chore: checkpoint before Python removal

vendor/libm/Cargo.toml

@@ -0,0 +1,61 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2021"
+rust-version = "1.63"
+name = "libm"
+version = "0.2.16"
+authors = [
+    "Alex Crichton <alex@alexcrichton.com>",
+    "Amanieu d'Antras <amanieu@gmail.com>",
+    "Jorge Aparicio <japaricious@gmail.com>",
+    "Trevor Gross <tg@trevorgross.com>",
+]
+build = "build.rs"
+autolib = false
+autobins = false
+autoexamples = false
+autotests = false
+autobenches = false
+description = "libm in pure Rust"
+readme = "README.md"
+keywords = [
+    "libm",
+    "math",
+]
+categories = ["no-std"]
+license = "MIT"
+repository = "https://github.com/rust-lang/compiler-builtins"
+
+[features]
+arch = []
+default = ["arch"]
+force-soft-floats = []
+unstable = [
+    "unstable-intrinsics",
+    "unstable-float",
+]
+unstable-float = []
+unstable-intrinsics = []
+unstable-public-internals = []
+
+[lib]
+name = "libm"
+path = "src/lib.rs"
+
+[dev-dependencies.no-panic]
+version = "0.1.35"
+
+[lints.rust.unexpected_cfgs]
+level = "warn"
+priority = 0
+check-cfg = ['cfg(feature, values("compiler-builtins"))']