Vendor dependencies for 0.3.0 release

vendor/scopeguard/Cargo.toml

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+# 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]
+name = "scopeguard"
+version = "1.2.0"
+authors = ["bluss"]
+description = """
+A RAII scope guard that will run a given closure when it goes out of scope,
+even if the code between panics (assuming unwinding panic).
+
+Defines the macros `defer!`, `defer_on_unwind!`, `defer_on_success!` as
+shorthands for guards with one of the implemented strategies.
+"""
+documentation = "https://docs.rs/scopeguard/"
+readme = "README.md"
+keywords = [
+    "scope-guard",
+    "defer",
+    "panic",
+    "unwind",
+]
+categories = [
+    "rust-patterns",
+    "no-std",
+]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/bluss/scopeguard"
+
+[package.metadata.release]
+no-dev-version = true
+
+[features]
+default = ["use_std"]
+use_std = []