[INFO] fetching crate gluon_vm 0.17.1...
[INFO] documenting gluon_vm-0.17.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate gluon_vm 0.17.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate gluon_vm 0.17.1 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 gluon_vm 0.17.1
[INFO] finished tweaking crates.io crate gluon_vm 0.17.1
[INFO] tweaked toml for crates.io crate gluon_vm 0.17.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typed-arena v2.0.1
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded pretty v0.10.0
[INFO] [stderr]   Downloaded lalrpop-util v0.19.0
[INFO] [stderr]   Downloaded ordered-float v2.0.0
[INFO] [stderr]   Downloaded frunk_core v0.3.1
[INFO] [stderr]   Downloaded rpds v0.7.0
[INFO] [stderr]   Downloaded codespan-reporting v0.9.5
[INFO] [stderr]   Downloaded gluon_vm v0.17.1
[INFO] [stderr]   Downloaded collect-mac v0.1.0
[INFO] [stderr]   Downloaded gluon_parser v0.17.1
[INFO] [stderr]   Downloaded lalrpop v0.19.0
[INFO] [stderr]   Downloaded archery v0.3.0
[INFO] [stderr]   Downloaded codespan v0.9.5
[INFO] [stderr]   Downloaded gluon_base v0.17.1
[INFO] [stderr]   Downloaded serde_derive_state v0.4.9
[INFO] [stderr]   Downloaded gluon-salsa-macros v0.15.2
[INFO] [stderr]   Downloaded gluon_codegen v0.17.1
[INFO] [stderr]   Downloaded gluon_format v0.17.1
[INFO] [stderr]   Downloaded gluon_check v0.17.1
[INFO] [stderr]   Downloaded serde_state v0.4.7
[INFO] [stderr]   Downloaded gluon v0.17.1
[INFO] [stderr]   Downloaded gluon-salsa v0.15.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] a31189743aefefece523c2f5fa46c0f39d1d145d301bd9005c8c58800dba90f4
[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" "a31189743aefefece523c2f5fa46c0f39d1d145d301bd9005c8c58800dba90f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a31189743aefefece523c2f5fa46c0f39d1d145d301bd9005c8c58800dba90f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a31189743aefefece523c2f5fa46c0f39d1d145d301bd9005c8c58800dba90f4", kill_on_drop: false }`
[INFO] [stdout] a31189743aefefece523c2f5fa46c0f39d1d145d301bd9005c8c58800dba90f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 4151e14874c25d283b85323fa10a1538a6b718921c5f04594aca9c9643981e20
[INFO] running `Command { std: "docker" "start" "-a" "4151e14874c25d283b85323fa10a1538a6b718921c5f04594aca9c9643981e20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]    Compiling gluon_vm v0.17.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking frunk_core v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking archery v0.3.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]    Compiling gluon_codegen v0.17.1
[INFO] [stderr]     Checking ordered-float v2.0.0
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking rpds v0.7.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking indexmap v1.5.2
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking gluon_base v0.17.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking gluon_check v0.17.1
[INFO] [stderr]  Documenting gluon_vm v0.17.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.29s
[INFO] running `Command { std: "docker" "inspect" "4151e14874c25d283b85323fa10a1538a6b718921c5f04594aca9c9643981e20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4151e14874c25d283b85323fa10a1538a6b718921c5f04594aca9c9643981e20", kill_on_drop: false }`
[INFO] [stdout] 4151e14874c25d283b85323fa10a1538a6b718921c5f04594aca9c9643981e20