Update env_logger and reqwest

The log:
```
    Updating crates.io index
    Updating base64 v0.11.0 -> v0.13.0
      Adding bytes v1.0.1
      Adding cfg-if v1.0.0
    Updating core-foundation v0.7.0 -> v0.9.1
    Updating core-foundation-sys v0.7.0 -> v0.8.2
    Updating env_logger v0.7.1 -> v0.8.3
      Adding form_urlencoded v1.0.1
    Removing fuchsia-zircon v0.3.3
    Removing fuchsia-zircon-sys v0.3.3
    Updating h2 v0.2.5 -> v0.3.1
      Adding hashbrown v0.9.1
    Updating http-body v0.3.1 -> v0.4.0
      Adding httpdate v0.3.2
    Updating humantime v1.3.0 -> v2.1.0
    Updating hyper v0.13.5 -> v0.14.4
    Updating hyper-tls v0.4.1 -> v0.5.0
    Updating indexmap v1.3.2 -> v1.6.2
    Removing iovec v0.1.4
      Adding ipnet v2.3.0
    Updating js-sys v0.3.39 -> v0.3.48
    Removing kernel32-sys v0.2.2
    Updating libc v0.2.70 -> v0.2.89
    Removing mime_guess v2.0.3
    Updating mio v0.6.22 -> v0.7.10
    Updating miow v0.2.1 -> v0.3.6
    Updating native-tls v0.2.4 -> v0.2.7
    Removing net2 v0.2.34
      Adding ntapi v0.3.4
      Adding pin-project v1.0.5
      Adding pin-project-internal v1.0.5
    Updating pin-project-lite v0.1.5 -> v0.2.6
    Updating proc-macro2 v1.0.13 -> v1.0.24
    Updating reqwest v0.10.4 -> v0.11.2
    Updating security-framework v0.4.4 -> v2.1.2
    Updating security-framework-sys v0.4.3 -> v2.1.1
    Updating serde_urlencoded v0.6.1 -> v0.7.0
      Adding socket2 v0.3.19
    Updating syn v1.0.22 -> v1.0.64
    Updating tokio v0.2.21 -> v1.3.0
      Adding tokio-native-tls v0.3.0
    Removing tokio-tls v0.3.1
    Updating tokio-util v0.3.1 -> v0.6.4
      Adding tracing v0.1.25
      Adding tracing-core v0.1.17
    Removing unicase v2.6.0
    Updating url v2.1.1 -> v2.2.1
    Updating wasm-bindgen v0.2.62 -> v0.2.71
    Updating wasm-bindgen-backend v0.2.62 -> v0.2.71
    Updating wasm-bindgen-futures v0.4.12 -> v0.4.21
    Updating wasm-bindgen-macro v0.2.62 -> v0.2.71
    Updating wasm-bindgen-macro-support v0.2.62 -> v0.2.71
    Updating wasm-bindgen-shared v0.2.62 -> v0.2.71
    Removing winapi v0.2.8
    Removing winapi-build v0.1.1
    Updating winreg v0.6.2 -> v0.7.0
    Removing ws2_32-sys v0.2.1
```

Author: JohnTitor