Error when deploying on Heroku with Docker

[danechitoaie]

I just added Sentry to my Rust project that I'm deploying on Heroku using Docker and after I added Sentry the build started failing with this error:

The following warnings were emitted during compilation:
warning: [email protected]: Could not find directory of OpenSSL installation, and this `-sys` crate cannot proceed without this knowledge. If OpenSSL is installed and this crate had trouble finding it,  you can set the `OPENSSL_DIR` environment variable for the compilation process. See stderr section below for further information.
error: failed to run custom build command for `openssl-sys v0.9.104`

My Cargo.toml is like this:

reqwest = { version = "0.12.9", default-features = false, features = ["json", "deflate", "gzip", "brotli", "rustls-tls"] }
sentry = { version = "0.36.0", default-features = false, features = ["backtrace", "contexts", "panic", "transport", "anyhow", "reqwest", "rustls"] }

From what I see Sentry tries to use openssl-sys? Shouldn't it use rustls in the way I configured it?
Any way to make Sentry use rustls so I don't need to compile OpenSSL?

[danechitoaie]

I think I got it working. At least now it builds.

sentry = { version = "0.36.0", default-features = false, features = ["backtrace", "contexts", "panic", "anyhow", "reqwest", "rustls"] }

Basically I had to remove the "transport" feature from sentry.