[INFO] cloning repository https://github.com/hermann-wenninger/empty [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hermann-wenninger/empty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhermann-wenninger%2Fempty", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhermann-wenninger%2Fempty'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9deefd988968c85db88a214821bb3c7d6c5dc58 [INFO] testing hermann-wenninger/empty against beta-2026-04-21 for beta-1.96-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhermann-wenninger%2Fempty" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/hermann-wenninger/empty [INFO] finished tweaking git repo https://github.com/hermann-wenninger/empty [INFO] tweaked toml for git repo https://github.com/hermann-wenninger/empty written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/hermann-wenninger/empty on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/hermann-wenninger/empty 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb7a3b100ff61af510995a15fbce86e6a0a51b1f454a82dc2007aa30406650fb [INFO] running `Command { std: "docker" "start" "-a" "fb7a3b100ff61af510995a15fbce86e6a0a51b1f454a82dc2007aa30406650fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb7a3b100ff61af510995a15fbce86e6a0a51b1f454a82dc2007aa30406650fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb7a3b100ff61af510995a15fbce86e6a0a51b1f454a82dc2007aa30406650fb", kill_on_drop: false }` [INFO] [stdout] fb7a3b100ff61af510995a15fbce86e6a0a51b1f454a82dc2007aa30406650fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0719c18e5f16283c50dd08141016bc1a25b4a4b4e976cf439fdde6db2e172ce1 [INFO] running `Command { std: "docker" "start" "-a" "0719c18e5f16283c50dd08141016bc1a25b4a4b4e976cf439fdde6db2e172ce1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling unicode-ident v1.0.14 [INFO] [stderr] Compiling libc v0.2.169 [INFO] [stderr] Compiling bytes v1.9.0 [INFO] [stderr] Compiling smallvec v1.13.2 [INFO] [stderr] Compiling log v0.4.24 [INFO] [stderr] Compiling itoa v1.0.14 [INFO] [stderr] Compiling once_cell v1.20.2 [INFO] [stderr] Compiling cpufeatures v0.2.16 [INFO] [stderr] Compiling pkg-config v0.3.31 [INFO] [stderr] Compiling httparse v1.9.5 [INFO] [stderr] Compiling serde v1.0.217 [INFO] [stderr] Compiling crypto-common v0.1.6 [INFO] [stderr] Compiling rustversion v1.0.19 [INFO] [stderr] Compiling tinyvec v1.8.1 [INFO] [stderr] Compiling unicode-bidi v0.3.18 [INFO] [stderr] Compiling unicode-properties v0.1.3 [INFO] [stderr] Compiling tower-layer v0.3.3 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Compiling litemap v0.7.4 [INFO] [stderr] Compiling foldhash v0.1.4 [INFO] [stderr] Compiling serde_json v1.0.135 [INFO] [stderr] Compiling ryu v1.0.18 [INFO] [stderr] Compiling tracing-core v0.1.33 [INFO] [stderr] Compiling siphasher v1.0.1 [INFO] [stderr] Compiling sha2 v0.10.8 [INFO] [stderr] Compiling hmac v0.12.1 [INFO] [stderr] Compiling quote v1.0.38 [INFO] [stderr] Compiling md-5 v0.10.6 [INFO] [stderr] Compiling hashbrown v0.15.2 [INFO] [stderr] Compiling http v0.2.12 [INFO] [stderr] Compiling http v1.2.0 [INFO] [stderr] Compiling phf_shared v0.11.3 [INFO] [stderr] Compiling icu_locid_transform_data v1.5.0 [INFO] [stderr] Compiling icu_properties_data v1.5.0 [INFO] [stderr] Compiling syn v2.0.96 [INFO] [stderr] Compiling whoami v1.5.2 [INFO] [stderr] Compiling phf v0.11.3 [INFO] [stderr] Compiling bitflags v2.7.0 [INFO] [stderr] Compiling local-waker v0.1.4 [INFO] [stderr] Compiling icu_normalizer_data v1.5.0 [INFO] [stderr] Compiling zstd-safe v7.2.1 [INFO] [stderr] Compiling sync_wrapper v1.0.2 [INFO] [stderr] Compiling unicode-normalization v0.1.24 [INFO] [stderr] Compiling regex-lite v0.1.6 [INFO] [stderr] Compiling powerfmt v0.2.0 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling signal-hook-registry v1.4.2 [INFO] [stderr] Compiling socket2 v0.5.8 [INFO] [stderr] Compiling mio v1.0.3 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling jobserver v0.1.32 [INFO] [stderr] Compiling http-body v1.0.1 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling matchit v0.7.3 [INFO] [stderr] Compiling time-core v0.1.2 [INFO] [stderr] Compiling stringprep v0.1.5 [INFO] [stderr] Compiling windows_x86_64_gnu v0.48.5 [INFO] [stderr] Compiling num-conv v0.1.0 [INFO] [stderr] Compiling cc v1.2.10 [INFO] [stderr] Compiling http-body v0.4.6 [INFO] [stderr] Compiling miniz_oxide v0.8.2 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling time-macros v0.2.19 [INFO] [stderr] Compiling indexmap v2.7.1 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling deranged v0.3.11 [INFO] [stderr] Compiling axum-core v0.3.4 [INFO] [stderr] Compiling actix-service v2.0.2 [INFO] [stderr] Compiling bytestring v1.4.0 [INFO] [stderr] Compiling actix-utils v3.0.1 [INFO] [stderr] Compiling multer v3.1.0 [INFO] [stderr] Compiling cookie v0.16.2 [INFO] [stderr] Compiling anyhow v1.0.95 [INFO] [stderr] Compiling prettyplease v0.2.27 [INFO] [stderr] Compiling flate2 v1.0.35 [INFO] [stderr] Compiling brotli v6.0.0 [INFO] [stderr] Compiling axum v0.6.20 [INFO] [stderr] Compiling is-terminal v0.4.13 [INFO] [stderr] Compiling local-channel v0.1.5 [INFO] [stderr] Compiling sha1 v0.10.6 [INFO] [stderr] Compiling db v0.1.0 (/opt/rustwide/workdir/crates/db) [INFO] [stderr] Compiling language-tags v0.3.2 [INFO] [stderr] Compiling