1 error: unsupported operation: can't call foreign function: epoll_create1
2 --> CARGO_REGISTRY/.../epoll.rs:LL:CC
4 LL | syscall!(epoll_create1(flag)).map(|ep| Selector {
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't call foreign function: epoll_create1
7 = help: this is likely not a bug in the program; it indicates that the program performed an operation that the interpreter does not support
9 note: inside `main` at $DIR/tokio_mvp.rs:LL:CC
10 --> $DIR/tokio_mvp.rs:LL:CC
14 = 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)
16 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
18 error: aborting due to previous error