[INFO] fetching crate kbs2 0.3.1-rc.1...
[INFO] checking kbs2-0.3.1-rc.1 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate kbs2 0.3.1-rc.1 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate kbs2 0.3.1-rc.1 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 crates.io crate kbs2 0.3.1-rc.1
[INFO] finished tweaking crates.io crate kbs2 0.3.1-rc.1
[INFO] tweaked toml for crates.io crate kbs2 0.3.1-rc.1 written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] crate crates.io crate kbs2 0.3.1-rc.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] [stderr]   Downloaded clap_generate v3.0.0-beta.2
[INFO] [stderr]   Downloaded dialoguer v0.8.0
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded whoami v1.1.2
[INFO] [stderr]   Downloaded age-core v0.6.0
[INFO] [stderr]   Downloaded fluent v0.15.0
[INFO] [stderr]   Downloaded fluent-syntax v0.11.0
[INFO] [stderr]   Downloaded intl-memoizer v0.5.1
[INFO] [stderr]   Downloaded cookie-factory v0.3.2
[INFO] [stderr]   Downloaded rust-embed-impl v5.9.0
[INFO] [stderr]   Downloaded rust-embed-utils v5.1.0
[INFO] [stderr]   Downloaded crypto-mac v0.11.0
[INFO] [stderr]   Downloaded hkdf v0.11.0
[INFO] [stderr]   Downloaded bech32 v0.8.0
[INFO] [stderr]   Downloaded fluent-bundle v0.15.1
[INFO] [stderr]   Downloaded i18n-embed v0.12.0
[INFO] [stderr]   Downloaded c2-chacha v0.3.0
[INFO] [stderr]   Downloaded age v0.6.0
[INFO] [stderr]   Downloaded scrypt v0.7.0
[INFO] [stderr]   Downloaded ouroboros_macro v0.9.2
[INFO] [stderr]   Downloaded ouroboros v0.9.2
[INFO] [stderr]   Downloaded i18n-embed-impl v0.7.0
[INFO] [stderr]   Downloaded rust-embed v5.9.0
[INFO] [stderr]   Downloaded salsa20 v0.8.0
[INFO] [stderr]   Downloaded i18n-embed-fl v0.5.0
[INFO] [stderr]   Downloaded find-crate v0.6.3
[INFO] [stderr]   Downloaded i18n-config v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 3822c802f7d80af6287c66a41113c8109ebac97a29e0f0d968393d195b6d7974
[INFO] running `Command { std: "docker" "start" "-a" "3822c802f7d80af6287c66a41113c8109ebac97a29e0f0d968393d195b6d7974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3822c802f7d80af6287c66a41113c8109ebac97a29e0f0d968393d195b6d7974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3822c802f7d80af6287c66a41113c8109ebac97a29e0f0d968393d195b6d7974", kill_on_drop: false }`
[INFO] [stdout] 3822c802f7d80af6287c66a41113c8109ebac97a29e0f0d968393d195b6d7974
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] b6922fdd6c7a831e6893f1f9188725de8f78bba3dfd884983f4c73dd054f52f6
[INFO] running `Command { std: "docker" "start" "-a" "b6922fdd6c7a831e6893f1f9188725de8f78bba3dfd884983f4c73dd054f52f6", 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" "b6922fdd6c7a831e6893f1f9188725de8f78bba3dfd884983f4c73dd054f52f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6922fdd6c7a831e6893f1f9188725de8f78bba3dfd884983f4c73dd054f52f6", kill_on_drop: false }`
[INFO] [stdout] b6922fdd6c7a831e6893f1f9188725de8f78bba3dfd884983f4c73dd054f52f6