macOS下VSCode rust-analyzer权限拒绝无法加载工作区问题求助

目标 #

在macOS系统上配置Visual Studio Code（VSCode）用于Rust开发。此前使用官方Rust扩展可完成基础开发，但运行表现不稳定，了解到rust-analyzer扩展可提供更优质的开发体验，因此选择安装该扩展。

问题现象 #

安装rust-analyzer扩展后，持续抛出如下错误，无法正常工作：

rust-analyzer failed to load workspace: "/Users/michaelbailey/.cargo" "--version" failed: Permission denied (os error 13)

经排查判断，插件错误地尝试执行.cargo目录本身，而非目录下的cargo可执行文件：

• 执行错误路径命令时返回权限不足：

$ /Users/michaelbailey/.cargo --version  
zsh: permission denied: /Users/michaelbailey/.cargo

• 执行正确路径命令可正常返回cargo版本信息：

$ /Users/michaelbailey/.cargo/bin/cargo --version 
cargo 1.61.0 (a028ae42f 2022-04-29)

该路径识别错误导致rust-analyzer无法加载任何Rust项目。

已尝试的排查操作 #

• 重新安装Rust-analyzer扩展
• 禁用其他所有Rust相关插件排除冲突
• 切换至rust-analyzer扩展预发布版本
• 从Rust官方网站重新安装Rust工具链
• 清除所有Rust相关配置项
• 新建空白测试项目，排除单项目配置错误的可能

