"mdbook test" stopped working with 0.1.8

[RalfJung]

The update from 0.1.7 to 0.1.8 broke mdbook test in the nomicon. It now fails with

2018-07-16 14:41:02 [ERROR] (mdbook::utils): Error: Unable to open the file
2018-07-16 14:41:02 [ERROR] (mdbook::utils): 	Caused By: No such file or directory (os error 2)

I am not sure which file it is even trying to open (the error is not very helpful), but strace indicates it is some index.md:

stat("/home/r/src/rust/nomicon/src/index.md", 0x7fff52e9e770) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/home/r/src/rust/nomicon/src/index.md", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

The nomicon works fine with mdbook 0.1.7 (well, there is a test failure but we are getting much further than the error it shows with 0.1.8). Also see rust-lang/nomicon#78.

I believe this is a bug in mdbook because the update claims to be semver-compatible but, as this example shows, it is not.

[RalfJung]

Thanks. :)

Would you mind giving a heads-up when a new release is made with this? Then I can update the nomicon to no longer pin an older version.

[mattico]

Sure thing! I'll make a new release as soon as I get crates.io permissions.

[Michael-F-Bryan]

@mattico I just did the cargo owner --add thing, so you should receive some sort of ownership invitation from crates.io soon.

[mattico]

Thanks @Michael-F-Bryan!

@RalfJung 0.1.9 is on crates.io, and binaries should be available soon.

[RalfJung]

Thanks! I updated the nomicon.