content: # Copyright 2025 Google LLC
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  #
  ################################################################################
  
  FROM gcr.io/oss-fuzz-base/base-builder:ubuntu-20-04
  
  ENV CARGO_HOME=/rust
  ENV RUSTUP_HOME=/rust/rustup
  ENV PATH=$PATH:/rust/bin
  # Set up custom environment variable for source code copy for coverage reports
  ENV OSSFUZZ_RUSTPATH /rust
  
  # Force rustup to ignore `rust-toolchain` and `rust-toolchain.toml` files by
  # manually specifying what toolchain to use. Note that this environment variable
  # is additionally used by `install_rust.sh` as the toolchain to install.
  # cf https://rust-lang.github.io/rustup/overrides.html
  ENV RUSTUP_TOOLCHAIN nightly-2024-07-12
  
  # Configure the linker used by default for x86_64 linux to be `clang` instead of
  # rustc's default of `cc` which is able to find custom-built libraries like
  # `libc++` by default more easily.
  ENV CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER clang
  
  RUN install_rust.sh
  