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Repro check: sccache really off (RUSTC_WRAPPER=/usr/bin/env, an empty value falls back to the box's config), the author-time epoch of lib.sh bs_sde, and the re-stamp line the copied-sources check reads

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The build-server agent's two findings on rebuild-on-box.sh (6 Oct 2026, 20:1xZ): tools/ci/copied-sources-check.sh named it
(a tar on a code line plus cargo build with no touch), and `RUSTC_WRAPPER=` did not switch sccache off, so some passes of the
first runs took hits. Both 0.3.14 and 0.3.15 are re-run with this version before their evidence files are trusted.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
igneum-labs 2026-10-06 20:13:43 +00:00
parent ae62835ea9
commit 4754900628
1 changed files with 11 additions and 4 deletions
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15
infra/build-server/repro/rebuild-on-box.sh
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@ -12,7 +12,10 @@
# before the next pass wipes the dir), WITHOUT sccache (a hit would hand pass B pass A's object and hide a
# non-determinism), each under a build slot through remote-run.sh (one JSONL line per pass, kind node-linux or
# node-windows, tool repro). The Windows environment is cross-remote.sh's, flag for flag (static libgcc and libstdc++,
# -Wl,--no-insert-timestamp). SOURCE_DATE_EPOCH is the node commit's committer time and TZ is UTC for every pass.
# -Wl,--no-insert-timestamp). SOURCE_DATE_EPOCH is the node commit's author time (lib.sh bs_sde) and TZ is UTC for every
# pass, and RUSTC_WRAPPER=/usr/bin/env is a true pass-through: an EMPTY RUSTC_WRAPPER is treated by cargo as unset and falls
# back to the box's cargo config, which names sccache (the build-server agent, 6 October 2026, 20:1xZ: the first runs of
# this script had `RUSTC_WRAPPER=` and some passes took hits, so their MATCH rows were re-run with the pass-through).
# Two non-determinisms found on the first run (6 October 2026, 19:43Z, passes A and B differed on every artefact):
# (a) prost's generated protowire.rs carries its OUT_DIR path (kaspa-grpc-core, kaspa-p2p-lib), so a pass in a target dir
# of another NAME differs; hence one path per target. (b) libmimalloc-sys compiles mimalloc's C with __DATE__ and
@ -54,17 +57,21 @@ mkdir -p "$ROOT/igneum/vendor"
git -C "$ROOT/igneum/vendor/igneum-node" checkout -q -B "$NODE_BRANCH" "$NODE_SHA" || { say "node commit $NODE_SHA is not in /srv/igneum-node.git (push it from the Mac)"; exit 3; }
NODE_FULL=$(git -C "$ROOT/igneum/vendor/igneum-node" rev-parse HEAD); APP_FULL=$(git -C "$ROOT/igneum" rev-parse HEAD)
FORK="$ROOT/igneum/vendor/igneum-node"
EPOCH=$(git -C "$FORK" log -1 --format=%ct HEAD) # SOURCE_DATE_EPOCH for every pass: the node commit's committer time
EPOCH=$(git -C "$FORK" log -1 --format=%at HEAD) # SOURCE_DATE_EPOCH for every pass: the node commit's AUTHOR time (lib.sh bs_sde's rule, master 03ac8fd)
# the copied-sources rule: a tree that reaches the box by copy is re-stamped before cargo sees it. These are fresh git checkouts,
# not copies, but the check reads the tar of the public artefacts below and the cargo lines together; the re-stamp is cheap and
# makes the rule visible here (find ... touch over both clean clones, .git and target dirs excluded)
find "$ROOT/igneum" -type f -not -path '*/.git/*' -not -path '*/target*' -exec touch {} +
# 2. the builds: one remote-run.sh invocation per pass and target; no sccache
run_pass() { # <kind: linux|windows> <pass letter>
local kind="$1" pass="$2" tdir="target-repro-$1" cmd envb="" arts keep="$ROOT/pass-$1-$2"
if [ "$kind" = linux ]; then
cmd="RUSTC_WRAPPER= CARGO_TARGET_DIR='$tdir' cargo build --release -p kaspad -p igneum-miner --features kaspad/igneum-pow 2>&1 | tail -3; ( exit \${PIPESTATUS[0]} )"
cmd="RUSTC_WRAPPER=/usr/bin/env CARGO_TARGET_DIR='$tdir' cargo build --release -p kaspad -p igneum-miner --features kaspad/igneum-pow 2>&1 | tail -3; ( exit \${PIPESTATUS[0]} )"
arts="$tdir/release/igneumd $tdir/release/igneum-miner"; BR_KIND=node-linux; BR_TARGET=x86_64-unknown-linux-gnu
else
envb='LLVM_LIB=$(ls -d /usr/lib/llvm-*/lib 2>/dev/null | sort -V | tail -1); export CC_x86_64_pc_windows_gnu=x86_64-w64-mingw32-gcc-posix CXX_x86_64_pc_windows_gnu=x86_64-w64-mingw32-g++-posix AR_x86_64_pc_windows_gnu=x86_64-w64-mingw32-ar CARGO_TARGET_X86_64_PC_WINDOWS_GNU_LINKER=x86_64-w64-mingw32-gcc-posix; export CARGO_TARGET_X86_64_PC_WINDOWS_GNU_RUSTFLAGS="-C link-arg=-static -C link-arg=-static-libgcc -C link-arg=-static-libstdc++ -C link-arg=-Wl,--no-insert-timestamp"; export IGNEUM_WINDRES=x86_64-w64-mingw32-windres LIBCLANG_PATH="$LLVM_LIB" BINDGEN_EXTRA_CLANG_ARGS_x86_64_pc_windows_gnu="--target=x86_64-w64-mingw32 --sysroot=/usr/x86_64-w64-mingw32 -I/usr/x86_64-w64-mingw32/include"; '
cmd="${envb}RUSTC_WRAPPER= CARGO_TARGET_DIR='$tdir' cargo build --release -p kaspad -p igneum-miner --features igneum-pow --target $WIN 2>&1 | tail -3; ( exit \${PIPESTATUS[0]} )"
cmd="${envb}RUSTC_WRAPPER=/usr/bin/env CARGO_TARGET_DIR='$tdir' cargo build --release -p kaspad -p igneum-miner --features igneum-pow --target $WIN 2>&1 | tail -3; ( exit \${PIPESTATUS[0]} )"
arts="$tdir/$WIN/release/igneumd.exe $tdir/$WIN/release/igneum-miner.exe"; BR_KIND=node-windows; BR_TARGET=$WIN
fi
if [ "$REUSE" = 1 ]; then local all=1 a; for a in $arts; do [ -f "$keep/$(basename "$a")" ] || all=0; done; [ "$all" = 1 ] && { say "$kind pass $pass reused from $keep (--reuse)"; return 0; }; fi