Rollup of 16 pull requests#59941

Closed

Centril wants to merge 44 commits intorust-lang:masterfrom

Centril:rollup-ugml7zw

Commits on Apr 4, 2019

Mark variables captured by reference as mutable correctly
matthewjasper
committed

Commits on Apr 5, 2019

remove lookup_char_pos_adj
matklad
committed

Commits on Apr 6, 2019

Add book.toml to tools/unstable, add copy_book_toml to scipt
Bastian Gruber
committed
Remove copy_book_toml method in favor for copy_recursive
Bastian Gruber
committed
path -> from
Bastian Gruber
committed

Commits on Apr 7, 2019

Change root path for unstable-book
Bastian Gruber
committed

Commits on Apr 9, 2019

Fix links on keyword docs.
ehuss
committed

Commits on Apr 13, 2019