diff --git a/Cargo.lock b/Cargo.lock
index 4368248..1006bff 100644
--- a/Cargo.lock
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-"checksum try_future 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "30454186ee38f29e06f386c6e9f773b7c33e85430db6f90e4597419b4c5baad7"
-"checksum ttf-parser 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3e5d7cd7ab3e47dda6e56542f4bbf3824c15234958c6e1bd6aaa347e93499fdc"
-"checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
-"checksum typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
-"checksum ucd-trie 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c"
-"checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
-"checksum unicase 2.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
-"checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
-"checksum unicode-normalization 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "6fb19cf769fa8c6a80a162df694621ebeb4dafb606470b2b2fce0be40a98a977"
-"checksum unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
-"checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
-"checksum vcpkg 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "6454029bf181f092ad1b853286f23e2c507d8e8194d01d92da4a55c274a5508c"
-"checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
-"checksum version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
-"checksum want 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a05d9d966753fa4b5c8db73fcab5eed4549cfe0e1e4e66911e5564a0085c35d1"
-"checksum wasi 0.10.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
-"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
-"checksum winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
-"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
-"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-"checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
diff --git a/Cargo.toml b/Cargo.toml
index 725b54c..580a662 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 name = "shiny-robots"
 version = "0.1.0"
 authors = ["Sam Rijs <srijs@airpost.net>"]
+edition = "2018"
 
 [workspace]
 members = [
@@ -35,6 +36,7 @@ tokio-core = "0.1.12"
 tokio-service = "0.1.0"
 toml = "0.4.5"
 try_future = "0.1.1"
+once_cell = "1.4"
 
 
 [build-dependencies]
diff --git a/src/engine/futures/analyze.rs b/src/engine/fut/analyze.rs
similarity index 92%
rename from src/engine/futures/analyze.rs
rename to src/engine/fut/analyze.rs
index 16d7415..d1d0427 100644
--- a/src/engine/futures/analyze.rs
+++ b/src/engine/fut/analyze.rs
@@ -2,13 +2,13 @@ use failure::Error;
 use futures::{Future, Poll, Stream};
 use futures::stream::futures_unordered;
 
-use ::models::crates::{AnalyzedDependencies, CrateDeps};
+use crate::models::crates::{AnalyzedDependencies, CrateDeps};
 
 use super::super::Engine;
 use super::super::machines::analyzer::DependencyAnalyzer;
 
 pub struct AnalyzeDependenciesFuture {
-    inner: Box<Future<Item=AnalyzedDependencies, Error=Error>>
+    inner: Box<dyn Future<Item=AnalyzedDependencies, Error=Error>>
 }
 
 impl AnalyzeDependenciesFuture {
diff --git a/src/engine/futures/crawl.rs b/src/engine/fut/crawl.rs
similarity index 77%
rename from src/engine/futures/crawl.rs
rename to src/engine/fut/crawl.rs
index beb199e..f5111f4 100644
--- a/src/engine/futures/crawl.rs
+++ b/src/engine/fut/crawl.rs
@@ -1,11 +1,11 @@
 use std::mem;
 
 use failure::Error;
-use futures::{Async, Future, Poll, Stream};
+use futures::{Async, Future, Poll, Stream, try_ready};
 use futures::stream::FuturesOrdered;
 use relative_path::RelativePathBuf;
 
-use ::models::repo::RepoPath;
+use crate::models::repo::RepoPath;
 
 use super::super::Engine;
 use super::super::machines::crawler::ManifestCrawler;
@@ -15,12 +15,12 @@ pub struct CrawlManifestFuture {
     repo_path: RepoPath,
     engine: Engine,
     crawler: ManifestCrawler,
-    futures: FuturesOrdered<Box<Future<Item=(RelativePathBuf, String), Error=Error>>>
+    futures: FuturesOrdered<Box<dyn Future<Item=(RelativePathBuf, String), Error=Error>>>
 }
 
