maturin init creates Cargo.toml incorrectly

[OWissett]

Bug Description

When running maturin init, the Cargo.toml is missing the [lib] tag, leading to maturin build (and all other commands) to fail.

Example output:

[package]
name = "getting_started"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html[lib]
name = "getting_started"
crate-type = ["cdylib"]

[dependencies]
pyo3 = { version = "0.17.1", features = ["extension-module"] }

Expected:

[package]
name = "getting_started"
version = "0.1.0"
edition = "2021"

[lib]
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html[lib]
name = "getting_started"
crate-type = ["cdylib"]

[dependencies]
pyo3 = { version = "0.17.1", features = ["extension-module"] }

OS: MacOS, Monterey 12.0.1
Arch: Arm64, M1 2020

Your Python version (python -V)

3.10.6

Your pip version (pip -V)

22.2.2

What bindings you're using

pyo3

Does cargo build work?

• Yes, it works

If on windows, have you checked that you aren't accidentally using unix path (those with the forward slash /)?

• Yes

Steps to Reproduce

1. create virtualenv: python3.10 -m virtualenv .venv; ./.venv/bin/activate
2. install maturin: pip install maturin
3. create project: maturin init
4. done.

[messense]

Already fixed in #1109