[INFO] cloning repository https://github.com/FreeMasen/robohome_again
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FreeMasen/robohome_again" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreeMasen%2Frobohome_again", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreeMasen%2Frobohome_again'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9009d0ad30365bd0edf5daf31b2abc0e81ec896c
[INFO] checking FreeMasen/robohome_again against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreeMasen%2Frobohome_again" "/workspace/builds/worker-91/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-91/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FreeMasen/robohome_again 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/FreeMasen/robohome_again
[INFO] finished tweaking git repo https://github.com/FreeMasen/robohome_again
[INFO] tweaked toml for git repo https://github.com/FreeMasen/robohome_again written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate git repo https://github.com/FreeMasen/robohome_again 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 reqwest v0.9.4
[INFO] [stderr]   Downloaded MacTypes-sys v1.3.0
[INFO] [stderr]   Downloaded tokio-reactor v0.1.6
[INFO] [stderr]   Downloaded tokio v0.1.11
[INFO] [stderr]   Downloaded tokio-io v0.1.9
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.7
[INFO] [stderr]   Downloaded security-framework-sys v0.2.2
[INFO] [stderr]   Downloaded tokio-timer v0.2.7
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.3
[INFO] [stderr]   Downloaded syn v0.15.11
[INFO] [stderr]   Downloaded subtle v0.7.1
[INFO] [stderr]   Downloaded headers-core v0.0.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.29
[INFO] [stderr]   Downloaded postgres-derive v0.3.3
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.29
[INFO] [stderr]   Downloaded tokio-uds v0.2.2
[INFO] [stderr]   Downloaded headers-derive v0.0.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.29
[INFO] [stderr]   Downloaded tungstenite v0.6.0
[INFO] [stderr]   Downloaded docopt v1.0.2
[INFO] [stderr]   Downloaded x25519-dalek v0.3.0
[INFO] [stderr]   Downloaded headers-ext v0.0.3
[INFO] [stderr]   Downloaded hyper v0.12.11
[INFO] [stderr]   Downloaded curve25519-dalek v0.19.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.29
[INFO] [stderr]   Downloaded warp v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 269ce68d60861320a861132ca3ee9caeb8906363ed2e086ce56cbf0e5d6d1286
[INFO] running `Command { std: "docker" "start" "-a" "269ce68d60861320a861132ca3ee9caeb8906363ed2e086ce56cbf0e5d6d1286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "269ce68d60861320a861132ca3ee9caeb8906363ed2e086ce56cbf0e5d6d1286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "269ce68d60861320a861132ca3ee9caeb8906363ed2e086ce56cbf0e5d6d1286", kill_on_drop: false }`
[INFO] [stdout] 269ce68d60861320a861132ca3ee9caeb8906363ed2e086ce56cbf0e5d6d1286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 27831bfc3adb3a53a4ac544beec3e3e58550f168e0811f6c9465d25db2ffdd18
[INFO] running `Command { std: "docker" "start" "-a" "27831bfc3adb3a53a4ac544beec3e3e58550f168e0811f6c9465d25db2ffdd18", 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" "27831bfc3adb3a53a4ac544beec3e3e58550f168e0811f6c9465d25db2ffdd18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27831bfc3adb3a53a4ac544beec3e3e58550f168e0811f6c9465d25db2ffdd18", kill_on_drop: false }`
[INFO] [stdout] 27831bfc3adb3a53a4ac544beec3e3e58550f168e0811f6c9465d25db2ffdd18