Rust 多个 crate 由于权限被拒绝而无法编译

Question

当我构建具有依赖项的项目时，构建脚本因权限被拒绝而失败。每个板条箱都不会发生这种情况。这是尝试构建 WGPU 项目时的输出。

error: failed to run custom build command for `objc_exception v0.1.2`

Caused by:
  process didn't exit successfully: `/Users/64001830/wgpu-test/target/debug/build/objc_exception-f7c40ee498546635/build-script-build` (exit status: 1)
  --- stdout
  TARGET = Some("x86_64-apple-darwin")
  OPT_LEVEL = Some("0")
  HOST = Some("x86_64-apple-darwin")
  cargo:rerun-if-env-changed=CC_x86_64-apple-darwin
  CC_x86_64-apple-darwin = None
  cargo:rerun-if-env-changed=CC_x86_64_apple_darwin
  CC_x86_64_apple_darwin = None
  cargo:rerun-if-env-changed=HOST_CC
  HOST_CC = None
  cargo:rerun-if-env-changed=CC
  CC = Some("/usr/bin/")
  cargo:rerun-if-env-changed=CFLAGS_x86_64-apple-darwin
  CFLAGS_x86_64-apple-darwin = None
  cargo:rerun-if-env-changed=CFLAGS_x86_64_apple_darwin
  CFLAGS_x86_64_apple_darwin = None
  cargo:rerun-if-env-changed=HOST_CFLAGS
  HOST_CFLAGS = None
  cargo:rerun-if-env-changed=CFLAGS
  CFLAGS = None
  cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some("true")
  CARGO_CFG_TARGET_FEATURE = Some("cmpxchg16b,fxsr,llvm14-builtins-abi,sse,sse2,sse3,ssse3")
  running: "/usr/bin/" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-2" "-fno-omit-frame-pointer" "-m64" "-arch" "x86_64" "-Wall" "-Wextra" "-o" "/Users/64001830/wgpu-test/target/debug/build/objc_exception-59a44c9c89f7e2b5/out/extern/exception.o" "-c" "extern/exception.m"

  --- stderr


  error occurred: Command "/usr/bin/" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-2" "-fno-omit-frame-pointer" "-m64" "-arch" "x86_64" "-Wall" "-Wextra" "-o" "/Users/64001830/wgpu-test/target/debug/build/objc_exception-59a44c9c89f7e2b5/out/extern/exception.o" "-c" "extern/exception.m" with args "bin" failed to start: Os { code: 13, kind: PermissionDenied, message: "Permission denied" }

我尝试过重新启动、新项目、卸载并重新安装 Rust。

Answer 1

从错误（特别是这一行：

CC = Some("/usr/bin/")

）中，您可以看到 C 编译器环境变量 (

CC

) 设置为

/usr/bin/

，这不是有效的 C 编译器。

您可以清除环境变量或将其设置为有用的内容，例如

/usr/bin/cc

、

/usr/bin/gcc

或您选择的 C 编译器的路径。