求助需求 #

• 获取配置rust-analyzer使其指向正确cargo可执行文件路径的方法
• 获取其他可修复该rust-analyzer加载失败问题的可行方案

运行日志 #

VSCode输出面板中rust-analyzer的运行日志如下：

INFO [6/9/2022, 6:10:00 PM]: Extension version: 0.3.1083
INFO [6/9/2022, 6:10:00 PM]: Using configuration {
  cargoRunner: null,
  runnableEnv: null,
  server: { path: null, extraEnv: null },
  trace: { server: 'off', extension: false },
  debug: {
    engine: 'auto',
    sourceFileMap: {
      '/rustc/<id>': '${env:USERPROFILE}/.rustup/toolchains/<toolchain-id>/lib/rustlib/src/rust'
    },
    openDebugPane: false,
    engineSettings: {}
  },
  assist: { expressionFillDefault: 'todo' },
  cachePriming: { enable: true, numThreads: 0 },
  cargo: {
    autoreload: true,
    buildScripts: { enable: true, overrideCommand: null, useRustcWrapper: true },
    features: [],
    noDefaultFeatures: false,
    noSysroot: false,
    target: null,
    unsetTest: [ 'core' ]
  },
  checkOnSave: {
    allTargets: true,
    command: 'check',
    enable: true,
    extraArgs: [],
    features: null,
    noDefaultFeatures: null,
    overrideCommand: null,
    target: null
  },
  completion: {
    autoimport: { enable: true },
    autoself: { enable: true },
    callable: { snippets: 'fill_arguments' },
    postfix: { enable: true },
    privateEditable: { enable: false },
    snippets: {
      custom: {
        'Arc::new': {
          postfix: 'arc',
          body: 'Arc::new(${receiver})',
          requires: 'std::sync::Arc',
          description: 'Put the expression into an `Arc`',
          scope: 'expr'
        },
        'Rc::new': {
          postfix: 'rc',
          body: 'Rc::new(${receiver})',
          requires: 'std::rc::Rc',
          description: 'Put the expression into an `Rc`',
          scope: 'expr'
        },
        'Box::pin': {
          postfix: 'pinbox',
          body: 'Box::pin(${receiver})',
          requires: 'std::boxed::Box',
          description: 'Put the expression into a pinned `Box`',
          scope: 'expr'
        },
        Ok: {
          postfix: 'ok',
          body: 'Ok(${receiver})',
          description: 'Wrap the expression in a `Result::Ok`',
          scope: 'expr'
        },
        Err: {
          postfix: 'err',
          body: 'Err(${receiver})',
          description: 'Wrap the expression in a `Result::Err`',
          scope: 'expr'
        },
        Some: {
          postfix: 'some',
          body: 'Some(${receiver})',
          description: 'Wrap the expression in an `Option::Some`',
          scope: 'expr'
        }
      }
    }
  },
  diagnostics: {
    disabled: [],
    enable: true,
    experimental: { enable: false },
    remapPrefix: {},
    warningsAsHint: [],
    warningsAsInfo: []
  },
  files: { excludeDirs: [], watcher: 'client' },
  highlightRelated: {
    breakPoints: { enable: true },
    exitPoints: { enable: true },
    references: { enable: true },
    yieldPoints: { enable: true }
  },
  hover: {
    actions: {
      debug: { enable: true },
      enable: true,
      gotoTypeDef: { enable: true },
      implementations: { enable: true },
      references: { enable: false },
      run: { enable: true }
    },
    documentation: { enable: true },
    links: { enable: true }
  },
  imports: {
    granularity: { enforce: false, group: 'crate' },
    group: { enable: true },
    merge: { glob: true },
    prefix: 'plain'
  },
  inlayHints: {
    bindingModeHints: { enable: false },
    chainingHints: { enable: true },
    closingBraceHints: { enable: true, minLines: 25 },
    closureReturnTypeHints: { enable: 'never' },
    lifetimeElisionHints: { enable: 'never', useParameterNames: false },
    maxLength: 25,
    parameterHints: { enable: true },
    reborrowHints: { enable: 'never' },
    renderColons: true,
    typeHints: {
      enable: true,
      hideClosureInitialization: false,
      hideNamedConstructor: false
    }
  },
  joinLines: {
    joinAssignments: true,
    joinElseIf: true,
    removeTrailingComma: true,
    unwrapTrivialBlock: true
  },
  lens: {
    debug: { enable: true },
    enable: true,
    forceCustomCommands: true,
    implementations: { enable: true },
    references: {
      adt: { enable: false },
      enumVariant: { enable: false },
      method: { enable: false },
      trait: { enable: false }
    },
    run: { enable: true }
  },
  linkedProjects: [],
  lru: { capacity: null },
  notifications: { cargoTomlNotFound: true },
  procMacro: {
    attributes: { enable: true },
    enable: true,
    ignored: {},
    server: null
  },
  runnables: { command: null, extraArgs: [] },
  rustc: { source: null },
  rustfmt: {
    extraArgs: [],
    overrideCommand: null,
    rangeFormatting: { enable: false }
  },
  semanticHighlighting: { strings: { enable: true } },
  signatureInfo: { detail: 'full', documentation: { enable: true } },
  typing: { autoClosingAngleBrackets: { enable: false } },
  workspace: {
    symbol: { search: { kind: 'only_types', limit: 128, scope: 'workspace' } }
  }
}
INFO [6/9/2022, 6:10:00 PM]: PersistentState: { serverVersion: '0.3.1083' }
