cargo下载失败报SSL connect error

现象：

cargo build 时下载失败（Windows 10 x64, build 1903）,提示：

warning: spurious network error (2 tries remaining): [35] SSL connect error (schannel: next InitializeSecurityContext fa
iled: Unknown error (0x80092013)

error: failed to download from `https://crates-io.proxy.ustclug.org/api/v1/crates/chrono/0.4.9/download`
Caused by:
[35] SSL connect error (schannel: next InitializeSecurityContext failed: Unknown error (0x80092013)

分析：

用curl -v https://crates-io.proxy.ustclug.org/api/v1/crates/chrono/0.4.9/download

提示：

* schannel: shutting down SSL/TLS connection with crates-io.proxy.ustclug.org port 443
* schannel: clear security context handle
curl: (35) schannel: next InitializeSecurityContext failed: Unknown error (0x80092013) - 由于吊销服务器已脱机，吊销功能
无法检查吊销。

 

而用curl -kv https://crates-io.proxy.ustclug.org/api/v1/crates/chrono/0.4.9/download

或curl -v --ssl-no-revoke https://crates-io.proxy.ustclug.org/api/v1/crates/chrono/0.4.9/download

可以下载。

 

解决方案：

在~/.cargo/config中加入

[http]
check-revoke = false

 

或者：

调置环境变量CARGO_HTTP_CHECK_REVOKE=false