The error message here is identical (although the exact test that failed might differ):
running 395 tests
...
test suite::cli_exact::check_updates_with_update ... FAILED
error: could not download file from 'https://static.rust-lang.org/rustup/release-stable.toml' to '/tmp/rustup-updateD58GcC/release-stable.toml': failed to make network request: error sending request for url (https://static.rust-lang.org/rustup/release-stable.toml): client error (SendRequest): dispatch task is gone: runtime dropped the dispatch task
According to the error message format and my IDE searching the current codebase, this is a RustupError::DownloadingFile. This kind error message can only be emitted from here:
Verification
Problem
This is causing irregular failures for different CI platforms:
The error message here is identical (although the exact test that failed might differ):
Notes
Possibly related to https://github.com/hyperium/hyper/issues/2312, https://github.com/Azure/azure-sdk-for-rust/pull/1550 or https://github.com/fussybeaver/bollard/issues/387#issuecomment-2008133973.
I'm pretty sure that #3367 has caused this.