[INFO] fetching crate libp2prs-swarm 0.1.0...
[INFO] checking libp2prs-swarm-0.1.0 against beta for pr-78714
[INFO] extracting crate libp2prs-swarm 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate libp2prs-swarm 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2prs-swarm 0.1.0
[INFO] finished tweaking crates.io crate libp2prs-swarm 0.1.0
[INFO] tweaked toml for crates.io crate libp2prs-swarm 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0bf8794bb6dd6f42a9d9d67957e4d7d88242ea545d5161991a60ac349cc6d0b9
[INFO] running `Command { std: "docker" "start" "-a" "0bf8794bb6dd6f42a9d9d67957e4d7d88242ea545d5161991a60ac349cc6d0b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf8794bb6dd6f42a9d9d67957e4d7d88242ea545d5161991a60ac349cc6d0b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf8794bb6dd6f42a9d9d67957e4d7d88242ea545d5161991a60ac349cc6d0b9", kill_on_drop: false }`
[INFO] [stdout] 0bf8794bb6dd6f42a9d9d67957e4d7d88242ea545d5161991a60ac349cc6d0b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 55c20870e3312026c03c7d65a8d757daf85e8141a12580b504927a0125afa7a9
[INFO] running `Command { std: "docker" "start" "-a" "55c20870e3312026c03c7d65a8d757daf85e8141a12580b504927a0125afa7a9", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking unsigned-varint v0.4.0
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking data-encoding v2.3.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking blake2s_simd v0.5.11
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking salsa20-core v0.2.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking sha2 v0.9.2
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha-1 v0.9.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking salsa20 v0.3.0
[INFO] [stderr]     Checking multihash v0.11.4
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]     Checking libp2prs-multiaddr v0.1.0
[INFO] [stderr]     Checking asn1_der v0.6.3
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking libp2prs-traits v0.1.0
[INFO] [stderr]    Compiling libp2prs-core v0.1.0
[INFO] [stderr]    Compiling libp2prs-swarm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "55c20870e3312026c03c7d65a8d757daf85e8141a12580b504927a0125afa7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55c20870e3312026c03c7d65a8d757daf85e8141a12580b504927a0125afa7a9", kill_on_drop: false }`
[INFO] [stdout] 55c20870e3312026c03c7d65a8d757daf85e8141a12580b504927a0125afa7a9