build.rustflags is ignored

[jsgf]

According to http://doc.crates.io/config.html I should be able to use

[build]
rustflags = "..."

to set the linker and rustc flags, but they're ignored:

$ cargo build -v
warning: unused manifest key: build.rustflags
   Compiling t v0.1.0 (file:///Users/jsgf/t)
     Running `rustc src/main.rs --crate-name t --crate-type bin -g -C metadata=6e630606adc861f6 --out-dir /Users/jsgf/t/target/debug --emit=dep-info,link -L dependency=/Users/jsgf/t/target/debug/deps`
    Finished debug [unoptimized + debuginfo] target(s) in 0.41 secs

[package]
name = "t"
version = "0.1.0"

[build]
rustflags = "-Clinker=/bin/also/bad"

[jsgf]

Invalid - config, not manifest

[niondir]

I have the same issue, any solutions for this?

[niondir]

Okay got it. Moved the definitions into ./cargo/config