[INFO] fetching crate libp2prs-kad 0.2.2...
[INFO] checking libp2prs-kad-0.2.2 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate libp2prs-kad 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libp2prs-kad 0.2.2 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2prs-kad 0.2.2
[INFO] finished tweaking crates.io crate libp2prs-kad 0.2.2
[INFO] tweaked toml for crates.io crate libp2prs-kad 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate libp2prs-kad 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 535813fd9be2cf3764efd707b6e7ec7ff71081bd9152e6e72b6ccfbcc82017ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "535813fd9be2cf3764efd707b6e7ec7ff71081bd9152e6e72b6ccfbcc82017ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "535813fd9be2cf3764efd707b6e7ec7ff71081bd9152e6e72b6ccfbcc82017ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535813fd9be2cf3764efd707b6e7ec7ff71081bd9152e6e72b6ccfbcc82017ef", kill_on_drop: false }`
[INFO] [stdout] 535813fd9be2cf3764efd707b6e7ec7ff71081bd9152e6e72b6ccfbcc82017ef
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8154396ffa54a76bd5f931c57ac9e24c2bf5ee91aea74cb367cf56858e07cbc7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8154396ffa54a76bd5f931c57ac9e24c2bf5ee91aea74cb367cf56858e07cbc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]    Compiling rustyline-derive v0.3.1
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking multihash v0.13.2
[INFO] [stderr]     Checking uint v0.9.0
[INFO] [stderr]     Checking libp2prs-multiaddr v0.2.2
[INFO] [stderr]     Checking parity-scale-codec v1.3.7
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking dirs-next v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking nb-connect v1.0.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking curve25519-dalek v3.0.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking if-watch v0.1.8
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling libp2prs-core v0.2.2
[INFO] [stderr]    Compiling libp2prs-swarm v0.2.2
[INFO] [stderr]    Compiling libp2prs-secio v0.2.2
[INFO] [stderr]    Compiling libp2prs-kad v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libp2prs-plaintext v0.2.2
[INFO] [stderr]     Checking rustyline v6.3.0
[INFO] [stderr]     Checking xcli v0.5.2
[INFO] [stderr]     Checking impl-codec v0.4.2
[INFO] [stderr]     Checking primitive-types v0.8.0
[INFO] [stderr]     Checking libp2prs-runtime v0.2.2
[INFO] [stderr]     Checking libp2prs-mplex v0.2.2
[INFO] [stderr]     Checking libp2prs-tcp v0.2.2
[INFO] [stderr]     Checking libp2prs-yamux v0.2.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "8154396ffa54a76bd5f931c57ac9e24c2bf5ee91aea74cb367cf56858e07cbc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8154396ffa54a76bd5f931c57ac9e24c2bf5ee91aea74cb367cf56858e07cbc7", kill_on_drop: false }`
[INFO] [stdout] 8154396ffa54a76bd5f931c57ac9e24c2bf5ee91aea74cb367cf56858e07cbc7