[INFO] fetching crate buildkit-proto 0.2.0...
[INFO] documenting buildkit-proto-0.2.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate buildkit-proto 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate buildkit-proto 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buildkit-proto 0.2.0
[INFO] finished tweaking crates.io crate buildkit-proto 0.2.0
[INFO] tweaked toml for crates.io crate buildkit-proto 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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" "+1.47.0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66ac7c548cd9e79c14f1cffbe3f80836a96518d39ab3a7084142e130e8e3ab26
[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" "66ac7c548cd9e79c14f1cffbe3f80836a96518d39ab3a7084142e130e8e3ab26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66ac7c548cd9e79c14f1cffbe3f80836a96518d39ab3a7084142e130e8e3ab26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66ac7c548cd9e79c14f1cffbe3f80836a96518d39ab3a7084142e130e8e3ab26", kill_on_drop: false }`
[INFO] [stdout] 66ac7c548cd9e79c14f1cffbe3f80836a96518d39ab3a7084142e130e8e3ab26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "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] 2c929c11faa8c0d975f33d69e8cabbc58edc16fef28b6375e7d1d3cd2f71a760
[INFO] running `Command { std: "docker" "start" "-a" "2c929c11faa8c0d975f33d69e8cabbc58edc16fef28b6375e7d1d3cd2f71a760", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tower-make v0.3.0
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking tower-discover v0.3.0
[INFO] [stderr]     Checking tower-retry v0.3.0
[INFO] [stderr]     Checking tower-buffer v0.3.0
[INFO] [stderr]     Checking tower-timeout v0.3.0
[INFO] [stderr]     Checking tower-load-shed v0.3.0
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking tower-load v0.3.0
[INFO] [stderr]     Checking tower-limit v0.3.1
[INFO] [stderr]     Checking prost-types v0.6.1
[INFO] [stderr]     Checking tower-ready-cache v0.3.1
[INFO] [stderr]     Checking tower-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking tower-balance v0.3.0
[INFO] [stderr]    Compiling tonic-build v0.1.1
[INFO] [stderr]     Checking tower v0.3.1
[INFO] [stderr]    Compiling buildkit-proto v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking tonic v0.1.1
[INFO] [stderr]  Documenting buildkit-proto v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "2c929c11faa8c0d975f33d69e8cabbc58edc16fef28b6375e7d1d3cd2f71a760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c929c11faa8c0d975f33d69e8cabbc58edc16fef28b6375e7d1d3cd2f71a760", kill_on_drop: false }`
[INFO] [stdout] 2c929c11faa8c0d975f33d69e8cabbc58edc16fef28b6375e7d1d3cd2f71a760
