diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 42b8de852..b72318f32 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -7,7 +7,7 @@ name: Execute code coverage
 
 jobs:
   nightly-coverage:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/publish-binaries.yml b/.github/workflows/publish-binaries.yml
index 944932b4c..601a8dbf4 100644
--- a/.github/workflows/publish-binaries.yml
+++ b/.github/workflows/publish-binaries.yml
@@ -10,9 +10,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-18.04, macos-latest, windows-latest]
         include:
-          - os: ubuntu-latest
+          - os: ubuntu-18.04
             artifact_name: meilisearch
             asset_name: meilisearch-linux-amd64
           - os: macos-latest
diff --git a/.github/workflows/publish-deb-brew-pkg.yml b/.github/workflows/publish-deb-brew-pkg.yml
index adc785743..163b16573 100644
--- a/.github/workflows/publish-deb-brew-pkg.yml
+++ b/.github/workflows/publish-deb-brew-pkg.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   debian:
     name: Publish debian packagge
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
     - uses: hecrj/setup-rust-action@master
       with:
@@ -29,7 +29,7 @@ jobs:
 
   homebrew:
     name: Bump Homebrew formula
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - name: Create PR to Homebrew
         uses: mislav/bump-homebrew-formula-action@v1
diff --git a/.github/workflows/publish-docker-latest.yml b/.github/workflows/publish-docker-latest.yml
index 186a635c1..967248a07 100644
--- a/.github/workflows/publish-docker-latest.yml
+++ b/.github/workflows/publish-docker-latest.yml
@@ -7,7 +7,7 @@ name: Publish latest image to Docker Hub
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
       - name: Check if current release is latest
diff --git a/.github/workflows/publish-docker-tag.yml b/.github/workflows/publish-docker-tag.yml
index 852797832..d607d4286 100644
--- a/.github/workflows/publish-docker-tag.yml
+++ b/.github/workflows/publish-docker-tag.yml
@@ -8,7 +8,7 @@ name: Publish tagged image to Docker Hub
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v1
       - name: Publish to Registry
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ddc8150b6..bdb20fc70 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-18.04, macos-latest]
     steps:
     - uses: actions/checkout@v1
     - uses: actions-rs/toolchain@v1
@@ -34,11 +34,11 @@ jobs:
       uses: actions-rs/cargo@v1
       with:
         command: clippy
-        args: --all-targets -- --deny warnings
+        args: --all-targets
 
   build-image:
     name: Test the build of Docker image
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
     - uses: actions/checkout@v1
     - run: docker build . --file Dockerfile -t meilisearch
@@ -49,7 +49,7 @@ jobs:
     name: create prerelease
     needs: [check, build-image]
     if: ${{ contains(github.ref, 'release-') && github.event_name == 'push' }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -76,13 +76,13 @@ jobs:
     name: create release
     needs: [check, build-image]
     if:  ${{ contains(github.ref, 'tags/v') }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Get version number
         id: version-number
-        run: echo "##[set-output name=number;]$(echo ${{ github.ref }} | sed 's/.*\(v.*\)/\1/')" 
+        run: echo "##[set-output name=number;]$(echo ${{ github.ref }} | sed 's/.*\(v.*\)/\1/')"
       - name: Create Release
         id: create_release
         uses: actions/create-release@v1
diff --git a/bors.toml b/bors.toml
index 35b5c4a9f..4a3bf8c38 100644
--- a/bors.toml
+++ b/bors.toml
@@ -1,3 +1,3 @@
-status = ["Test on macos-latest", "Test on ubuntu-latest"]
+status = ["Test on macos-latest", "Test on ubuntu-18.04"]
 # 4 hours timeout
 timeout-sec = 14400
diff --git a/meilisearch-core/src/store/facets.rs b/meilisearch-core/src/store/facets.rs
index 1a7579099..6766a8a01 100644
--- a/meilisearch-core/src/store/facets.rs
+++ b/meilisearch-core/src/store/facets.rs
@@ -48,10 +48,10 @@ impl<'a> BytesDecode<'a> for FacetData {
         let mut size_buf = [0; LEN];
         size_buf.copy_from_slice(bytes.get(0..LEN)?);
         // decode size of the first item from the bytes
-        let first_size = usize::from_be_bytes(size_buf);
+        let first_size = u64::from_be_bytes(size_buf);
         // decode first and second items
-        let first_item = Str::bytes_decode(bytes.get(LEN..(LEN + first_size))?)?;
-        let second_item = CowSet::bytes_decode(bytes.get((LEN + first_size)..)?)?;
+        let first_item = Str::bytes_decode(bytes.get(LEN..(LEN + first_size as usize))?)?;
+        let second_item = CowSet::bytes_decode(bytes.get((LEN + first_size as usize)..)?)?;
         Some((first_item, second_item))
     }
 }
diff --git a/meilisearch-http/src/main.rs b/meilisearch-http/src/main.rs
index 8a4cd620b..0fd84fac1 100644
--- a/meilisearch-http/src/main.rs
+++ b/meilisearch-http/src/main.rs
@@ -123,7 +123,7 @@ pub fn print_launch_resume(opt: &Opt, data: &Data) {
     eprintln!("{}", ascii_name);
 
