[INFO] fetching crate vergen 3.1.0...
[INFO] checking vergen-3.1.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate vergen 3.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate vergen 3.1.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vergen 3.1.0
[INFO] finished tweaking crates.io crate vergen 3.1.0
[INFO] tweaked toml for crates.io crate vergen 3.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "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] 50698ed5f0c8721d3be3b6a4ff76fbff086f9625eb47ccd831f114d2392cb569
[INFO] running `Command { std: "docker" "start" "-a" "50698ed5f0c8721d3be3b6a4ff76fbff086f9625eb47ccd831f114d2392cb569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50698ed5f0c8721d3be3b6a4ff76fbff086f9625eb47ccd831f114d2392cb569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50698ed5f0c8721d3be3b6a4ff76fbff086f9625eb47ccd831f114d2392cb569", kill_on_drop: false }`
[INFO] [stdout] 50698ed5f0c8721d3be3b6a4ff76fbff086f9625eb47ccd831f114d2392cb569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47c3dc0e5e041ba557d6b237f7d8d093a58e4f67ae201f6dce64188bd70d89a5
[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" "47c3dc0e5e041ba557d6b237f7d8d093a58e4f67ae201f6dce64188bd70d89a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling vergen v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.12s
[INFO] running `Command { std: "docker" "inspect" "47c3dc0e5e041ba557d6b237f7d8d093a58e4f67ae201f6dce64188bd70d89a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c3dc0e5e041ba557d6b237f7d8d093a58e4f67ae201f6dce64188bd70d89a5", kill_on_drop: false }`
[INFO] [stdout] 47c3dc0e5e041ba557d6b237f7d8d093a58e4f67ae201f6dce64188bd70d89a5