[INFO] fetching crate actors-rs 0.1.4...
[INFO] documenting actors-rs-0.1.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate actors-rs 0.1.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate actors-rs 0.1.4 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 actors-rs 0.1.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate actors-rs 0.1.4
[INFO] tweaked toml for crates.io crate actors-rs 0.1.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate actors-rs 0.1.4 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog-stdlog v4.0.0
[INFO] [stderr]   Downloaded actors-macros v0.1.1
[INFO] [stderr]   Downloaded riker-testkit v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] c8f27fa1e025cce3908ee7ff7601e707ad7571efcc83cb014f36033a8e1dad27
[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" "c8f27fa1e025cce3908ee7ff7601e707ad7571efcc83cb014f36033a8e1dad27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8f27fa1e025cce3908ee7ff7601e707ad7571efcc83cb014f36033a8e1dad27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f27fa1e025cce3908ee7ff7601e707ad7571efcc83cb014f36033a8e1dad27", kill_on_drop: false }`
[INFO] [stdout] c8f27fa1e025cce3908ee7ff7601e707ad7571efcc83cb014f36033a8e1dad27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] e2b659995c8350bd3ad26503ae1cfeb4c916bdf5b58164e00e0dbd1d47e8e37f
[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" "e2b659995c8350bd3ad26503ae1cfeb4c916bdf5b58164e00e0dbd1d47e8e37f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling syn v1.0.17
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[INFO] [stderr]     Checking serde v0.8.23
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]    Compiling tempdir v0.3.7
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[INFO] [stderr]     Checking serde_test v0.8.23
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[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling actors-macros v0.1.1
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling actors-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting actors-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/actor/selection.rs:102:58
[INFO] [stdout]     |
[INFO] [stdout] 102 |                     let child = anchor.children().filter({ |c| c.name() == name }).last();
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/actor/selection.rs:162:58
[INFO] [stdout]     |
[INFO] [stdout] 162 |                     let child = anchor.children().filter({ |c| c.name() == name }).last();
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `Command { std: "docker" "inspect" "e2b659995c8350bd3ad26503ae1cfeb4c916bdf5b58164e00e0dbd1d47e8e37f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b659995c8350bd3ad26503ae1cfeb4c916bdf5b58164e00e0dbd1d47e8e37f", kill_on_drop: false }`
[INFO] [stdout] e2b659995c8350bd3ad26503ae1cfeb4c916bdf5b58164e00e0dbd1d47e8e37f