Prepare for the next release

[taiki-e]

• crossbeam-channel 0.5.1 -> 0.5.2
  • Fix stacked borrows violations. (Use Box::into_raw instead of mem::forget-in-disguise #763, channel: Remove ptr-to-int casts #764)
• crossbeam-epoch 0.9.5 -> 0.9.6
  • Add Atomic::fetch_update. (Add Atomic::fetch_update #706)
• crossbeam-queue 0.3.2 -> 0.3.3
  • Fix stacked borrows violation in ArrayQueue. (Use Box::into_raw instead of mem::forget-in-disguise #763)
• crossbeam-utils 0.8.5 -> 0.8.6
  • Re-add AtomicCell<{i,u}64>::{fetch_add,fetch_sub,fetch_and,fetch_or,fetch_xor} that were accidentally removed in 0.8.0 0.7.1 on targets that do not support Atomic{I,U}64. (Support AtomicCell<*64> arithmetics on targets that do not support Atomic*64 #767)
  • Re-add AtomicCell<{i,u}128>::{fetch_add,fetch_sub,fetch_and,fetch_or,fetch_xor} that were accidentally removed in 0.8.0 0.7.1. (Support AtomicCell<*64> arithmetics on targets that do not support Atomic*64 #767)

[taiki-e]

bors r+

[bors]

Build succeeded:

• ci