[INFO] fetching crate exocore 0.1.12...
[INFO] building exocore-0.1.12 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate exocore 0.1.12 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate exocore 0.1.12 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exocore 0.1.12
[INFO] finished tweaking crates.io crate exocore 0.1.12
[INFO] tweaked toml for crates.io crate exocore 0.1.12 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lz4_flex v0.8.2
[INFO] [stderr]   Downloaded tantivy-bitpacker v0.1.0
[INFO] [stderr]   Downloaded census v0.4.0
[INFO] [stderr]   Downloaded levenshtein_automata v0.2.1
[INFO] [stderr]   Downloaded bitpacking v0.8.4
[INFO] [stderr]   Downloaded murmurhash32 v0.2.0
[INFO] [stderr]   Downloaded fastdivide v0.3.0
[INFO] [stderr]   Downloaded tantivy-fst v0.3.0
[INFO] [stderr]   Downloaded tantivy v0.15.3
[INFO] [stderr]   Downloaded rust-stemmers v1.2.0
[INFO] [stderr]   Downloaded exocore-apps-macros v0.1.12
[INFO] [stderr]   Downloaded exocore-apps-sdk v0.1.12
[INFO] [stderr]   Downloaded exocore-discovery v0.1.12
[INFO] [stderr]   Downloaded tantivy-query-grammar v0.15.0
[INFO] [stderr]   Downloaded exocore-chain v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66a11f084fe9d617097c7b48c4272f356748d538acce9ee8e78c8e349b292b5b
[INFO] running `Command { std: "docker" "start" "-a" "66a11f084fe9d617097c7b48c4272f356748d538acce9ee8e78c8e349b292b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66a11f084fe9d617097c7b48c4272f356748d538acce9ee8e78c8e349b292b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a11f084fe9d617097c7b48c4272f356748d538acce9ee8e78c8e349b292b5b", kill_on_drop: false }`
[INFO] [stdout] 66a11f084fe9d617097c7b48c4272f356748d538acce9ee8e78c8e349b292b5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 928bde61acd9e0a2dda90bece248b60eaec8818ea089b56180352af4e35e2047
[INFO] running `Command { std: "docker" "start" "-a" "928bde61acd9e0a2dda90bece248b60eaec8818ea089b56180352af4e35e2047", kill_on_drop: false }`
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "928bde61acd9e0a2dda90bece248b60eaec8818ea089b56180352af4e35e2047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928bde61acd9e0a2dda90bece248b60eaec8818ea089b56180352af4e35e2047", kill_on_drop: false }`
[INFO] [stdout] 928bde61acd9e0a2dda90bece248b60eaec8818ea089b56180352af4e35e2047