error: unsupported operation: can't call foreign function: epoll_create1
  --> CARGO_REGISTRY/.../epoll.rs:LL:CC
   |
LL |         syscall!(epoll_create1(flag)).map(|ep| Selector {
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't call foreign function: epoll_create1
   |
   = help: this is likely not a bug in the program; it indicates that the program performed an operation that the interpreter does not support
   = note: backtrace:
note: inside `main` at $DIR/tokio_mvp.rs:LL:CC
  --> $DIR/tokio_mvp.rs:LL:CC
   |
LL | #[tokio::main]
   | ^^^^^^^^^^^^^^
   = note: this error originates in the macro `syscall` which comes from the expansion of the attribute macro `tokio::main` (in Nightly builds, run with -Z macro-backtrace for more info)

note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace

error: aborting due to previous error