diff --git a/.travis.yml b/.travis.yml
index 526648e..709f428 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,10 +6,11 @@ rust:
   - nightly
 
 env:
-  - TEST_COMMAND=test FEATURES='yolocrypto'
-  - TEST_COMMAND=test FEATURES='yolocrypto nightly'
-  - TEST_COMMAND=bench FEATURES='yolocrypto bench'
-  - TEST_COMMAND=bench FEATURES='yolocrypto nightly bench'
+  - TEST_COMMAND=test FEATURES=--features="yolocrypto"
+  - TEST_COMMAND=test FEATURES=--features="yolocrypto nightly"
+  - TEST_COMMAND=bench FEATURES=--features="yolocrypto bench"
+  - TEST_COMMAND=bench FEATURES=--features="yolocrypto nightly bench"
+  - TEST_COMMAND=build FEATURES=--no-default-features
 
 matrix:
   exclude:
@@ -18,18 +19,23 @@ matrix:
     # run benchmarks, which causes dalek not to build on stable.  See
     # https://github.com/isislovecruft/curve25519-dalek/pull/38#issuecomment-286027562
     - rust: stable
-      env: TEST_COMMAND=bench FEATURES='yolocrypto bench'
+      env: TEST_COMMAND=bench FEATURES=--features="yolocrypto bench"
     - rust: beta
-      env: TEST_COMMAND=bench FEATURES='yolocrypto bench'
+      env: TEST_COMMAND=bench FEATURES=--features="yolocrypto bench"
     - rust: stable
-      env: TEST_COMMAND=bench FEATURES='yolocrypto nightly bench'
+      env: TEST_COMMAND=bench FEATURES=--features="yolocrypto nightly bench"
     - rust: beta
-      env: TEST_COMMAND=bench FEATURES='yolocrypto nightly bench'
+      env: TEST_COMMAND=bench FEATURES=--features="yolocrypto nightly bench"
     # Test nightly features, such as radix_51, only on nightly.
     - rust: stable
-      env: TEST_COMMAND=test FEATURES='yolocrypto nightly'
+      env: TEST_COMMAND=test FEATURES=--features="yolocrypto nightly"
     - rust: beta
-      env: TEST_COMMAND=test FEATURES='yolocrypto nightly'
+      env: TEST_COMMAND=test FEATURES=--features="yolocrypto nightly"
+    # Test no_std only on nightly.
+    - rust: stable
+      env: TEST_COMMAND=build FEATURES=--no-default-features
+    - rust: beta
+      env: TEST_COMMAND=build FEATURES=--no-default-features
 
 script:
-  - cargo $TEST_COMMAND --features="$FEATURES"
+  - cargo $TEST_COMMAND $FEATURES
diff --git a/Cargo.toml b/Cargo.toml
index 484a117..1e06fd9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "curve25519-dalek"
-version = "0.7.0"
+version = "0.7.1"
 authors = ["Isis Lovecruft <isis@patternsinthevoid.net>",
            "Henry de Valence <hdevalence@hdevalence.ca>"]
 readme = "README.md"
diff --git a/README.md b/README.md
index 16bad4e..ecd519f 100644
--- a/README.md
+++ b/README.md
@@ -57,12 +57,7 @@ fast.
 ## TODO
 
 * Implement hashing to a point on the curve (Elligator).
-* Add conversion to Montgomery form and rework compressed point types.
-* Maybe implement Mike Hamburg's Decaf point compression format, so that
-  users can be guaranteed to be in a prime-order subgroup and not have to
-  worry about cofactors.
-* Review finite field arithmetic.
-* Review scalar arithmetic.
-* Review addition formulas.
-* Proofread mathematics in documentation.
 * Maybe use serde for serialization.
+* Make a new `mask` type in `subtle.rs` and return that instead of `u8`s.
+* Implement all utilities in Golang's `crypto/subtle` package, and
+  move the module to its own crate.
diff --git a/src/curve.rs b/src/curve.rs
index 46358ad..552e736 100644
--- a/src/curve.rs
+++ b/src/curve.rs
@@ -77,6 +77,9 @@
 // affine and projective cakes and eat both of them too.
 #![allow(non_snake_case)]
 
+#[cfg(not(feature = "std"))]
+use collections::Vec;
+
 use core::fmt::Debug;
 use core::iter::Iterator;
 use core::ops::{Add, Sub, Neg};