[INFO] cloning repository https://github.com/strymon-system/rescaling-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/strymon-system/rescaling-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrymon-system%2Frescaling-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrymon-system%2Frescaling-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1eadced8f1d04b5e84d8a6179a895a5d1b6fe11a
[INFO] checking strymon-system/rescaling-examples against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrymon-system%2Frescaling-examples" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/strymon-system/rescaling-examples on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/strymon-system/rescaling-examples
[INFO] finished tweaking git repo https://github.com/strymon-system/rescaling-examples
[INFO] tweaked toml for git repo https://github.com/strymon-system/rescaling-examples written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/strymon-system/rescaling-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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 serde_derive v1.0.99
[INFO] [stderr]   Downloaded winconsole v0.10.0
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded cc v1.0.41
[INFO] [stderr]   Downloaded serde v1.0.99
[INFO] [stderr]   Downloaded wasi v0.5.0
[INFO] [stderr]   Downloaded getrandom v0.1.11
[INFO] [stderr]   Downloaded rgb v0.8.14
[INFO] [stderr]   Downloaded colored v1.8.0
[INFO] [stderr]   Downloaded math v0.0.2
[INFO] [stderr]   Downloaded num_cpus v0.2.13
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] [stderr]   Downloaded abomonation v0.7.3
[INFO] [stderr]   Downloaded rdkafka-sys v0.11.3-1
[INFO] [stderr]   Downloaded abomonation_derive v0.4.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.1
[INFO] [stderr]   Downloaded streaming-harness v0.1.1
[INFO] [stderr]   Downloaded zipf v4.0.1
[INFO] [stderr]   Downloaded hdrhist v0.5.0
[INFO] [stderr]   Downloaded streaming-harness-hdrhist v0.2.1
[INFO] [stderr]   Downloaded rdkafka v0.14.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07624649361d6be34d4000df3d131be44b8480af844d857141287ce277f412e4
[INFO] running `Command { std: "docker" "start" "-a" "07624649361d6be34d4000df3d131be44b8480af844d857141287ce277f412e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07624649361d6be34d4000df3d131be44b8480af844d857141287ce277f412e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07624649361d6be34d4000df3d131be44b8480af844d857141287ce277f412e4", kill_on_drop: false }`
[INFO] [stdout] 07624649361d6be34d4000df3d131be44b8480af844d857141287ce277f412e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b43b8335afecd6193029b40c95387543572c7c000357ab8bc14d06fd0ab140a
[INFO] running `Command { std: "docker" "start" "-a" "3b43b8335afecd6193029b40c95387543572c7c000357ab8bc14d06fd0ab140a", 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" "3b43b8335afecd6193029b40c95387543572c7c000357ab8bc14d06fd0ab140a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b43b8335afecd6193029b40c95387543572c7c000357ab8bc14d06fd0ab140a", kill_on_drop: false }`
[INFO] [stdout] 3b43b8335afecd6193029b40c95387543572c7c000357ab8bc14d06fd0ab140a