 impl CrawlManifestFuture {
     pub fn new(engine: &Engine, repo_path: RepoPath, entry_point: RelativePathBuf) -> Self {
-        let future: Box<Future<Item=_, Error=_>> = Box::new(engine.retrieve_manifest_at_path(&repo_path, &entry_point)
+        let future: Box<dyn Future<Item=_, Error=_>> = Box::new(engine.retrieve_manifest_at_path(&repo_path, &entry_point)
             .map(move |contents| (entry_point, contents)));
         let engine = engine.clone();
         let crawler = ManifestCrawler::new();
@@ -46,7 +46,7 @@ impl Future for CrawlManifestFuture {
             Some((path, raw_manifest)) => {
                 let output = self.crawler.step(path, raw_manifest)?;
                 for path in output.paths_of_interest.into_iter() {
-                    let future: Box<Future<Item=_, Error=_>> = Box::new(self.engine.retrieve_manifest_at_path(&self.repo_path, &path)
+                    let future: Box<dyn Future<Item=_, Error=_>> = Box::new(self.engine.retrieve_manifest_at_path(&self.repo_path, &path)
                         .map(move |contents| (path, contents)));
                     self.futures.push(future);
                 }
diff --git a/src/engine/futures/mod.rs b/src/engine/fut/mod.rs
similarity index 100%
rename from src/engine/futures/mod.rs
rename to src/engine/fut/mod.rs
diff --git a/src/engine/machines/analyzer.rs b/src/engine/machines/analyzer.rs
index 4daca90..720d24c 100644
--- a/src/engine/machines/analyzer.rs
+++ b/src/engine/machines/analyzer.rs
@@ -3,7 +3,7 @@ use std::sync::Arc;
 use rustsec::db::AdvisoryDatabase;
 use semver::Version;
 
-use ::models::crates::{CrateDeps, CrateRelease, CrateName, AnalyzedDependency, AnalyzedDependencies};
+use crate::models::crates::{CrateDeps, CrateRelease, CrateName, AnalyzedDependency, AnalyzedDependencies};
 
 pub struct DependencyAnalyzer {
     deps: AnalyzedDependencies,
diff --git a/src/engine/machines/crawler.rs b/src/engine/machines/crawler.rs
index 111a659..7c436b9 100644
--- a/src/engine/machines/crawler.rs
+++ b/src/engine/machines/crawler.rs
@@ -4,8 +4,8 @@ use failure::Error;
 use relative_path::RelativePathBuf;
 use indexmap::IndexMap;
 
-use ::parsers::manifest::parse_manifest_toml;
-use ::models::crates::{CrateDep, CrateDeps, CrateName, CrateManifest};
+use crate::parsers::manifest::parse_manifest_toml;
+use crate::models::crates::{CrateDep, CrateDeps, CrateName, CrateManifest};
 
 pub struct ManifestCrawlerOutput {
     pub crates: IndexMap<CrateName, CrateDeps>
diff --git a/src/engine/mod.rs b/src/engine/mod.rs
index 7988c8e..30ff191 100644
--- a/src/engine/mod.rs
+++ b/src/engine/mod.rs
@@ -5,32 +5,33 @@ use std::time::{Duration, Instant};
 use cadence::prelude::*;
 use cadence::{MetricSink, NopMetricSink, StatsdClient};
 use failure::Error;
-use futures::{Future, future};
 use futures::future::join_all;
-use hyper::Client;
+use futures::{future, Future};
 use hyper::client::HttpConnector;
+use hyper::Client;
 use hyper_tls::HttpsConnector;
+use once_cell::sync::Lazy;
 use relative_path::{RelativePath, RelativePathBuf};
 use rustsec::db::AdvisoryDatabase;
 use semver::VersionReq;
 use slog::Logger;
 use tokio_service::Service;
 
+use crate::utils::cache::Cache;
+
+use crate::models::crates::{AnalyzedDependencies, CrateName, CratePath, CrateRelease};
+use crate::models::repo::{RepoPath, Repository};
+
+use crate::interactors::crates::{GetPopularCrates, QueryCrate};
+use crate::interactors::github::GetPopularRepos;
+use crate::interactors::rustsec::FetchAdvisoryDatabase;
+use crate::interactors::RetrieveFileAtPath;
+
+mod fut;
 mod machines;
-mod futures;
 
