Rollup of 8 pull requests#33494

Merged

bors merged 15 commits intorust-lang:masterfrom Manishearth:rollup

May 8, 2016

+629-199

Commits on May 3, 2016

Commits on May 4, 2016

add a check to make tidy to ensure cargo lock file is updated
gsquire
committed
Improve diagnostics for constants being used in irrefutable patterns
Manishearth
committed

Commits on May 5, 2016

Commits on May 7, 2016

Implement RFC 1542
sfackler
committed

Commits on May 8, 2016

Rollup merge of rust-lang#33369 - nikomatsakis:graceful-empty-span, r=jntrnr
Manishearth
committed
Rollup merge of rust-lang#33373 - birkenfeld:issue-32555, r=bluss
Manishearth
committed
Rollup merge of rust-lang#33404 - gsquire:cargo-lock, r=alexcrichton
Manishearth
committed
Rollup merge of rust-lang#33406 - Manishearth:diag-improve-const-let, r=GuillaumeGomez
Manishearth
committed
Rollup merge of rust-lang#33420 - durka:patch-20, r=alexcrichton
Manishearth
committed
Rollup merge of rust-lang#33424 - semarie:dist, r=alexcrichton
Manishearth
committed
Rollup merge of rust-lang#33426 - sfackler:try-from, r=aturon
Manishearth
committed