INFO [6/9/2022, 6:10:00 PM]: Using server binary at /Users/michaelbailey/.vscode/extensions/rust-lang.rust-analyzer-0.3.1083-darwin-x64/server/rust-analyzer
INFO [6/9/2022, 6:10:01 PM]: Extension version: 0.3.1083
INFO [6/9/2022, 6:10:01 PM]: Using configuration {
  cargoRunner: null,
  runnableEnv: null,
  server: { path: null, extraEnv: null },
  trace: { server: 'off', extension: false },
  debug: {
    engine: 'auto',
    sourceFileMap: {
      '/rustc/<id>': '${env:USERPROFILE}/.rustup/toolchains/<toolchain-id>/lib/rustlib/src/rust'
    },
    openDebugPane: false,
    engineSettings: {}
  },
  assist: { expressionFillDefault: 'todo' },
  cachePriming: { enable: true, numThreads: 0 },
  cargo: {
    autoreload: true,
    buildScripts: { enable: true, overrideCommand: null, useRustcWrapper: true },
    features: [],
    noDefaultFeatures: false,
    noSysroot: false,
    target: null,
    unsetTest: [ 'core' ]
  },
  checkOnSave: {
    allTargets: true,
    command: 'check',
    enable: true,
    extraArgs: [],
    features: null,
    noDefaultFeatures: null,
    overrideCommand: null,
    target: null
  },
  completion: {
    autoimport: { enable: true },
    autoself: { enable: true },
    callable: { snippets: 'fill_arguments' },
    postfix: { enable: true },
    privateEditable: { enable: false },
    snippets: {
      custom: {
        'Arc::new': {
          postfix: 'arc',
          body: 'Arc::new(${receiver})',
          requires: 'std::sync::Arc',
          description: 'Put the expression into an `Arc`',
          scope: 'expr'
        },
        'Rc::new': {
          postfix: 'rc',
          body: 'Rc::new(${receiver})',
          requires: 'std::rc::Rc',
          description: 'Put the expression into an `Rc`',
          scope: 'expr'
        },
        'Box::pin': {
          postfix: 'pinbox',
          body: 'Box::pin(${receiver})',
          requires: 'std::boxed::Box',
          description: 'Put the expression into a pinned `Box`',
          scope: 'expr'
        },
        Ok: {
          postfix: 'ok',
          body: 'Ok(${receiver})',
          description: 'Wrap the expression in a `Result::Ok`',
          scope: 'expr'
        },
        Err: {
          postfix: 'err',
          body: 'Err(${receiver})',
          description: 'Wrap the expression in a `Result::Err`',
          scope: 'expr'
        },
        Some: {
          postfix: 'some',
          body: 'Some(${receiver})',
          description: 'Wrap the expression in an `Option::Some`',
          scope: 'expr'
        }
      }
    }
  },
  diagnostics: {
    disabled: [],
    enable: true,
    experimental: { enable: false },
    remapPrefix: {},
    warningsAsHint: [],
    warningsAsInfo: []
  },
  files: { excludeDirs: [], watcher: 'client' },
  highlightRelated: {
    breakPoints: { enable: true },
    exitPoints: { enable: true },
    references: { enable: true },
    yieldPoints: { enable: true }
  },
  hover: {
    actions: {
      debug: { enable: true },
      enable: true,
      gotoTypeDef: { enable: true },
      implementations: { enable: true },
      references: { enable: false },
      run: { enable: true }
    },
    documentation: { enable: true },
    links: { enable: true }
  },
  imports: {
    granularity: { enforce: false, group: 'crate' },
    group: { enable: true },
    merge: { glob: true },
    prefix: 'plain'
  },
  inlayHints: {
    bindingModeHints: { enable: false },
    chainingHints: { enable: true },
    closingBraceHints: { enable: true, minLines: 25 },
    closureReturnTypeHints: { enable: 'never' },
    lifetimeElisionHints: { enable: 'never', useParameterNames: false },
    maxLength: 25,
    parameterHints: { enable: true },
    reborrowHints: { enable: 'never' },
    renderColons: true,
    typeHints: {
      enable: true,
      hideClosureInitialization: false,
      hideNamedConstructor: false
    }
  },
  joinLines: {
    joinAssignments: true,
    joinElseIf: true,
    removeTrailingComma: true,
    unwrapTrivialBlock: true
  },
  lens: {
    debug: { enable: true },
    enable: true,
    forceCustomCommands: true,
    implementations: { enable: true },
    references: {
      adt: { enable: false },
      enumVariant: { enable: false },
      method: { enable: false },
      trait: { enable: false }
    },
    run: { enable: true }
  },
  linkedProjects: [],
  lru: { capacity: null },
  notifications: { cargoTomlNotFound: true },
  procMacro: {
    attributes: { enable: true },
    enable: true,
    ignored: {},
    server: null
  },
  runnables: { command: null, extraArgs: [] },
  rustc: { source: null },
  rustfmt: {
    extraArgs: [],
    overrideCommand: null,
    rangeFormatting: { enable: false }
  },
  semanticHighlighting: { strings: { enable: true } },
  signatureInfo: { detail: 'full', documentation: { enable: true } },
  typing: { autoClosingAngleBrackets: { enable: false } },
  workspace: {
    symbol: { search: { kind: 'only_types', limit: 128, scope: 'workspace' } }
  }
}

内容的提问来源于stack exchange，提问作者Michael Bailey