_suites_by_name(&mut suites);
-    suites
-}
-
 fn sort_suites_by_name(suites: &mut [Suite]) {
     suites.sort_by_key(|suite| suite.name.to_string());
 }
@@ -206,38 +186,4 @@ mod tests {
         );
         assert_eq!(suites[1].session, Session::Current(CurrentSession {}));
     }
-
-    #[test]
-    fn test_drop_suites() {
-        let (_global_config, suites) = from_external_config(
-            Config {
-                working_directory: Utf8PathBuf::from("/working"),
-                results_directory: Utf8PathBuf::from("/results"),
-                suites: HashMap::from([
-                    (String::from("system"), system_suite_config()),
-                    (String::from("rcc1"), rcc_suite_config()),
-                    (String::from("rcc2"), rcc_suite_config()),
-                ]),
-            },
-            TerminationFlag::new(),
-        );
-        let suites = drop_suites(suites, &vec!["rcc1".into()]);
-        assert_eq!(suites.len(), 2);
-        assert_eq!(suites[0].name, "rcc2");
-        assert_eq!(
-            suites[0].environment,
-            Environment::Rcc(RCCEnvironment {
-                binary_path: Utf8PathBuf::from("/bin/rcc"),
-                robot_yaml_path: Utf8PathBuf::from("/suite/rcc/robot.yaml"),
-                controller: "robotmk".into(),
-                space: "rcc2".into(),
-                build_timeout: 300,
-            })
-        );
-        assert_eq!(suites[1].name, "system");
-        assert_eq!(
-            suites[1].environment,
-            Environment::System(SystemEnvironment {}),
-        );
-    }
 }
diff --git a/v2/robotmk/src/environment.rs b/v2/robotmk/src/environment.rs
index 83b7fe8b..4a7816c8 100644
--- a/v2/robotmk/src/environment.rs
+++ b/v2/robotmk/src/environment.rs
@@ -1,7 +1,7 @@
 use super::child_process_supervisor::{ChildProcessOutcome, ChildProcessSupervisor, StdioPaths};
 use super::command_spec::CommandSpec;
 use super::config::external::EnvironmentConfig;
-use super::config::internal::{drop_suites, GlobalConfig, Suite};
+use super::config::internal::{GlobalConfig, Suite};
 use super::logging::log_and_return_error;
 use super::results::{
     EnvironmentBuildStatesAdministrator, EnvironmentBuildStatus, EnvironmentBuildStatusError,
@@ -26,28 +26,28 @@ pub fn build_environments(global_config: &GlobalConfig, suites: Vec<Suite>) -> R
     let env_building_stdio_directory =
         environment_building_stdio_directory(&global_config.working_directory);
 
-    let mut suites_to_be_dropped = vec![];
-    for suite in suites.iter() {
-        let drop_suite = build_environment(
-            suite,
-            &mut environment_build_states_administrator,
-            &env_building_stdio_directory,
-        )?;
-
-        if drop_suite {
-            suites_to_be_dropped.push(suite.name.clone());
-        }
-    }
-
-    Ok(drop_suites(suites, &suites_to_be_dropped))
+    suites
+        .into_iter()
+        .filter_map(|suite| {
+            match build_environment(
+                suite,
+                &mut environment_build_states_administrator,
+                &env_building_stdio_directory,
+            ) {
+                Ok(None) => None,
+                Ok(Some(suite)) => Some(Ok(suite)),
+                Err(e) => Some(Err(e)),
+            }
+        })
+        .collect()
 }
 
-fn build_environment<'a>(
-    suite: &Suite,
-    environment_build_states_administrator: &mut EnvironmentBuildStatesAdministrator<'a>,
+fn build_environment(
+    suite: Suite,
+    environment_build_states_administrator: &mut EnvironmentBuildStatesAdministrator<'_>,
     stdio_directory: &Utf8Path,
-) -> Result<bool> {
-    let drop_suite = match suite.environment.build_instructions() {
+) -> Result<Option<Suite>> {
+    let suite = match suite.environment.build_instructions() {
         Some(build_instructions) => {
             info!("Building environment for suite {}", suite.name);
             environment_build_states_administrator
@@ -64,16 +64,16 @@ fn build_environment<'a>(
             let drop_suite = matches!(environment_build_status, EnvironmentBuildStatus::Failure(_));
             environment_build_states_administrator
                 .insert_and_write_atomic(&suite.name, environment_build_status)?;
-            drop_suite
+            (!drop_suite).then_some(suite)
         }
         None => {
             debug!("Nothing to do for suite {}", suite.name);
             environment_build_states_administrator
                 .insert_and_write_atomic(&suite.name, EnvironmentBuildStatus::NotNeeded)?;
-            false
+            Some(suite)
         }
     };
-    Ok(drop_suite)
+    Ok(suite)
 }
 
 fn run_environment_build(
diff --git a/v2/robotmk/src/results.rs b/v2/robotmk/src/results.rs
index 5ba9467e..5289c36a 100644
--- a/v2/robotmk/src/results.rs
+++ b/v2/robotmk/src/results.rs
@@ -1,10 +1,10 @@
+use super::config::internal::Suite;
 use anyhow::{Context, Result};
 use atomicwrites::{AtomicFile, OverwriteBehavior};
 use camino::{Utf8Path, Utf8PathBuf};
 use serde::Serialize;
 use serde_json::to_string;
 use std::{collections::HashMap, io::Write};
-use super::config::internal::Suite;
 
 pub fn suite_results_directory(results_directory: &Utf8Path) -> Utf8PathBuf {
     results_directory.join("suites")
@@ -40,7 +40,9 @@ impl<'a> EnvironmentBuildStatesAdministrator<'a> {
     ) -> EnvironmentBuildStatesAdministrator<'a> {
         Self {
             build_states: HashMap::from_iter(
-                suites.iter().map(|suite| (suite.name.to_string(), EnvironmentBuildStatus::Pending)),
+                suites
+                    .iter()
+                    .map(|suite| (suite.name.to_string(), EnvironmentBuildStatus::Pending)),
             ),
             working_directory,
             results_directory,