Quickstart guide won't build

[kmerrill18]

I was following the quickstart guide here just to get my feet wet with circ, and I found step 2 failed with this output:

$ circ % ./driver.py -b
Running: cargo check --tests --examples --benches --bins --features poly,bellman,zok,r1cs
warning: hiding a lifetime that's elided elsewhere is confusing
  --> third_party/ZoKrates/zokrates_parser/src/lib.rs:15:21
   |
15 | pub fn parse(input: &str) -> Result<Pairs<Rule>, Error<Rule>> {
   |                     ^^^^            ----------- the same lifetime is hidden here
   |                     |
   |                     the lifetime is elided here
   |
   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
help: use `'_` for type paths
   |
15 | pub fn parse(input: &str) -> Result<Pairs<'_, Rule>, Error<Rule>> {
   |                                           +++

    Checking flint-sys v0.7.3
warning: `zokrates_parser` (lib) generated 1 warning
warning: hiding a lifetime that's elided elsewhere is confusing
    --> third_party/ZoKrates/zokrates_pest_ast/src/lib.rs:1127:28
     |
1127 | pub fn generate_ast(input: &str) -> Result<ast::File, Error> {
     |                            ^^^^            --------- the same lifetime is hidden here
     |                            |
     |                            the lifetime is elided here
     |
     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
help: use `'_` for type paths
     |
1127 | pub fn generate_ast(input: &str) -> Result<ast::File<'_>, Error> {
     |                                                     ++++

warning: `zokrates_pest_ast` (lib) generated 1 warning
    Checking circ_fields v0.1.0 (/Users/kmerrill/Documents/image-processing-age-verif/circ/circ_fields)
    Checking rug-polynomial v0.2.5
error: hiding a lifetime that's elided elsewhere is confusing
   --> circ_fields/src/lib.rs:317:17
    |
317 |     fn full_cow(&self) -> std::borrow::Cow<FullFieldV> {
    |                 ^^^^^     ---------------------------- the same lifetime is hidden here
    |                 |
    |                 the lifetime is elided here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
note: the lint level is defined here
   --> circ_fields/src/lib.rs:4:9
    |
4   | #![deny(warnings)]
    |         ^^^^^^^^
    = note: `#[deny(mismatched_lifetime_syntaxes)]` implied by `#[deny(warnings)]`
help: use `'_` for type paths
    |
317 |     fn full_cow(&self) -> std::borrow::Cow<'_, FullFieldV> {
    |                                            +++

error: could not compile `circ_fields` (lib) due to 1 previous error
The command
	cargo check --tests --examples --benches --bins --features poly,bellman,zok,r1cs
failed with exit code 101