id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
10240	rustc-1.23.0-src	ken@…	ken@…	"Firefox-58 (due on around the 22nd of January) will need a newer rustc than what we have in the current book. To minimise the churn of rustc versions, I intend to use 1.23.0 (released last week).

Unfortunately, that does not build firefox-57.0.4 (it looks as if there is some problem with warning about unused variables), but it does build 58-beta14. So, it will have to go into the book with 58.0.

Meanwhile, I started a fresh build on one of my machines so that I could get more figures for time, space, test failures.  But on the first attempt (without a log, because I built it fine on another machine last week) something failed in less than 6 minutes - but the original error seemed to have scrolled out.

I'm now doing a second attempt, using tee to capture the output.  This appears to be building fine - unless the resulting log is enormous, I think I'll use a similar process in the book, so that people can find any error messages.

The claimed good feature of this release is that it uses less memory. I have no idea what difference that really makes.
"	enhancement	closed	normal	8.2	BOOK	SVN	medium	wontfix