env_logger v0.10.2 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling windows-targets v0.48.5 [INFO] [stderr] Compiling hashlink v0.10.0 [INFO] [stderr] Compiling fallible-streaming-iterator v0.1.9 [INFO] [stderr] Compiling fallible-iterator v0.3.0 [INFO] [stderr] error: failed to run custom build command for `db v0.1.0 (/opt/rustwide/workdir/crates/db)` [INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/db-4afff94a9d750805/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] thread 'main' (1267) panicked at crates/db/build.rs:13:47: [INFO] [stderr] XXXXXXXXXXXXXXXXXX [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x627ec57becba - std[128c3efe2914e152]::backtrace_rs::backtrace::libunwind::trace [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x627ec57becba - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x627ec57becba - std[128c3efe2914e152]::sys::backtrace::_print_fmt [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9 [INFO] [stderr] 3: 0x627ec57becba - <::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26 [INFO] [stderr] 4: 0x627ec57cfb2a - ::fmt [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76 [INFO] [stderr] 5: 0x627ec57cfb2a - core[6771d259883166e6]::fmt::write [INFO] [stderr] 6: 0x627ec57c2d42 - std[128c3efe2914e152]::io::default_write_fmt:: [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11 [INFO] [stderr] 7: 0x627ec57c2d42 - ::write_fmt [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13 [INFO] [stderr] 8: 0x627ec57a470f - ::print [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9 [INFO] [stderr] 9: 0x627ec57a470f - std[128c3efe2914e152]::panicking::default_hook::{closure#0} [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27 [INFO] [stderr] 10: 0x627ec57ba921 - std[128c3efe2914e152]::panicking::default_hook [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9 [INFO] [stderr] 11: 0x627ec57baadb - std[128c3efe2914e152]::panicking::panic_with_hook [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13 [INFO] [stderr] 12: 0x627ec57a47c8 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0} [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13 [INFO] [stderr] 13: 0x627ec5799b39 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18 [INFO] [stderr] 14: 0x627ec57a502d - __rustc[752cc74e29381ccc]::rust_begin_unwind [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5 [INFO] [stderr] 15: 0x627ec57d021c - core[6771d259883166e6]::panicking::panic_fmt [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14 [INFO] [stderr] 16: 0x627ec57cff74 - core[6771d259883166e6]::panicking::panic_display::<&str> [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:259:5 [INFO] [stderr] 17: 0x627ec57cff74 - core[6771d259883166e6]::option::expect_failed [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/option.rs:2260:5 [INFO] [stderr] 18: 0x627ec578bf81 - core::option::Option::expect::hc7174b2ec63dfe7a [INFO] [stderr] 19: 0x627ec5789ab3 - build_script_build::cornucopia::h6e49e403a5e3ce14 [INFO] [stderr] 20: 0x627ec578a0a6 - build_script_build::main::h8a79d984e2030e6b [INFO] [stderr] 21: 0x627ec578b0d3 - core::ops::function::FnOnce::call_once::h7f8cbfa635543382 [INFO] [stderr] 22: 0x627ec578ab36 - std::sys::backtrace::__rust_begin_short_backtrace::hd3cc191009dac854 [INFO] [stderr] 23: 0x627ec578aa29 - std::rt::lang_start::{{closure}}::h963a7ae22e1f0b87 [INFO] [stderr] 24: 0x627ec57b9bc4 - <&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 25: 0x627ec57b9bc4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32> [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40 [INFO] [stderr] 26: 0x627ec57b9bc4 - std[128c3efe2914e152]::panicking::catch_unwind:: + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe> [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19 [INFO] [stderr] 27: 0x627ec57b9bc4 - std[128c3efe2914e152]::panic::catch_unwind::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32> [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14 [INFO] [stderr] 28: 0x627ec57b9bc4 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0} [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24 [INFO] [stderr] 29: 0x627ec57b9bc4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call:: [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40 [INFO] [stderr] 30: 0x627ec57b9bc4 - std[128c3efe2914e152]::panicking::catch_unwind:: [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19 [INFO] [stderr] 31: 0x627ec57b9bc4 - std[128c3efe2914e152]::panic::catch_unwind:: [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14 [INFO] [stderr] 32: 0x627ec57b9bc4 - std[128c3efe2914e152]::rt::lang_start_internal [INFO] [stderr] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5 [INFO] [stderr] 33: 0x627ec578aa11 - std::rt::lang_start::hce90f52e8c85acc3 [INFO] [stderr] 34: 0x627ec578dc15 - main [INFO] [stderr] 35: 0x7c483d8111ca - [INFO] [stderr] 36: 0x7c483d81128b - __libc_start_main [INFO] [stderr] 37: 0x627ec57898f5 - _start [INFO] [stderr] 38: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "0719c18e5f16283c50dd08141016bc1a25b4a4b4e976cf439fdde6db2e172ce1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0719c18e5f16283c50dd08141016bc1a25b4a4b4e976cf439fdde6db2e172ce1", kill_on_drop: false }` [INFO] [stdout] 0719c18e5f16283c50dd08141016bc1a25b4a4b4e976cf439fdde6db2e172ce1