Could not build Taskwarrior 3.0.2

[clobrano]

To report a bug...

I downloaded Taskwarrior 3.0.2 and follow the instructions in INSTALL file, and it ended with error

$ dnf install -y cmake make libuuid-devel
$ cmake -DCMAKE_BUILD_TYPE=release .
$ make                            
...  
[ 97%] Linking CXX executable task
/usr/bin/ld: cannot find -ltaskchampion-lib: No such file or directory
collect2: error: ld returned 1 exit status
make[2]: *** [src/CMakeFiles/task_executable.dir/build.make:106: src/task] Error 1
make[1]: *** [CMakeFiles/Makefile2:357: src/CMakeFiles/task_executable.dir/all] Error 2
make: *** [Makefile:156: all] Error 2

I tried to build taskchampion manually, but it also failed

$ cd taskchampion
$ sudo dnf install -y rustc cargo
$ cargo build --release
error[E0282]: type annotations needed for `Box<_>`
  --> /home/clobrano/.cargo/registry/src/index.crates.io-6f17d22bba15001f/time-0.3.20/src/format_description/parse/mod.rs:83:9
   |
83 |     let items = format_items
   |         ^^^^^
...
86 |     Ok(items.into())
   |              ---- type must be known at this point
   |
help: consider giving `items` an explicit type, where the placeholders `_` are specified
   |
83 |     let items: Box<_> = format_items
   |              ++++++++

   Compiling google-cloud-metadata v0.4.0
For more information about this error, try `rustc --explain E0282`.
error: could not compile `time` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...

[djmitche]

What version of rust are you using? Typically the system packages are long out of date. The current minimum version is 1.70.0.

It's generally best to use rustup to install and manage rust.

[clobrano]

To be completely sure I cleaned up rust toolchain and reinstalled via rustup. Now I have

rustc 1.80.1 (3f5fd8dd4 2024-08-06)

and the same issue stated above

[djmitche]

3.0.2 actually doesn't work with the new rust - #3485 fixed a bug around - vs _ that only caused issues with newer versions. That bug is fixed in 3.1.0.

I don't know what's up with the failures to build time though!

[clobrano]

That bug is fixed in 3.1.0

Good, 3.1.0 works just fine, thanks!

3.0.2 actually doesn't work with the new rust

I didn't see any reference to rust version (nor to rust actually) in the INSTALL file.

[djmitche]

Well, it was released before the new rust version was, so that information was as yet unknown :)

[clobrano]

I'm sorry, I've been unclear. What I meant was that the dependency section does not list rust in any way, while it lists make, gcc, clang, etc.

[djmitche]

Oh, good point - I've filed #3606 to fix that.

Did you figure out the issue building the Taskchampion dependencies?

[echo-bravo-yahoo]

Can confirm I had the same issue, and moving to taskwarrior 3.1.0 resolved my issues.

[djmitche]

Cool, sounds like this is fixed then

[clobrano]

Did you figure out the issue building the Taskchampion dependencies?

No, I couldn't understand what the problem was, nor how to fix it

[djmitche]

Can you give the version of rust and the commit hash of taskchampion you are building?

[clobrano]

I might have created some misunderstanding.
With v3.1.0 all good, I can build and use Taskwarrior
With the released v3.0.2 (Taskchampion included), I still had the issue with rustc 1.80.1 (3f5fd8dd4 2024-08-06).

Once I got 3.1.0 working, I didn't continue debugging the original issue

[djmitche]

OK, as long as the most recent version is building 👍🏼