diff --git a/Cargo.toml b/Cargo.toml
index 8a5f4825..0e0dee55 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,6 @@ blake2-rfc = "^0"
 brotli2 = "^0"
 clap = "~2.19"
 clippy = {version = "*", optional = true}
-conserve_testsupport = {path = "testsupport", version = "0.3.0"}
 error-chain = "~0.7.1"
 isatty = "0.1"
 log = "^0"
@@ -33,6 +32,3 @@ time = "^0"
 default = []
 sync = []  # Flush changes to disk.
 bench = []  # Build benchmarks (nightly compiler only)
-
-[workspace]
-members = ["testsupport"]
diff --git a/src/backup.rs b/src/backup.rs
index ada73f20..027c15ef 100644
--- a/src/backup.rs
+++ b/src/backup.rs
@@ -115,8 +115,7 @@ mod tests {
     use super::backup;
     use super::super::index;
     use super::super::report::Report;
-    use super::super::testfixtures::{ScratchArchive};
-    use conserve_testsupport::TreeFixture;
+    use super::super::testfixtures::{ScratchArchive, TreeFixture};
 
     #[cfg(unix)]
     #[test]
diff --git a/src/lib.rs b/src/lib.rs
index f608ab93..26d214c4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -28,8 +28,6 @@ extern crate time;
 #[cfg(feature="bench")]
 extern crate test;
 
-extern crate conserve_testsupport;
-
 // Conserve implementation modules.
 mod apath;
 mod archive;
diff --git a/src/restore.rs b/src/restore.rs
index 932679e4..b526d00a 100644
--- a/src/restore.rs
+++ b/src/restore.rs
@@ -135,7 +135,7 @@ mod tests {
     use super::super::backup::backup;
     use super::super::report::Report;
     use super::super::testfixtures::ScratchArchive;
-    use conserve_testsupport::TreeFixture;
+    use super::super::testfixtures::TreeFixture;
 
     fn setup_archive() -> ScratchArchive {
         let af = ScratchArchive::new();
diff --git a/src/sources.rs b/src/sources.rs
index ef58b6c8..3ab0eeb9 100644
--- a/src/sources.rs
+++ b/src/sources.rs
@@ -202,7 +202,7 @@ mod tests {
 
     use super::*;
     use super::super::report::Report;
-    use conserve_testsupport::TreeFixture;
+    use super::super::testfixtures::TreeFixture;
 
     #[test]
     fn simple_directory() {
diff --git a/src/testfixtures.rs b/src/testfixtures.rs
index 4f182560..f5eb8137 100644
--- a/src/testfixtures.rs
+++ b/src/testfixtures.rs
@@ -7,12 +7,14 @@
 /// Fixtures that create directories will be automatically deleted when the object
 /// is deleted.
 
+use std::fs;
+use std::io::Write;
 use std::ops::Deref;
-use std::path::{Path};
+use std::path::{Path, PathBuf};
 
 use tempdir;
 
-use super::{Archive};
+use super::Archive;
 
 /// A temporary archive.
 pub struct ScratchArchive {
@@ -49,3 +51,55 @@ impl Deref for ScratchArchive {
         &self.archive
     }
 }
+
+
+/// A temporary tree for running a test.
+///
+/// Created in a temporary directory and automatically disposed when done.
+pub struct TreeFixture {
+    pub root: PathBuf,
+    _tempdir: tempdir::TempDir, // held only for cleanup
+}
+
+impl TreeFixture {
+    pub fn new() -> TreeFixture {
+        let tempdir = tempdir::TempDir::new("conserve_TreeFixture").unwrap();
+        let root = tempdir.path().to_path_buf();
+        TreeFixture {
+            _tempdir: tempdir,
+            root: root,
+        }
+    }
+
+    pub fn path(self: &TreeFixture) -> &Path {
+        &self.root
+    }
+
+    pub fn create_file(self: &TreeFixture, relative_path: &str) {
+        let full_path = self.root.join(relative_path);
+        let mut f = fs::File::create(&full_path).unwrap();
+        f.write_all(b"contents").unwrap();
+    }
+
+    pub fn create_dir(self: &TreeFixture, relative_path: &str) {
+        fs::create_dir(self.root.join(relative_path)).unwrap();
+    }
+
+    #[cfg(unix)]
+    pub fn create_symlink(self: &TreeFixture, relative_path: &str, target: &str) {
+        use std::os::unix::fs as unix_fs;
+
+        unix_fs::symlink(target, self.root.join(relative_path)).unwrap();
+    }
+
+    /// Symlinks are just not present on Windows.
+    #[cfg(windows)]
+    pub fn create_symlink(self: &TreeFixture, _relative_path: &str, _target: &str) {
+    }
+}
+
+impl Default for TreeFixture {
+    fn default() -> Self {
+        Self::new()
+    }
+}
diff --git a/tests/blackbox.rs b/tests/blackbox.rs
index 2f455943..c6b7e260 100644
--- a/tests/blackbox.rs
+++ b/tests/blackbox.rs
@@ -4,7 +4,6 @@
 /// Run conserve CLI as a subprocess and test it.
 
