[INFO] fetching crate chalk-engine 0.24.0...
[INFO] documenting chalk-engine-0.24.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate chalk-engine 0.24.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate chalk-engine 0.24.0 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 chalk-engine 0.24.0
[INFO] finished tweaking crates.io crate chalk-engine 0.24.0
[INFO] tweaked toml for crates.io crate chalk-engine 0.24.0 written to /workspace/builds/worker-0/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ef48710c95f62dfd39743dc0db0c706683c3c3be7c2841e0d521dd9a816d4688
[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" "ef48710c95f62dfd39743dc0db0c706683c3c3be7c2841e0d521dd9a816d4688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef48710c95f62dfd39743dc0db0c706683c3c3be7c2841e0d521dd9a816d4688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef48710c95f62dfd39743dc0db0c706683c3c3be7c2841e0d521dd9a816d4688", kill_on_drop: false }`
[INFO] [stdout] ef48710c95f62dfd39743dc0db0c706683c3c3be7c2841e0d521dd9a816d4688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] fb879cc64a653fa48d569fccac98364e24c36dab15618b790903c18abb77fb35
[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" "fb879cc64a653fa48d569fccac98364e24c36dab15618b790903c18abb77fb35", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing-core v0.1.15
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling chalk-derive v0.24.0
[INFO] [stderr]     Checking tracing-serde v0.1.1
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.11
[INFO] [stderr]     Checking chalk-ir v0.24.0
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking tracing-tree v0.1.5
[INFO] [stderr]     Checking chalk-solve v0.24.0
[INFO] [stderr]  Documenting chalk-engine v0.24.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.53s
[INFO] running `Command { std: "docker" "inspect" "fb879cc64a653fa48d569fccac98364e24c36dab15618b790903c18abb77fb35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb879cc64a653fa48d569fccac98364e24c36dab15618b790903c18abb77fb35", kill_on_drop: false }`
[INFO] [stdout] fb879cc64a653fa48d569fccac98364e24c36dab15618b790903c18abb77fb35