[INFO] fetching crate magne-flame 0.1.1...
[INFO] checking magne-flame-0.1.1 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate magne-flame 0.1.1 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate magne-flame 0.1.1 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 crates.io crate magne-flame 0.1.1
[INFO] finished tweaking crates.io crate magne-flame 0.1.1
[INFO] tweaked toml for crates.io crate magne-flame 0.1.1 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate crates.io crate magne-flame 0.1.1 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 mime v0.3.14
[INFO] [stderr]   Downloaded actix-macros v0.1.1
[INFO] [stderr]   Downloaded indexmap v1.3.0
[INFO] [stderr]   Downloaded trust-dns-resolver v0.18.0-alpha.2
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded actix-codec v0.2.0
[INFO] [stderr]   Downloaded linked-hash-map v0.5.2
[INFO] [stderr]   Downloaded tokio v0.2.6
[INFO] [stderr]   Downloaded derive_more v0.99.2
[INFO] [stderr]   Downloaded num_cpus v1.11.1
[INFO] [stderr]   Downloaded actix-rt v1.0.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.5
[INFO] [stderr]   Downloaded actix-threadpool v0.3.1
[INFO] [stderr]   Downloaded actix_derive v0.5.0
[INFO] [stderr]   Downloaded copyless v0.1.4
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded ipconfig v0.2.1
[INFO] [stderr]   Downloaded actix-service v1.0.1
[INFO] [stderr]   Downloaded resolv-conf v0.6.2
[INFO] [stderr]   Downloaded futures-executor v0.3.1
[INFO] [stderr]   Downloaded actix-connect v1.0.1
[INFO] [stderr]   Downloaded actix-utils v1.0.4
[INFO] [stderr]   Downloaded enum-as-inner v0.3.0
[INFO] [stderr]   Downloaded trust-dns-proto v0.18.0-alpha.2
[INFO] [stderr]   Downloaded actix v0.9.0
[INFO] [stderr]   Downloaded futures v0.3.1
[INFO] [stderr]   Downloaded mio-uds v0.6.7
[INFO] [stderr]   Downloaded widestring v0.4.0
[INFO] [stderr]   Downloaded pin-project-lite v0.1.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.0
[INFO] [stderr]   Downloaded socket2 v0.3.11
[INFO] [stderr]   Downloaded arc-swap v0.4.4
[INFO] [stderr]   Downloaded pin-project-internal v0.4.6
[INFO] [stderr]   Downloaded pin-project v0.4.6
[INFO] [stderr]   Downloaded lock_api v0.3.2
[INFO] [stderr]   Downloaded parking_lot_core v0.7.0
[INFO] [stderr]   Downloaded parking_lot v0.10.0
[INFO] [stderr]   Downloaded async-trait v0.1.21
[INFO] [stderr]   Downloaded quick-error v1.2.2
[INFO] [stderr]   Downloaded futures-macro v0.3.1
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.3
[INFO] [stderr]   Downloaded actix-http v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 63f9600cd23c00ba9f59bceab05a876aff8f439315723540c07627a6df6ce0e2
[INFO] running `Command { std: "docker" "start" "-a" "63f9600cd23c00ba9f59bceab05a876aff8f439315723540c07627a6df6ce0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63f9600cd23c00ba9f59bceab05a876aff8f439315723540c07627a6df6ce0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f9600cd23c00ba9f59bceab05a876aff8f439315723540c07627a6df6ce0e2", kill_on_drop: false }`
[INFO] [stdout] 63f9600cd23c00ba9f59bceab05a876aff8f439315723540c07627a6df6ce0e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 81833531a38173c85870e06d417fe1120ab23b416ac44014e0a63fd368f591a3
[INFO] running `Command { std: "docker" "start" "-a" "81833531a38173c85870e06d417fe1120ab23b416ac44014e0a63fd368f591a3", 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" "81833531a38173c85870e06d417fe1120ab23b416ac44014e0a63fd368f591a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81833531a38173c85870e06d417fe1120ab23b416ac44014e0a63fd368f591a3", kill_on_drop: false }`
[INFO] [stdout] 81833531a38173c85870e06d417fe1120ab23b416ac44014e0a63fd368f591a3