[INFO] fetching crate libp2p 0.41.0...
[INFO] testing libp2p-0.41.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate libp2p 0.41.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libp2p 0.41.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config.toml
[INFO] started tweaking crates.io crate libp2p 0.41.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate libp2p 0.41.0
[INFO] tweaked toml for crates.io crate libp2p 0.41.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate libp2p 0.41.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] 1a8ab63978490e638326f62adfdf2a544a1c462c7a0ba32a31f1f4cdd753b894
[INFO] running `Command { std: "docker" "start" "-a" "1a8ab63978490e638326f62adfdf2a544a1c462c7a0ba32a31f1f4cdd753b894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a8ab63978490e638326f62adfdf2a544a1c462c7a0ba32a31f1f4cdd753b894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8ab63978490e638326f62adfdf2a544a1c462c7a0ba32a31f1f4cdd753b894", kill_on_drop: false }`
[INFO] [stdout] 1a8ab63978490e638326f62adfdf2a544a1c462c7a0ba32a31f1f4cdd753b894
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d05175c720f0d6d4aa67934c9e18b6bc0e2e4f8447a5a3bb13aff1e880f378c0
[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" "d05175c720f0d6d4aa67934c9e18b6bc0e2e4f8447a5a3bb13aff1e880f378c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling fixedbitset v0.4.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling opaque-debug v0.3.0
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[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
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[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling ed25519 v1.2.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling libz-sys v1.1.3
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[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling quicksink v0.1.2
[INFO] [stderr]    Compiling async-channel v1.6.1
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[INFO] [stderr]    Compiling quote v1.0.10
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[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]    Compiling snow v0.8.0
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling salsa20 v0.9.0
[INFO] [stderr]    Compiling webpki v0.22.0
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling lru v0.6.6
[INFO] [stderr]    Compiling lru v0.7.0
[INFO] [stderr]    Compiling hmac-drbg v0.3.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling webpki-roots v0.22.1
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling cuckoofilter v0.5.0
[INFO] [stderr]    Compiling libsecp256k1 v0.7.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling zeroize_derive v1.2.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling open-metrics-client-derive-text-encode v0.1.1
[INFO] [stderr]    Compiling libp2p-swarm-derive v0.26.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]    Compiling open-metrics-client v0.12.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling curve25519-dalek v3.2.0
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling rustls v0.20.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling x25519-dalek v1.2.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling if-watch v0.2.2
[INFO] [stderr]    Compiling pin-project v0.4.28
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling js-sys v0.3.55
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling prost v0.9.0
[INFO] [stderr]    Compiling multihash-derive v0.7.2
[INFO] [stderr]    Compiling prost-types v0.9.0
[INFO] [stderr]    Compiling futures-rustls v0.22.0
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling asynchronous-codec v0.6.0
[INFO] [stderr]    Compiling trust-dns-proto v0.20.3
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.28
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling rw-stream-sink v0.2.1
[INFO] [stderr]    Compiling soketto v0.7.1
[INFO] [stderr]    Compiling yamux v0.9.0
[INFO] [stderr]    Compiling libp2p-pnet v0.22.0
[INFO] [stderr]    Compiling unsigned-varint v0.7.1
[INFO] [stderr]    Compiling libp2p-core v0.30.0
[INFO] [stderr]    Compiling libp2p-gossipsub v0.34.0
[INFO] [stderr]    Compiling libp2p-identify v0.32.0
[INFO] [stderr]    Compiling libp2p-kad v0.33.0
[INFO] [stderr]    Compiling libp2p-plaintext v0.30.0
[INFO] [stderr]    Compiling libp2p-rendezvous v0.2.0
[INFO] [stderr]    Compiling libp2p-floodsub v0.32.0
[INFO] [stderr]    Compiling libp2p-relay v0.5.0
[INFO] [stderr]    Compiling libp2p-noise v0.33.0
[INFO] [stderr]    Compiling multihash v0.14.0
[INFO] [stderr]    Compiling multistream-select v0.10.4
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.130/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=a7fa762f77dd2206 -C extra-filename=-a7fa762f77dd2206 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e9a1d3c964bf1a85.so --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg iterator_try_fold --cfg num_nonzero --cfg serde_derive --cfg core_try_from --cfg num_nonzero_signed --cfg systemtime_checked_add --cfg std_atomic64 --cfg std_atomic` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d05175c720f0d6d4aa67934c9e18b6bc0e2e4f8447a5a3bb13aff1e880f378c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d05175c720f0d6d4aa67934c9e18b6bc0e2e4f8447a5a3bb13aff1e880f378c0", kill_on_drop: false }`
[INFO] [stdout] d05175c720f0d6d4aa67934c9e18b6bc0e2e4f8447a5a3bb13aff1e880f378c0