[INFO] cloning repository https://github.com/Zed-Softworks-Official/carbon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zed-Softworks-Official/carbon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZed-Softworks-Official%2Fcarbon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZed-Softworks-Official%2Fcarbon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f74f8a7aa7e3efbcd9e6c19264d28b2d93a6b93
[INFO] testing Zed-Softworks-Official/carbon against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZed-Softworks-Official%2Fcarbon" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Zed-Softworks-Official/carbon
[INFO] finished tweaking git repo https://github.com/Zed-Softworks-Official/carbon
[INFO] tweaked toml for git repo https://github.com/Zed-Softworks-Official/carbon written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Zed-Softworks-Official/carbon 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/Zed-Softworks-Official/carbon 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c8d7328a83824258d65dcb7fdd6bb2bb64285ed7c4f296761888a4a46e023401
[INFO] running `Command { std: "docker" "start" "-a" "c8d7328a83824258d65dcb7fdd6bb2bb64285ed7c4f296761888a4a46e023401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8d7328a83824258d65dcb7fdd6bb2bb64285ed7c4f296761888a4a46e023401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8d7328a83824258d65dcb7fdd6bb2bb64285ed7c4f296761888a4a46e023401", kill_on_drop: false }`
[INFO] [stdout] c8d7328a83824258d65dcb7fdd6bb2bb64285ed7c4f296761888a4a46e023401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 584a15e21b8c8565ee09831a87b43a3a2797bd725b958d304be0ba2bc4dd4aa2
[INFO] running `Command { std: "docker" "start" "-a" "584a15e21b8c8565ee09831a87b43a3a2797bd725b958d304be0ba2bc4dd4aa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling instability v0.3.11
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling compact_str v0.9.0
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling time-core v0.1.7
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]    Compiling convert_case v0.10.0
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling flate2 v1.1.8
[INFO] [stderr]    Compiling line-clipping v0.3.5
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling lru v0.16.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling png v0.18.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling pxfm v0.1.27
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling time v0.3.45
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling byteorder-lite v0.1.0
[INFO] [stderr]    Compiling indenter v0.3.4
[INFO] [stderr]    Compiling x11rb-protocol v0.13.2
[INFO] [stderr]    Compiling tracing-error v0.2.1
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling unicode-truncate v2.0.1
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling bytes v1.11.0
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling derive_more-impl v2.1.1
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling moxcms v0.7.11
[INFO] [stderr]    Compiling gethostname v1.1.0
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr] error: could not compile `object` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name object --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/object-0.37.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 '--allow=clippy::uninlined_format_args' '--allow=clippy::type_complexity' '--allow=clippy::single_match' '--allow=clippy::should_implement_trait' '--allow=clippy::result_unit_err' '--allow=clippy::needless_lifetimes' '--allow=clippy::match_like_matches_macro' '--allow=clippy::manual_flatten' '--allow=clippy::field_reassign_with_default' '--allow=clippy::comparison_chain' '--allow=clippy::collapsible_match' '--allow=clippy::collapsible_if' '--allow=clippy::collapsible_else_if' --cfg 'feature="archive"' --cfg 'feature="coff"' --cfg 'feature="elf"' --cfg 'feature="macho"' --cfg 'feature="pe"' --cfg 'feature="read_core"' --cfg 'feature="unaligned"' --cfg 'feature="xcoff"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("all", "alloc", "archive", "build", "build_core", "cargo-all", "coff", "compression", "core", "default", "doc", "elf", "macho", "pe", "read", "read_core", "rustc-dep-of-std", "std", "unaligned", "unstable", "unstable-all", "wasm", "write", "write_core", "write_std", "xcoff"))' -C metadata=5150847c5022f55e -C extra-filename=-ef6b1add60b37a39 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-60600b635ad5cf18.rmeta --cap-lints allow --cap-lints=warn --cfg core_error --check-cfg 'cfg(core_error)'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "584a15e21b8c8565ee09831a87b43a3a2797bd725b958d304be0ba2bc4dd4aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584a15e21b8c8565ee09831a87b43a3a2797bd725b958d304be0ba2bc4dd4aa2", kill_on_drop: false }`
[INFO] [stdout] 584a15e21b8c8565ee09831a87b43a3a2797bd725b958d304be0ba2bc4dd4aa2