warning: unexpected `cfg` condition value
  --> $DIR/values-target-json.rs:13:7
   |
LL | #[cfg(target_os = "linuz")]
   |       ^^^^^^^^^^^^-------
   |                   |
   |                   help: there is a expected value with a similar name: `"linux"`
   |
   = note: expected values for `target_os` are: `aix`, `android`, `cuda`, `dragonfly`, `emscripten`, `ericos`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `illumos`, `ios`, `l4re`, `linux`, `macos`, `netbsd`, `none`, `nto`, `openbsd`, `psp`, `redox`, `solaris`, `solid_asp3`, `teeos`, `tvos`, `uefi`, `unknown`, `vita`, `vxworks`, `wasi`, `watchos`, `windows`, `xous`
   = note: `#[warn(unexpected_cfgs)]` on by default

warning: 1 warning emitted