cargo +nightly build racer Error

[gosoon]

Help,build failed in mac.

➜  racer git:(master) cargo -V
cargo 1.62.0-nightly (1ef1e0a12 2022-03-31)

➜  racer git:(master) rustup show
Default host: x86_64-apple-darwin
rustup home:  /Users/feiyu/.rustup

installed toolchains
--------------------

stable-x86_64-apple-darwin (default)
nightly-2022-04-06-x86_64-apple-darwin
nightly-x86_64-apple-darwin

active toolchain
----------------

nightly-2022-04-06-x86_64-apple-darwin (overridden by '/Users/feiyu/go/src/github.com/racer-rust/racer/rust-toolchain.toml')
rustc 1.62.0-nightly (306ba8357 2022-04-05)

➜  racer git:(master) cargo +nightly build --release
   Compiling racer-interner v0.1.0 
   Compiling racer-cargo-metadata v0.1.2
   Compiling racer v2.2.2 
error[E0432]: unresolved import `rustc_ast::ast::BindingMode`
  --> src/racer/ast_types.rs:21:26
   |
21 | pub use rustc_ast::ast::{BindingMode, Mutability};
   |                          ^^^^^^^^^^^ no `BindingMode` in `ast`

error[E0407]: method `fluent_bundle` is not a member of trait `Emitter`
  --> src/racer/ast.rs:33:5
   |
33 | /     fn fluent_bundle(&self) -> Option<&Lrc<rustc_errors::FluentBundle>> {
34 | |         None
35 | |     }
   | |_____^ not a member of trait `Emitter`

error[E0407]: method `fallback_fluent_bundle` is not a member of trait `Emitter`
  --> src/racer/ast.rs:36:5
   |
36 | /     fn fallback_fluent_bundle(&self) -> &Lrc<rustc_errors::FluentBundle> {
37 | |         unimplemented!("diagnostic translations are unimplemented in racer");
38 | |     }
   | |_____^ not a member of trait `Emitter`

error[E0412]: cannot find type `Lit` in module `ast`
   --> src/racer/ast_types.rs:153:39
    |
153 |     pub(crate) fn from_lit(lit: &ast::Lit) -> Option<Ty> {
    |                                       ^^^ not found in `ast`
    |
help: consider importing this struct
    |
2   | use rustc_ast::token::Lit;
    |
help: if you import `Lit`, refer to it directly
    |
153 -     pub(crate) fn from_lit(lit: &ast::Lit) -> Option<Ty> {
153 +     pub(crate) fn from_lit(lit: &Lit) -> Option<Ty> {
    |

error[E0532]: expected tuple struct or tuple variant, found unit variant `LitKind::Err`
   --> src/racer/ast_types.rs:168:13
    |
168 |             LitKind::Err(_) => None,
    |             ^^^^^^^^^^^^^^^
   --> /rustc/c6fcdb690609769a240fc8ab0de0ce68d5ea7dba/compiler/rustc_ast/src/ast.rs:1816:5
    |
    = note: `LitKind::Err` defined here
    |
help: use this syntax instead
    |
168 |             LitKind::Err => None,
    |             ~~~~~~~~~~~~
help: consider importing one of these items instead
    |
2   | use core::result::Result::Err;
    |
2   | use std::result::Result::Err;
    |
help: if you import `Err`, refer to it directly
    |
168 -             LitKind::Err(_) => None,
168 +             Err(_) => None,
    |

error[E0277]: the trait bound `DummyEmitter: Translate` is not satisfied
  --> src/racer/ast.rs:25:6
   |
25 | impl Emitter for DummyEmitter {
   |      ^^^^^^^ the trait `Translate` is not implemented for `DummyEmitter`
   |
   = help: the following other types implement trait `Translate`:
             AnnotateSnippetEmitterWriter
             EmitterWriter
             JsonEmitter
             SilentEmitter
note: required by a bound in `Emitter`
  --> /rustc/c6fcdb690609769a240fc8ab0de0ce68d5ea7dba/compiler/rustc_errors/src/emitter.rs:204:1

Some errors have detailed explanations: E0277, E0407, E0412, E0432, E0532.
For more information about an error, try `rustc --explain E0277`.
error: could not compile `racer` due to 6 previous errors
warning: build failed, waiting for other jobs to finish...

[michael-nhat]

I meet those errors too. But install racer on arch by pacman success.

[rags]

+1 Cant install racer in macos. Any work arounds? I tried both rustup and installing from source

[JayanSmart]

+1 I too can't install racer on M1 MacOS. I also tried rustup and installing from source with identical results.

[AddictArts]

+1 Windows, can't install, same issue

[calebcartwright]

Friendly reminder that racer is deprecated, and unsupported

This is also a duplicate of many open and closed issues (#1182, #1181, #1173, #1178, etc.), each of which contains the steps you need to take if you still want to build racer from source (ensure you have a valid nightly toolchain, and use that toolchain to compile; not any arbitrary nightly toolchain)

[Jan-V2]

Friendly reminder that racer is deprecated, and unsupported

You should probably put that at the top of the readme, if you had, i wouldn't be here.

[calebcartwright]

Friendly reminder that racer is deprecated, and unsupported

You should probably put that at the top of the readme, if you had, i wouldn't be here.

Well, for starters you're quoting a comment that includes a link to just such information in the project's readme: https://github.com/racer-rust/racer#disclaimer

In case that's still not direct enough, here's the text inline:

Racer is not actively developped now. Please consider using newer software such as rust-analyzer.

But secondly, I'm not a maintainer of this project and I never have been. I was simply trying to help by answering a recurring question since no one else was.

If you think that additional information in the readme would be helpful, then perhaps you'd consider submitting such a PR yourself and trying to get that merged instead of taking these subtle swipes at other users who don't have write access to this project 😄

[f4th4n]

Same here, I want to install RustAutoComplete but it depends on racer.