I am receiving similar errors trying to install cargo-make.

   Compiling cargo-make v0.24.1
error: macro expansion ignores token `if` and any following
   --> <::log::macros::log_impl macros>:13:23
    |
13  |       let lvl = $ lvl ; if lvl <= $ crate :: STATIC_MAX_LEVEL && lvl <= $ crate
    |                         ^^
    | 
   ::: /usr/local/cargo/registry/src/github.com-1ecc6299db9ec823/cargo-make-0.24.1/src/lib/cache.rs:106:47
    |
106 |   ...                   Err(error) => info!(
    |  _____________________________________-
107 | | ...                       "Error while writing to cache file: {:#?}, error: {:#?}",
108 | | ...                       &file_name, error
109 | | ...                   ),
    | |                       -
    | |                       |
    | |_______________________caused by the macro expansion here
    |                         help: you might be missing a semicolon here: `;`
    |
    = note: the usage of `log_impl!` is likely invalid in expression context
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

...

It seems to break relevant and gfx-backend-vulkan too.

This also breaks goblin

I've yanked the 0.4.9 release.

@KodrAus It looks like all of the code blocks in the log_impl macro need to be contained in a block - how did CI pass after the KV stuff landed?

Install cargo-make is working again, thank you for the very quick fix!

@sfackler Hm that's a good question... I'll check this out now.

Ok, it looks like with our macro tests being brand new we didn't have coverage for the macros in expression context so CI didn't pick this up. I also totally missed this when reviewing the original implementation.

I'm putting together a PR now to fix this up.

I've just published 0.4.10 that fixes this up.