-use ::utils::cache::Cache;
-
-use ::models::repo::{Repository, RepoPath};
-use ::models::crates::{CrateName, CratePath, CrateRelease, AnalyzedDependencies};
-
-use ::interactors::crates::{QueryCrate, GetPopularCrates};
-use ::interactors::RetrieveFileAtPath;
-use ::interactors::github::GetPopularRepos;
-use ::interactors::rustsec::FetchAdvisoryDatabase;
-
-use self::futures::AnalyzeDependenciesFuture;
-use self::futures::CrawlManifestFuture;
+use self::fut::AnalyzeDependenciesFuture;
+use self::fut::CrawlManifestFuture;
 
 type HttpClient = Client<HttpsConnector<HttpConnector>>;
 
@@ -44,7 +45,7 @@ pub struct Engine {
     get_popular_crates: Arc<Cache<GetPopularCrates<HttpClient>>>,
     get_popular_repos: Arc<Cache<GetPopularRepos<HttpClient>>>,
     retrieve_file_at_path: Arc<RetrieveFileAtPath<HttpClient>>,
-    fetch_advisory_db: Arc<Cache<FetchAdvisoryDatabase<HttpClient>>>
+    fetch_advisory_db: Arc<Cache<FetchAdvisoryDatabase<HttpClient>>>,
 }
 
 impl Engine {
@@ -52,18 +53,26 @@ impl Engine {
         let metrics = StatsdClient::from_sink("engine", NopMetricSink);
 
         let query_crate = Cache::new(QueryCrate(client.clone()), Duration::from_secs(300), 500);
-        let get_popular_crates = Cache::new(GetPopularCrates(client.clone()), Duration::from_secs(10), 1);
-        let get_popular_repos = Cache::new(GetPopularRepos(client.clone()), Duration::from_secs(10), 1);
-        let fetch_advisory_db =  Cache::new(FetchAdvisoryDatabase(client.clone()), Duration::from_secs(300), 1);
+        let get_popular_crates =
+            Cache::new(GetPopularCrates(client.clone()), Duration::from_secs(10), 1);
+        let get_popular_repos =
+            Cache::new(GetPopularRepos(client.clone()), Duration::from_secs(10), 1);
+        let fetch_advisory_db = Cache::new(
+            FetchAdvisoryDatabase(client.clone()),
+            Duration::from_secs(300),
+            1,
+        );
 
         Engine {
-            client: client.clone(), logger, metrics,
+            client: client.clone(),
+            logger,
+            metrics,
 
             query_crate: Arc::new(query_crate),
             get_popular_crates: Arc::new(get_popular_crates),
             get_popular_repos: Arc::new(get_popular_repos),
             retrieve_file_at_path: Arc::new(RetrieveFileAtPath(client)),
-            fetch_advisory_db: Arc::new(fetch_advisory_db)
+            fetch_advisory_db: Arc::new(fetch_advisory_db),
         }
     }
 
@@ -74,7 +83,7 @@ impl Engine {
 
 pub struct AnalyzeDependenciesOutcome {
     pub crates: Vec<(CrateName, AnalyzedDependencies)>,
-    pub duration: Duration
+    pub duration: Duration,
 }
 
 impl AnalyzeDependenciesOutcome {
@@ -83,38 +92,42 @@ impl AnalyzeDependenciesOutcome {
     }
 
     pub fn any_insecure(&self) -> bool {
-        self.crates.iter().any(|&(_, ref deps)| deps.count_insecure() > 0)
+        self.crates
+            .iter()
+            .any(|&(_, ref deps)| deps.count_insecure() > 0)
     }
 
     pub fn outdated_ratio(&self) -> (usize, usize) {
-        self.crates.iter().fold((0, 0), |(outdated, total), &(_, ref deps)| {
-            (outdated + deps.count_outdated(), total + deps.count_total())
-        })
+        self.crates
+            .iter()
+            .fold((0, 0), |(outdated, total), &(_, ref deps)| {
+                (outdated + deps.count_outdated(), total + deps.count_total())
+            })
     }
 }
 
