cargo add tokio -F rt,rt-multi-thread,macros

$ cargo add serde -F serde/derive && cargo add tokio -F tokio/full


// short ver.
$ cargo add serde -F derive && cargo add tokio -F full

$ cargo add serde tokio -F serde/derive -F tokio/full

    Updating crates.io index
      Adding serde v1.0.159 to dependencies.
             Features:
             + derive
             + serde_derive
             + std
             - alloc
             - rc
             - unstable
      Adding tokio v1.27.0 to dependencies.
             Features:
             + bytes
             + fs
             + full
             + io-std
             + io-util
             + libc
             + macros
             + net
             + num_cpus
             + parking_lot
             + process

cargo add regex

cargo add --dev trybuild

cargo add nom@5

cargo add serde serde_json -F serde/derive

cargo add windows --target 'cfg(windows)'

$ cargo clean

     Removed 347 files, 102.8MiB total

rustup update
rustup update nightly
rustup target add wasm32-unknown-unknown --toolchain nightly

$ wasmedge target/wasm32-wasi/release/hello.wasm
Hello WasmEdg

cargo rustc -- -Zunpretty=mir
   Compiling testrust01 v0.1.0 (D:\young_linux\11111\testrust01)
// WARNING: This output format is intended for human consumers only
// and is subject to change without notice. Knock yourself out.
fn main() -> () {
    let mut _0: ();
    let _1: std::result::Result<ndarray::ArrayBase<ndarray::OwnedRepr<f64>, ndarray::Di
m<[usize; 2]>>, ndarray::ShapeError>;
    let mut _2: (usize, usize);
    let mut _3: std::vec::Vec<f64>;
    let mut _4: &ndarray::ArrayBase<ndarray::OwnedRepr<f64>, ndarray::Dim<[usize; 1]>>;
    let _5: ndarray::ArrayBase<ndarray::OwnedRepr<f64>, ndarray::Dim<[usize; 1]>>;

...
...
...

promoted[1] in main: &[&str; 2] = {
    let mut _0: &[&str; 2];
    let mut _1: [&str; 2];

    bb0: {
        _1 = [const "create array 01 bool : ", const "\n"];
        _0 = &_1;
        return;
    }
}
    Finished dev [unoptimized + debuginfo] target(s) in 0.67s

$ cargo rustc -- --emit llvm-ir && cat .\target\debug\deps\testrust01.ll


...
...
...

코드가 겁나게 많다.

...
!12775 = distinct !DISubprogram(name: "new<ndarray::ArrayBase<ndar
ray::data_repr::OwnedRepr<f64>,ndarray::dimension::dim::Dim<array$
<usize,2> > > >", linkageName: "_ZN4core3fmt2rt8Argument3new17h0fb
bb2618fd00175E", scope: !3030, file: !3029, line: 83, type: !12776
, scopeLine: 83, flags: DIFlagPrototyped, spFlags: DISPFlagLocalTo
Unit | DISPFlagDefinition, unit: !330, templateParams: !3989, decl
aration: !12779, retainedNodes: !12780)
!12776 = !DISubroutineType(types: !12777)
!12777 = !{!3030, !8337, !12778}
!12778 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "enum2$<co
re::result::Result<tuple$<>,core::fmt::Error> > (*)(ref$<ndarray::
ArrayBase<ndarray::data_repr::OwnedRepr<f64>,ndarray::dimension::d
im::Dim<array$<usize,2> > > >,ref_mut$<core::fmt::Formatter>)", ba
seType: !8553, size: 64, align: 64, dwarfAddressSpace: 0)
!12779 = !DISubprogram(name: "new<ndarray::ArrayBase<ndarray::data
_repr::OwnedRepr<f64>,ndarray::dimension::dim::Dim<array$<usize,2>
 > > >", linkageName: "_ZN4core3fmt2rt8Argument3new17h0fbbb2618fd0
0175E", scope: !3030, file: !3029, line: 83, type: !12776, scopeLi
ne: 83, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit, tem
plateParams: !3989)
!12780 = !{!12773, !12781}
!12781 = !DILocalVariable(name: "f", arg: 2, scope: !12774, file:
!3029, line: 83, type: !12778)
!12782 = !DILocation(line: 83, scope: !12774, inlinedAt: !12783)
!12783 = distinct !DILocation(line: 101, scope: !12766, inlinedAt:
 !12772)
!12784 = !DILocation(line: 101, scope: !12766, inlinedAt: !12772)
!12785 = !DILocation(line: 92, scope: !12774, inlinedAt: !12783)
!12786 = !DILocation(line: 102, scope: !12766, inlinedAt: !12772)
!12787 = !DILocation(line: 7, scope: !12733)
!12788 = !DILocation(line: 3, scope: !12727)