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. aarch64-unknown-linux-musl
    14. 15.11. amdgcn-amd-amdhsa
    15. 15.12. armeb-unknown-linux-gnueabi
    16. 15.13. arm-none-eabi
    17. 1. 15.13.1. armv4t-none-eabi
        2. 15.13.2. armv5te-none-eabi
        3. 15.13.3. armv7r-none-eabi
        4. 15.13.4. armv8r-none-eabihf
        5. 15.13.5. thumbv6m-none-eabi
        6. 15.13.6. thumbv7em-none-eabi*
        7. 15.13.7. thumbv7m-none-eabi
        8. 15.13.8. thumbv8m.base-none-eabi
        9. 15.13.9. thumbv8m.main-none-eabi*
    18. 15.14. armv5te-unknown-linux-gnueabi
    19. 15.15. armv6k-nintendo-3ds
    20. 15.16. armv7-rtems-eabihf
    21. 15.17. armv7-sony-vita-newlibeabihf
    22. 15.18. armv7-unknown-linux-uclibceabi
    23. 15.19. armv7-unknown-linux-uclibceabihf
    24. 15.20. *-android and *-androideabi
    25. 15.21. *-linux-ohos
    26. 15.22. *-hurd-gnu
    27. 15.23. aarch64-unknown-teeos
    28. 15.24. avr-none
    29. 15.25. *-espidf
    30. 15.26. *-unknown-fuchsia
    31. 15.27. *-unknown-trusty
    32. 15.28. *-kmc-solid_*
    33. 15.29. csky-unknown-linux-gnuabiv2*
    34. 15.30. hexagon-unknown-linux-musl
    35. 15.31. hexagon-unknown-none-elf
    36. 15.32. illumos
    37. 15.33. loongarch*-unknown-linux-*
    38. 15.34. loongarch*-unknown-none*
    39. 15.35. *-lynxos178-*
    40. 15.36. m68k-unknown-linux-gnu
    41. 15.37. m68k-unknown-none-elf
    42. 15.38. mips64-openwrt-linux-musl
    43. 15.39. mips64-unknown-linux-muslabi64
    44. 15.40. mipsel-sony-psx
    45. 15.41. mipsel-unknown-linux-gnu
    46. 15.42. mips*-mti-none-elf
    47. 15.43. mipsisa*r6*-unknown-linux-gnu*
    48. 15.44. nvptx64-nvidia-cuda
    49. 15.45. powerpc-unknown-openbsd
    50. 15.46. powerpc-unknown-linux-gnuspe
    51. 15.47. powerpc-unknown-linux-muslspe
    52. 15.48. powerpc64-ibm-aix
    53. 15.49. powerpc64-unknown-linux-musl
    54. 15.50. powerpc64le-unknown-linux-gnu
    55. 15.51. powerpc64le-unknown-linux-musl
    56. 15.52. riscv32e*-unknown-none-elf
    57. 15.53. riscv32i*-unknown-none-elf
    58. 15.54. riscv32im-risc0-zkvm-elf
    59. 15.55. riscv32imac-unknown-xous-elf
    60. 15.56. riscv64gc-unknown-linux-gnu
    61. 15.57. riscv64gc-unknown-linux-musl
    62. 15.58. s390x-unknown-linux-gnu
    63. 15.59. s390x-unknown-linux-musl
    64. 15.60. sparc-unknown-none-elf
    65. 15.61. solaris
    66. 15.62. *-nto-qnx-*
    67. 15.63. *-unikraft-linux-musl
    68. 15.64. *-unknown-hermit
    69. 15.65. *-unknown-freebsd
    70. 15.66. *-unknown-netbsd*
    71. 15.67. *-unknown-openbsd
    72. 15.68. *-unknown-redox
    73. 15.69. *-unknown-uefi
    74. 15.70. *-unknown-windows-msvc
    75. 15.71. *-uwp-windows-msvc
    76. 15.72. *-wrs-vxworks
    77. 15.73. wasm32-wasip1
    78. 15.74. wasm32-wasip1-threads
    79. 15.75. wasm32-wasip2
    80. 15.76. wasm32-wali-linux-musl
    81. 15.77. wasm32-unknown-emscripten
    82. 15.78. wasm32-unknown-unknown
    83. 15.79. wasm32v1-none
    84. 15.80. wasm64-unknown-unknown
    85. 15.81. windows-gnu
    86. 15.82. windows-gnullvm
    87. 15.83. *-win7-windows-gnu
    88. 15.84. *-win7-windows-msvc
    89. 15.85. x86_64-fortanix-unknown-sgx
    90. 15.86. x86_64-pc-cygwin
    91. 15.87. x86_64-unknown-linux-none
    92. 15.88. x86_64-unknown-none
    93. 15.89. xtensa-*-none-elf
    94. 15.90. *-nuttx-*
    95. 15.91. i386-lynx-lynxos178