Turn off `trace` messages (when `checkMaterialization` is disabled) to not bother user#1555

hamishmack merged 1 commit intomasterinput-output-hk/haskell.nix:masterfrom

527-make-haskellnix-evaluation-quieterinput-output-hk/haskell.nix:527-make-haskellnix-evaluation-quieterCopy head branch name to clipboard