Minimize versions of dependencies & specify MSRV.

Author: wsx-antithesis

lib/Cargo.toml

@@ -2,18 +2,19 @@
 name = "antithesis_sdk_rust"
 version = "0.1.0"
 edition = "2021"
+rust-version = "1.62.1"
 
 [dependencies]
-serde_json = "1.0.115"
-libloading = "0.8.3"
-libc = "0.2.153"
-rand = "0.8.5"
-rustc_version_runtime = "0.3.0"
+serde_json = "1.0.25"
+libloading = "0.8"
+libc = "0.2.64"
+rand = "0.8"
+rustc_version_runtime = "0.3"
 once_cell = "1"
-linkme = "0.3"
+linkme = "0.3.17"
 
 [dev-dependencies]
-serde = { version = "1.0", features = ["derive"] }
+serde = { version = "1.0.60", features = ["derive"] }
 
 [features]
 no-antithesis-sdk = []

simple/Cargo.toml

@@ -5,4 +5,4 @@ edition = "2021"
 
 [dependencies]
 antithesis_sdk_rust = { path = "../lib" }
-serde_json = "1.0.115"
+serde_json = "1.0.25"