[INFO] fetching crate specs 0.16.1...
[INFO] documenting specs-0.16.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate specs 0.16.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate specs 0.16.1 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 specs 0.16.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate specs 0.16.1
[INFO] tweaked toml for crates.io crate specs 0.16.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate specs 0.16.1 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 98d517436837394a86bee9ae812c7b9822d03d29ff048387bd3e178830007be0
[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" "98d517436837394a86bee9ae812c7b9822d03d29ff048387bd3e178830007be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98d517436837394a86bee9ae812c7b9822d03d29ff048387bd3e178830007be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98d517436837394a86bee9ae812c7b9822d03d29ff048387bd3e178830007be0", kill_on_drop: false }`
[INFO] [stdout] 98d517436837394a86bee9ae812c7b9822d03d29ff048387bd3e178830007be0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1b470bc08485e2dab1e23f540bcc0a581d55458014e175e74f35d2d247db8881
[INFO] running `Command { std: "docker" "start" "-a" "1b470bc08485e2dab1e23f540bcc0a581d55458014e175e74f35d2d247db8881", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling nom v5.1.0
[INFO] [stderr]    Compiling hashbrown v0.7.0
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking tynm v0.1.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling shred-derive v0.6.2
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.2
[INFO] [stderr]     Checking shred v0.10.2
[INFO] [stderr]  Documenting specs v0.16.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.56s
[INFO] running `Command { std: "docker" "inspect" "1b470bc08485e2dab1e23f540bcc0a581d55458014e175e74f35d2d247db8881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b470bc08485e2dab1e23f540bcc0a581d55458014e175e74f35d2d247db8881", kill_on_drop: false }`
[INFO] [stdout] 1b470bc08485e2dab1e23f540bcc0a581d55458014e175e74f35d2d247db8881