[INFO] cloning repository https://github.com/LukasKalbertodt/grakawa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LukasKalbertodt/grakawa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukasKalbertodt%2Fgrakawa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukasKalbertodt%2Fgrakawa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e458c5c537e23310fd52923ae64f7c9d23dee2b
[INFO] checking LukasKalbertodt/grakawa against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukasKalbertodt%2Fgrakawa" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LukasKalbertodt/grakawa 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 git repo https://github.com/LukasKalbertodt/grakawa
[INFO] finished tweaking git repo https://github.com/LukasKalbertodt/grakawa
[INFO] tweaked toml for git repo https://github.com/LukasKalbertodt/grakawa written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/LukasKalbertodt/grakawa already has a lockfile, it will not be regenerated
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded ego-tree v0.3.0
[INFO] [stderr]   Downloaded procedural-masquerade v0.1.5
[INFO] [stderr]   Downloaded cssparser-macros v0.3.3
[INFO] [stderr]   Downloaded cssparser v0.23.5
[INFO] [stderr]   Downloaded utf-8 v0.7.2
[INFO] [stderr]   Downloaded scraper v0.6.0
[INFO] [stderr]   Downloaded string_cache v0.7.2
[INFO] [stderr]   Downloaded html5ever v0.22.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 08c00edeb44779dc44240ef0dda0ebdd20355e3afe6161e1c9f948fba6c3459f
[INFO] running `Command { std: "docker" "start" "-a" "08c00edeb44779dc44240ef0dda0ebdd20355e3afe6161e1c9f948fba6c3459f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08c00edeb44779dc44240ef0dda0ebdd20355e3afe6161e1c9f948fba6c3459f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c00edeb44779dc44240ef0dda0ebdd20355e3afe6161e1c9f948fba6c3459f", kill_on_drop: false }`
[INFO] [stdout] 08c00edeb44779dc44240ef0dda0ebdd20355e3afe6161e1c9f948fba6c3459f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 30f32747dccaadce65bd9c8c35262a17e52ae6c40bc29d07eca2cd726d461441
[INFO] running `Command { std: "docker" "start" "-a" "30f32747dccaadce65bd9c8c35262a17e52ae6c40bc29d07eca2cd726d461441", 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" "30f32747dccaadce65bd9c8c35262a17e52ae6c40bc29d07eca2cd726d461441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f32747dccaadce65bd9c8c35262a17e52ae6c40bc29d07eca2cd726d461441", kill_on_drop: false }`
[INFO] [stdout] 30f32747dccaadce65bd9c8c35262a17e52ae6c40bc29d07eca2cd726d461441