[INFO] fetching crate libp2p-rs 0.2.0...
[INFO] checking libp2p-rs-0.2.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate libp2p-rs 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate libp2p-rs 0.2.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-rs 0.2.0
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate libp2p-rs 0.2.0
[INFO] tweaked toml for crates.io crate libp2p-rs 0.2.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate libp2p-rs 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] f885ed9f3d2f629f0cb65a3f27356d02b39a39421a2fca8ac661f819316d3898
[INFO] running `Command { std: "docker" "start" "-a" "f885ed9f3d2f629f0cb65a3f27356d02b39a39421a2fca8ac661f819316d3898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f885ed9f3d2f629f0cb65a3f27356d02b39a39421a2fca8ac661f819316d3898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f885ed9f3d2f629f0cb65a3f27356d02b39a39421a2fca8ac661f819316d3898", kill_on_drop: false }`
[INFO] [stdout] f885ed9f3d2f629f0cb65a3f27356d02b39a39421a2fca8ac661f819316d3898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d00f5b4e8b5ebc723d325eaea871122a712733d8f3d80944535f0152c4945a58
[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" "d00f5b4e8b5ebc723d325eaea871122a712733d8f3d80944535f0152c4945a58", kill_on_drop: false }`
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[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 56s
[INFO] running `Command { std: "docker" "inspect" "d00f5b4e8b5ebc723d325eaea871122a712733d8f3d80944535f0152c4945a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00f5b4e8b5ebc723d325eaea871122a712733d8f3d80944535f0152c4945a58", kill_on_drop: false }`
[INFO] [stdout] d00f5b4e8b5ebc723d325eaea871122a712733d8f3d80944535f0152c4945a58