 impl Engine {
-    pub fn get_popular_repos(&self) ->
-        impl Future<Item=Vec<Repository>, Error=Error>
-    {
-        self.get_popular_repos.call(())
-            .from_err().map(|repos| {
-                repos.iter()
-                    .filter(|repo| !POPULAR_REPOS_BLACKLIST.contains(&repo.path))
-                    .cloned().collect()
-            })
+    pub fn get_popular_repos(&self) -> impl Future<Item = Vec<Repository>, Error = Error> {
+        self.get_popular_repos.call(()).from_err().map(|repos| {
+            repos
+                .iter()
+                .filter(|repo| !POPULAR_REPO_BLOCK_LIST.contains(&repo.path))
+                .cloned()
+                .collect()
+        })
     }
 
-     pub fn get_popular_crates(&self) ->
-        impl Future<Item=Vec<CratePath>, Error=Error>
-    {
-        self.get_popular_crates.call(())
-            .from_err().map(|crates| crates.clone())
+    pub fn get_popular_crates(&self) -> impl Future<Item = Vec<CratePath>, Error = Error> {
+        self.get_popular_crates
+            .call(())
+            .from_err()
+            .map(|crates| crates.clone())
     }
 
-    pub fn analyze_repo_dependencies(&self, repo_path: RepoPath) ->
-        impl Future<Item=AnalyzeDependenciesOutcome, Error=Error>
-    {
+    pub fn analyze_repo_dependencies(
+        &self,
+        repo_path: RepoPath,
+    ) -> impl Future<Item = AnalyzeDependenciesOutcome, Error = Error> {
         let start = Instant::now();
 
         let entry_point = RelativePath::new("/").to_relative_path_buf();
@@ -123,99 +136,125 @@ impl Engine {
         let engine = self.clone();
         manifest_future.and_then(move |manifest_output| {
             let engine_for_analyze = engine.clone();
-            let futures = manifest_output.crates.into_iter().map(move |(crate_name, deps)| {
-                let analyzed_deps_future = AnalyzeDependenciesFuture::new(engine_for_analyze.clone(), deps);
+            let futures = manifest_output
+                .crates
+                .into_iter()
+                .map(move |(crate_name, deps)| {
+                    let analyzed_deps_future =
+                        AnalyzeDependenciesFuture::new(engine_for_analyze.clone(), deps);
 
-                analyzed_deps_future.map(move |analyzed_deps| (crate_name, analyzed_deps))
-            });
+                    analyzed_deps_future.map(move |analyzed_deps| (crate_name, analyzed_deps))
+                });
 
             join_all(futures).and_then(move |crates| {
                 let duration = start.elapsed();
-                engine.metrics.time_duration_with_tags("analyze_duration", duration)
+                engine
+                    .metrics
+                    .time_duration_with_tags("analyze_duration", duration)
                     .with_tag("repo_site", repo_path.site.as_ref())
                     .with_tag("repo_qual", repo_path.qual.as_ref())
                     .with_tag("repo_name", repo_path.name.as_ref())
                     .send()?;
 
-                Ok(AnalyzeDependenciesOutcome {
-                    crates, duration
-                })
+                Ok(AnalyzeDependenciesOutcome { crates, duration })
             })
         })
     }
 
-    pub fn analyze_crate_dependencies(&self, crate_path: CratePath) ->
-        impl Future<Item=AnalyzeDependenciesOutcome, Error=Error>
-    {
+    pub fn analyze_crate_dependencies(
+        &self,
+        crate_path: CratePath,
+    ) -> impl Future<Item = AnalyzeDependenciesOutcome, Error = Error> {
         let start = Instant::now();
 
         let query_future = self.query_crate.call(crate_path.name.clone()).from_err();
 
         let engine = self.clone();
         query_future.and_then(move |query_response| {
-            match query_response.releases.iter().find(|release| release.version == crate_path.version) {
-                None => future::Either::A(future::err(format_err!("could not find crate release with version {}", crate_path.version))),
+            match query_response
+                .releases
+                .iter()
+                .find(|release| release.version == crate_path.version)
+            {
+                None => future::Either::A(future::err(format_err!(
+                    "could not find crate release with version {}",
+                    crate_path.version
+                ))),
                 Some(release) => {
-                    let analyzed_deps_future = AnalyzeDependenciesFuture::new(engine.clone(), release.deps.clone());
+                    let analyzed_deps_future =
+                        AnalyzeDependenciesFuture::new(engine.clone(), release.deps.clone());
 
                     future::Either::B(analyzed_deps_future.map(move |analyzed_deps| {
                         let crates = vec![(crate_path.name, analyzed_deps)].into_iter().collect();
                         let duration = start.elapsed();
 
