[INFO] fetching crate dargo 0.0.6...
[INFO] checking dargo-0.0.6 against beta for pr-78714
[INFO] extracting crate dargo 0.0.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dargo 0.0.6 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dargo 0.0.6
[INFO] finished tweaking crates.io crate dargo 0.0.6
[INFO] tweaked toml for crates.io crate dargo 0.0.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta" "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] af5bb1071e9183a341f4bee343523495e38d724bbd775ba78eb09f933cc611a3
[INFO] running `Command { std: "docker" "start" "-a" "af5bb1071e9183a341f4bee343523495e38d724bbd775ba78eb09f933cc611a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af5bb1071e9183a341f4bee343523495e38d724bbd775ba78eb09f933cc611a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af5bb1071e9183a341f4bee343523495e38d724bbd775ba78eb09f933cc611a3", kill_on_drop: false }`
[INFO] [stdout] af5bb1071e9183a341f4bee343523495e38d724bbd775ba78eb09f933cc611a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87b1c08394afa2e02e3dc0d24416a183f5485891039ff21d1cd4aa883f515555
[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" "87b1c08394afa2e02e3dc0d24416a183f5485891039ff21d1cd4aa883f515555", kill_on_drop: false }`
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking shell-escape v0.1.5
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking home v0.3.4
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking jobserver v0.1.21
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking libz-sys v1.1.2
[INFO] [stderr]     Checking sized-chunks v0.1.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking opener v0.3.2
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking flexi_logger v0.13.4
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_ignored v0.0.4
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking toml_edit v0.1.5
[INFO] [stderr]    Compiling im-rc v12.3.4
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Checking crates-io v0.24.0
[INFO] [stderr]     Checking git2 v0.8.0
[INFO] [stderr]     Checking git2-curl v0.9.0
[INFO] [stderr]     Checking cargo v0.36.0
[INFO] [stderr]     Checking dargo v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 57s
[INFO] running `Command { std: "docker" "inspect" "87b1c08394afa2e02e3dc0d24416a183f5485891039ff21d1cd4aa883f515555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b1c08394afa2e02e3dc0d24416a183f5485891039ff21d1cd4aa883f515555", kill_on_drop: false }`
[INFO] [stdout] 87b1c08394afa2e02e3dc0d24416a183f5485891039ff21d1cd4aa883f515555