[INFO] fetching crate tdb_server_core 0.5.1...
[INFO] checking tdb_server_core-0.5.1 against beta for pr-78714
[INFO] extracting crate tdb_server_core 0.5.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tdb_server_core 0.5.1 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 tdb_server_core 0.5.1
[INFO] finished tweaking crates.io crate tdb_server_core 0.5.1
[INFO] tweaked toml for crates.io crate tdb_server_core 0.5.1 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] [stderr]     Blocking waiting for file lock on package cache
[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] [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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 721b2d4f2a29518e601ddc95b6d91ab8890c74cc3c132ca77c56f0c5e991b499
[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" "721b2d4f2a29518e601ddc95b6d91ab8890c74cc3c132ca77c56f0c5e991b499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "721b2d4f2a29518e601ddc95b6d91ab8890c74cc3c132ca77c56f0c5e991b499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "721b2d4f2a29518e601ddc95b6d91ab8890c74cc3c132ca77c56f0c5e991b499", kill_on_drop: false }`
[INFO] [stdout] 721b2d4f2a29518e601ddc95b6d91ab8890c74cc3c132ca77c56f0c5e991b499
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a86aaddea25604b066312e241311fd14f2a5fe04a5cbd6b6f11f63cb5ab7e20d
[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" "a86aaddea25604b066312e241311fd14f2a5fe04a5cbd6b6f11f63cb5ab7e20d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling circular-queue v0.2.6
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]     Checking libz-sys v1.1.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking tdb_core v0.5.2
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]     Checking surf v1.0.3
[INFO] [stderr]     Checking tdb_server_core v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.25s
[INFO] running `Command { std: "docker" "inspect" "a86aaddea25604b066312e241311fd14f2a5fe04a5cbd6b6f11f63cb5ab7e20d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a86aaddea25604b066312e241311fd14f2a5fe04a5cbd6b6f11f63cb5ab7e20d", kill_on_drop: false }`
[INFO] [stdout] a86aaddea25604b066312e241311fd14f2a5fe04a5cbd6b6f11f63cb5ab7e20d