Set MSRV to 1.70.0

Author: danieldk

Diff for: syntaxdot-cli/Cargo.toml

@@ -8,6 +8,7 @@ homepage = "https://github.com/tensordot/syntaxdot"
 repository = "https://github.com/tensordot/syntaxdot.git"
 documentation = "https://github.com/tensordot/syntaxdot"
 license = "MIT OR Apache-2.0"
+rust-version = "1.70.0"
 
 [[bin]]
 name = "syntaxdot"

Diff for: syntaxdot-encoders/Cargo.toml

@@ -8,6 +8,7 @@ homepage = "https://github.com/tensordot/syntaxdot"
 repository = "https://github.com/tensordot/syntaxdot.git"
 documentation = "https://docs.rs/syntaxdot-encoders/"
 license = "MIT OR Apache-2.0"
+rust-version = "1.70.0"
 
 [dependencies]
 caseless = "0.2"

Diff for: syntaxdot-summary/Cargo.toml

@@ -8,6 +8,7 @@ homepage = "https://github.com/tensordot/syntaxdot"
 repository = "https://github.com/tensordot/syntaxdot.git"
 documentation = "https://docs.rs/syntaxdot-transformers/"
 license = "MIT OR Apache-2.0"
+rust-version = "1.70.0"
 
 
 [dependencies]

Diff for: syntaxdot-tch-ext/Cargo.toml

@@ -8,6 +8,7 @@ homepage = "https://github.com/tensordot/syntaxdot"
 repository = "https://github.com/tensordot/syntaxdot.git"
 documentation = "https://docs.rs/syntaxdot-tch-ext/"
 license = "MIT OR Apache-2.0"
+rust-version = "1.70.0"
 
 [dependencies]
 itertools = "0.11"

Diff for: syntaxdot-tokenizers/Cargo.toml

@@ -8,6 +8,7 @@ homepage = "https://github.com/tensordot/syntaxdot"
 repository = "https://github.com/tensordot/syntaxdot.git"
 documentation = "https://docs.rs/syntaxdot-tokenizers/"
 license = "MIT OR Apache-2.0"
+rust-version = "1.70.0"
 
 [dependencies]
 ndarray = "0.15"

Diff for: syntaxdot-transformers/Cargo.toml

@@ -8,6 +8,7 @@ homepage = "https://github.com/tensordot/syntaxdot"
 repository = "https://github.com/tensordot/syntaxdot.git"
 documentation = "https://docs.rs/syntaxdot-transformers/"
 license = "MIT OR Apache-2.0"
+rust-version = "1.70.0"
 
 [dependencies]
 serde = { version = "1", features = ["derive"] }

Diff for: syntaxdot/Cargo.toml

@@ -8,6 +8,7 @@ homepage = "https://github.com/tensordot/syntaxdot"
 repository = "https://github.com/tensordot/syntaxdot.git"
 documentation = "https://docs.rs/syntaxdot/"
 license = "MIT OR Apache-2.0"
+rust-version = "1.70.0"
 
 [dependencies]
 chu-liu-edmonds = "0.1"