1. 1. What is rustc?
2. 2. Command-line Arguments
3. 1. 2.1. Print Options
   2. 2.2. Codegen Options
4. 3. Jobserver
5. 4. Lints
6. 1. 4.1. Lint Levels
   2. 4.2. Lint Groups
   3. 4.3. Lint Listing
   4. 1. 4.3.1. Allowed-by-default Lints
      2. 4.3.2. Warn-by-default Lints
      3. 4.3.3. Deny-by-default Lints
7. 5. JSON Output
8. 6. Tests
9. 7. Targets
10. 1. 7.1. Built-in Targets
    2. 7.2. Custom Targets
    3. 7.3. Known Issues
11. 8. Profile-guided Optimization
12. 9. Instrumentation-based Code Coverage
13. 10. Linker-plugin-based LTO
14. 11. Checking Conditional Configurations
15. 1. 11.1. Cargo Specifics
16. 12. Exploit Mitigations
17. 13. Symbol Mangling
18. 1. 13.1. v0 Symbol Format
19. 14. Contributing to rustc
22. 15. Platform Support
23. 1. 15.1. Target Tier Policy
    2. 15.2. Template for Target-specific Documentation
    3. 15.3. arm64ec-pc-windows-msvc
    4. 15.4. *-apple-darwin
    5. 1. 15.4.1. i686-apple-darwin
       2. 15.4.2. x86_64h-apple-darwin
       3. 15.4.3. arm64e-apple-darwin
    6. 15.5. *-apple-ios
    7. 1. 15.5.1. *-apple-ios-macabi
       2. 15.5.2. arm64e-apple-ios
    8. 15.6. *-apple-tvos
    9. 1. 15.6.1. arm64e-apple-tvos
    10. 15.7. *-apple-watchos
    11. 15.8. *-apple-visionos
    12. 15.9. aarch64-nintendo-switch-freestanding
    13. 15.10. amdgcn-amd-amdhsa
    14. 15.11. armeb-unknown-linux-gnueabi
    15. 15.12. arm-none-eabi
    16. 1. 15.12.1. armv4t-none-eabi
        2. 15.12.2. armv5te-none-eabi
        3. 15.12.3. armv7r-none-eabi
        4. 15.12.4. armv8r-none-eabihf
        5. 15.12.5. thumbv6m-none-eabi
        6. 15.12.6. thumbv7em-none-eabi*
        7. 15.12.7. thumbv7m-none-eabi
        8. 15.12.8. thumbv8m.base-none-eabi
        9. 15.12.9. thumbv8m.main-none-eabi*
    17. 15.13. armv6k-nintendo-3ds
    18. 15.14. armv7-rtems-eabihf
    19. 15.15. armv7-sony-vita-newlibeabihf
    20. 15.16. armv7-unknown-linux-uclibceabi
    21. 15.17. armv7-unknown-linux-uclibceabihf
    22. 15.18. *-android and *-androideabi
    23. 15.19. *-linux-ohos
    24. 15.20. *-hurd-gnu
    25. 15.21. aarch64-unknown-teeos
    26. 15.22. avr-none
    27. 15.23. *-espidf
    28. 15.24. *-unknown-fuchsia
    29. 15.25. *-unknown-trusty
    30. 15.26. *-kmc-solid_*
    31. 15.27. csky-unknown-linux-gnuabiv2*
    32. 15.28. hexagon-unknown-linux-musl
    33. 15.29. hexagon-unknown-none-elf
    34. 15.30. illumos
    35. 15.31. loongarch*-unknown-linux-*
    36. 15.32. loongarch*-unknown-none*
    37. 15.33. m68k-unknown-linux-gnu
    38. 15.34. m68k-unknown-none-elf
    39. 15.35. mips64-openwrt-linux-musl
    40. 15.36. mipsel-sony-psx
    41. 15.37. mipsel-unknown-linux-gnu
    42. 15.38. mips*-mti-none-elf
    43. 15.39. mipsisa*r6*-unknown-linux-gnu*
    44. 15.40. nvptx64-nvidia-cuda
    45. 15.41. powerpc-unknown-openbsd
    46. 15.42. powerpc-unknown-linux-gnuspe
    47. 15.43. powerpc-unknown-linux-muslspe
    48. 15.44. powerpc64-ibm-aix
    49. 15.45. powerpc64-unknown-linux-musl
    50. 15.46. powerpc64le-unknown-linux-gnu
    51. 15.47. powerpc64le-unknown-linux-musl
    52. 15.48. riscv32e*-unknown-none-elf
    53. 15.49. riscv32i*-unknown-none-elf
    54. 15.50. riscv32im-risc0-zkvm-elf
    55. 15.51. riscv32imac-unknown-xous-elf
    56. 15.52. riscv64gc-unknown-linux-gnu
    57. 15.53. riscv64gc-unknown-linux-musl
    58. 15.54. s390x-unknown-linux-gnu
    59. 15.55. s390x-unknown-linux-musl
    60. 15.56. sparc-unknown-none-elf
    61. 15.57. solaris
    62. 15.58. *-nto-qnx-*
    63. 15.59. *-unikraft-linux-musl
    64. 15.60. *-unknown-hermit
    65. 15.61. *-unknown-freebsd
    66. 15.62. *-unknown-netbsd*
    67. 15.63. *-unknown-openbsd
    68. 15.64. *-unknown-redox
    69. 15.65. *-unknown-uefi
    70. 15.66. *-uwp-windows-msvc
    71. 15.67. *-wrs-vxworks
    72. 15.68. wasm32-wasip1
    73. 15.69. wasm32-wasip1-threads
    74. 15.70. wasm32-wasip2
    75. 15.71. wasm32-wali-linux-musl
    76. 15.72. wasm32-unknown-emscripten
    77. 15.73. wasm32-unknown-unknown
    78. 15.74. wasm32v1-none
    79. 15.75. wasm64-unknown-unknown
    80. 15.76. windows-gnu
    81. 15.77. windows-gnullvm
    82. 15.78. *-win7-windows-gnu
    83. 15.79. *-win7-windows-msvc
    84. 15.80. x86_64-fortanix-unknown-sgx
    85. 15.81. x86_64-pc-cygwin
    86. 15.82. x86_64-unknown-linux-none.md
    87. 15.83. x86_64-unknown-none
    88. 15.84. xtensa-*-none-elf
    89. 15.85. *-nuttx-*