     eprintln!("Database path:\t\t{:?}", opt.db_path);
-    eprintln!("Server listening on: http://\t{:?}", opt.http_addr);
+    eprintln!("Server listening on:\t\"http://{}\"", opt.http_addr);
     eprintln!("Environment:\t\t{:?}", opt.env);
     eprintln!("Commit SHA:\t\t{:?}", env!("VERGEN_SHA").to_string());
     eprintln!(
diff --git a/meilisearch-http/src/snapshot.rs b/meilisearch-http/src/snapshot.rs
index 505ddd269..90db8460a 100644
--- a/meilisearch-http/src/snapshot.rs
+++ b/meilisearch-http/src/snapshot.rs
@@ -7,7 +7,6 @@ use std::fs::create_dir_all;
 use std::path::Path;
 use std::thread;
 use std::time::Duration;
-use tempfile::TempDir;
 
 pub fn load_snapshot(
     db_path: &str,
@@ -28,12 +27,22 @@ pub fn load_snapshot(
     }
 }
 
-pub fn create_snapshot(data: &Data, snapshot_path: &Path) -> Result<(), Error> {
-    let tmp_dir = TempDir::new_in(snapshot_path)?;
+pub fn create_snapshot(data: &Data, snapshot_dir: impl AsRef<Path>, snapshot_name: impl AsRef<str>) -> Result<(), Error> {
+    create_dir_all(&snapshot_dir)?;
+    let tmp_dir = tempfile::tempdir_in(&snapshot_dir)?;
 
     data.db.copy_and_compact_to_path(tmp_dir.path())?;
 
-    compression::to_tar_gz(tmp_dir.path(), snapshot_path).map_err(|e| Error::Internal(format!("something went wrong during snapshot compression: {}", e)))
+    let temp_snapshot_file = tempfile::NamedTempFile::new_in(&snapshot_dir)?;
+
+    compression::to_tar_gz(tmp_dir.path(), temp_snapshot_file.path())
+        .map_err(|e| Error::Internal(format!("something went wrong during snapshot compression: {}", e)))?;
+
+    let snapshot_path = snapshot_dir.as_ref().join(snapshot_name.as_ref());
+
+    temp_snapshot_file.persist(snapshot_path).map_err(|e| Error::Internal(e.to_string()))?;
+
+    Ok(())
 }
 
 pub fn schedule_snapshot(data: Data, snapshot_dir: &Path, time_gap_s: u64) -> Result<(), Error> {
@@ -42,10 +51,11 @@ pub fn schedule_snapshot(data: Data, snapshot_dir: &Path, time_gap_s: u64) -> Re
     }
     let db_name = Path::new(&data.db_path).file_name().ok_or_else(|| Error::Internal("invalid database name".to_string()))?;
     create_dir_all(snapshot_dir)?;
-    let snapshot_path = snapshot_dir.join(format!("{}.snapshot", db_name.to_str().unwrap_or("data.ms")));
+    let snapshot_name = format!("{}.snapshot", db_name.to_str().unwrap_or("data.ms"));
+    let snapshot_dir = snapshot_dir.to_owned();
 
     thread::spawn(move || loop {
-        if let Err(e) = create_snapshot(&data, &snapshot_path) {
+        if let Err(e) = create_snapshot(&data, &snapshot_dir, &snapshot_name) {
             error!("Unsuccessful snapshot creation: {}", e);
         }
         thread::sleep(Duration::from_secs(time_gap_s));
@@ -62,7 +72,7 @@ mod tests {
 
     #[test]
     fn test_pack_unpack() {
-        let tempdir = TempDir::new().unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
 
         let test_dir = tempdir.path();
         let src_dir = test_dir.join("src");