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Compile error on darwin: proc-macro derive panicked #1573

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@rwz

Description

@rwz

Attempting to run cargo install rustfmt on OSX Sierra 10.12.5 with rustc 1.17.0 produces the following output:

~ > cargo install rustfmt
    Updating registry `https://github.com/rust-lang/crates.io-index`

 Downloading rustfmt v0.8.4
  Installing rustfmt v0.8.4
 Downloading serde_derive v1.0.7
 Downloading getopts v0.2.14
 Downloading env_logger v0.4.2
 Downloading term v0.4.5
 Downloading unicode-segmentation v1.2.0
 Downloading diff v0.1.10
 Downloading serde v1.0.7
 Downloading syntex_syntax v0.58.1
 Downloading multimap v0.3.0
 Downloading strings v0.0.1
 Downloading itertools v0.5.10
 Downloading toml v0.4.1
 Downloading serde_json v1.0.2
 Downloading syntex_errors v0.58.1
 Downloading regex v0.2.2
 Downloading log v0.3.7
 Downloading serde_derive_internals v0.15.0
 Downloading syn v0.11.11
 Downloading quote v0.3.15
 Downloading synom v0.11.3
 Downloading aho-corasick v0.6.3
 Downloading utf8-ranges v1.0.0
 Downloading regex-syntax v0.4.1
 Downloading memchr v1.0.1
 Downloading thread_local v0.3.3
 Downloading libc v0.2.23
 Downloading unreachable v0.1.1
 Downloading syntex_pos v0.58.1
 Downloading rustc-serialize v0.3.24
 Downloading bitflags v0.8.2
 Downloading either v1.1.0
 Downloading dtoa v0.4.1
 Downloading itoa v0.3.1
 Downloading num-traits v0.1.37
 Downloading walkdir v1.0.7
 Downloading same-file v0.1.3
 Downloading thread-id v3.1.0
   Compiling log v0.3.7
   Compiling void v1.0.2
   Compiling either v1.1.0
   Compiling term v0.4.5
   Compiling dtoa v0.4.1
   Compiling diff v0.1.10
   Compiling quote v0.3.15
   Compiling serde v1.0.7
   Compiling itertools v0.5.10
   Compiling unicode-xid v0.0.4
   Compiling synom v0.11.3
   Compiling itoa v0.3.1
   Compiling syn v0.11.11
   Compiling strings v0.0.1
   Compiling getopts v0.2.14
   Compiling bitflags v0.8.2
   Compiling num-traits v0.1.37
   Compiling multimap v0.3.0
   Compiling utf8-ranges v1.0.0
   Compiling regex-syntax v0.4.1
   Compiling same-file v0.1.3
   Compiling walkdir v1.0.7
   Compiling serde_json v1.0.2
   Compiling rustfmt v0.8.4
   Compiling toml v0.4.1
   Compiling serde_derive_internals v0.15.0
   Compiling unreachable v0.1.1
   Compiling libc v0.2.23
   Compiling memchr v1.0.1
   Compiling aho-corasick v0.6.3
   Compiling thread-id v3.1.0
   Compiling thread_local v0.3.3
   Compiling rustc-serialize v0.3.24
   Compiling regex v0.2.2
   Compiling unicode-segmentation v1.2.0
   Compiling serde_derive v1.0.7
   Compiling syntex_pos v0.58.1
   Compiling syntex_errors v0.58.1
   Compiling syntex_syntax v0.58.1
   Compiling env_logger v0.4.2
error: proc-macro derive panicked
   --> .cargo/registry/src/github.1485827954.workers.dev-1ecc6299db9ec823/rustfmt-0.8.4/src/config.rs:213:18
    |
213 |         #[derive(Deserialize, Clone)]
    |                  ^^^^^^^^^^^
...
329 | create_config! {
    | - in this macro invocation
    |
    = help: message: proc_macro::__internal::with_parse_sess() called before set_parse_sess()!

error: failed to compile `rustfmt v0.8.4`, intermediate artifacts can be found at `/var/folders/85/qvgvg3597k198f316dqt07v40000gn/T/cargo-install.5QV9zfspwI6h`

Caused by:
  Could not compile `rustfmt`.

To learn more, run the command again with --verbose.

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