[INFO] fetching crate tower-spawn-ready 0.3.0...
[INFO] documenting tower-spawn-ready-0.3.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate tower-spawn-ready 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tower-spawn-ready 0.3.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-spawn-ready 0.3.0
[INFO] finished tweaking crates.io crate tower-spawn-ready 0.3.0
[INFO] tweaked toml for crates.io crate tower-spawn-ready 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa1e11ea74d33c7c9352f495c75186283d8daf1d1d20f298222982f11e6ffe3b
[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" "fa1e11ea74d33c7c9352f495c75186283d8daf1d1d20f298222982f11e6ffe3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa1e11ea74d33c7c9352f495c75186283d8daf1d1d20f298222982f11e6ffe3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1e11ea74d33c7c9352f495c75186283d8daf1d1d20f298222982f11e6ffe3b", kill_on_drop: false }`
[INFO] [stdout] fa1e11ea74d33c7c9352f495c75186283d8daf1d1d20f298222982f11e6ffe3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 10e074e1a85d1c870acb2c443bd10ad02a94ed2a7534f574cbd19943952be171
[INFO] running `Command { std: "docker" "start" "-a" "10e074e1a85d1c870acb2c443bd10ad02a94ed2a7534f574cbd19943952be171", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]  Documenting tower-spawn-ready v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.78s
[INFO] running `Command { std: "docker" "inspect" "10e074e1a85d1c870acb2c443bd10ad02a94ed2a7534f574cbd19943952be171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10e074e1a85d1c870acb2c443bd10ad02a94ed2a7534f574cbd19943952be171", kill_on_drop: false }`
[INFO] [stdout] 10e074e1a85d1c870acb2c443bd10ad02a94ed2a7534f574cbd19943952be171
