[INFO] fetching crate sourcemap 6.0.1...
[INFO] documenting sourcemap-6.0.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate sourcemap 6.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate sourcemap 6.0.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sourcemap 6.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate sourcemap 6.0.1
[INFO] tweaked toml for crates.io crate sourcemap 6.0.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate sourcemap 6.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48b923d7d46e95a64835ad71fdc429d3f996b00c86a01ff0c2c1ebaba8275bd9
[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" "48b923d7d46e95a64835ad71fdc429d3f996b00c86a01ff0c2c1ebaba8275bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48b923d7d46e95a64835ad71fdc429d3f996b00c86a01ff0c2c1ebaba8275bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b923d7d46e95a64835ad71fdc429d3f996b00c86a01ff0c2c1ebaba8275bd9", kill_on_drop: false }`
[INFO] [stdout] 48b923d7d46e95a64835ad71fdc429d3f996b00c86a01ff0c2c1ebaba8275bd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a39829f08ee31290fb1b0553fc2008f0be08c2604d37fb6854407fca12673c4
[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" "6a39829f08ee31290fb1b0553fc2008f0be08c2604d37fb6854407fca12673c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]  Documenting sourcemap v6.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.22s
[INFO] running `Command { std: "docker" "inspect" "6a39829f08ee31290fb1b0553fc2008f0be08c2604d37fb6854407fca12673c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a39829f08ee31290fb1b0553fc2008f0be08c2604d37fb6854407fca12673c4", kill_on_drop: false }`
[INFO] [stdout] 6a39829f08ee31290fb1b0553fc2008f0be08c2604d37fb6854407fca12673c4