This error cannot be resolved when I measure boot time：

[lebron8dong]

https://github.com/firecracker-microvm/nsdi2020-data

This is the firecracker open source test script.

Excuting an order
cd ./prep
make
Report an error：

cd firecracker && tools/devtool -y build --release
[Firecracker devtool] Starting build (release, musl) ...
Updating crates.io index
warning: spurious network error (2 tries remaining): [7] Couldn't connect to server; class=Net (12)
warning: spurious network error (1 tries remaining): [7] Couldn't connect to server; class=Net (12)
error: failed to fetch https://github.com/rust-lang/crates.io-index

Caused by:
[7] Couldn't connect to server; class=Net (12)
make[1]: *** [Makefile:21: firecracker/build/cargo_target/x86_64-unknown-linux-musl/release/firecracker] Error 101
make[1]: Leaving directory '/home/aiot/nsdi2020-data/prep/firecracker'
make: *** [Makefile:4: all] Error 2

[lebron8dong]

I changed the mirror source but got the same error.

[lebron8dong]

How to measure the boot time of firecracker？

[JonathanWoollett-Light]

How to measure the boot time of firecracker？

To measure boot time with recent versions of Firecracker it may be useful to look at https://github.com/firecracker-microvm/firecracker/blob/main/tests/integration_tests/performance/test_boottime.py. If you can use these tests it is highly preferred to https://github.com/firecracker-microvm/nsdi2020-data.