[INFO] cloning repository https://github.com/rphmeier/pixelflood
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rphmeier/pixelflood" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphmeier%2Fpixelflood", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphmeier%2Fpixelflood'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce41821554adfcb9a52406f5562286980ccbc7b0
[INFO] checking rphmeier/pixelflood against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphmeier%2Fpixelflood" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rphmeier/pixelflood 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/rphmeier/pixelflood
[INFO] finished tweaking git repo https://github.com/rphmeier/pixelflood
[INFO] tweaked toml for git repo https://github.com/rphmeier/pixelflood written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rphmeier/pixelflood 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]     Updating git repository `https://github.com/libp2p/rust-libp2p`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crunchy v0.1.6
[INFO] [stderr]   Downloaded stdweb-internal-runtime v0.1.3
[INFO] [stderr]   Downloaded serde_derive v1.0.83
[INFO] [stderr]   Downloaded base-x v0.2.3
[INFO] [stderr]   Downloaded ctr v0.1.1
[INFO] [stderr]   Downloaded aes-ctr v0.1.0
[INFO] [stderr]   Downloaded opaque-debug v0.2.1
[INFO] [stderr]   Downloaded curve25519-dalek v0.20.0
[INFO] [stderr]   Downloaded byte-tools v0.3.0
[INFO] [stderr]   Downloaded tk-listen v0.2.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.49
[INFO] [stderr]   Downloaded etrace v1.1.1
[INFO] [stderr]   Downloaded stream-cipher v0.1.1
[INFO] [stderr]   Downloaded aes-soft v0.2.0
[INFO] [stderr]   Downloaded tokio-tls v0.2.0
[INFO] [stderr]   Downloaded aesni v0.4.1
[INFO] [stderr]   Downloaded MacTypes-sys v1.3.0
[INFO] [stderr]   Downloaded aio-limited v0.1.0
[INFO] [stderr]   Downloaded tokio-dns-unofficial v0.4.0
[INFO] [stderr]   Downloaded bigint v4.4.1
[INFO] [stderr]   Downloaded stdweb v0.4.12
[INFO] [stderr]   Downloaded block-cipher-trait v0.5.3
[INFO] [stderr]   Downloaded opaque-debug v0.1.1
[INFO] [stderr]   Downloaded quick-error v0.1.4
[INFO] [stderr]   Downloaded serde v1.0.83
[INFO] [stderr]   Downloaded nohash-hasher v0.1.1
[INFO] [stderr]   Downloaded ed25519-dalek v0.8.1
[INFO] [stderr]   Downloaded crypto-mac v0.6.2
[INFO] [stderr]   Downloaded hmac v0.6.3
[INFO] [stderr]   Downloaded stdweb-derive v0.5.1
[INFO] [stderr]   Downloaded twofish v0.1.0
[INFO] [stderr]   Downloaded websocket v0.21.1
[INFO] [stderr]   Downloaded blake2 v0.8.0
[INFO] [stderr]   Downloaded security-framework-sys v0.2.2
[INFO] [stderr]   Downloaded block-padding v0.1.2
[INFO] [stderr]   Downloaded tiny-keccak v1.4.2
[INFO] [stderr]   Downloaded block-buffer v0.7.0
[INFO] [stderr]   Downloaded unsigned-varint v0.2.1
[INFO] [stderr]   Downloaded asn1_der v0.5.10
[INFO] [stderr]   Downloaded secp256k1 v0.11.6
[INFO] [stderr]   Downloaded failure v0.1.4
[INFO] [stderr]   Downloaded stdweb-internal-macros v0.2.4
[INFO] [stderr]   Downloaded bs58 v0.2.2
[INFO] [stderr]   Downloaded yamux v0.1.4
[INFO] [stderr]   Downloaded protobuf v2.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 20f704723d23bd7888f07feff196b05a7a28452cc947c59822250b2979e73c2d
[INFO] running `Command { std: "docker" "start" "-a" "20f704723d23bd7888f07feff196b05a7a28452cc947c59822250b2979e73c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20f704723d23bd7888f07feff196b05a7a28452cc947c59822250b2979e73c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f704723d23bd7888f07feff196b05a7a28452cc947c59822250b2979e73c2d", kill_on_drop: false }`
[INFO] [stdout] 20f704723d23bd7888f07feff196b05a7a28452cc947c59822250b2979e73c2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 8f4ff391ad08ce1213f9a327781594743029c09cddde18e8b26681541357c62a
[INFO] running `Command { std: "docker" "start" "-a" "8f4ff391ad08ce1213f9a327781594743029c09cddde18e8b26681541357c62a", 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" "8f4ff391ad08ce1213f9a327781594743029c09cddde18e8b26681541357c62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4ff391ad08ce1213f9a327781594743029c09cddde18e8b26681541357c62a", kill_on_drop: false }`
[INFO] [stdout] 8f4ff391ad08ce1213f9a327781594743029c09cddde18e8b26681541357c62a