chess-move-gen 0.6.4

Fast chess move generation library. Uses SIMD for fast sliding piece move generation
Build #670335 2022-11-11T19:33:51.263558+00:00
# rustc version
rustc 1.67.0-nightly (c1a859b25 2022-11-10)
# docs.rs version
docsrs 0.6.0 (6685320 2022-11-09)

# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/chess-move-gen-0.6.4/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/chess-move-gen-0.6.4/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "3221225472" "--cpus" "3" "--user" "1001:1001" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20221110-1.67.0-nightly-c1a859b25\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--disable-per-crate-search\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/x86_64-unknown-linux-gnu\"" "-j3" "--target" "x86_64-unknown-linux-gnu", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 389593c7a395c67521b34e519a3c8489ea7f853c3019de9603b26d53f14b97f6
[INFO] running `Command { std: "docker" "start" "-a" "389593c7a395c67521b34e519a3c8489ea7f853c3019de9603b26d53f14b97f6", kill_on_drop: false }`
[INFO] [stderr]     Checking simd v0.2.4
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/lib.rs:4:64
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(cfg_target_feature, repr_simd, platform_intrinsics, const_fn)]
[INFO] [stderr]   |                                                                ^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: split into finer-grained feature gates
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_movemask_ps`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn x86_mm_movemask_ps(x: f32x4) -> i32;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_max_ps`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn x86_mm_max_ps(x: f32x4, y: f32x4) -> f32x4;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_min_ps`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn x86_mm_min_ps(x: f32x4, y: f32x4) -> f32x4;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_rsqrt_ps`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn x86_mm_rsqrt_ps(x: f32x4) -> f32x4;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_rcp_ps`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn x86_mm_rcp_ps(x: f32x4) -> f32x4;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_sqrt_ps`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn x86_mm_sqrt_ps(x: f32x4) -> f32x4;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_adds_epi8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn x86_mm_adds_epi8(x: i8x16, y: i8x16) -> i8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_adds_epu8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn x86_mm_adds_epu8(x: u8x16, y: u8x16) -> u8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_adds_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn x86_mm_adds_epi16(x: i16x8, y: i16x8) -> i16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_adds_epu16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn x86_mm_adds_epu16(x: u16x8, y: u16x8) -> u16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_avg_epu8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn x86_mm_avg_epu8(x: u8x16, y: u8x16) -> u8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_avg_epu16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn x86_mm_avg_epu16(x: u16x8, y: u16x8) -> u16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_madd_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn x86_mm_madd_epi16(x: i16x8, y: i16x8) -> i32x4;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_max_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn x86_mm_max_epi16(x: i16x8, y: i16x8) -> i16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_max_epu8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn x86_mm_max_epu8(x: u8x16, y: u8x16) -> u8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_max_pd`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn x86_mm_max_pd(x: f64x2, y: f64x2) -> f64x2;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_min_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn x86_mm_min_epi16(x: i16x8, y: i16x8) -> i16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_min_epu8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn x86_mm_min_epu8(x: u8x16, y: u8x16) -> u8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_min_pd`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn x86_mm_min_pd(x: f64x2, y: f64x2) -> f64x2;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_movemask_pd`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn x86_mm_movemask_pd(x: f64x2) -> i32;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_movemask_epi8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn x86_mm_movemask_epi8(x: i8x16) -> i32;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_mul_epu32`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn x86_mm_mul_epu32(x: u32x4, y: u32x4) -> u64x2;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_mulhi_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn x86_mm_mulhi_epi16(x: i16x8, y: i16x8) -> i16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_mulhi_epu16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn x86_mm_mulhi_epu16(x: u16x8, y: u16x8) -> u16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_packs_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn x86_mm_packs_epi16(x: i16x8, y: i16x8) -> i8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_packs_epi32`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn x86_mm_packs_epi32(x: i32x4, y: i32x4) -> i16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_packus_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn x86_mm_packus_epi16(x: i16x8, y: i16x8) -> u8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_sad_epu8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn x86_mm_sad_epu8(x: u8x16, y: u8x16) -> u64x2;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_sqrt_pd`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn x86_mm_sqrt_pd(x: f64x2) -> f64x2;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_subs_epi8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn x86_mm_subs_epi8(x: i8x16, y: i8x16) -> i8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_subs_epu8`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn x86_mm_subs_epu8(x: u8x16, y: u8x16) -> u8x16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_subs_epi16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn x86_mm_subs_epi16(x: i16x8, y: i16x8) -> i16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unrecognized platform-specific intrinsic function: `x86_mm_subs_epu16`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.4/src/x86/sse2.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn x86_mm_subs_epu16(x: u16x8, y: u16x8) -> u16x8;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0557`.
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Cannot set `RUSTC_BOOTSTRAP=1` from build script of `simd v0.2.4`.
[INFO] [stderr] note: Crates cannot set `RUSTC_BOOTSTRAP` themselves, as doing so would subvert the stability guarantees of Rust for your project.
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `simd` due to 34 previous errors
[INFO] running `Command { std: "docker" "inspect" "389593c7a395c67521b34e519a3c8489ea7f853c3019de9603b26d53f14b97f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "389593c7a395c67521b34e519a3c8489ea7f853c3019de9603b26d53f14b97f6", kill_on_drop: false }`
[INFO] [stdout] 389593c7a395c67521b34e519a3c8489ea7f853c3019de9603b26d53f14b97f6