a modal/duality modality

Sonnet Upon Hearing the Rustonomicon Sung in the User Group

Nay, Alexis, not thus! Shared muts in the main,
Lone &strs, or borrows hence requited.
Teach me more clearly of Thy lifetime elided,
Than terrors of transmutes and functions foreign.
Generic trait bounds, dear memories ("cargo run")
A /join in the channel, a 10xer acerbic 
Tells me of One who had no types generic
I think it is of Thee the servos hum 

Sync rather on some Arc, ?sized T
Where concurrency's self shared mutable state
And Option fields unwrap; no nils in sight
Send if you wish to bid your structs free
To some arbitrary safe fate; wait...
And receive your var with zero-fright.