diff --git a/secert-hitler/Cargo.lock b/secert-hitler/Cargo.lock
index 440f6fb..6d19f0b 100644
--- a/secert-hitler/Cargo.lock
+++ b/secert-hitler/Cargo.lock
@@ -1,11 +1,38 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "autocfg"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cced8691919c02aac3cb0a1bc2e9b73d89e832bf9a06fc579d4e71b68a2da061"
+dependencies = [
+ "crossbeam-utils",
+ "maybe-uninit",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
+dependencies = [
+ "autocfg",
+ "cfg-if",
+ "lazy_static",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.1.14"
@@ -17,12 +44,24 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
 [[package]]
 name = "libc"
 version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "99e85c08494b21a9054e7fe1374a732aeadaff3980b6990b94bfd3a70f690005"
 
+[[package]]
+name = "maybe-uninit"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.6"
@@ -74,6 +113,7 @@ dependencies = [
 name = "secert-hitler"
 version = "0.1.0"
 dependencies = [
+ "crossbeam-channel",
  "rand",
 ]
 
diff --git a/secert-hitler/Cargo.toml b/secert-hitler/Cargo.toml
index de858f8..bb12c43 100644
--- a/secert-hitler/Cargo.toml
+++ b/secert-hitler/Cargo.toml
@@ -8,3 +8,4 @@ edition = "2018"
 
 [dependencies]
 rand = "*"
+crossbeam-channel = "*"
diff --git a/secert-hitler/src/controller/state/mockroom.rs b/secert-hitler/src/controller/state/mockroom.rs
index 36d01ee..cd57dc5 100644
--- a/secert-hitler/src/controller/state/mockroom.rs
+++ b/secert-hitler/src/controller/state/mockroom.rs
@@ -3,6 +3,7 @@ use super::event::Event;
 
 use rand::{self, Rng};
 use rand::distributions::Alphanumeric;
+use crossbeam_channel::{unbounded, Receiver, Sender};
 
 #[derive(Clone, Debug)]
 pub struct MockRoom {
@@ -60,6 +61,12 @@ impl Room for MockRoom {
    }
 }
 
+impl Drop for MockRoom {
+   fn drop(&mut self) {
+      println!("not impl");
+   }
+}
+
 pub fn rands() -> String {
    rand::thread_rng()
       .sample_iter(&Alphanumeric)
diff --git a/testdata/matrix-sandbox/homeserver.log b/testdata/matrix-sandbox/homeserver.log
index 829897a..57065af 100644
--- a/testdata/matrix-sandbox/homeserver.log
+++ b/testdata/matrix-sandbox/homeserver.log
@@ -549,3 +549,11 @@
 2020-05-02 14:01:12,321 - synapse.storage.data_stores.main.event_push_actions - 506 - INFO - event_push_action_stream_orderings-39 - Searching for stream ordering 1 day ago
 2020-05-02 14:01:12,321 - synapse.storage.data_stores.main.event_push_actions - 511 - INFO - event_push_action_stream_orderings-39 - Found stream ordering 1 day ago: it's 2
 2020-05-02 14:01:12,335 - synapse.storage.data_stores.main - 425 - INFO - generate_user_daily_visits-79 - Calling _generate_user_daily_visits
+2020-05-02 14:06:12,336 - synapse.storage.data_stores.main - 425 - INFO - generate_user_daily_visits-80 - Calling _generate_user_daily_visits
+2020-05-02 14:06:52,323 - synapse.metrics - 464 - INFO -  - Collecting gc 1
+2020-05-02 14:11:12,325 - synapse.storage.data_stores.main.event_push_actions - 499 - INFO - event_push_action_stream_orderings-40 - Searching for stream ordering 1 month ago
+2020-05-02 14:11:12,327 - synapse.storage.data_stores.main.event_push_actions - 504 - INFO - event_push_action_stream_orderings-40 - Found stream ordering 1 month ago: it's 2
+2020-05-02 14:11:12,327 - synapse.storage.data_stores.main.event_push_actions - 506 - INFO - event_push_action_stream_orderings-40 - Searching for stream ordering 1 day ago
+2020-05-02 14:11:12,328 - synapse.storage.data_stores.main.event_push_actions - 511 - INFO - event_push_action_stream_orderings-40 - Found stream ordering 1 day ago: it's 2
+2020-05-02 14:11:12,336 - synapse.storage.data_stores.main - 425 - INFO - generate_user_daily_visits-81 - Calling _generate_user_daily_visits
+2020-05-02 14:12:42,319 - synapse.metrics - 464 - INFO -  - Collecting gc 1