[INFO] fetching crate ciruela 0.6.12...
[INFO] documenting ciruela-0.6.12 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate ciruela 0.6.12 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ciruela 0.6.12 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ciruela 0.6.12
[INFO] finished tweaking crates.io crate ciruela 0.6.12
[INFO] tweaked toml for crates.io crate ciruela 0.6.12 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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" "+1.46.0" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f948002a137e612f9eed5396a06745c810425fc1a0233f16de676b35a95aabe2
[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" "f948002a137e612f9eed5396a06745c810425fc1a0233f16de676b35a95aabe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f948002a137e612f9eed5396a06745c810425fc1a0233f16de676b35a95aabe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f948002a137e612f9eed5396a06745c810425fc1a0233f16de676b35a95aabe2", kill_on_drop: false }`
[INFO] [stdout] f948002a137e612f9eed5396a06745c810425fc1a0233f16de676b35a95aabe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3c54a67134ad481ed50f9c7398612e516b271ad204460653a13c97356f3651d
[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" "e3c54a67134ad481ed50f9c7398612e516b271ad204460653a13c97356f3651d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking netbuf v0.4.1
[INFO] [stderr]     Checking sha1 v0.4.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking atomic v0.3.4
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking atomic v0.4.6
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking async-slot v0.1.0
[INFO] [stderr]     Checking valuable_futures v0.1.1
[INFO] [stderr]     Checking scan_dir v0.3.3
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking openat v0.1.19
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking abstract-ns v0.4.3
[INFO] [stderr]     Checking ssh-keys v0.1.4
[INFO] [stderr]     Checking humannum v0.1.0
[INFO] [stderr]     Checking digest-writer v0.3.1
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking blake2 v0.7.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking tk-bufstream v0.3.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tk-listen v0.1.1
[INFO] [stderr]     Checking tk-easyloop v0.1.1
[INFO] [stderr]     Checking tk-http v0.3.9
[INFO] [stderr]     Checking ns-std-threaded v0.3.0
[INFO] [stderr]     Checking tk-pool v0.5.3
[INFO] [stderr]     Checking ns-router v0.1.6
[INFO] [stderr]     Checking dir-signature v0.2.9
[INFO] [stderr]     Checking ns-env-config v0.1.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_millis v0.1.1
[INFO] [stderr]     Checking self-meter v0.6.0
[INFO] [stderr]     Checking quire v0.4.1
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking serde_cbor v0.8.2
[INFO] [stderr]     Checking serde-humantime v0.1.1
[INFO] [stderr]     Checking tk-cantal v0.3.2
[INFO] [stderr]     Checking libcantal v0.3.2
[INFO] [stderr]     Checking self-meter-http v0.4.1
[INFO] [stderr]  Documenting ciruela v0.6.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.56s
[INFO] running `Command { std: "docker" "inspect" "e3c54a67134ad481ed50f9c7398612e516b271ad204460653a13c97356f3651d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c54a67134ad481ed50f9c7398612e516b271ad204460653a13c97356f3651d", kill_on_drop: false }`
[INFO] [stdout] e3c54a67134ad481ed50f9c7398612e516b271ad204460653a13c97356f3651d