[INFO] cloning repository https://github.com/lzm0/tablr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lzm0/tablr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flzm0%2Ftablr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flzm0%2Ftablr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 795d186e5e5a05312f31809f14080e915a0a95ce
[INFO] checking lzm0/tablr against master#fce0e74720d199eb7839fdb51af35ac5226da178 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flzm0%2Ftablr" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lzm0/tablr
[INFO] finished tweaking git repo https://github.com/lzm0/tablr
[INFO] tweaked toml for git repo https://github.com/lzm0/tablr written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lzm0/tablr on toolchain fce0e74720d199eb7839fdb51af35ac5226da178
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lzm0/tablr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polars-time v0.48.1
[INFO] [stderr]   Downloaded polars-row v0.48.1
[INFO] [stderr]   Downloaded polars-schema v0.48.1
[INFO] [stderr]   Downloaded polars-error v0.48.1
[INFO] [stderr]   Downloaded serde_ignored v0.1.12
[INFO] [stderr]   Downloaded halfbrown v0.2.5
[INFO] [stderr]   Downloaded value-trait v0.10.1
[INFO] [stderr]   Downloaded polars-json v0.48.1
[INFO] [stderr]   Downloaded polars-mem-engine v0.48.1
[INFO] [stderr]   Downloaded skiplist v0.5.1
[INFO] [stderr]   Downloaded polars-pipe v0.48.1
[INFO] [stderr]   Downloaded polars-lazy v0.48.1
[INFO] [stderr]   Downloaded polars-compute v0.48.1
[INFO] [stderr]   Downloaded polars-ops v0.48.1
[INFO] [stderr]   Downloaded polars v0.48.1
[INFO] [stderr]   Downloaded simd-json v0.14.3
[INFO] [stderr]   Downloaded polars-stream v0.48.1
[INFO] [stderr]   Downloaded polars-parquet v0.48.1
[INFO] [stderr]   Downloaded polars-io v0.48.1
[INFO] [stderr]   Downloaded polars-expr v0.48.1
[INFO] [stderr]   Downloaded polars-sql v0.48.1
[INFO] [stderr]   Downloaded polars-utils v0.48.1
[INFO] [stderr]   Downloaded polars-plan v0.48.1
[INFO] [stderr]   Downloaded polars-arrow v0.48.1
[INFO] [stderr]   Downloaded polars-core v0.48.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38411093d86be1d46515ca5661650ecc31580523b69fbfae64633f6b56892fa6
[INFO] running `Command { std: "docker" "start" "-a" "38411093d86be1d46515ca5661650ecc31580523b69fbfae64633f6b56892fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38411093d86be1d46515ca5661650ecc31580523b69fbfae64633f6b56892fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38411093d86be1d46515ca5661650ecc31580523b69fbfae64633f6b56892fa6", kill_on_drop: false }`
[INFO] [stdout] 38411093d86be1d46515ca5661650ecc31580523b69fbfae64633f6b56892fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c0d0b5ec7b820de7ae5030ce1f5a7aafbc82e43d131bc0106f4a5bd42c04b99
[INFO] running `Command { std: "docker" "start" "-a" "9c0d0b5ec7b820de7ae5030ce1f5a7aafbc82e43d131bc0106f4a5bd42c04b99", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: failed to write `/opt/rustwide/target/debug/.fingerprint/zerocopy-3806175313019471/invoked.timestamp`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rustix` (build script)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/bin/rustc --crate-name build_script_build --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustix-0.38.44/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no --warn=unexpected_cfgs --check-cfg 'cfg(alloc_c_string)' --check-cfg 'cfg(alloc_ffi)' --check-cfg 'cfg(apple)' --check-cfg 'cfg(asm_experimental_arch)' --check-cfg 'cfg(bsd)' --check-cfg 'cfg(core_c_str)' --check-cfg 'cfg(core_ffi_c)' --check-cfg 'cfg(core_intrinsics)' --check-cfg 'cfg(criterion)' --check-cfg 'cfg(document_experimental_runtime_api)' --check-cfg 'cfg(fix_y2038)' --check-cfg 'cfg(freebsdlike)' --check-cfg 'cfg(libc)' --check-cfg 'cfg(linux_kernel)' --check-cfg 'cfg(linux_like)' --check-cfg 'cfg(linux_raw)' --check-cfg 'cfg(netbsdlike)' --check-cfg 'cfg(rustc_attrs)' --check-cfg 'cfg(solarish)' --check-cfg 'cfg(staged_api)' --check-cfg 'cfg(static_assertions)' --check-cfg 'cfg(thumb_mode)' --check-cfg 'cfg(wasi)' --check-cfg 'cfg(wasi_ext)' --check-cfg 'cfg(target_arch, values("xtensa"))' --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="event"' --cfg 'feature="fs"' --cfg 'feature="libc-extra-traits"' --cfg 'feature="net"' --cfg 'feature="pipe"' --cfg 'feature="process"' --cfg 'feature="shm"' --cfg 'feature="std"' --cfg 'feature="stdio"' --cfg 'feature="system"' --cfg 'feature="termios"' --cfg 'feature="thread"' --cfg 'feature="time"' --cfg 'feature="use-libc-auxv"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("all-apis", "alloc", "cc", "compiler_builtins", "core", "default", "event", "fs", "io_uring", "itoa", "libc", "libc-extra-traits", "libc_errno", "linux_4_11", "linux_latest", "mm", "mount", "net", "once_cell", "param", "pipe", "process", "procfs", "pty", "rand", "runtime", "rustc-dep-of-std", "rustc-std-workspace-alloc", "shm", "std", "stdio", "system", "termios", "thread", "time", "try_close", "use-explicitly-provided-auxv", "use-libc", "use-libc-auxv"))' -C metadata=25cc3deb0855b5c7 -C extra-filename=-478f7898e4f5815e --out-dir /opt/rustwide/target/debug/build/rustix-478f7898e4f5815e -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcMsFJFz/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libautocfg-edb41dba5c1eb139.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcMsFJFz/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/build/slab-cdde5cfe94dee04a/build_script_build-cdde5cfe94dee04a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
