[INFO] fetching crate libp2p-yamux 0.32.0...
[INFO] checking libp2p-yamux-0.32.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate libp2p-yamux 0.32.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate libp2p-yamux 0.32.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-yamux 0.32.0
[INFO] finished tweaking crates.io crate libp2p-yamux 0.32.0
[INFO] tweaked toml for crates.io crate libp2p-yamux 0.32.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded asn1_der v0.7.4
[INFO] [stderr]   Downloaded multistream-select v0.10.2
[INFO] [stderr]   Downloaded prost-derive v0.7.0
[INFO] [stderr]   Downloaded prost v0.7.0
[INFO] [stderr]   Downloaded prost-types v0.7.0
[INFO] [stderr]   Downloaded unsigned-varint v0.7.0
[INFO] [stderr]   Downloaded libp2p-core v0.28.3
[INFO] [stderr]   Downloaded parity-multiaddr v0.11.2
[INFO] [stderr]   Downloaded which v4.1.0
[INFO] [stderr]   Downloaded prost-build v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5421e52aa70711651982e4c0d85508b9e73593684d85252962b77d19e0bb8e40
[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" "5421e52aa70711651982e4c0d85508b9e73593684d85252962b77d19e0bb8e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5421e52aa70711651982e4c0d85508b9e73593684d85252962b77d19e0bb8e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5421e52aa70711651982e4c0d85508b9e73593684d85252962b77d19e0bb8e40", kill_on_drop: false }`
[INFO] [stdout] 5421e52aa70711651982e4c0d85508b9e73593684d85252962b77d19e0bb8e40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 9ce4f33a565adfa24ffee14fa2190dcfb7dd8e8a45d5fe17cf5cc33c25523da2
[INFO] running `Command { std: "docker" "start" "-a" "9ce4f33a565adfa24ffee14fa2190dcfb7dd8e8a45d5fe17cf5cc33c25523da2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]     Checking unsigned-varint v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking asn1_der v0.7.4
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking ed25519 v1.1.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking sha2 v0.9.4
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling multihash-derive v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking curve25519-dalek v3.1.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking multihash v0.13.2
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking parity-multiaddr v0.11.2
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking multistream-select v0.10.2
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking yamux v0.9.0
[INFO] [stderr]    Compiling libp2p-core v0.28.3
[INFO] [stderr]     Checking libp2p-yamux v0.32.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 47s
[INFO] running `Command { std: "docker" "inspect" "9ce4f33a565adfa24ffee14fa2190dcfb7dd8e8a45d5fe17cf5cc33c25523da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ce4f33a565adfa24ffee14fa2190dcfb7dd8e8a45d5fe17cf5cc33c25523da2", kill_on_drop: false }`
[INFO] [stdout] 9ce4f33a565adfa24ffee14fa2190dcfb7dd8e8a45d5fe17cf5cc33c25523da2