diff --git a/rslib/src/backend/card_rendering.rs b/rslib/src/backend/card_rendering.rs
index e202c0284..609268e50 100644
--- a/rslib/src/backend/card_rendering.rs
+++ b/rslib/src/backend/card_rendering.rs
@@ -34,6 +34,5 @@ impl BackendCardRenderingService for Backend {
             request.speed,
             &request.text,
         )
-        .map(Into::into)
     }
 }
diff --git a/rslib/src/backend/config.rs b/rslib/src/backend/config.rs
index 6e0bed153..349f2d9af 100644
--- a/rslib/src/backend/config.rs
+++ b/rslib/src/backend/config.rs
@@ -77,7 +77,6 @@ impl crate::services::ConfigService for Collection {
     ) -> Result<()> {
         let val: Value = serde_json::from_slice(&input.value_json)?;
         self.transact_no_undo(|col| col.set_config(input.key.as_str(), &val).map(|_| ()))
-            .map(Into::into)
     }
 
     fn remove_config(
diff --git a/rslib/src/backend/import_export.rs b/rslib/src/backend/import_export.rs
index 5ecf79582..6b2a6cb2f 100644
--- a/rslib/src/backend/import_export.rs
+++ b/rslib/src/backend/import_export.rs
@@ -18,9 +18,7 @@ impl BackendImportExportService for Backend {
         let mut guard = self.lock_open_collection()?;
 
         let col_inner = guard.take().unwrap();
-        col_inner
-            .export_colpkg(input.out_path, input.include_media, input.legacy)
-            .map(Into::into)
+        col_inner.export_colpkg(input.out_path, input.include_media, input.legacy)
     }
 
     fn import_collection_package(
@@ -36,6 +34,5 @@ impl BackendImportExportService for Backend {
             Path::new(&input.media_db),
             self.new_progress_handler(),
         )
-        .map(Into::into)
     }
 }
diff --git a/rslib/src/backend/sync.rs b/rslib/src/backend/sync.rs
index 03cf12686..fc198e8da 100644
--- a/rslib/src/backend/sync.rs
+++ b/rslib/src/backend/sync.rs
@@ -99,7 +99,7 @@ impl TryFrom<anki_proto::sync::SyncAuth> for SyncAuth {
 impl crate::services::BackendSyncService for Backend {
     fn sync_media(&self, input: anki_proto::sync::SyncAuth) -> Result<()> {
         let auth = input.try_into()?;
-        self.sync_media_in_background(auth, None).map(Into::into)
+        self.sync_media_in_background(auth, None)
     }
 
     fn media_sync_status(&self) -> Result<MediaSyncStatusResponse> {
diff --git a/rslib/src/card/service.rs b/rslib/src/card/service.rs
index 950cf8528..63824b789 100644
--- a/rslib/src/card/service.rs
+++ b/rslib/src/card/service.rs
@@ -131,7 +131,7 @@ impl From<Card> for anki_proto::cards::Card {
             original_due: c.original_due,
             original_deck_id: c.original_deck_id.0,
             flags: c.flags as u32,
-            original_position: c.original_position.map(Into::into),
+            original_position: c.original_position,
             memory_state: c.memory_state.map(Into::into),
             desired_retention: c.desired_retention,
             custom_data: c.custom_data,
diff --git a/rslib/src/deckconfig/service.rs b/rslib/src/deckconfig/service.rs
index 257270ac6..5776299fb 100644
--- a/rslib/src/deckconfig/service.rs
+++ b/rslib/src/deckconfig/service.rs
@@ -21,7 +21,6 @@ impl crate::services::DeckConfigService for Collection {
             col.add_or_update_deck_config_legacy(&mut conf)?;
             Ok(anki_proto::deck_config::DeckConfigId { dcid: conf.id.0 })
         })
-        .map(Into::into)
     }
 
     fn all_deck_config_legacy(&mut self) -> Result<generic::Json> {
@@ -62,7 +61,6 @@ impl crate::services::DeckConfigService for Collection {
 
     fn remove_deck_config(&mut self, input: anki_proto::deck_config::DeckConfigId) -> Result<()> {
         self.transact_no_undo(|col| col.remove_deck_config_inner(input.into()))
-            .map(Into::into)
     }
 
     fn get_deck_configs_for_update(
diff --git a/rslib/src/scheduler/service/mod.rs b/rslib/src/scheduler/service/mod.rs
index b66b1e565..9f2116c5d 100644
--- a/rslib/src/scheduler/service/mod.rs
+++ b/rslib/src/scheduler/service/mod.rs
@@ -55,7 +55,7 @@ impl crate::services::SchedulerService for Collection {
         self.transact_no_undo(|col| {
             let today = col.current_due_day(0)?;
             let usn = col.usn()?;
-            col.update_deck_stats(today, usn, input).map(Into::into)
+            col.update_deck_stats(today, usn, input)
         })
     }
 
@@ -70,7 +70,6 @@ impl crate::services::SchedulerService for Collection {
                 input.new_delta,
                 input.review_delta,
             )
-            .map(Into::into)
         })
     }
 