-                        AnalyzeDependenciesOutcome {
-                            crates, duration
-                        }
+                        AnalyzeDependenciesOutcome { crates, duration }
                     }))
                 }
             }
         })
     }
 
-    pub fn find_latest_crate_release(&self, name: CrateName, req: VersionReq) ->
-        impl Future<Item=Option<CrateRelease>, Error=Error>
-    {
-        self.query_crate.call(name).from_err().map(move |query_response| {
-            query_response.releases.iter()
-                .filter(|release| req.matches(&release.version))
-                .max_by(|r1, r2| r1.version.cmp(&r2.version))
-                .cloned()
-        })
+    pub fn find_latest_crate_release(
+        &self,
+        name: CrateName,
+        req: VersionReq,
+    ) -> impl Future<Item = Option<CrateRelease>, Error = Error> {
+        self.query_crate
+            .call(name)
+            .from_err()
+            .map(move |query_response| {
+                query_response
+                    .releases
+                    .iter()
+                    .filter(|release| req.matches(&release.version))
+                    .max_by(|r1, r2| r1.version.cmp(&r2.version))
+                    .cloned()
+            })
     }
 
-    fn fetch_releases<I: IntoIterator<Item=CrateName>>(&self, names: I) ->
-        impl Iterator<Item=impl Future<Item=Vec<CrateRelease>, Error=Error>>
-    {
+    fn fetch_releases<I: IntoIterator<Item = CrateName>>(
+        &self,
+        names: I,
+    ) -> impl Iterator<Item = impl Future<Item = Vec<CrateRelease>, Error = Error>> {
         let engine = self.clone();
         names.into_iter().map(move |name| {
-            engine.query_crate.call(name)
+            engine
+                .query_crate
+                .call(name)
                 .from_err()
                 .map(|resp| resp.releases.clone())
         })
     }
 
-    fn retrieve_manifest_at_path(&self, repo_path: &RepoPath, path: &RelativePathBuf) ->
-        impl Future<Item=String, Error=Error>
-    {
+    fn retrieve_manifest_at_path(
+        &self,
+        repo_path: &RepoPath,
+        path: &RelativePathBuf,
+    ) -> impl Future<Item = String, Error = Error> {
         let manifest_path = path.join(RelativePath::new("Cargo.toml"));
-        self.retrieve_file_at_path.call((repo_path.clone(), manifest_path))
+        self.retrieve_file_at_path
+            .call((repo_path.clone(), manifest_path))
     }
 
-    fn fetch_advisory_db(&self) ->
-        impl Future<Item=Arc<AdvisoryDatabase>, Error=Error>
-    {
-        self.fetch_advisory_db.call(()).from_err().map(|db| db.clone())
+    fn fetch_advisory_db(&self) -> impl Future<Item = Arc<AdvisoryDatabase>, Error = Error> {
+        self.fetch_advisory_db
+            .call(())
+            .from_err()
+            .map(|db| db.clone())
     }
 }
 
