[v8 140.0.0] Downloading https://storage.googleapis.com/chromium-browser-clang/Linux_x64/rust-toolchain-22be76b7e259f27bf3e55eb931f354cd8b69d55f-3-llvmorg-21-init-16348-gbd809ffb.tar.xz... Done.
  [v8 140.0.0] clang_base_path (system): /home/linuxbrew/.linuxbrew/opt/llvm
  [v8 140.0.0] cargo:warning=Not using sccache or ccache
  [v8 140.0.0] The current directory is /home/linuxbrew/.cache/Homebrew/cargo_cache/registry/src/index.crates.io-1949cf8c6b5b557f/v8-140.0.0
  [v8 140.0.0] gn gen --root=/home/linuxbrew/.cache/Homebrew/cargo_cache/registry/src/index.crates.io-1949cf8c6b5b557f/v8-140.0.0 /var/tmp/deno-20250910-8967-4e7gqf/deno/target/release/gn_out
  [v8 140.0.0] ERROR at //build/config/rust.gni:378:17: Could not read file.
  [v8 140.0.0]       read_file(_known_rust_target_triples_filepath, "list lines")
  [v8 140.0.0]                 ^----------------------------------
  [v8 140.0.0] I resolved this to "/home/linuxbrew/.cache/Homebrew/cargo_cache/registry/src/index.crates.io-1949cf8c6b5b557f/v8-140.0.0/build/rust/known-target-triples.txt".
  [v8 140.0.0] See //build/config/clang/BUILD.gn:6:1: whence it was imported.
  [v8 140.0.0] import("//build/config/rust.gni")
  [v8 140.0.0] ^-------------------------------
  [v8 140.0.0] See //build/config/BUILDCONFIG.gn:425:5: which caused the file to be included.
  [v8 140.0.0]     "//build/config/clang:unsafe_buffers",
  [v8 140.0.0]     ^------------------------------------
  [v8 140.0.0] 
  [v8 140.0.0] thread 'main' panicked at /home/linuxbrew/.cache/Homebrew/cargo_cache/registry/src/index.crates.io-1949cf8c6b5b557f/v8-140.0.0/build.rs:966:3:
  [v8 140.0.0] assertion failed: Command::new(gn()).arg(format!("--root={}",
  [v8 140.0.0]                                                     dirs.root.display())).arg(format!("--script-executable={}",
  [v8 140.0.0]                                                 python())).arg("gen").arg(&gn_out_dir).arg("--ide=json").arg("--args=".to_owned()
  [v8 140.0.0]                                 +
  [v8 140.0.0]                                 &args).stdout(Stdio::inherit()).stderr(Stdio::inherit()).envs(env::vars()).status().expect("Could not run `gn`").success()
  [v8 140.0.0] note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
  warning: v8@140.0.0: Not using sccache or ccache
  error: failed to run custom build command for `v8 v140.0.0`