error: the `?` operator is not stable error when installing cargo-update
error: the `?` operator is not stable error when installing cargo-update
我正在尝试更新货物:cargo install cargo-update
,但遇到以下错误:
Compiling semver-parser v0.7.0
error: the `?` operator is not stable (see issue #31436)
--> /home/netlab/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/version.rs:56:26
|
56 | let (pre, pre_len) = common::parse_optional_meta(&s[i..], b'-')?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: the `?` operator is not stable (see issue #31436)
--> /home/netlab/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/version.rs:58:30
|
58 | let (build, build_len) = common::parse_optional_meta(&s[i..], b'+')?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: the `?` operator is not stable (see issue #31436)
--> /home/netlab/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/range.rs:133:26
|
133 | let (pre, pre_len) = common::parse_optional_meta(&s[i..], b'-')?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
这取决于您的 Rust 版本 — versions of Rust before 1.13 您将收到错误,因为运算符在这些版本中不稳定。
您的错误消息指的是 a GitHub issue number。
我正在尝试更新货物:cargo install cargo-update
,但遇到以下错误:
Compiling semver-parser v0.7.0
error: the `?` operator is not stable (see issue #31436)
--> /home/netlab/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/version.rs:56:26
|
56 | let (pre, pre_len) = common::parse_optional_meta(&s[i..], b'-')?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: the `?` operator is not stable (see issue #31436)
--> /home/netlab/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/version.rs:58:30
|
58 | let (build, build_len) = common::parse_optional_meta(&s[i..], b'+')?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: the `?` operator is not stable (see issue #31436)
--> /home/netlab/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/range.rs:133:26
|
133 | let (pre, pre_len) = common::parse_optional_meta(&s[i..], b'-')?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
这取决于您的 Rust 版本 — versions of Rust before 1.13 您将收到错误,因为运算符在这些版本中不稳定。
您的错误消息指的是 a GitHub issue number。