[INFO] fetching crate tabout 0.3.0...
[INFO] documenting tabout-0.3.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate tabout 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tabout 0.3.0 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 tabout 0.3.0
[INFO] finished tweaking crates.io crate tabout 0.3.0
[INFO] tweaked toml for crates.io crate tabout 0.3.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 28417ccd1d148b9c53779c1a526092332cbfa927bc05c2e3ae47e2f5dedc3058
[INFO] running `Command { std: "docker" "start" "-a" "28417ccd1d148b9c53779c1a526092332cbfa927bc05c2e3ae47e2f5dedc3058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28417ccd1d148b9c53779c1a526092332cbfa927bc05c2e3ae47e2f5dedc3058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28417ccd1d148b9c53779c1a526092332cbfa927bc05c2e3ae47e2f5dedc3058", kill_on_drop: false }`
[INFO] [stdout] 28417ccd1d148b9c53779c1a526092332cbfa927bc05c2e3ae47e2f5dedc3058
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 2ce4ce44978d2a96e35e66c04c0188062e30d36827d3cb2951266af193c9d17a
[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" "2ce4ce44978d2a96e35e66c04c0188062e30d36827d3cb2951266af193c9d17a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking memmem v0.1.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking vtparse v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking filedescriptor v0.7.1
[INFO] [stderr] error: could not compile `vtparse`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name vtparse --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/vtparse-0.2.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -Cembed-bitcode=no -C debuginfo=2 -C metadata=c49e42e1e4164e27 -C extra-filename=-c49e42e1e4164e27 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern utf8parse=/opt/rustwide/target/debug/deps/libutf8parse-f08819de195c5deb.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2ce4ce44978d2a96e35e66c04c0188062e30d36827d3cb2951266af193c9d17a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce4ce44978d2a96e35e66c04c0188062e30d36827d3cb2951266af193c9d17a", kill_on_drop: false }`
[INFO] [stdout] 2ce4ce44978d2a96e35e66c04c0188062e30d36827d3cb2951266af193c9d17a