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bazel/wasm: upgrade wasmtime from 32.0.0 to 42.0.2 #30250

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bazel/wasm: upgrade wasmtime from 32.0.0 to 42.0.2 #30250

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8 changes: 8 additions & 0 deletions .bazelrc
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Expand Up @@ -127,6 +127,14 @@ build:san-all --//bazel:sanitizer_mode=all
build:san-all --copt=-fsanitize=address,undefined,vptr,function,alignment
build:san-all --linkopt=-fsanitize=address,undefined,vptr,function,alignment

# Use rules_rust's Rust-side allocator_library that defines the
# mangled `__rustc::*` allocator shim symbols (rust_alloc,
# rust_dealloc, etc.). The default cc_allocator_library predates the
# allocator-symbol mangling in rustc 1.87+ and leaves those symbols
# undefined when a Rust staticlib is linked into a cc_binary via
# cc_common.link. See bazelbuild/rules_rust#3459.
build --@rules_rust//rust/settings:experimental_use_allocator_libraries_with_mangled_symbols=True

# LTO mixin: enable LTO for C++ and Rust. Usually mixed in with
# PGO + release, but should work with any.
build:lto --copt -flto=thin
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13 changes: 11 additions & 2 deletions MODULE.bazel
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Expand Up @@ -52,7 +52,7 @@ bazel_dep(name = "rules_go", version = "0.59.0")
bazel_dep(name = "rules_pkg", version = "1.0.1")
bazel_dep(name = "rules_proto", version = "7.1.0")
bazel_dep(name = "rules_python", version = "1.6.0")
bazel_dep(name = "rules_rust", version = "0.60.0")
bazel_dep(name = "rules_rust", version = "0.70.0")
bazel_dep(name = "snappy", version = "1.2.1")
bazel_dep(name = "yaml-cpp", version = "0.8.0")
bazel_dep(name = "zlib", version = "1.3.1.bcr.6")
Expand Down Expand Up @@ -350,7 +350,16 @@ rust.toolchain(
"aarch64-unknown-linux-gnu",
"x86_64-unknown-linux-gnu",
],
versions = ["1.86.0"],
# Prefer our S3 mirror for the rustc tarball (static.rust-lang.org is
# frequently slow from some POPs). Only the `rustc-*` component is
# mirrored; other components (rust-std, cargo, clippy, rustfmt,
# llvm-tools, rust-src) 404 on the mirror and fall through to the
# upstream URL automatically.
urls = [
"https://vectorized-public.s3.us-west-2.amazonaws.com/dependencies/{}.tar.xz",
"https://static.rust-lang.org/dist/{}.tar.xz",
],
versions = ["1.91.0"],
)
Comment on lines 350 to 363
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Copilot AI Apr 22, 2026

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//bazel/thirdparty:empty_alloc is added as part of the allocator-shim workaround, but this rust.toolchain(...) registration doesn’t reference it (and a repo-wide search finds no references). If the intent is to override the toolchain’s allocator library to prevent double-linking, wire empty_alloc into the toolchain configuration here; otherwise consider removing the unused target/comment.

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use_repo(rust, "rust_toolchains")

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1,296 changes: 553 additions & 743 deletions MODULE.bazel.lock
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