-lazy_static! {
-    static ref POPULAR_REPOS_BLACKLIST: HashSet<RepoPath> = {
-        vec![
-            RepoPath::from_parts("github", "rust-lang", "rust"),
-            RepoPath::from_parts("github", "google", "xi-editor"),
-            RepoPath::from_parts("github", "lk-geimfari", "awesomo"),
-            RepoPath::from_parts("github", "redox-os", "tfs"),
-            RepoPath::from_parts("github", "carols10cents", "rustlings"),
-            RepoPath::from_parts("github", "rust-unofficial", "awesome-rust")
-        ].into_iter().collect::<Result<HashSet<_>, _>>().unwrap()
-    };
-}
+static POPULAR_REPO_BLOCK_LIST: Lazy<HashSet<RepoPath>> = Lazy::new(|| {
+    vec![
+        RepoPath::from_parts("github", "rust-lang", "rust"),
+        RepoPath::from_parts("github", "google", "xi-editor"),
+        RepoPath::from_parts("github", "lk-geimfari", "awesomo"),
+        RepoPath::from_parts("github", "redox-os", "tfs"),
+        RepoPath::from_parts("github", "carols10cents", "rustlings"),
+        RepoPath::from_parts("github", "rust-unofficial", "awesome-rust"),
+    ]
+    .into_iter()
+    .collect::<Result<HashSet<_>, _>>()
+    .unwrap()
+});
diff --git a/src/interactors/bitbucket.rs b/src/interactors/bitbucket.rs
index d2f8401..00bd678 100644
--- a/src/interactors/bitbucket.rs
+++ b/src/interactors/bitbucket.rs
@@ -2,7 +2,7 @@ use failure::Error;
 use hyper::Uri;
 use relative_path::RelativePathBuf;
 
-use ::models::repo::RepoPath;
+use crate::models::repo::RepoPath;
 
 const BITBUCKET_USER_CONTENT_BASE_URI: &'static str = "https://bitbucket.org";
 
@@ -15,4 +15,3 @@ pub fn get_manifest_uri(repo_path: &RepoPath, path: &RelativePathBuf) -> Result<
         path_str
     ).parse::<Uri>()?)
 }
-
diff --git a/src/interactors/crates.rs b/src/interactors/crates.rs
index 17c06e6..7465336 100644
--- a/src/interactors/crates.rs
+++ b/src/interactors/crates.rs
@@ -7,7 +7,7 @@ use tokio_service::Service;
 use semver::{Version, VersionReq};
 use serde_json;
 
-use ::models::crates::{CrateName, CrateRelease, CrateDeps, CrateDep, CratePath};
+use crate::models::crates::{CrateName, CrateRelease, CrateDeps, CrateDep, CratePath};
 
 const CRATES_INDEX_BASE_URI: &str = "https://raw.githubusercontent.com/rust-lang/crates.io-index";
 const CRATES_API_BASE_URI: &str = "https://crates.io/api/v1";
@@ -68,7 +68,7 @@ impl<S> Service for QueryCrate<S>
     type Request = CrateName;
     type Response = QueryCrateResponse;
     type Error = Error;
-    type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
+    type Future = Box<dyn Future<Item=Self::Response, Error=Self::Error>>;
 
     fn call(&self,  crate_name: CrateName) -> Self::Future {
         let lower_name = crate_name.as_ref().to_lowercase();
@@ -137,7 +137,7 @@ impl<S> Service for GetPopularCrates<S>
     type Request = ();
     type Response = Vec<CratePath>;
     type Error = Error;
-    type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
+    type Future = Box<dyn Future<Item=Self::Response, Error=Self::Error>>;
 
     fn call(&self, _req: ()) -> Self::Future {
         let service = self.0.clone();
diff --git a/src/interactors/github.rs b/src/interactors/github.rs
index 8252ac0..9419d17 100644
--- a/src/interactors/github.rs
+++ b/src/interactors/github.rs
@@ -6,7 +6,7 @@ use relative_path::RelativePathBuf;
 use tokio_service::Service;
 use serde_json;
 
-use ::models::repo::{Repository, RepoPath};
+use crate::models::repo::{Repository, RepoPath};
 
 const GITHUB_API_BASE_URI: &'static str = "https://api.github.com";
 const GITHUB_USER_CONTENT_BASE_URI: &'static str = "https://raw.githubusercontent.com";
@@ -48,7 +48,7 @@ impl<S> Service for GetPopularRepos<S>
     type Request = ();
     type Response = Vec<Repository>;
     type Error = Error;
-    type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
+    type Future = Box<dyn Future<Item=Self::Response, Error=Self::Error>>;
 
     fn call(&self, _req: ()) -> Self::Future {
         let uri = try_future_box!(format!("{}/search/repositories?q=language:rust&sort=stars", GITHUB_API_BASE_URI)
diff --git a/src/interactors/gitlab.rs b/src/interactors/gitlab.rs
index 25e5eac..e2c0477 100644
--- a/src/interactors/gitlab.rs
+++ b/src/interactors/gitlab.rs
@@ -2,7 +2,7 @@ use hyper::Uri;
 use relative_path::RelativePathBuf;
 use failure::Error;
 
