diff -r 743522fa2455 -r 2df655f682a6 contrib/automation/hgautomation/linux.py
--- a/contrib/automation/hgautomation/linux.py	Thu May 06 15:40:47 2021 -0700
+++ b/contrib/automation/hgautomation/linux.py	Thu May 06 15:41:52 2021 -0700
@@ -85,7 +85,7 @@
 
 chmod +x rustup-init
 sudo -H -u hg -g hg ./rustup-init -y
-sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup install 1.31.1 1.46.0
+sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup install 1.41.1 1.52.0
 sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup component add clippy
 
 sudo -H -u hg -g hg /home/hg/.cargo/bin/cargo install --version 0.10.3 pyoxidizer