[INFO] fetching crate serde08 0.8.0...
[INFO] checking serde08-0.8.0 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] extracting crate serde08 0.8.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde08 0.8.0 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde08 0.8.0
[INFO] finished tweaking crates.io crate serde08 0.8.0
[INFO] tweaked toml for crates.io crate serde08 0.8.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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] 3ee43113b6e5b7833f670a8eccf7d355564d0561c2c5d323289399e9097ea6ae
[INFO] running `Command { std: "docker" "start" "-a" "3ee43113b6e5b7833f670a8eccf7d355564d0561c2c5d323289399e9097ea6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ee43113b6e5b7833f670a8eccf7d355564d0561c2c5d323289399e9097ea6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ee43113b6e5b7833f670a8eccf7d355564d0561c2c5d323289399e9097ea6ae", kill_on_drop: false }`
[INFO] [stdout] 3ee43113b6e5b7833f670a8eccf7d355564d0561c2c5d323289399e9097ea6ae
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fa341bf32aab4327cc7fa54e7d5e3b7d4d56a01b567b4de53f3f6afd3d09644
[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" "4fa341bf32aab4327cc7fa54e7d5e3b7d4d56a01b567b4de53f3f6afd3d09644", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking serde08 v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `Command { std: "docker" "inspect" "4fa341bf32aab4327cc7fa54e7d5e3b7d4d56a01b567b4de53f3f6afd3d09644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fa341bf32aab4327cc7fa54e7d5e3b7d4d56a01b567b4de53f3f6afd3d09644", kill_on_drop: false }`
[INFO] [stdout] 4fa341bf32aab4327cc7fa54e7d5e3b7d4d56a01b567b4de53f3f6afd3d09644