-use ::models::repo::RepoPath;
+use crate::models::repo::RepoPath;
 
 const GITLAB_USER_CONTENT_BASE_URI: &'static str = "https://gitlab.com";
 
diff --git a/src/interactors/mod.rs b/src/interactors/mod.rs
index bf4288d..0c84d74 100644
--- a/src/interactors/mod.rs
+++ b/src/interactors/mod.rs
@@ -4,7 +4,7 @@ use hyper::{Error as HyperError, Method, Request, Response};
 use relative_path::RelativePathBuf;
 use tokio_service::Service;
 
-use ::models::repo::{RepoSite, RepoPath};
+use crate::models::repo::{RepoSite, RepoPath};
 
 pub mod bitbucket;
 pub mod crates;
@@ -22,7 +22,7 @@ impl<S> Service for RetrieveFileAtPath<S>
     type Request = (RepoPath, RelativePathBuf);
     type Response = String;
     type Error = Error;
-    type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
+    type Future = Box<dyn Future<Item=Self::Response, Error=Self::Error>>;
 
     fn call(&self, req: Self::Request) -> Self::Future {
         let (repo_path, path) = req;
@@ -54,5 +54,3 @@ impl<S> Service for RetrieveFileAtPath<S>
         }))
     }
 }
-
-
diff --git a/src/interactors/rustsec.rs b/src/interactors/rustsec.rs
index b651c15..1622769 100644
--- a/src/interactors/rustsec.rs
+++ b/src/interactors/rustsec.rs
@@ -18,7 +18,7 @@ impl<S> Service for FetchAdvisoryDatabase<S>
     type Request = ();
     type Response = Arc<AdvisoryDatabase>;
     type Error = Error;
-    type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
+    type Future = Box<dyn Future<Item=Self::Response, Error=Self::Error>>;
 
     fn call(&self, _req: ()) -> Self::Future {
         let service = self.0.clone();
diff --git a/src/main.rs b/src/main.rs
index 73e5a94..c09076f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,43 +1,17 @@
-#![allow(bare_trait_objects)]
+#![deny(bare_trait_objects)]
+#![allow(unused)]
 
-extern crate badge;
-extern crate cadence;
 #[macro_use]
 extern crate failure;
 #[macro_use]
-extern crate futures;
-extern crate hyper;
-extern crate hyper_tls;
-extern crate indexmap;
-#[macro_use]
 extern crate lazy_static;
-extern crate lru_cache;
-extern crate maud;
-extern crate relative_path;
-extern crate route_recognizer;
-extern crate rustsec;
-extern crate semver;
 #[macro_use]
 extern crate serde_derive;
-extern crate serde;
-extern crate serde_json;
-extern crate shared_failure;
 #[macro_use]
 extern crate slog;
-extern crate slog_json;
-extern crate tokio_core;
-extern crate tokio_service;
-extern crate toml;
 #[macro_use]
 extern crate try_future;
 
-mod engine;
-mod interactors;
-mod models;
-mod parsers;
-mod server;
-mod utils;
-
 use std::env;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr, UdpSocket};
 use std::sync::Mutex;
@@ -50,6 +24,13 @@ use hyper_tls::HttpsConnector;
 use slog::Drain;
 use tokio_core::reactor::Core;
 
+mod engine;
+mod interactors;
+mod models;
+mod parsers;
+mod server;
+mod utils;
+
 use self::engine::Engine;
 use self::server::Server;
 
diff --git a/src/parsers/manifest.rs b/src/parsers/manifest.rs
index ab2e390..46dc9ad 100644
--- a/src/parsers/manifest.rs
+++ b/src/parsers/manifest.rs
@@ -4,7 +4,7 @@ use relative_path::RelativePathBuf;
 use semver::VersionReq;
 use toml;
 
