first pass of merging in warp (doesn't build)

docker/agent-dev/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:latest
+FROM ubuntu:24.04
 
 ENV RUSTUP_HOME=/usr/local/rustup
 ENV CARGO_HOME=/usr/local/cargo
@@ -22,7 +22,7 @@ RUN set -eux; \
     ca-certificates \
     xvfb
 
-# Install rustup. It will download the pinned version in our rust-toolchain.toml as needed.
+# Install rustup. The pinned Rust toolchain is installed below from rust-toolchain.toml.
 RUN set -eux; \
   curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path --profile minimal; \
   chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
@@ -70,7 +70,10 @@ RUN set -eux; \
 
 # Ensure the correct Rust toolchain is installed
 COPY ./rust-toolchain.toml ./setup/rust-toolchain.toml
-RUN cd ./setup && rustup toolchain install
+RUN set -eux; \
+  cd ./setup; \
+  rustup toolchain install; \
+  rustup default "$(rustup show active-toolchain | cut -d' ' -f1)"
 
 # Install all dependencies needed to build, run, and test Warp
 COPY ./script ./setup/script

docker/linux-dev/README.md

@@ -14,7 +14,7 @@ You'll need to install:
 
 ## Setup
 
-You'll run all of these commands from the `warp-internal` repository's root directory.
+You'll run all of these commands from the repository's root directory.
 
 First, build the docker container image:
 
@@ -27,7 +27,7 @@ Next, run the container:
 
 ```
 # The path to the source code directory that you want to mount in the
-# container. This can be the `warp-internal` repository or some parent
+# container. This can be the `warp` repository or some parent
 # directory of your choice.
 LOCAL_PATH="/Users/$USER/src"