[INFO] fetching crate netidx 0.7.0...
[INFO] checking netidx-0.7.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate netidx 0.7.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate netidx 0.7.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netidx 0.7.0
[INFO] finished tweaking crates.io crate netidx 0.7.0
[INFO] tweaked toml for crates.io crate netidx 0.7.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 762b0e96e26c6075e9f8d21be324f3e8362af46ee9c9f6ad7e6369a9a0ce2ab6
[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" "762b0e96e26c6075e9f8d21be324f3e8362af46ee9c9f6ad7e6369a9a0ce2ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "762b0e96e26c6075e9f8d21be324f3e8362af46ee9c9f6ad7e6369a9a0ce2ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762b0e96e26c6075e9f8d21be324f3e8362af46ee9c9f6ad7e6369a9a0ce2ab6", kill_on_drop: false }`
[INFO] [stdout] 762b0e96e26c6075e9f8d21be324f3e8362af46ee9c9f6ad7e6369a9a0ce2ab6
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 754f199f4dafe23ba25f04478c51fc8d5d65f61cc791a0948061a9c702d54487
[INFO] running `Command { std: "docker" "start" "-a" "754f199f4dafe23ba25f04478c51fc8d5d65f61cc791a0948061a9c702d54487", kill_on_drop: false }`
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling packed_struct v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking netidx-core v0.7.0
[INFO] [stderr]     Checking netidx-netproto v0.7.0
[INFO] [stderr]    Compiling packed_struct_codegen v0.3.1
[INFO] [stderr]     Checking immutable-chunkmap v0.5.9
[INFO] [stderr]    Compiling libgssapi-sys v0.2.3
[INFO] [stderr]     Checking libgssapi v0.4.5
[INFO] [stderr]     Checking netidx v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "754f199f4dafe23ba25f04478c51fc8d5d65f61cc791a0948061a9c702d54487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754f199f4dafe23ba25f04478c51fc8d5d65f61cc791a0948061a9c702d54487", kill_on_drop: false }`
[INFO] [stdout] 754f199f4dafe23ba25f04478c51fc8d5d65f61cc791a0948061a9c702d54487