lopdf 0.30.0 fails to build with default_features = false

[Asger Hautop Drewsen]

Steps to reproduce:

$ cargo new lopdf-test
$ cd lopdf-test
$ cargo add lopdf@=0.30.0 --no-default-features
$ cargo build
   Compiling cfg-if v1.0.0
   Compiling crc32fast v1.3.2
   Compiling log v0.4.17
   Compiling adler v1.0.2
   Compiling time-core v0.1.0
   Compiling itoa v1.0.6
   Compiling weezl v0.1.7
   Compiling linked-hash-map v0.5.6
   Compiling encoding_rs v0.8.32
   Compiling miniz_oxide v0.6.2
   Compiling time v0.3.20
   Compiling flate2 v1.0.25
   Compiling lopdf v0.30.0
error[E0432]: unresolved import `object_stream`
  --> /home/tyilo/.cargo/registry/src/github.com-1ecc6299db9ec823/lopdf-0.30.0/src/lib.rs:13:9
   |
13 | pub use object_stream::ObjectStream;
   |         ^^^^^^^^^^^^^ use of undeclared crate or module `object_stream`

error[E0432]: unresolved import `reader`
  --> /home/tyilo/.cargo/registry/src/github.com-1ecc6299db9ec823/lopdf-0.30.0/src/lib.rs:41:9
   |
41 | pub use reader::Reader;
   |         ^^^^^^ use of undeclared crate or module `reader`

For more information about this error, try `rustc --explain E0432`.
error: could not compile `lopdf` due to 2 previous errors
warning: build failed, waiting for other jobs to finish...

[Arif Driessen]

Thanks for the simple reproducible steps, while i'm sure a patch is trivial to implement, in the meantime,

cargo add lopdf@=0.30.0 --no-default-features --features nom_parser

will build, and will make lopdf much faster anyway.

[Asger Hautop Drewsen]

I'm only using lopdf to create PDF's not parse existing ones. So I don't really care how slow parsing is :)