Disable x86_64-unknown-dragonfly.

Author: reitermarkus

CHANGELOG.md

@@ -5,6 +5,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+- Disabled `x86_64-unknown-dragonfly` image.
+
 ## [v0.2.0] - 2020-02-22
 
 - Removed OpenSSL from all images.

azure-pipelines.yml

@@ -55,7 +55,7 @@ jobs:
         x86_64-pc-windows-gnu:           { TARGET: x86_64-pc-windows-gnu,           CPP: 1,           STD: 1,                   RUN: 1 }
         # `cargo build` fails with undefined symbols (https://github.com/rust-lang/rust/issues/32859) on `i686-pc-windows-gnu`.
       # i686-pc-windows-gnu:             { TARGET: i686-pc-windows-gnu,             CPP: 1,           STD: 1,                   RUN: 1 }
-        x86_64-unknown-dragonfly:        { TARGET: x86_64-unknown-dragonfly,        CPP: 1, DYLIB: 1,         TOOLCHAIN: nightly }
+      # x86_64-unknown-dragonfly:        { TARGET: x86_64-unknown-dragonfly,        CPP: 1, DYLIB: 1,         TOOLCHAIN: nightly }
       # i686-unknown-freebsd:            { TARGET: i686-unknown-freebsd,                    DYLIB: 1, STD: 1 }
       # x86_64-unknown-freebsd:          { TARGET: x86_64-unknown-freebsd,                  DYLIB: 1, STD: 1 }
         x86_64-unknown-netbsd:           { TARGET: x86_64-unknown-netbsd,           CPP: 1, DYLIB: 1, STD: 1 }