Merge minimum supprted Rust changes into dev/v0.4.0

.circleci/config.yml

@@ -83,15 +83,11 @@ workflows:
   version: 2
   build-and-test:
     jobs:
-    - build-and-test:
-        name: build-and-test-1.34.0
-        rust-version: "1.34.0"
-        debian-version: "stretch"
     - build-and-test:
         matrix:
           parameters:
             rust-version:
-            - "1.40.0"
+            - "1.42.0"
             - "1.50.0"
             - "1.54.0"
     - build-and-test:

.gitlab-ci.yml

@@ -60,20 +60,6 @@ cargo:test-nightly:
   <<: *cargo-test-script
 
 
-cargo:build-1.34:
-  stage: build
-  image: "akubera/rust-kcov:1.34.2-stretch"
-  <<: *cargo-build-script
-
-cargo:test-1.34:
-  stage: test
-  needs:
-    - cargo:build-1.34
-  image: "akubera/rust-kcov:1.34.2-stretch"
-  allow_failure: true
-  <<: *cargo-test-script
-
-
 cargo:build-1.42:
   stage: build
   image: "akubera/rust-kcov:1.42.0-buster"

README.md

@@ -4,7 +4,7 @@
 [![crate](https://img.shields.io/crates/v/bigdecimal.svg)](https://crates.io/crates/bigdecimal)
 [![Documentation](https://docs.rs/bigdecimal/badge.svg)](https://docs.rs/bigdecimal)
 
-[![minimum rustc 1.34](https://img.shields.io/badge/rustc-1.34+-red.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
+[![minimum rustc 1.42](https://img.shields.io/badge/rustc-1.42+-red.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
 
 [![coverage](https://gitlab.com/akubera/bigdecimal-rs/badges/master/coverage.svg)](https://gitlab.com/akubera/bigdecimal-rs/-/pipelines)
 [![build status - master](https://gitlab.com/akubera/bigdecimal-rs/badges/master/pipeline.svg?ignore_skipped=true)](https://gitlab.com/akubera/bigdecimal-rs/-/pipelines)