[INFO] fetching crate stakk 2.6.0...
[INFO] checking stakk-2.6.0 against be3da1e8c043bb6f1f335463d3b1335cdf50b03c for pr-162597
[INFO] extracting crate stakk 2.6.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate stakk 2.6.0
[INFO] finished tweaking crates.io crate stakk 2.6.0
[INFO] tweaked toml for crates.io crate stakk 2.6.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stakk 2.6.0 on toolchain be3da1e8c043bb6f1f335463d3b1335cdf50b03c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stakk 2.6.0 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" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]    --> Cargo.toml:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | readme = "README.md"
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `stakk` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462
[INFO] running `Command { std: "docker" "start" "c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462" "/opt/rustwide/cargo-home/bin/cargo" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462" "/opt/rustwide/cargo-home/bin/cargo" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]    --> Cargo.toml:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | readme = "README.md"
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `stakk` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]     Checking smallvec v1.16.0
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]     Checking log v0.4.34
[INFO] [stderr]     Checking base64ct v1.8.3
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling thiserror v2.0.20
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]     Checking bitflags v2.13.1
[INFO] [stderr]     Checking bytes v1.12.1
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking futures-core v0.3.34
[INFO] [stderr]     Checking futures-sink v0.3.34
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking mio v1.2.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking futures-channel v0.3.34
[INFO] [stderr]     Checking socket2 v0.6.5
[INFO] [stderr]    Compiling cc v1.4.5
[INFO] [stderr]     Checking futures-task v0.3.34
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking futures-io v0.3.34
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]     Checking litemap v0.8.3
[INFO] [stderr]     Checking writeable v0.6.4
[INFO] [stderr]    Compiling zerocopy v0.8.56
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.3.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling time-core v0.1.9
[INFO] [stderr]    Compiling num-conv v0.2.2
[INFO] [stderr]    Compiling icu_properties_data v2.3.0
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking deranged v0.5.8
[INFO] [stderr]     Checking either v1.18.0
[INFO] [stderr]     Checking http v1.5.0
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]    Compiling time-macros v0.2.32
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking hashbrown v0.17.1
[INFO] [stderr]     Checking hashbrown v0.16.1
[INFO] [stderr]     Checking castaway v0.2.4
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling syn v3.0.5
[INFO] [stderr]     Checking num-integer v0.1.47
[INFO] [stderr]    Compiling instability v0.3.13
[INFO] [stderr]    Compiling camino v1.2.5
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]     Checking unicode-segmentation v1.13.3
[INFO] [stderr]     Checking lru v0.18.4
[INFO] [stderr]     Checking compact_str v0.9.1
[INFO] [stderr]    Compiling convert_case v0.10.0
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling rustls v0.23.43
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]     Checking spin v0.9.9
[INFO] [stderr]    Compiling num-bigint-dig v0.8.6
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking http-body v1.1.0
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking num-iter v0.1.46
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]     Checking object v0.37.3
[INFO] [stderr]     Checking num-bigint v0.4.8
[INFO] [stderr]     Checking line-clipping v0.3.8
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking signal-hook-mio v0.2.5
[INFO] [stderr]     Checking openssl-probe v0.2.1
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]     Checking rustc-demangle v0.1.28
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]    Compiling portable-atomic v1.15.0
[INFO] [stderr]     Checking clap_builder v4.6.6
[INFO] [stderr]     Checking pem v3.0.6
[INFO] [stderr]     Checking console v0.16.4
[INFO] [stderr]     Checking winnow v1.0.4
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking unicode-truncate v2.0.1
[INFO] [stderr]     Checking toml_parser v1.1.3+spec-1.1.0
[INFO] [stderr]     Checking http-body-util v0.1.5
[INFO] [stderr]     Checking time v0.3.55
[INFO] [stderr]     Checking arc-swap v1.9.2
[INFO] [stderr]     Checking web-time v1.1.0
[INFO] [stderr]     Checking owo-colors v4.4.0
[INFO] [stderr]     Checking toml_writer v1.1.2+spec-1.1.0
[INFO] [stderr]     Checking unit-prefix v0.5.2
[INFO] [stderr]     Checking memo-map v0.3.4
[INFO] [stderr]    Compiling stakk v2.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking jiff-core v0.1.0
[INFO] [stderr]     Checking fastrand v2.5.0
[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/be3da1e8c043bb6f1f335463d3b1335cdf50b03c/bin/rustc --crate-name serde_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_core-1.0.229/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="result"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "rc", "result", "std", "unstable"))' -C metadata=5c56fe8f63ad1b00 -C extra-filename=-31ebf1ee06936497 --out-dir /opt/rustwide/target/debug/build/serde_core/31ebf1ee06936497/out --cap-lints allow --cap-lints=forbid --force-warn=unused_crate_dependencies --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" "c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462", kill_on_drop: false }`
[INFO] [stdout] c0df2176a741ccfbdf052fcbc870c565975d38a7c2a7bfd8b0aace3deae8d462