-use ::models::crates::{CrateName, CrateDep, CrateDeps, CrateManifest};
+use crate::models::crates::{CrateName, CrateDep, CrateDeps, CrateManifest};
 
 #[derive(Serialize, Deserialize, Debug)]
 struct CargoTomlComplexDependency {
diff --git a/src/server/mod.rs b/src/server/mod.rs
index 9d52d56..e9ccc7d 100644
--- a/src/server/mod.rs
+++ b/src/server/mod.rs
@@ -12,10 +12,10 @@ use tokio_service::Service;
 mod assets;
 mod views;
 
-use ::engine::{Engine, AnalyzeDependenciesOutcome};
-use ::models::crates::{CrateName, CratePath};
-use ::models::repo::RepoPath;
-use ::models::SubjectPath;
+use crate::engine::{Engine, AnalyzeDependenciesOutcome};
+use crate::models::crates::{CrateName, CratePath};
+use crate::models::repo::RepoPath;
+use crate::models::SubjectPath;
 
 #[derive(Clone, Copy, PartialEq)]
 enum StatusFormat {
@@ -68,7 +68,7 @@ impl Service for Server {
     type Request = Request;
     type Response = Response;
     type Error = HyperError;
-    type Future = Box<Future<Item=Response, Error=HyperError>>;
+    type Future = Box<dyn Future<Item=Response, Error=HyperError>>;
 
     fn call(&self, req: Request) -> Self::Future {
         let logger = self.logger.new(o!("http_path" => req.uri().path().to_owned()));
diff --git a/src/server/views/badge.rs b/src/server/views/badge.rs
index cb9139c..3f6f68a 100644
--- a/src/server/views/badge.rs
+++ b/src/server/views/badge.rs
@@ -2,7 +2,7 @@ use badge::{Badge, BadgeOptions};
 use hyper::Response;
 use hyper::header::ContentType;
 
-use ::engine::AnalyzeDependenciesOutcome;
+use crate::engine::AnalyzeDependenciesOutcome;
 
 pub fn badge(analysis_outcome: Option<&AnalyzeDependenciesOutcome>) -> Badge {
     let opts = match analysis_outcome {
diff --git a/src/server/views/html/index.rs b/src/server/views/html/index.rs
index 04c65b7..8e2aba4 100644
--- a/src/server/views/html/index.rs
+++ b/src/server/views/html/index.rs
@@ -1,8 +1,8 @@
 use hyper::Response;
 use maud::{Markup, html};
 
-use ::models::repo::Repository;
-use ::models::crates::CratePath;
+use crate::models::repo::Repository;
+use crate::models::crates::CratePath;
 
 fn popular_table(popular_repos: Vec<Repository>, popular_crates: Vec<CratePath>) -> Markup {
     html! {
diff --git a/src/server/views/html/status.rs b/src/server/views/html/status.rs
index ff55e27..c64a87b 100644
--- a/src/server/views/html/status.rs
+++ b/src/server/views/html/status.rs
@@ -2,10 +2,10 @@ use hyper::Response;
 use maud::{Markup, html};
 use indexmap::IndexMap;
 
-use ::engine::AnalyzeDependenciesOutcome;
-use ::models::crates::{CrateName, AnalyzedDependency, AnalyzedDependencies};
-use ::models::SubjectPath;
-use ::models::repo::RepoSite;
+use crate::engine::AnalyzeDependenciesOutcome;
+use crate::models::crates::{CrateName, AnalyzedDependency, AnalyzedDependencies};
+use crate::models::SubjectPath;
+use crate::models::repo::RepoSite;
 
 use super::super::badge;
 
diff --git a/src/utils/cache.rs b/src/utils/cache.rs
index a002159..d09ebf3 100644
--- a/src/utils/cache.rs
+++ b/src/utils/cache.rs
@@ -88,7 +88,7 @@ impl<F: Future<Error=Error>> Future for Cached<F> {
     fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
         self.0.poll()
             .map_err(|err| (*err).clone())
-            .map(|async| async.map(CachedItem))
+            .map(|_async| _async.map(CachedItem))
     }
 }