[INFO] cloning repository https://github.com/StardustXR/black-hole
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StardustXR/black-hole" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStardustXR%2Fblack-hole", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStardustXR%2Fblack-hole'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5b7778ed23b1e9b57e2292f16c9db10ca0eb1ad
[INFO] documenting StardustXR/black-hole against beta-2026-04-21 for beta-1.96-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStardustXR%2Fblack-hole" "/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/StardustXR/black-hole
[INFO] finished tweaking git repo https://github.com/StardustXR/black-hole
[INFO] tweaked toml for git repo https://github.com/StardustXR/black-hole written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/StardustXR/black-hole 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/StardustXR/black-hole 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] 42910302554ba9b357868676d21802369dcbcb38db676a8db9b03f72e5839794
[INFO] running `Command { std: "docker" "start" "-a" "42910302554ba9b357868676d21802369dcbcb38db676a8db9b03f72e5839794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42910302554ba9b357868676d21802369dcbcb38db676a8db9b03f72e5839794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42910302554ba9b357868676d21802369dcbcb38db676a8db9b03f72e5839794", kill_on_drop: false }`
[INFO] [stdout] 42910302554ba9b357868676d21802369dcbcb38db676a8db9b03f72e5839794
[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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30f429636412d0ff93455b3f90665afca267909d2ac6b4d8b84b40dbf8641b8a
[INFO] running `Command { std: "docker" "start" "-a" "30f429636412d0ff93455b3f90665afca267909d2ac6b4d8b84b40dbf8641b8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking writeable v0.6.2
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking litemap v0.8.1
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling icu_properties_data v2.1.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.1.1
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]    Compiling zerocopy v0.8.28
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling endi v1.1.0
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytes v1.11.0
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr] error: could not compile `serde_core` (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 serde_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_core-1.0.228/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="result"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "rc", "result", "std", "unstable"))' -C metadata=d36d63b7304bab92 -C extra-filename=-e6beb72404152b37 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn --check-cfg 'cfg(if_docsrs_then_no_serde_core)' --check-cfg 'cfg(no_core_cstr)' --check-cfg 'cfg(no_core_error)' --check-cfg 'cfg(no_core_net)' --check-cfg 'cfg(no_core_num_saturating)' --check-cfg 'cfg(no_diagnostic_namespace)' --check-cfg 'cfg(no_serde_derive)' --check-cfg 'cfg(no_std_atomic)' --check-cfg 'cfg(no_std_atomic64)' --check-cfg 'cfg(no_target_has_atomic)'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "30f429636412d0ff93455b3f90665afca267909d2ac6b4d8b84b40dbf8641b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f429636412d0ff93455b3f90665afca267909d2ac6b4d8b84b40dbf8641b8a", kill_on_drop: false }`
[INFO] [stdout] 30f429636412d0ff93455b3f90665afca267909d2ac6b4d8b84b40dbf8641b8a