[INFO] fetching crate bellperson 0.16.1...
[INFO] checking bellperson-0.16.1 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate bellperson 0.16.1 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate bellperson 0.16.1 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] removed /workspace/builds/worker-63/source/rust-toolchain
[INFO] started tweaking crates.io crate bellperson 0.16.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate bellperson 0.16.1
[INFO] tweaked toml for crates.io crate bellperson 0.16.1 written to /workspace/builds/worker-63/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 hex-literal v0.3.3
[INFO] [stderr]   Downloaded groupy v0.4.1
[INFO] [stderr]   Downloaded fff v0.3.1
[INFO] [stderr]   Downloaded ff-cl-gen v0.3.0
[INFO] [stderr]   Downloaded blstrs v0.3.0
[INFO] [stderr]   Downloaded flume v0.10.8
[INFO] [stderr]   Downloaded cl-sys v0.4.2
[INFO] [stderr]   Downloaded opencl3 v0.2.4
[INFO] [stderr]   Downloaded fff_derive v0.3.0
[INFO] [stderr]   Downloaded rust-gpu-tools v0.4.1
[INFO] [stderr]   Downloaded cl3 v0.4.1
[INFO] [stderr]   Downloaded blst v0.3.3
[INFO] [stderr]   Downloaded paired v0.22.0
[INFO] [stderr]   Downloaded yastl v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] cfdbc18143d3f9779145695c9be21ce60f162cab6f29e855acadc7c620b7b28e
[INFO] running `Command { std: "docker" "start" "-a" "cfdbc18143d3f9779145695c9be21ce60f162cab6f29e855acadc7c620b7b28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfdbc18143d3f9779145695c9be21ce60f162cab6f29e855acadc7c620b7b28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfdbc18143d3f9779145695c9be21ce60f162cab6f29e855acadc7c620b7b28e", kill_on_drop: false }`
[INFO] [stdout] cfdbc18143d3f9779145695c9be21ce60f162cab6f29e855acadc7c620b7b28e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 5ddb9a16d8c87aef5d8115b4999c6f81789245aa7860d63f03968a8a61adfc1f
[INFO] running `Command { std: "docker" "start" "-a" "5ddb9a16d8c87aef5d8115b4999c6f81789245aa7860d63f03968a8a61adfc1f", 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" "5ddb9a16d8c87aef5d8115b4999c6f81789245aa7860d63f03968a8a61adfc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ddb9a16d8c87aef5d8115b4999c6f81789245aa7860d63f03968a8a61adfc1f", kill_on_drop: false }`
[INFO] [stdout] 5ddb9a16d8c87aef5d8115b4999c6f81789245aa7860d63f03968a8a61adfc1f