2 files changed, 4 insertions, 1 deletions

diff --git a/crates/ra_tt/Cargo.toml b/crates/ra_tt/Cargo.toml
index 357a5c5a3..02accd404 100644
--- a/crates/ra_tt/Cargo.toml
+++ b/crates/ra_tt/Cargo.toml
@@ -5,5 +5,4 @@ version = "0.1.0"
 authors = ["Aleksey Kladov <[email protected]>"]
 
 [dependencies]
-rustc-hash = "1.0.0"
 smol_str = "0.1.9"
diff --git a/crates/ra_tt/src/lib.rs b/crates/ra_tt/src/lib.rs
index d7c3c62bf..043417abc 100644
--- a/crates/ra_tt/src/lib.rs
+++ b/crates/ra_tt/src/lib.rs
@@ -1,3 +1,7 @@
+/// `tt` crate defines a `TokenTree` datastructure: this is the interface (both
+/// input and output) of macros. It closely mirrors `proc_macro` crate's
+/// `TokenTree`.
+
 macro_rules! impl_froms {
     ($e:ident: $($v:ident), *) => {
         $(