I am confident I have asked this before, but I can't find the old post:
How do we specify per-crate build options in Cargo.toml ?
I.e. I want to say:
I don't care if we are building in release mode or debug mode, I want to build the image crate with opt-level=3, debug=false.
[profile.<name>.package.<name>] in config.toml Configuration - The Cargo Book
[profile.<name>] # Modify profile settings via config.
inherits = "dev" # Inherits settings from [profile.dev].
opt-level = 0 # Optimization level.
debug = true # Include debug info.
split-debuginfo = '...' # Debug info splitting behavior.
debug-assertions = true # Enables debug assertions.
overflow-checks = true # Enables runtime integer overflow checks.
lto = false # Sets link-time optimization.
panic = 'unwind' # The panic strategy.
incremental = true # Incremental compilation.
codegen-units = 16 # Number of code generation units.
rpath = false # Sets the rpath linking option.
[profile.<name>.build-override] # Overrides build-script settings.
# Same keys for a normal profile.
[profile.<name>.package.<name>] # Override profile for a package.
# Same keys for a normal profile (minus `panic`, `lto`, and `rpath`).
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