Initial import; Fixes: RHBZ#1990538

.gitignore

@@ -0,0 +1 @@
+/linreg-0.2.0.crate

linreg-update-displaydoc.patch

@@ -0,0 +1,27 @@
+diff -Naur a/Cargo.toml b/Cargo.toml
+--- a/Cargo.toml	1969-12-31 16:00:00.000000000 -0800
++++ b/Cargo.toml	2021-08-05 08:38:54.484222554 -0700
+@@ -21,7 +21,7 @@
+ license = "MIT"
+ repository = "https://github.com/49nord/linreg-rs.git"
+ [dependencies.displaydoc]
+-version = "0.1.5"
++version = "0.2"
+ default-features = false
+ 
+ [dependencies.num-traits]
+diff -Naur a/src/lib.rs b/src/lib.rs
+--- a/src/lib.rs	2019-12-08 08:38:28.000000000 -0800
++++ b/src/lib.rs	2021-08-05 08:39:12.167403464 -0700
+@@ -53,9 +53,8 @@
+ pub enum Error {
+     /// The slope is too steep to represent, approaching infinity.
+     TooSteep,
+-    /// Failed to calculate mean.
+-    ///
+-    /// This means the input was empty or had too many elements.
++    /** Failed to calculate mean.
++        This means the input was empty or had too many elements. */
+     Mean,
+     /// Lengths of the inputs are different.
+     InputLenDif,

rust-linreg.spec

@@ -0,0 +1,77 @@
+# Generated by rust2rpm 18
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate linreg
+
+Name:           rust-%{crate}
+Version:        0.2.0
+Release:        %autorelease
+Summary:        Calculates linear regresssions of two-dimensional data
+
+# Upstream license specification: MIT
+License:        MIT
+URL:            https://crates.io/crates/linreg
+Source:         %{crates_source}
+# Backport of PR#8: Update displaydoc to 0.2
+Patch0:        linreg-update-displaydoc.patch
+
+ExclusiveArch:  %{rust_arches}
+%if %{__cargo_skip_build}
+BuildArch:      noarch
+%endif
+
+BuildRequires:  rust-packaging
+
+%global _description %{expand:
+Calculates linear regresssions of two-dimensional data. Does not use stdlib,
+only depends on numeric traits.}
+
+%description %{_description}
+
+%package        devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description    devel %{_description}
+
+This package contains library source intended for building other packages
+which use "%{crate}" crate.
+
+%files          devel
+%license LICENSE
+%doc README.md
+%{cargo_registry}/%{crate}-%{version_no_tilde}/
+
+%package     -n %{name}+default-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+default-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "default" feature of "%{crate}" crate.
+
+%files       -n %{name}+default-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%prep
+%autosetup -n %{crate}-%{version_no_tilde} -p1
+%cargo_prep
+
+%generate_buildrequires
+%cargo_generate_buildrequires
+
+%build
+%cargo_build
+
+%install
+%cargo_install
+
+%if %{with check}
+%check
+%cargo_test
+%endif
+
+%changelog
+%autochangelog

sources

@@ -0,0 +1 @@
+SHA512 (linreg-0.2.0.crate) = 3247b75aa1bf5ee10894b199baf0d573ac73414b8dcb65372b9c5d5258349ea2a3b976f6b686b73e13fab3d970da9d76e031782bf6044c3b11158aa029e113af