Initial import of num-bigint-0.4.0

Bug: 193833713
Change-Id: I02bd69e830f9bdc80399d8fb187c1aa3fdd1a856
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..9c2fdea
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,80 @@
+# 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 believe there's an error in this file please file an
+# issue against the rust-lang/cargo repository. If you're
+# editing this file be aware that the upstream Cargo.toml
+# will likely look very different (and much more reasonable)
+
+[package]
+edition = "2018"
+name = "num-bigint"
+version = "0.4.0"
+authors = ["The Rust Project Developers"]
+build = "build.rs"
+exclude = ["/bors.toml", "/ci/*", "/.github/*"]
+description = "Big integer implementation for Rust"
+homepage = "https://github.com/rust-num/num-bigint"
+documentation = "https://docs.rs/num-bigint"
+readme = "README.md"
+keywords = ["mathematics", "numerics", "bignum"]
+categories = ["algorithms", "data-structures", "science"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/rust-num/num-bigint"
+[package.metadata.docs.rs]
+features = ["std", "serde", "rand", "quickcheck", "arbitrary"]
+
+[[bench]]
+name = "bigint"
+
+[[bench]]
+name = "factorial"
+
+[[bench]]
+name = "gcd"
+
+[[bench]]
+name = "roots"
+
+[[bench]]
+name = "shootout-pidigits"
+harness = false
+[dependencies.arbitrary]
+version = "1"
+optional = true
+default-features = false
+
+[dependencies.num-integer]
+version = "0.1.42"
+features = ["i128"]
+default-features = false
+
+[dependencies.num-traits]
+version = "0.2.11"
+features = ["i128"]
+default-features = false
+
+[dependencies.quickcheck]
+version = "1"
+optional = true
+default-features = false
+
+[dependencies.rand]
+version = "0.8"
+optional = true
+default-features = false
+
+[dependencies.serde]
+version = "1.0"
+optional = true
+default-features = false
+[build-dependencies.autocfg]
+version = "1"
+
+[features]
+default = ["std"]
+std = ["num-integer/std", "num-traits/std"]