[INFO] fetching crate libp2p-rs 0.3.0...
[INFO] checking libp2p-rs-0.3.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate libp2p-rs 0.3.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate libp2p-rs 0.3.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-75/source/rust-toolchain
[INFO] started tweaking crates.io crate libp2p-rs 0.3.0
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate libp2p-rs 0.3.0
[INFO] tweaked toml for crates.io crate libp2p-rs 0.3.0 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate crates.io crate libp2p-rs 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f179557ab4351c7bc56a0972d16acd79941e779579c24147771117c84e89e88
[INFO] running `Command { std: "docker" "start" "-a" "4f179557ab4351c7bc56a0972d16acd79941e779579c24147771117c84e89e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f179557ab4351c7bc56a0972d16acd79941e779579c24147771117c84e89e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f179557ab4351c7bc56a0972d16acd79941e779579c24147771117c84e89e88", kill_on_drop: false }`
[INFO] [stdout] 4f179557ab4351c7bc56a0972d16acd79941e779579c24147771117c84e89e88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6810e6e8b286542f042a639e6aaf69858873f187ea6c1265b9709136ca0ba45
[INFO] running `Command { std: "docker" "start" "-a" "b6810e6e8b286542f042a639e6aaf69858873f187ea6c1265b9709136ca0ba45", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking subtle v2.4.0
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[INFO] [stderr]     Checking fastrand v1.4.0
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[INFO] [stderr]     Checking opaque-debug v0.2.3
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[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
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[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]     Checking signature v1.3.0
[INFO] [stderr]     Checking fake-simd v0.1.2
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[INFO] [stderr]     Checking unsigned-varint v0.4.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]    Compiling http-types v2.10.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking infer v0.2.3
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]    Compiling protobuf v2.22.0
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]     Checking route-recognizer v0.2.0
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[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling secp256k1-sys v0.4.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling snow v0.7.2
[INFO] [stderr] error: could not compile `ring`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="dev_urandom_fallback"' --cfg 'feature="once_cell"' --cfg 'feature="std"' -C metadata=f7fba4df315631c6 -C extra-filename=-f7fba4df315631c6 --out-dir /opt/rustwide/target/debug/build/ring-f7fba4df315631c6 -L dependency=/opt/rustwide/target/debug/deps --extern cc=/opt/rustwide/target/debug/deps/libcc-179828e65b0b359f.rlib --cap-lints allow --cap-lints=forbid` (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" "b6810e6e8b286542f042a639e6aaf69858873f187ea6c1265b9709136ca0ba45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6810e6e8b286542f042a639e6aaf69858873f187ea6c1265b9709136ca0ba45", kill_on_drop: false }`
[INFO] [stdout] b6810e6e8b286542f042a639e6aaf69858873f187ea6c1265b9709136ca0ba45