[INFO] fetching crate pallet-example-tasks 8.0.0...
[INFO] building pallet-example-tasks-8.0.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate pallet-example-tasks 8.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate pallet-example-tasks 8.0.0
[INFO] finished tweaking crates.io crate pallet-example-tasks 8.0.0
[INFO] tweaked toml for crates.io crate pallet-example-tasks 8.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pallet-example-tasks 8.0.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 341 packages to latest compatible versions
[INFO] [stderr]       Adding frame-benchmarking v35.0.0 (available: v42.0.0)
[INFO] [stderr]       Adding frame-support v35.0.0 (available: v42.0.0)
[INFO] [stderr]       Adding frame-system v35.0.0 (available: v42.0.0)
[INFO] [stderr]       Adding sp-core v34.0.0 (available: v38.0.0)
[INFO] [stderr]       Adding sp-io v37.0.0 (available: v42.0.0)
[INFO] [stderr]       Adding sp-runtime v38.0.1 (available: v43.0.0)
[INFO] [stderr]       Adding unicode-normalization v0.1.22 (available: v0.1.24)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a3953d0cb71b7af65792ea229625ab36ca25aca96218ab8613a7edd64593ca7
[INFO] running `Command { std: "docker" "start" "-a" "8a3953d0cb71b7af65792ea229625ab36ca25aca96218ab8613a7edd64593ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a3953d0cb71b7af65792ea229625ab36ca25aca96218ab8613a7edd64593ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a3953d0cb71b7af65792ea229625ab36ca25aca96218ab8613a7edd64593ca7", kill_on_drop: false }`
[INFO] [stdout] 8a3953d0cb71b7af65792ea229625ab36ca25aca96218ab8613a7edd64593ca7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e40559388a1ed5703419315610a973a84c438ebfaff401485579c7ac4ada5665
[INFO] running `Command { std: "docker" "start" "-a" "e40559388a1ed5703419315610a973a84c438ebfaff401485579c7ac4ada5665", kill_on_drop: false }`
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling parity-scale-codec v3.7.5
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.3
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling fs-err v2.11.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling expander v2.2.1
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling der v0.7.10
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling file-guard v0.2.0
[INFO] [stderr]    Compiling base16ct v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling const_format v0.2.34
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling serdect v0.2.0
[INFO] [stderr]    Compiling impl-serde v0.4.0
[INFO] [stderr]    Compiling ff v0.13.1
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling sp-debug-derive v14.0.0
[INFO] [stderr]    Compiling bitcoin-internals v0.2.0
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling group v0.13.0
[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/4987e9d4227139400384ab59296ffee3b0fb1183/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,link -C embed-bitcode=no --cfg 'feature="result"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "rc", "result", "std", "unstable"))' -C metadata=0d4a207330ac1f5f -C extra-filename=-0ec3bad85959f291 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --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" "e40559388a1ed5703419315610a973a84c438ebfaff401485579c7ac4ada5665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e40559388a1ed5703419315610a973a84c438ebfaff401485579c7ac4ada5665", kill_on_drop: false }`
[INFO] [stdout] e40559388a1ed5703419315610a973a84c438ebfaff401485579c7ac4ada5665