cargo +nightly install racer Error

[Thomas28M]

I have tried to install racer but I keep getting this error. I couldn't find it anywhere else.

Info

$ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home: /home/thomas28/.rustup

installed toolchains

stable-x86_64-unknown-linux-gnu (default)
nightly-x86_64-unknown-linux-gnu

active toolchain

stable-x86_64-unknown-linux-gnu (default)
rustc 1.60.0 (7737e0b5c 2022-04-04)

$rustup update
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: syncing channel updates for 'nightly-x86_64-unknown-linux-gnu'
info: checking for self-updates

stable-x86_64-unknown-linux-gnu unchanged - rustc 1.60.0 (7737e0b5c 2022-04-04)
nightly-x86_64-unknown-linux-gnu unchanged - rustc 1.62.0-nightly (f4ec0e7cf 2022-04-22)

info: cleaning up downloads & tmp directories

Fail

$cargo +nightly install racer
Updating crates.io index
Installing racer v2.2.2
Compiling proc-macro2 v1.0.37
Compiling unicode-xid v0.2.2
Compiling syn v1.0.91
Compiling serde_derive v1.0.136
Compiling serde v1.0.136
Compiling memchr v2.4.1
Compiling libc v0.2.124
Compiling serde_json v1.0.79
Compiling log v0.4.16
Compiling cfg-if v1.0.0
Compiling itoa v1.0.1
Compiling unicode-width v0.1.9
Compiling ryu v1.0.9
Compiling quick-error v1.2.3
Compiling regex-syntax v0.6.25
Compiling termcolor v1.1.3
Compiling vec_map v0.8.2
Compiling convert_case v0.4.0
Compiling strsim v0.8.0
Compiling ansi_term v0.12.1
Compiling bitflags v1.3.2
Compiling lazy_static v1.4.0
Compiling humantime v2.1.0
Compiling lazycell v1.3.0
Compiling textwrap v0.11.0
Compiling humantime v1.3.0
Compiling quote v1.0.18
Compiling aho-corasick v0.7.18
Compiling atty v0.2.14
Compiling regex v1.5.5
Compiling clap v2.34.0
Compiling env_logger v0.7.1
Compiling derive_more v0.99.17
Compiling racer-interner v0.1.0
Compiling rls-span v0.5.4
Compiling racer-cargo-metadata v0.1.2
Compiling racer v2.2.2
error[E0053]: method fallback_fluent_bundle has an incompatible type for trait
--> /home/thomas28/.cargo/registry/src/github.com-1ecc6299db9ec823/racer-2.2.2/src/racer/ast.rs:36:41
|
36 | fn fallback_fluent_bundle(&self) -> &Lrc<rustc_errors::FluentBundle> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| expected struct fluent_bundle::bundle::FluentBundle, found struct Lrc
| help: change the output type to match the trait: &fluent_bundle::bundle::FluentBundle<fluent_bundle::resource::FluentResource, intl_memoizer::IntlLangMemoizer>
|
= note: expected fn pointer fn(&DummyEmitter) -> &fluent_bundle::bundle::FluentBundle<fluent_bundle::resource::FluentResource, intl_memoizer::IntlLangMemoizer>
found fn pointer fn(&DummyEmitter) -> &Lrc<fluent_bundle::bundle::FluentBundle<fluent_bundle::resource::FluentResource, intl_memoizer::IntlLangMemoizer>>

error[E0023]: this pattern has 5 fields, but the corresponding tuple variant has 6 fields
--> /home/thomas28/.cargo/registry/src/github.com-1ecc6299db9ec823/racer-2.2.2/src/racer/ast.rs:232:31
|
232 | visit::FnKind::Fn(_, _, ref fn_sig, _, ) => &*fn_sig.decl,
| ^ ^ ^^^^^^^^^^ ^ ^ expected 6 fields, found 5
|
help: use _ to explicitly ignore each field
|
232 | visit::FnKind::Fn(, _, ref fn_sig, _, _, _) => &*fn_sig.decl,
| +++

error[E0023]: this pattern has 5 fields, but the corresponding tuple variant has 6 fields
--> /home/thomas28/.cargo/registry/src/github.com-1ecc6299db9ec823/racer-2.2.2/src/racer/ast.rs:1261:31
|
1261 | visit::FnKind::Fn(_, _, ref fn_sig, _, ) => &*fn_sig.decl,
| ^ ^ ^^^^^^^^^^ ^ ^ expected 6 fields, found 5
|
help: use _ to explicitly ignore each field
|
1261 | visit::FnKind::Fn(, _, ref fn_sig, _, _, _) => &*fn_sig.decl,
| +++

Some errors have detailed explanations: E0023, E0053.
For more information about an error, try rustc --explain E0023.
error: could not compile racer due to 3 previous errors
warning: build failed, waiting for other jobs to finish...
error: failed to compile racer v2.2.2, intermediate artifacts can be found at /tmp/cargo-installODCwvH

[calebcartwright]

Please take a look at #1181

[charmitro]

I had the same issue. I used cargo install racer and everything worked out. They specify the nightly toolchain version on their .toml files.