diff --git a/Cargo.toml b/Cargo.toml
index 57924f1..0c59727 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,11 +43,6 @@ bench = false
 version = "0.4"
 optional = true
 
-[dependencies.blas-src]
-version = "0.6.1"
-optional = true
-default-features = false
-
 [dependencies.cblas-sys]
 version = "0.1.4"
 optional = true
@@ -92,7 +87,7 @@ version = "0.9"
 default-features = false
 
 [features]
-blas = ["cblas-sys", "blas-src"]
+blas = ["cblas-sys"]
 docs = ["approx", "serde", "rayon"]
 serde-1 = ["serde"]
 test = ["test-blas-openblas-sys"]
><td class='form'><form method='get'>
<input type='hidden' name='id' value='53ef4bf53775cf80959000667c5bdb7f4d7b6232'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232'>refs</a><a class='active' href='/guix/log/tests/guix-environment.sh'>log</a><a href='/guix/tree/tests/guix-environment.sh?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232'>tree</a><a href='/guix/commit/tests/guix-environment.sh?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232'>commit</a><a href='/guix/diff/tests/guix-environment.sh?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/guix-environment.sh'>
<input type='hidden' name='id' value='53ef4bf53775cf80959000667c5bdb7f4d7b6232'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232'>root</a>/<a href='/guix/log/tests?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232'>tests</a>/<a href='/guix/log/tests/guix-environment.sh?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232'>guix-environment.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-environment.sh?id=53ef4bf53775cf80959000667c5bdb7f4d7b6232&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-04-21 16:16:38 +0200'>2023-04-21</span></td><td><a href='/guix/commit/tests/guix-environment.sh?id=37dd69b44511dc73eb04bdebe8d82c9a0386338e'>tests: Fix checks for expected failures.</a><span class='msg-avail'>...<span class='msg-tooltip'>Addresses &lt;https://issues.guix.gnu.org/62406&gt;.

With 'set -e', a return status inverted with '!' does not cause the shell to
exit immediately.  Instead use '&amp;&amp; false' to indicate an expected failure.

* tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh,
tests/guix-daemon.sh, tests/guix-download.sh,
tests/guix-environment-container.sh, tests/guix-environment.sh,
tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh,
tests/guix-hash.sh, tests/guix-home.sh, tests/guix-pack-relocatable.sh,
tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh,
tests/guix-package.sh, tests/guix-refresh.sh, tests/guix-shell.sh,
tests/guix-style.sh, tests/guix-system.sh: Replace uses of '! ...' with
'... &amp;&amp; false' or `test ! ...` as appropriate.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Eric Bavier</td></tr>