[INFO] cloning repository https://github.com/dmix/portal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmix/portal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmix%2Fportal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmix%2Fportal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efcb1bb554548b5a44281349f615982d003d9398
[INFO] documenting dmix/portal against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmix%2Fportal" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmix/portal 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 git repo https://github.com/dmix/portal
[INFO] finished tweaking git repo https://github.com/dmix/portal
[INFO] tweaked toml for git repo https://github.com/dmix/portal written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dmix/portal 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded variance v0.1.3
[INFO] [stderr]   Downloaded scoped-pool v1.0.0
[INFO] [stderr]   Downloaded parking_lot_core v0.6.1
[INFO] [stderr]   Downloaded census v0.2.0
[INFO] [stderr]   Downloaded secrecy v0.2.2
[INFO] [stderr]   Downloaded snap v0.2.5
[INFO] [stderr]   Downloaded tantivy-fst v0.1.0
[INFO] [stderr]   Downloaded fst v0.3.3
[INFO] [stderr]   Downloaded gumdrop_derive v0.6.0
[INFO] [stderr]   Downloaded atomicwrites v0.2.3
[INFO] [stderr]   Downloaded once_cell v0.2.3
[INFO] [stderr]   Downloaded zeroize v0.9.2
[INFO] [stderr]   Downloaded canonical-path v2.0.2
[INFO] [stderr]   Downloaded abscissa_core v0.2.0
[INFO] [stderr]   Downloaded owned-read v0.4.0
[INFO] [stderr]   Downloaded tantivy v0.10.0
[INFO] [stderr]   Downloaded scopeguard v0.1.2
[INFO] [stderr]   Downloaded ascii v0.9.2
[INFO] [stderr]   Downloaded abscissa_derive v0.2.0
[INFO] [stderr]   Downloaded gumdrop v0.6.0
[INFO] [stderr]   Downloaded bitpacking v0.8.0
[INFO] [stderr]   Downloaded fail v0.2.1
[INFO] [stderr]   Downloaded rust-stemmers v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 938379c8b03272c4c454476fe94de421e2eff3fd094a82a45c65a822f7efceb1
[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" "938379c8b03272c4c454476fe94de421e2eff3fd094a82a45c65a822f7efceb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "938379c8b03272c4c454476fe94de421e2eff3fd094a82a45c65a822f7efceb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "938379c8b03272c4c454476fe94de421e2eff3fd094a82a45c65a822f7efceb1", kill_on_drop: false }`
[INFO] [stdout] 938379c8b03272c4c454476fe94de421e2eff3fd094a82a45c65a822f7efceb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 51e9228e71b31062674a7a612a55759274f23f5579277b327514e3b910d96f57
[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" "51e9228e71b31062674a7a612a55759274f23f5579277b327514e3b910d96f57", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking variance v0.1.3
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[INFO] [stderr]     Checking scopeguard v0.1.2
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[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking ascii v0.9.2
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]     Checking census v0.2.0
[INFO] [stderr]     Checking canonical-path v2.0.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]     Checking itertools v0.8.0
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[INFO] [stderr]     Checking c2-chacha v0.2.2
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[INFO] [stderr]    Compiling heck v0.3.1
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[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking murmurhash32 v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking combine v3.8.1
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[INFO] [stderr]     Checking log v0.3.9
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[INFO] [stderr]     Checking inotify v0.6.1
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[INFO] [stderr]     Checking fail v0.2.1
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[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking tantivy-fst v0.1.0
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking notify v4.0.12
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking atomicwrites v0.2.3
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling rental-impl v0.5.4
[INFO] [stderr]    Compiling gumdrop_derive v0.6.0
[INFO] [stderr]    Compiling abscissa_derive v0.2.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking gumdrop v0.6.0
[INFO] [stderr]     Checking rental v0.5.4
[INFO] [stderr]     Checking owned-read v0.4.0
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking secrecy v0.2.2
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking rust-stemmers v1.1.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.1
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking abscissa_core v0.2.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking once_cell v0.2.3
[INFO] [stderr]     Checking crossbeam v0.5.0
[INFO] [stderr]     Checking tantivy v0.10.0
[INFO] [stderr]  Documenting portal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/dir.rs:58:44
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn open_z(filename: &String) -> Result<(String), Box<dyn Error>> {
[INFO] [stdout]    |                                            ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 12s
[INFO] running `Command { std: "docker" "inspect" "51e9228e71b31062674a7a612a55759274f23f5579277b327514e3b910d96f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51e9228e71b31062674a7a612a55759274f23f5579277b327514e3b910d96f57", kill_on_drop: false }`
[INFO] [stdout] 51e9228e71b31062674a7a612a55759274f23f5579277b327514e3b910d96f57