these 3 derivations will be built:
  /nix/store/ykb42rqxhhap70di8y0062dgsyi3yvb5-nix-util-2.36.0pre20260920_5711f8fe.drv
  /nix/store/3hzv4vk50927d6rf6v9c5y5mjf7q3n37-nix-store-2.36.0pre20260920_5711f8fe.drv
  /nix/store/2c4xkaf0973n5hvffqqzjd8xfq4hnjs1-nix-grpc-store-clang-tidy-0.1.0-beta.1.drv
these 9 paths will be fetched (303.0 MiB download, 1.6 GiB unpacked):
  /nix/store/qkyiflzkas69laf943jkwninmmc0m31g-clang-23.1.0
  /nix/store/jcyzldbanwbcdmy2lr4jjbrqnirml78b-clang-23.1.0-lib
  /nix/store/4xy94dyaa7w408v99km1q0b2k4wrlrjc-clang-23.1.0-python
  /nix/store/v8prq2dylwx0w5qq3zcz6as1qz8r32gp-clang-tools-23.1.0
  /nix/store/zc59v8j8rz75vkg4dispqcrh50d0lf97-clang-wrapper-23.1.0
  /nix/store/ysv3s95jf0iifkfl8dxx0qx5m2c8jqrb-compiler-rt-libc-23.1.0
  /nix/store/8ingqcks53bl51j75hb2rh75hkz5s97w-compiler-rt-libc-23.1.0-dev
  /nix/store/ll3cqxwmb89vadah14q9syzr0likl6xs-llvm-23.1.0-lib
  /nix/store/9ngrq082f3mxgqrliiclvlcqjip0zv6z-stdenv-linux
error: Cannot build '/nix/store/2c4xkaf0973n5hvffqqzjd8xfq4hnjs1-nix-grpc-store-clang-tidy-0.1.0-beta.1.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/isrcj154npyvyap72hfhzv274v89wb46-nix-grpc-store-clang-tidy-0.1.0-beta.1
       Last 25 log lines:
       >       |                                                    ^
       > ../src/pump.hh:77:59: error: narrowing conversion from constant value 18446744073709551615 (0xFFFFFFFFFFFFFFFF) of type 'size_t' (aka 'unsigned long') to signed type 'int' is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions,-warnings-as-errors]
       >    77 |             return got != 0 ? static_cast<ssize_t>(got) : -1;
       >       |                                                           ^
       > ../src/pump.hh:90:41: error: narrowing conversion from 'size_t' (aka 'unsigned long') to signed type 'int' is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions,-warnings-as-errors]
       >    90 |             return static_cast<ssize_t>(got); // EOF; caller sees short (possibly zero) batch
       >       |                                         ^
       > ../src/pump.hh:95:48: error: narrowing conversion from 'size_t' (aka 'unsigned long') to signed type 'int' is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions,-warnings-as-errors]
       >    95 |         return got != 0 ? static_cast<ssize_t>(got) : -1;
       >       |                                                ^
       > ../src/pump.hh:95:55: error: narrowing conversion from constant value 18446744073709551615 (0xFFFFFFFFFFFFFFFF) of type 'size_t' (aka 'unsigned long') to signed type 'int' is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions,-warnings-as-errors]
       >    95 |         return got != 0 ? static_cast<ssize_t>(got) : -1;
       >       |                                                       ^
       > ../src/pump.hh:97:33: error: narrowing conversion from 'size_t' (aka 'unsigned long') to signed type 'int' is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions,-warnings-as-errors]
       >    97 |     return static_cast<ssize_t>(got);
       >       |                                 ^
       > ../src/pump.hh:155:56: error: redundant empty parameter list in lambda expression [readability-redundant-lambda-parameter-list,-warnings-as-errors]
       >   155 |         zstdCompressInto(*cctx, out, zin, directive, []() -> void {});
       >       |                                                        ^~
       > ../src/pump.hh:233:78: error: redundant empty parameter list in lambda expression [readability-redundant-lambda-parameter-list,-warnings-as-errors]
       >   233 |         zstdCompressInto(*cctx, *msg.mutable_data(), input, directive, [this]() -> void { ship(); });
       >       |                                                                              ^~
       > FAILED: [code=1] meson-internal__clang-tidy
       > /nix/store/jaa89dphx07w3r26y7gh79a7b1mld5p4-meson-1.10.2/bin/meson --internal clangtidy /build/source /build/source/build --color always
       > ninja: build stopped: subcommand failed.
       For full logs, run:
         nix log /nix/store/2c4xkaf0973n5hvffqqzjd8xfq4hnjs1-nix-grpc-store-clang-tidy-0.1.0-beta.1.drv