[INFO] fetching crate hb 0.0.13...
[INFO] checking hb-0.0.13 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate hb 0.0.13 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate hb 0.0.13 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hb 0.0.13
[INFO] finished tweaking crates.io crate hb 0.0.13
[INFO] tweaked toml for crates.io crate hb 0.0.13 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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" "+39e1293fce4b650061e85dda88aa428f726a8444" "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 sloggers v0.3.6
[INFO] [stderr]   Downloaded term v0.7.0
[INFO] [stderr]   Downloaded take_mut v0.2.2
[INFO] [stderr]   Downloaded nbchan v0.1.3
[INFO] [stderr]   Downloaded fibers v0.1.13
[INFO] [stderr]   Downloaded splay_tree v0.2.10
[INFO] [stderr]   Downloaded procinfo v0.4.2
[INFO] [stderr]   Downloaded httpcodec v0.2.3
[INFO] [stderr]   Downloaded prometrics v0.1.13
[INFO] [stderr]   Downloaded atomic_immut v0.1.4
[INFO] [stderr]   Downloaded toml v0.4.10
[INFO] [stderr]   Downloaded url_serde v0.2.0
[INFO] [stderr]   Downloaded bytecodec v0.4.15
[INFO] [stderr]   Downloaded serdeconv v0.3.0
[INFO] [stderr]   Downloaded libflate v0.1.27
[INFO] [stderr]   Downloaded slog-scope v4.4.0
[INFO] [stderr]   Downloaded slog-async v2.7.0
[INFO] [stderr]   Downloaded slog v2.7.0
[INFO] [stderr]   Downloaded slog-stdlog v3.0.5
[INFO] [stderr]   Downloaded slog-term v2.8.0
[INFO] [stderr]   Downloaded arc-swap v1.3.0
[INFO] [stderr]   Downloaded fibers_http_client v0.1.2
[INFO] [stderr]   Downloaded rmp-serde v0.13.7
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded slog-kvfilter v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f64604fac4479e33c7f16a66bd0010aa92b9133ccf8a9f8efb1732516b3bc69
[INFO] running `Command { std: "docker" "start" "-a" "9f64604fac4479e33c7f16a66bd0010aa92b9133ccf8a9f8efb1732516b3bc69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f64604fac4479e33c7f16a66bd0010aa92b9133ccf8a9f8efb1732516b3bc69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f64604fac4479e33c7f16a66bd0010aa92b9133ccf8a9f8efb1732516b3bc69", kill_on_drop: false }`
[INFO] [stdout] 9f64604fac4479e33c7f16a66bd0010aa92b9133ccf8a9f8efb1732516b3bc69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e36fd34f27e0b20000febb12f808c5eeb4e6af4ec0503fad24923c1004b54e5a
[INFO] running `Command { std: "docker" "start" "-a" "e36fd34f27e0b20000febb12f808c5eeb4e6af4ec0503fad24923c1004b54e5a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "e36fd34f27e0b20000febb12f808c5eeb4e6af4ec0503fad24923c1004b54e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e36fd34f27e0b20000febb12f808c5eeb4e6af4ec0503fad24923c1004b54e5a", kill_on_drop: false }`
[INFO] [stdout] e36fd34f27e0b20000febb12f808c5eeb4e6af4ec0503fad24923c1004b54e5a