[INFO] [stdout]           Stack dump:
[INFO] [stdout]           0.    Program arguments: /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/bin/rust-lld -flavor gnu -plugin /usr/libexec/gcc/x86_64-linux-gnu/13/liblto_plugin.so -plugin-opt=/usr/libexec/gcc/x86_64-linux-gnu/13/lto-wrapper -plugin-opt=-fresolution=/tmp/ccIw2W7A.res --build-id --eh-frame-hdr -m elf_x86_64 --hash-style=gnu --as-needed -dynamic-linker /lib64/ld-linux-x86-64.so.2 -pie -z now -z relro -o /opt/rustwide/target/debug/build/slab-cdde5cfe94dee04a/build_script_build-cdde5cfe94dee04a /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/crti.o /usr/lib/gcc/x86_64-linux-gnu/13/crtbeginS.o -L/tmp/rustcMsFJFz/raw-dylibs -L/opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib -L/opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld -L/usr/lib/gcc/x86_64-linux-gnu/13 -L/usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu -L/usr/lib/gcc/x86_64-linux-gnu/13/../../../../lib -L/lib/x86_64-linux-gnu -L/lib/../lib -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/13/../../.. /tmp/rustcMsFJFz/symbols.o /opt/rustwide/target/debug/build/slab-cdde5cfe94dee04a/build_script_build-cdde5cfe94dee04a.build_script_build.ff5be0edc7d1f572-cgu.0.rcgu.o /opt/rustwide/target/debug/build/slab-cdde5cfe94dee04a/build_script_build-cdde5cfe94dee04a.3g1wzvrvucrge9cia4zzvtlpq.rcgu.o --as-needed -Bstatic /opt/rustwide/target/debug/deps/libautocfg-edb41dba5c1eb139.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9fbdd90241d2d923.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-746a3425430780d2.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-7a8b55dc1d89c775.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-23ead417cd1d2f1d.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-13eb84cb585d05d9.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c2364202eecb5367.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-448208029e7db0c7.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-9e9348afe78bd4f7.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-44183a0f69a8d94c.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-2846b5721d99d745.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-be1b8d0f7d44bf00.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler2-af76a9473bd4e8cb.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-4d640125cb853290.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-73a9fbbfc67b2133.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-555d0154f205393f.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-064fa9e86a13fde1.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-6edfa60350194f97.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-28a6d102916cede1.rlib /opt/rustwide/rustup-home/toolchains/fce0e74720d199eb7839fdb51af35ac5226da178/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3b728bb14bef97c3.rlib -Bdynamic -lgcc_s -lutil -lrt -lpthread -lm -ldl -lc --eh-frame-hdr -z noexecstack --gc-sections -z relro -z now /usr/lib/gcc/x86_64-linux-gnu/13/crtendS.o /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/crtn.o
[INFO] [stdout]           LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slab` (build script) due to 1 previous error
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaC88mzK"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracing-core` (lib) due to 1 previous error
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaIiN0hX"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetaWra6qA/full.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crossbeam-utils` (lib) due to 1 previous error
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmeta9MnJi9/full.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libc` (lib) due to 1 previous error
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetabmmLhy/full.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libc` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9c0d0b5ec7b820de7ae5030ce1f5a7aafbc82e43d131bc0106f4a5bd42c04b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c0d0b5ec7b820de7ae5030ce1f5a7aafbc82e43d131bc0106f4a5bd42c04b99", kill_on_drop: false }`
[INFO] [stdout] 9c0d0b5ec7b820de7ae5030ce1f5a7aafbc82e43d131bc0106f4a5bd42c04b99