[INFO] fetching crate task_cli 0.2.0...
[INFO] documenting task_cli-0.2.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate task_cli 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate task_cli 0.2.0 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 task_cli 0.2.0
[INFO] finished tweaking crates.io crate task_cli 0.2.0
[INFO] tweaked toml for crates.io crate task_cli 0.2.0 written to /workspace/builds/worker-6/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-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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5ddfd09677b80cf109e98e9cb5ff26f1508e55a681d9ec70059a81d3d6b4c5f
[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" "d5ddfd09677b80cf109e98e9cb5ff26f1508e55a681d9ec70059a81d3d6b4c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5ddfd09677b80cf109e98e9cb5ff26f1508e55a681d9ec70059a81d3d6b4c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5ddfd09677b80cf109e98e9cb5ff26f1508e55a681d9ec70059a81d3d6b4c5f", kill_on_drop: false }`
[INFO] [stdout] d5ddfd09677b80cf109e98e9cb5ff26f1508e55a681d9ec70059a81d3d6b4c5f
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b416375f2715a51b452f49f7f32b91467c07dfaeced5a378dab34f38334acfd0
[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" "b416375f2715a51b452f49f7f32b91467c07dfaeced5a378dab34f38334acfd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libsqlite3-sys v0.11.1
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking rusqlite v0.16.0
[INFO] [stderr]     Checking bson v0.13.0
[INFO] [stderr]     Checking taskforge v0.2.0
[INFO] [stderr]     Checking task_cli v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting task_cli v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:83:31
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn list(&self) -> Box<List> {
[INFO] [stdout]    |                               ^^^^ help: use `dyn`: `dyn List`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `task_cli`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name task_cli src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-ff5a6a173801b503.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-1764db5c792e453a.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-7e64f6dca7ea7b5c.rmeta --extern docopt=/opt/rustwide/target/debug/deps/libdocopt-27df371941d99726.rmeta --extern open=/opt/rustwide/target/debug/deps/libopen-b6a76bfdc3a7dd16.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-de526c2f95fb2c08.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-9657277a275bd2e8.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-11293de170673647.rmeta --extern tabwriter=/opt/rustwide/target/debug/deps/libtabwriter-aab171550c6d164a.rmeta --extern taskforge=/opt/rustwide/target/debug/deps/libtaskforge-fed2cc513b49f622.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-acf8ecb6f63fff47.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-3767952731a94672.rmeta --cap-lints=warn` (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" "b416375f2715a51b452f49f7f32b91467c07dfaeced5a378dab34f38334acfd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b416375f2715a51b452f49f7f32b91467c07dfaeced5a378dab34f38334acfd0", kill_on_drop: false }`
[INFO] [stdout] b416375f2715a51b452f49f7f32b91467c07dfaeced5a378dab34f38334acfd0