[INFO] cloning repository https://github.com/folex/libp2p-multilang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/folex/libp2p-multilang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffolex%2Flibp2p-multilang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffolex%2Flibp2p-multilang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40f5d9bffe983480402ce30ac46e0972a4b6cb2c
[INFO] checking folex/libp2p-multilang against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffolex%2Flibp2p-multilang" "/workspace/builds/worker-46/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-46/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/folex/libp2p-multilang 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/folex/libp2p-multilang
[INFO] finished tweaking git repo https://github.com/folex/libp2p-multilang
[INFO] tweaked toml for git repo https://github.com/folex/libp2p-multilang written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] crate git repo https://github.com/folex/libp2p-multilang 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 memoffset v0.5.3
[INFO] [stderr]   Downloaded parking_lot v0.8.0
[INFO] [stderr]   Downloaded lock_api v0.2.0
[INFO] [stderr]   Downloaded parking_lot_core v0.5.0
[INFO] [stderr]   Downloaded libp2p-tcp v0.13.0
[INFO] [stderr]   Downloaded tokio-executor v0.1.9
[INFO] [stderr]   Downloaded termcolor v1.0.5
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.2
[INFO] [stderr]   Downloaded mio v0.6.21
[INFO] [stderr]   Downloaded libp2p-deflate v0.5.0
[INFO] [stderr]   Downloaded libp2p-dns v0.13.0
[INFO] [stderr]   Downloaded libp2p-identify v0.13.1
[INFO] [stderr]   Downloaded sha-1 v0.8.1
[INFO] [stderr]   Downloaded bs58 v0.3.0
[INFO] [stderr]   Downloaded wasm-timer v0.1.3
[INFO] [stderr]   Downloaded data-encoding v2.1.2
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.17
[INFO] [stderr]   Downloaded libp2p-floodsub v0.13.0
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded subtle v2.2.2
[INFO] [stderr]   Downloaded tokio-udp v0.1.5
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]   Downloaded clear_on_drop v0.2.3
[INFO] [stderr]   Downloaded sha1 v0.6.0
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.55
[INFO] [stderr]   Downloaded bumpalo v2.6.0
[INFO] [stderr]   Downloaded adler32 v1.0.4
[INFO] [stderr]   Downloaded unsigned-varint v0.2.3
[INFO] [stderr]   Downloaded sourcefile v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.55
[INFO] [stderr]   Downloaded libp2p-core v0.13.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.27
[INFO] [stderr]   Downloaded smallvec v1.0.0
[INFO] [stderr]   Downloaded parity-multihash v0.2.0
[INFO] [stderr]   Downloaded twofish v0.2.0
[INFO] [stderr]   Downloaded ctr v0.3.2
[INFO] [stderr]   Downloaded sha2 v0.8.0
[INFO] [stderr]   Downloaded js-sys v0.3.32
[INFO] [stderr]   Downloaded flate2 v1.0.13
[INFO] [stderr]   Downloaded x25519-dalek v0.5.2
[INFO] [stderr]   Downloaded rustc-hex v2.0.1
[INFO] [stderr]   Downloaded nohash-hasher v0.1.2
[INFO] [stderr]   Downloaded webpki v0.21.0
[INFO] [stderr]   Downloaded tokio-dns-unofficial v0.4.0
[INFO] [stderr]   Downloaded soketto v0.2.3
[INFO] [stderr]   Downloaded tokio-reactor v0.1.11
[INFO] [stderr]   Downloaded tokio-rustls v0.10.2
[INFO] [stderr]   Downloaded tokio-timer v0.2.12
[INFO] [stderr]   Downloaded libp2p-websocket v0.13.0
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded libp2p-wasm-ext v0.6.0
