Remove no longer required dependencies

With the update to rand 0.6.4 we no longer require the dependencies to
rustc_version, semver, and semver-parser. Hence, this change removes
them.

Delete subrepo rustc_version/:rustc_version
Delete subrepo semver/:semver
Delete subrepo semver-parser/:semver-parser

3 files changed, 0 insertions, 137 deletions

diff --git a/semver/tests/deprecation.rs b/semver/tests/deprecation.rs
deleted file mode 100644
index a5f533a..0000000
--- a/semver/tests/deprecation.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-extern crate semver;
-
-#[test]
-fn test_regressions() {
-    use semver::VersionReq;
-    use semver::ReqParseError;
-
-    let versions = vec![
-        (".*", VersionReq::any()),
-        ("0.1.0.", VersionReq::parse("0.1.0").unwrap()),
-        ("0.3.1.3", VersionReq::parse("0.3.13").unwrap()),
-        ("0.2*", VersionReq::parse("0.2.*").unwrap()),
-        ("*.0", VersionReq::any()),
-    ];
-
-    for (version, requirement) in versions.into_iter() {
-        let parsed = VersionReq::parse(version);
-        let error = parsed.err().unwrap();
-
-        assert_eq!(ReqParseError::DeprecatedVersionRequirement(requirement), error);
-    }
-}
diff --git a/semver/tests/regression.rs b/semver/tests/regression.rs
deleted file mode 100644
index ef568a7..0000000
--- a/semver/tests/regression.rs
+++ /dev/null
@@ -1,25 +0,0 @@
-extern crate semver;
-extern crate crates_index;
-extern crate tempdir;
-
-// This test checks to see if every existing crate parses successfully. Important to not break the
-// Rust universe!
-
-#[cfg(feature = "ci")]
-#[test]
-fn test_regressions() {
-    use tempdir::TempDir;
-    use crates_index::Index;
-    use semver::Version;
-
-    let dir = TempDir::new("semver").unwrap();
-    let index = Index::new(dir.into_path());
-    index.clone().unwrap();
-
-    for krate in index.crates() {
-        for version in krate.versions() {
-            let v = version.version();
-            assert!(Version::parse(v).is_ok(), "failed: {} ({})", version.name(), v);
-        }
-    }
-}
diff --git a/semver/tests/serde.rs b/semver/tests/serde.rs
deleted file mode 100644
index bcb9264..0000000
--- a/semver/tests/serde.rs
+++ /dev/null
@@ -1,90 +0,0 @@
-#![cfg(feature = "serde")]
-
-#[macro_use]
-extern crate serde_derive;
-
-extern crate semver;
-extern crate serde_json;
-
-use semver::{Identifier, Version, VersionReq};
-
-#[derive(Serialize, Deserialize, PartialEq, Debug)]
-struct Identified {
-    name: String,
-    identifier: Identifier,
-}
-
-#[derive(Serialize, Deserialize, PartialEq, Debug)]
-struct Versioned {
-    name: String,
-    vers: Version,
-}
-
-#[test]
-fn serialize_identifier() {
-    let id = Identified {
-        name: "serde".to_owned(),
-        identifier: Identifier::Numeric(100),
-    };
-    let j = serde_json::to_string(&id).unwrap();
-    assert_eq!(j, r#"{"name":"serde","identifier":100}"#);
-
-    let id = Identified {
-        name: "serde".to_owned(),
-        identifier: Identifier::AlphaNumeric("b100".to_owned()),
-    };
-    let j = serde_json::to_string(&id).unwrap();
-    assert_eq!(j, r#"{"name":"serde","identifier":"b100"}"#);
-}
-
-#[test]
-fn deserialize_identifier() {
-    let j = r#"{"name":"serde","identifier":100}"#;
-    let id = serde_json::from_str::<Identified>(j).unwrap();
-    let expected = Identified {
-        name: "serde".to_owned(),
-        identifier: Identifier::Numeric(100),
-    };
-    assert_eq!(id, expected);
-
-    let j = r#"{"name":"serde","identifier":"b100"}"#;
-    let id = serde_json::from_str::<Identified>(j).unwrap();
-    let expected = Identified {
-        name: "serde".to_owned(),
-        identifier: Identifier::AlphaNumeric("b100".to_owned()),
-    };
-    assert_eq!(id, expected);
-}
-
-#[test]
-fn serialize_version() {
-    let v = Versioned {
-        name: "serde".to_owned(),
-        vers: Version::parse("1.0.0").unwrap(),
-    };
-    let j = serde_json::to_string(&v).unwrap();
-    assert_eq!(j, r#"{"name":"serde","vers":"1.0.0"}"#);
-}
-
-#[test]
-fn deserialize_version() {
-    let j = r#"{"name":"serde","vers":"1.0.0"}"#;
-    let v = serde_json::from_str::<Versioned>(j).unwrap();
-    let expected = Versioned {
-        name: "serde".to_owned(),
-        vers: Version::parse("1.0.0").unwrap(),
-    };
-    assert_eq!(v, expected);
-}
-
-#[test]
-fn serialize_versionreq() {
-    let v = VersionReq::exact(&Version::parse("1.0.0").unwrap());
-
-    assert_eq!(serde_json::to_string(&v).unwrap(), r#""= 1.0.0""#);
-}
-
-#[test]
-fn deserialize_versionreq() {
-    assert_eq!("1.0.0".parse::<VersionReq>().unwrap(), serde_json::from_str(r#""1.0.0""#).unwrap());
-}