Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
crate(actix-web)
rust-actix-web-devel

Requires :

(crate(actix-codec/default) >= 0.5.0 with crate(actix-codec/default) < 0.6.0~)
(crate(actix-http/default) >= 3.3.0 with crate(actix-http/default) < 4.0.0~)
(crate(actix-http/http2) >= 3.3.0 with crate(actix-http/http2) < 4.0.0~)
(crate(actix-http/ws) >= 3.3.0 with crate(actix-http/ws) < 4.0.0~)
(crate(actix-router/default) >= 0.5.0 with crate(actix-router/default) < 0.6.0~)
(crate(actix-rt) >= 2.6.0 with crate(actix-rt) < 3.0.0~)
(crate(actix-server/default) >= 2.0.0 with crate(actix-server/default) < 3.0.0~)
(crate(actix-service/default) >= 2.0.0 with crate(actix-service/default) < 3.0.0~)
(crate(actix-utils/default) >= 3.0.0 with crate(actix-utils/default) < 4.0.0~)
(crate(ahash/default) >= 0.7.0 with crate(ahash/default) < 0.8.0~)
(crate(bytes/default) >= 1.0.0 with crate(bytes/default) < 2.0.0~)
(crate(bytestring/default) >= 1.0.0 with crate(bytestring/default) < 2.0.0~)
(crate(cfg-if/default) >= 1.0.0 with crate(cfg-if/default) < 2.0.0~)
(crate(derive_more/default) >= 0.99.8 with crate(derive_more/default) < 0.100.0~)
(crate(encoding_rs/default) >= 0.8.0 with crate(encoding_rs/default) < 0.9.0~)
(crate(futures-core) >= 0.3.17 with crate(futures-core) < 0.4.0~)
(crate(futures-util) >= 0.3.17 with crate(futures-util) < 0.4.0~)
(crate(http/default) >= 0.2.8 with crate(http/default) < 0.3.0~)
(crate(itoa/default) >= 1.0.0 with crate(itoa/default) < 2.0.0~)
(crate(language-tags/default) >= 0.3.0 with crate(language-tags/default) < 0.4.0~)
(crate(log/default) >= 0.4.0 with crate(log/default) < 0.5.0~)
(crate(mime/default) >= 0.3.0 with crate(mime/default) < 0.4.0~)
(crate(once_cell/default) >= 1.5.0 with crate(once_cell/default) < 2.0.0~)
(crate(pin-project-lite/default) >= 0.2.7 with crate(pin-project-lite/default) < 0.3.0~)
(crate(regex/default) >= 1.5.5 with crate(regex/default) < 2.0.0~)
(crate(serde/default) >= 1.0.0 with crate(serde/default) < 2.0.0~)
(crate(serde_json/default) >= 1.0.0 with crate(serde_json/default) < 2.0.0~)
(crate(serde_urlencoded/default) >= 0.7.0 with crate(serde_urlencoded/default) < 0.8.0~)
(crate(smallvec/default) >= 1.6.1 with crate(smallvec/default) < 2.0.0~)
(crate(socket2/default) >= 0.4.0 with crate(socket2/default) < 0.5.0~)
(crate(time) >= 0.3.0 with crate(time) < 0.4.0~)
(crate(time/formatting) >= 0.3.0 with crate(time/formatting) < 0.4.0~)
(crate(url/default) >= 2.1.0 with crate(url/default) < 3.0.0~)
cargo
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1
rpmlib(RichDependencies) <= 4.12.0-1
rpmlib(TildeInVersions) <= 4.10.0-1

Content of RPM :
/usr/share/cargo/registry/actix-web-4.3.1
/usr/share/cargo/registry/actix-web-4.3.1/.cargo-checksum.json
/usr/share/cargo/registry/actix-web-4.3.1/CHANGES.md
/usr/share/cargo/registry/actix-web-4.3.1/Cargo.toml
/usr/share/cargo/registry/actix-web-4.3.1/LICENSE-APACHE
/usr/share/cargo/registry/actix-web-4.3.1/LICENSE-MIT
/usr/share/cargo/registry/actix-web-4.3.1/MIGRATION-0.x.md
/usr/share/cargo/registry/actix-web-4.3.1/MIGRATION-1.0.md
/usr/share/cargo/registry/actix-web-4.3.1/MIGRATION-2.0.md
/usr/share/cargo/registry/actix-web-4.3.1/MIGRATION-3.0.md
/usr/share/cargo/registry/actix-web-4.3.1/MIGRATION-4.0.md
/usr/share/cargo/registry/actix-web-4.3.1/README.md
/usr/share/cargo/registry/actix-web-4.3.1/benches
/usr/share/cargo/registry/actix-web-4.3.1/benches/responder.rs
/usr/share/cargo/registry/actix-web-4.3.1/benches/server.rs
/usr/share/cargo/registry/actix-web-4.3.1/benches/service.rs
/usr/share/cargo/registry/actix-web-4.3.1/examples
/usr/share/cargo/registry/actix-web-4.3.1/examples/README.md
/usr/share/cargo/registry/actix-web-4.3.1/examples/basic.rs
/usr/share/cargo/registry/actix-web-4.3.1/examples/macroless.rs
/usr/share/cargo/registry/actix-web-4.3.1/examples/on-connect.rs
/usr/share/cargo/registry/actix-web-4.3.1/examples/uds.rs
/usr/share/cargo/registry/actix-web-4.3.1/src
/usr/share/cargo/registry/actix-web-4.3.1/src/app.rs
/usr/share/cargo/registry/actix-web-4.3.1/src/app_service.rs
/usr/share/cargo/registry/actix-web-4.3.1/src/config.rs
/usr/share/cargo/registry/actix-web-4.3.1/src/data.rs
/usr/share/cargo/registry/actix-web-4.3.1/src/dev.rs
/usr/share/cargo/registry/actix-web-4.3.1/src/error
/usr/share/cargo/registry/actix-web-4.3.1/src/error/error.rs
There is 101 files more in these RPM.