Verify that we build with MSRV + minimal dependencies

* Lower all dependencies to `-Z minimal-versions` in CI
* Raise the following public dependencies:
    * bigdecimal to 0.0.13 to drop support for old num versions
    * chrono to 0.4.1 because it pulls in a really old num from before
      the rust 1.0 release
    * pq-sys to 0.4.0 because 0.3.x pulls in a old bindgen version
    * mysqlclient-sys to 0.3.0 for the same reason
* Bump this internal dependencies:
    * syn to 1.0.1 because we require at least that version
    * num-* to 0.2.0 to match bigdecimal version
    * bcrypt to 0.2.0 because it would pull in rustc-serialize
      otherwise
    * tempfile to 3.0.0 because otherwise it pulls in winapi 0.0.1!!!
    * bitflags to 1.2.0 because of deprecation warnings regarding to try!

Author: weiznich

.github/workflows/ci.yml

@@ -397,6 +397,9 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get -y install libsqlite3-dev libpq-dev libmysqlclient-dev
+      - name: Use minimal dependencies
+        run: |
+          RUSTC_BOOTSTRAP=1 cargo update -Z minimal-versions
 
       - name: Check building with rust 1.40.0
         uses: actions-rs/cargo@v1

CHANGELOG.md

@@ -43,7 +43,10 @@ for Rust libraries in [RFC #1105](https://github.com/rust-lang/rfcs/blob/master/
 ### Removed
 
 * All previously deprecated items have been removed.
-* Support for uuid version < 0.7.0 has been removed.
+* Support for `uuid` version < 0.7.0 has been removed.
+* Support for `bigdecimal` < 0.0.13 has been removed.
+* Support for `pq-sys` < 0.4.0 has been removed.
+* Support for `mysqlclient-sys` < 0.2.0 has been removed.
 
 ### Changed
 

diesel/Cargo.toml

@@ -14,23 +14,23 @@ edition = "2018"
 
 [dependencies]
 byteorder = "1.0"
-chrono = { version = "0.4", optional = true }
+chrono = { version = "0.4.1", optional = true }
 libc = { version = "0.2.0", optional = true }
 libsqlite3-sys = { version = ">=0.8.0, <0.19.0", optional = true, features = ["min_sqlite_version_3_7_16"] }
-mysqlclient-sys = { version = ">=0.1.0, <0.3.0", optional = true }
-pq-sys = { version = ">=0.3.0, <0.5.0", optional = true }
+mysqlclient-sys = { version = "0.2.0", optional = true }
+pq-sys = { version = "0.4.0", optional = true }
 quickcheck = { version = "0.9", optional = true }
 serde_json = { version = ">=0.8.0, <2.0", optional = true }
 time = { version = "0.1", optional = true }
 url = { version = "2.1.0", optional = true }
 percent-encoding = { version = "2.1.0", optional = true }
 uuid = { version = ">=0.7.0, <0.9.0", optional = true}
 ipnetwork = { version = ">=0.12.2, <0.17.0", optional = true }
-num-bigint = { version = ">=0.1.41, <0.3", optional = true }
+num-bigint = { version = "0.2", optional = true }
 num-traits = { version = "0.2", optional = true }
-num-integer = { version = "0.1.32", optional = true }
-bigdecimal = { version = ">= 0.0.10, < 0.2.0", optional = true }
-bitflags = { version = "1.0", optional = true }
+num-integer = { version = "0.1.39", optional = true }
+bigdecimal = { version = ">= 0.0.13, < 0.2.0", optional = true }
+bitflags = { version = "1.2.0", optional = true }
 r2d2 = { version = ">= 0.8, < 0.9", optional = true }
 
 [dependencies.diesel_derives]

diesel_cli/Cargo.toml

@@ -17,7 +17,7 @@ name = "diesel"
 path = "src/main.rs"
 
 [dependencies]
-chrono = "0.4"
+chrono = "0.4.1"
 clap = "2.27"
 dotenv = "0.15"
 heck = "0.3.1"
@@ -53,4 +53,4 @@ sqlite-bundled = ["sqlite", "libsqlite3-sys/bundled"]
 uses_information_schema = []
 
 [[test]]
-name = "tests"
+name = "tests"

diesel_derives/Cargo.toml

@@ -10,7 +10,7 @@ repository = "https://github.com/diesel-rs/diesel/tree/master/diesel_derives"
 autotests = false
 
 [dependencies]
-syn = { version = "1", features = ["full", "fold"] }
+syn = { version = "1.0.1", features = ["full", "fold"] }
 quote = "1"
 proc-macro2 = "1"
 

diesel_tests/Cargo.toml

@@ -14,15 +14,15 @@ dotenv = "0.15"
 
 [dependencies]
 assert_matches = "1.0.1"
-chrono = { version = "0.4" }
+chrono = "0.4.1"
 diesel = { path = "../diesel", default-features = false, features = ["quickcheck", "chrono", "uuid", "serde_json", "network-address", "numeric", "with-deprecated"] }
 diesel_migrations = { path = "../diesel_migrations" }
 dotenv = "0.15"
 quickcheck = "0.9"
 uuid = { version = ">=0.7.0, <0.9.0" }
 serde_json = { version=">=0.9, <2.0" }
 ipnetwork = ">=0.12.2, <0.17.0"
-bigdecimal = ">= 0.0.10, < 0.2.0"
+bigdecimal = ">= 0.0.13, < 0.2.0"
 
 [features]
 default = []

examples/postgres/advanced-blog-cli/Cargo.toml

@@ -4,13 +4,13 @@ version = "0.1.0"
 authors = ["Sean Griffin <sean@seantheprogrammer.com>"]
 
 [dependencies]
-bcrypt = "0.1.0"
+bcrypt = "0.2.0"
 chrono = "0.4.0"
 diesel = { version = "2.0.0", path = "../../../diesel", features = ["postgres", "chrono"] }
 dotenv = "0.15"
 structopt = "0.1.6"
 structopt-derive = "0.1.6"
-tempfile = "2.2.0"
+tempfile = "3.0.0"
 
 [dev-dependencies]
 assert_matches = "1.1"