Configure profile.release

.travis.yml

@@ -15,7 +15,10 @@ script:
   - ./bazel test --test_output=errors //test
 
 before_deploy:
+  # We use cargo for the release, because I couldn't figure out how to tell
+  # rules_rust to pass `-C lto=true` to all dependencies.
   - cargo install --path .
+  - cd "$HOME/.cargo/bin" && strip ./as-tree
   - cd "$HOME/.cargo/bin" && zip "as-tree-${TRAVIS_TAG}-${TRAVIS_OS_NAME}.zip" ./as-tree
 
 deploy:

Cargo.toml

@@ -15,6 +15,12 @@ ansi_term = "0.12"
 lscolors = "0.7"
 atty = "0.2"
 
+# These two options plus strip'ing the binary was measured to cut the size by
+# about 173KB (-44%)
+[profile.release]
+lto = true
+panic = "abort"
+
 [raze]
 # The WORKSPACE relative path to the Cargo.toml working directory.
 workspace_path = "//third_party/cargo"