[INFO] [stderr]   Downloaded libp2p-uds v0.13.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.0
[INFO] [stderr]   Downloaded nom v4.2.3
[INFO] [stderr]   Downloaded libp2p-plaintext v0.13.0
[INFO] [stderr]   Downloaded libp2p-mdns v0.13.1
[INFO] [stderr]   Downloaded libp2p-mplex v0.13.0
[INFO] [stderr]   Downloaded uint v0.8.2
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded libp2p-kad v0.13.1
[INFO] [stderr]   Downloaded libp2p-secio v0.13.0
[INFO] [stderr]   Downloaded ipnet v2.1.0
[INFO] [stderr]   Downloaded parity-multiaddr v0.6.0
[INFO] [stderr]   Downloaded libp2p-ping v0.13.1
[INFO] [stderr]   Downloaded multistream-select v0.6.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.55
[INFO] [stderr]   Downloaded libp2p-core-derive v0.13.0
[INFO] [stderr]   Downloaded miniz_oxide v0.3.5
[INFO] [stderr]   Downloaded libp2p-swarm v0.3.0
[INFO] [stderr]   Downloaded weedle v0.10.0
[INFO] [stderr]   Downloaded rw-stream-sink v0.1.2
[INFO] [stderr]   Downloaded libp2p v0.13.1
[INFO] [stderr]   Downloaded wincolor v1.0.2
[INFO] [stderr]   Downloaded lock_api v0.3.2
[INFO] [stderr]   Downloaded protobuf v2.8.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded curve25519-dalek v1.2.3
[INFO] [stderr]   Downloaded rustls v0.16.0
[INFO] [stderr]   Downloaded snow v0.6.2
[INFO] [stderr]   Downloaded curve25519-dalek v2.0.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.55
[INFO] [stderr]   Downloaded base64 v0.10.1
[INFO] [stderr]   Downloaded libsecp256k1 v0.3.3
[INFO] [stderr]   Downloaded blake2 v0.8.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.55
[INFO] [stderr]   Downloaded web-sys v0.3.32
[INFO] [stderr]   Downloaded ring v0.16.9
[INFO] [stderr]   Downloaded yamux v0.2.2
[INFO] [stderr]   Downloaded tokio-stdin-stdout v0.1.5
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.55
[INFO] [stderr]   Downloaded untrusted v0.7.0
[INFO] [stderr]   Downloaded libp2p-noise v0.11.0
[INFO] [stderr]   Downloaded libp2p-yamux v0.13.0
[INFO] [stderr]   Downloaded arrayref v0.3.5
[INFO] [stderr]   Downloaded aes-ctr v0.3.0
[INFO] [stderr]   Downloaded scopeguard v1.0.0
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.6
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.6
[INFO] [stderr]   Downloaded tokio-sync v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] a70e7ba5b2ecc643195ddb5bd06b2082905d8f2ab559e6773a148ca0ab0c84d5
[INFO] running `Command { std: "docker" "start" "-a" "a70e7ba5b2ecc643195ddb5bd06b2082905d8f2ab559e6773a148ca0ab0c84d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a70e7ba5b2ecc643195ddb5bd06b2082905d8f2ab559e6773a148ca0ab0c84d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70e7ba5b2ecc643195ddb5bd06b2082905d8f2ab559e6773a148ca0ab0c84d5", kill_on_drop: false }`
[INFO] [stdout] a70e7ba5b2ecc643195ddb5bd06b2082905d8f2ab559e6773a148ca0ab0c84d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 5d4c387146ef42bf59dcf1bd8103a601c5e8c6e0958c19f8b55560afd7bb084d
[INFO] running `Command { std: "docker" "start" "-a" "5d4c387146ef42bf59dcf1bd8103a601c5e8c6e0958c19f8b55560afd7bb084d", 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" "5d4c387146ef42bf59dcf1bd8103a601c5e8c6e0958c19f8b55560afd7bb084d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d4c387146ef42bf59dcf1bd8103a601c5e8c6e0958c19f8b55560afd7bb084d", kill_on_drop: false }`
[INFO] [stdout] 5d4c387146ef42bf59dcf1bd8103a601c5e8c6e0958c19f8b55560afd7bb084d