`mdbook test` fails

[Raymi306]

From the README:

To preview your changes locally:

cargo install mdbook --version "^0.4" --force
mdbook build --open
mdbook test

$ mdbook test

. . .

Couldn't compile the test.

failures:
    update-0.8.md - Updating_to_0_8::Core_features::_::_no_longer_implements_ (line 48)
    update-0.8.md - Updating_to_0_8::Core_features::_::_no_longer_implements_ (line 55)
    update-0.8.md - Updating_to_0_8::Distributions (line 124)
    update-0.8.md - Updating_to_0_8::Distributions (line 133)
    update-0.8.md - Updating_to_0_8::Distributions (line 164)
    update-0.8.md - Updating_to_0_8::Distributions (line 169)

test result: FAILED. 0 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s

. . .

[dhardy]

Yes, mdbook fails to resolve dependencies:

---- quick-start.md - Quick_start::Fixed_seed_RNGs (line 84) stdout ----
error[E0463]: can't find crate for `rand`
 --> quick-start.md:85:1
  |
2 | extern crate rand;
  | ^^^^^^^^^^^^^^^^^^ can't find crate

error[E0463]: can't find crate for `rand_chacha`
 --> quick-start.md:86:1
  |
3 | extern crate rand_chacha;
  | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate

error[E0432]: unresolved import `rand_0_5`
 --> update-0.5.md:78:5
  |
3 | use rand_0_5::{ChaChaRng, FromEntropy};
  |     ^^^^^^^^ you might be missing crate `rand_0_5`
  |
help: consider importing the `rand_0_5` crate
  |
2 + extern crate rand_0_5;
  |

It's not easy to solve properly; mdbook needs its own Cargo.toml probably. See e.g. rust-lang/mdBook#394.

We do have a work-around however:

cd tests
./generate.sh
cargo test