Rollup merge of #56747 - ljedrz:remove_box_from_target, r=zackmdavis
Rollup merge of #56747 - ljedrz:remove_box_from_target, r=zackmdavis

target: remove Box returned by get_targets

graydon/rust,GBGamer/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,graydon/rust,aidancully/rust