 
-extern crate conserve_testsupport;
 #[macro_use]
 extern crate spectral;
 extern crate tempdir;
@@ -18,8 +17,8 @@ use std::str;
 
 use spectral::prelude::*;
 
-use conserve_testsupport::TreeFixture;
-
+extern crate conserve;
+use conserve::testfixtures::TreeFixture;
 
 
 #[test]
diff --git a/tests/integration.rs b/tests/integration.rs
index f9ec404f..a5a9cfbe 100644
--- a/tests/integration.rs
+++ b/tests/integration.rs
@@ -3,14 +3,14 @@
 extern crate tempdir;
 
 extern crate conserve;
-extern crate conserve_testsupport;
 
 use conserve::backup;
 use conserve::index;
 use conserve::report::Report;
 use conserve::Restore;
 use conserve::testfixtures::{ScratchArchive};
-use conserve_testsupport::TreeFixture;
+use conserve::testfixtures::TreeFixture;
+
 
 #[test]
 pub fn simple_backup() {
diff --git a/testsupport/Cargo.lock b/testsupport/Cargo.lock
deleted file mode 100644
index 001b3fa8..00000000
--- a/testsupport/Cargo.lock
+++ /dev/null
@@ -1,4 +0,0 @@
-[root]
-name = "testsupport"
-version = "0.1.0"
-
diff --git a/testsupport/Cargo.toml b/testsupport/Cargo.toml
deleted file mode 100644
index 4dc9768a..00000000
--- a/testsupport/Cargo.toml
+++ /dev/null
@@ -1,7 +0,0 @@
-[package]
-name = "conserve_testsupport"
-version = "0.3.0"
-authors = ["Martin Pool <mbp@sourcefrog.net>"]
-
-[dependencies]
-tempdir = "^0"
diff --git a/testsupport/src/lib.rs b/testsupport/src/lib.rs
deleted file mode 100644
index d9453f5a..00000000
--- a/testsupport/src/lib.rs
+++ /dev/null
@@ -1,65 +0,0 @@
-// Conserve backup system.
-// Copyright 2016 Martin Pool.
-
-
-/// Utilities to set up test environments.
-///
-/// Fixtures that create directories will be automatically deleted when the object
-/// is deleted.
-
-extern crate tempdir;
-
-use std::fs;
-use std::io::Write;
-use std::path::{Path, PathBuf};
-
-/// A temporary tree for running a test.
-///
-/// Created in a temporary directory and automatically disposed when done.
-pub struct TreeFixture {
-    pub root: PathBuf,
-    _tempdir: tempdir::TempDir, // held only for cleanup
-}
-
-impl TreeFixture {
-    pub fn new() -> TreeFixture {
-        let tempdir = tempdir::TempDir::new("conserve_TreeFixture").unwrap();
-        let root = tempdir.path().to_path_buf();
-        TreeFixture {
-            _tempdir: tempdir,
-            root: root,
-        }
-    }
-
-    pub fn path(self: &TreeFixture) -> &Path {
-        &self.root
-    }
-
-    pub fn create_file(self: &TreeFixture, relative_path: &str) {
-        let full_path = self.root.join(relative_path);
-        let mut f = fs::File::create(&full_path).unwrap();
-        f.write_all(b"contents").unwrap();
-    }
-
-    pub fn create_dir(self: &TreeFixture, relative_path: &str) {
-        fs::create_dir(self.root.join(relative_path)).unwrap();
-    }
-
-    #[cfg(unix)]
-    pub fn create_symlink(self: &TreeFixture, relative_path: &str, target: &str) {
-        use std::os::unix::fs as unix_fs;
-
-        unix_fs::symlink(target, self.root.join(relative_path)).unwrap();
-    }
-
-    /// Symlinks are just not present on Windows.
-    #[cfg(windows)]
-    pub fn create_symlink(self: &TreeFixture, _relative_path: &str, _target: &str) {
-    }
-}
-
-impl Default for TreeFixture {
-    fn default() -> Self {
-        Self::new()
-    }
-}