@@ -229,7 +228,6 @@ impl crate::services::SchedulerService for Collection {
 
     fn upgrade_scheduler(&mut self) -> Result<()> {
         self.transact_no_undo(|col| col.upgrade_to_v2_scheduler())
-            .map(Into::into)
     }
 
     fn get_queued_cards(
diff --git a/rslib/src/search/service/mod.rs b/rslib/src/search/service/mod.rs
index 7b8a62d90..01efbcfdd 100644
--- a/rslib/src/search/service/mod.rs
+++ b/rslib/src/search/service/mod.rs
@@ -129,7 +129,7 @@ impl crate::services::SearchService for Collection {
         &mut self,
         input: generic::Int64,
     ) -> Result<anki_proto::search::BrowserRow> {
-        self.browser_row_for_id(input.val).map(Into::into)
+        self.browser_row_for_id(input.val)
     }
 }
 
diff --git a/rslib/src/stats/service.rs b/rslib/src/stats/service.rs
index 077fd38fa..e9ae86f3c 100644
--- a/rslib/src/stats/service.rs
+++ b/rslib/src/stats/service.rs
@@ -34,7 +34,7 @@ impl crate::services::StatsService for Collection {
         &mut self,
         input: anki_proto::stats::GraphPreferences,
     ) -> error::Result<()> {
-        self.set_graph_preferences(input).map(Into::into)
+        self.set_graph_preferences(input)
     }
 }
 
diff --git a/rslib/src/storage/deck/mod.rs b/rslib/src/storage/deck/mod.rs
index e6db323b6..7b1e08d58 100644
--- a/rslib/src/storage/deck/mod.rs
+++ b/rslib/src/storage/deck/mod.rs
@@ -82,7 +82,6 @@ impl SqliteStorage {
             .query_and_then([machine_name], row_to_deck)?
             .next()
             .transpose()
-            .map_err(Into::into)
     }
 
     pub(crate) fn get_all_decks(&self) -> Result<Vec<Deck>> {
diff --git a/rslib/src/storage/deckconfig/mod.rs b/rslib/src/storage/deckconfig/mod.rs
index 56306a74f..2103e1512 100644
--- a/rslib/src/storage/deckconfig/mod.rs
+++ b/rslib/src/storage/deckconfig/mod.rs
@@ -68,7 +68,6 @@ impl SqliteStorage {
             .query_and_then([name], |row| Ok::<_, AnkiError>(DeckConfigId(row.get(0)?)))?
             .next()
             .transpose()
-            .map_err(Into::into)
     }
 
     pub(crate) fn add_deck_conf(&self, conf: &mut DeckConfig) -> Result<()> {
diff --git a/rslib/src/storage/note/mod.rs b/rslib/src/storage/note/mod.rs
index 03c82e919..554753717 100644
--- a/rslib/src/storage/note/mod.rs
+++ b/rslib/src/storage/note/mod.rs
@@ -280,7 +280,7 @@ impl super::SqliteStorage {
                 include_str!("get.sql"),
                 " WHERE id IN (SELECT nid FROM search_nids)"
             ))?
-            .query_and_then([], |r| row_to_note(r).map_err(Into::into))?
+            .query_and_then([], row_to_note)?
             .collect()
     }
 
diff --git a/rslib/src/storage/revlog/mod.rs b/rslib/src/storage/revlog/mod.rs
index 2c0a553fe..043014499 100644
--- a/rslib/src/storage/revlog/mod.rs
+++ b/rslib/src/storage/revlog/mod.rs
@@ -175,7 +175,7 @@ impl SqliteStorage {
     pub(crate) fn get_all_revlog_entries(&self, after: TimestampSecs) -> Result<Vec<RevlogEntry>> {
         self.db
             .prepare_cached(concat!(include_str!("get.sql"), " where id >= ?"))?
-            .query_and_then([after.0 * 1000], |r| row_to_revlog_entry(r).map(Into::into))?
+            .query_and_then([after.0 * 1000], row_to_revlog_entry)?
             .collect()
     }
 
diff --git a/rslib/src/storage/sqlite.rs b/rslib/src/storage/sqlite.rs
index 0f94e79df..c202bb0ef 100644
--- a/rslib/src/storage/sqlite.rs
+++ b/rslib/src/storage/sqlite.rs
@@ -410,7 +410,7 @@ fn schema_version(db: &Connection) -> Result<(bool, u8)> {
 
     Ok((
         false,
-        db.query_row("select ver from col", [], |r| r.get(0).map_err(Into::into))?,
+        db.query_row("select ver from col", [], |r| r.get(0))?,
     ))
 }
 
diff --git a/rslib/src/sync/http_server/media_manager/upload.rs b/rslib/src/sync/http_server/media_manager/upload.rs
index cf6551c5a..6a37cba61 100644
--- a/rslib/src/sync/http_server/media_manager/upload.rs
+++ b/rslib/src/sync/http_server/media_manager/upload.rs
@@ -79,7 +79,7 @@ impl ServerMediaManager {
 }
 
 fn add_or_replace_file(path: &Path, data: Vec<u8>) -> error::Result<(), FileIoError> {
-    write_file(path, data).map_err(Into::into)
+    write_file(path, data)
 }
 
 fn remove_file(path: &Path) -> error::Result<(), FileIoError> {
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 81ba7b7d9..608f0e356 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 # older versions may fail to compile; newer versions may fail the clippy tests
-channel = "1.84.0"
+channel = "1.85.0"