[INFO] cloning repository https://github.com/rectcircle/actix-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rectcircle/actix-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frectcircle%2Factix-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frectcircle%2Factix-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a63e69b89fb19b616050917de2e8ca664354b4a
[INFO] documenting rectcircle/actix-learn 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%2Frectcircle%2Factix-learn" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rectcircle/actix-learn 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/rectcircle/actix-learn
[INFO] finished tweaking git repo https://github.com/rectcircle/actix-learn
[INFO] tweaked toml for git repo https://github.com/rectcircle/actix-learn written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rectcircle/actix-learn 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 enum-as-inner v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f7c84cbbd338dc44234a12ddf38269e3b20800021fd108ad19776912899deede
[INFO] running `Command { std: "docker" "start" "-a" "f7c84cbbd338dc44234a12ddf38269e3b20800021fd108ad19776912899deede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7c84cbbd338dc44234a12ddf38269e3b20800021fd108ad19776912899deede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c84cbbd338dc44234a12ddf38269e3b20800021fd108ad19776912899deede", kill_on_drop: false }`
[INFO] [stdout] f7c84cbbd338dc44234a12ddf38269e3b20800021fd108ad19776912899deede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 3734bb9dc1caf690665ba23be925fb1c40fba430418240bcae91b1d60424cf9e
[INFO] running `Command { std: "docker" "start" "-a" "3734bb9dc1caf690665ba23be925fb1c40fba430418240bcae91b1d60424cf9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]    Compiling v_htmlescape v0.4.5
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking bytestring v0.1.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.4
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling ring v0.16.11
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking listenfd v0.3.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking r2d2 v0.8.8
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking actix-codec v0.2.0
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling derive_more v0.99.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling actix-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]    Compiling enum-as-inner v0.3.1
[INFO] [stderr]    Compiling actix-web-codegen v0.2.0
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]    Compiling actix_derive v0.5.0
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking v_escape v0.7.4
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking actix-threadpool v0.3.1
[INFO] [stderr]     Checking diesel v1.4.3
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking actix-service v1.0.5
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking actix-rt v1.0.0
[INFO] [stderr]     Checking trust-dns-proto v0.18.0-alpha.2
[INFO] [stderr]     Checking actix-utils v1.0.6
[INFO] [stderr]     Checking actix-server v1.0.1
[INFO] [stderr]     Checking actix-tls v1.0.0
[INFO] [stderr]     Checking actix-testing v1.0.0
[INFO] [stderr]     Checking trust-dns-resolver v0.18.0-alpha.2
[INFO] [stderr]     Checking actix-connect v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking actix-router v0.2.4
[INFO] [stderr]     Checking actix-http v1.0.1
[INFO] [stderr]     Checking awc v1.0.1
[INFO] [stderr]     Checking actix v0.9.0
[INFO] [stderr]     Checking actix-web v2.0.0
[INFO] [stderr]     Checking actix-session v0.3.0
[INFO] [stderr]     Checking actix-files v0.2.1
[INFO] [stderr]     Checking actix-web-actors v2.0.0
[INFO] [stderr]     Checking actix-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting actix-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `actix-learn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name actor_arbiter src/bin/actor_arbiter.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-b491d0463b6ac111.rmeta --extern actix_files=/opt/rustwide/target/debug/deps/libactix_files-d5b0483d66a746f2.rmeta --extern actix_http=/opt/rustwide/target/debug/deps/libactix_http-0c467d912e651aa7.rmeta --extern actix_learn=/opt/rustwide/target/debug/deps/libactix_learn-da613b6001feda5d.rmeta --extern actix_rt=/opt/rustwide/target/debug/deps/libactix_rt-1e4b49ed5c437f6f.rmeta --extern actix_service=/opt/rustwide/target/debug/deps/libactix_service-0060b54c6188661e.rmeta --extern actix_session=/opt/rustwide/target/debug/deps/libactix_session-88f021a96f7e1eda.rmeta --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-17191f8e69cacc9c.rmeta --extern actix_web_actors=/opt/rustwide/target/debug/deps/libactix_web_actors-b7b10bdd8662b0be.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-6ff2779996353b30.rmeta --extern diesel=/opt/rustwide/target/debug/deps/libdiesel-6922ddf60fbc2572.rmeta --extern dotenv=/opt/rustwide/target/debug/deps/libdotenv-ea65719f88f1c8b4.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-e7f3bb2df40c4669.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-97bb85e70fbd85f5.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-e3ba0b4f5175e516.rmeta --extern listenfd=/opt/rustwide/target/debug/deps/liblistenfd-fd7ea5f331ef2271.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-98196b5035fe6ff4.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-d3841ca91152db55.rmeta --cap-lints=warn --crate-version 0.1.0` (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" "3734bb9dc1caf690665ba23be925fb1c40fba430418240bcae91b1d60424cf9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3734bb9dc1caf690665ba23be925fb1c40fba430418240bcae91b1d60424cf9e", kill_on_drop: false }`
[INFO] [stdout] 3734bb9dc1caf690665ba23be925fb1c40fba430418240bcae91b1d60424cf9e