miden binary fails to deserialize std.masl

[PhilippGackstatter]

When starting with a clean target folder and on the current main branch (fbce798a53967310463ee02e0e681617781406df) the miden binary built with make exec always errors out when passing the std.masl file from the build process with the -l flag.
(It is independent of whether the passed example needs the stdlib or not.)

./target/optimized/miden run -a miden/examples/fib/fib.masm -l target/optimized/build/miden-stdlib-be5cd533fb680a98/out/assets/std.masl
===============================================================================
Run program: miden/examples/fib/fib.masm
-------------------------------------------------------------------------------
Error:   x Main thread panicked.
  |-> at ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/
  |   winter-utils-0.9.1/src/serde/byte_reader.rs:507:26
  `-> range end index 1 out of range for slice of length 0
  help: set the `RUST_BACKTRACE=1` environment variable to display a
        backtrace.

[bobbinth]

This was a bug in winter-utils. It should be fixed in winter-utils v0.9.2. If you run cargo update, does it fix things?

[PhilippGackstatter]

Ran cargo update and rebuilt but same category of error:

./target/optimized/miden run -a miden/examples/fib/fib.masm -l target/optimized/build/miden-stdlib-8caab94c0d35f7de/out/assets/std.masl 
===============================================================================
Run program: miden/examples/fib/fib.masm
-------------------------------------------------------------------------------
Error:   x Main thread panicked.
  |-> at ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/
  |   winter-utils-0.9.2/src/serde/byte_reader.rs:507:30
  `-> range end index 249 out of range for slice of length 36
  help: set the `RUST_BACKTRACE=1` environment variable to display a
        backtrace.

[bobbinth]

Ah - then this is a legit bug.