[INFO] cloning repository https://github.com/Leonti/rust-socket-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Leonti/rust-socket-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeonti%2Frust-socket-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeonti%2Frust-socket-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fa0e7016aff899624955b07f456c2ab7c53ae15
[INFO] documenting Leonti/rust-socket-server 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%2FLeonti%2Frust-socket-server" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Leonti/rust-socket-server 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/Leonti/rust-socket-server
[INFO] finished tweaking git repo https://github.com/Leonti/rust-socket-server
[INFO] tweaked toml for git repo https://github.com/Leonti/rust-socket-server written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Leonti/rust-socket-server 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 opaque-debug v0.2.1
[INFO] [stderr]   Downloaded mcp3008 v1.0.0
[INFO] [stderr]   Downloaded winapi-util v0.1.1
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded memchr v2.1.1
[INFO] [stderr]   Downloaded ucd-util v0.1.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.3
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded walkdir v2.2.6
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.0
[INFO] [stderr]   Downloaded regex v1.0.6
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.3
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded tokio-tungstenite v0.6.0
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.8
[INFO] [stderr]   Downloaded tokio-timer v0.2.7
[INFO] [stderr]   Downloaded tokio-uds v0.2.3
[INFO] [stderr]   Downloaded tokio v0.1.11
[INFO] [stderr]   Downloaded tokio-dns-unofficial v0.3.1
[INFO] [stderr]   Downloaded lock_api v0.1.4
[INFO] [stderr]   Downloaded tokio-reactor v0.1.6
[INFO] [stderr]   Downloaded base64 v0.10.0
[INFO] [stderr]   Downloaded byte-tools v0.3.0
[INFO] [stderr]   Downloaded utf-8 v0.7.4
[INFO] [stderr]   Downloaded cargo_metadata v0.5.8
[INFO] [stderr]   Downloaded spidev v0.3.0
[INFO] [stderr]   Downloaded block-padding v0.1.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.21
[INFO] [stderr]   Downloaded syn v0.15.18
[INFO] [stderr]   Downloaded i2cdev v0.3.2
[INFO] [stderr]   Downloaded tokio-serial v3.3.0
[INFO] [stderr]   Downloaded rplidar_drv v0.6.0
[INFO] [stderr]   Downloaded rpos_drv v0.2.0
[INFO] [stderr]   Downloaded mio-serial v3.3.0
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55d923aa2fcca293479ccce212884a484c8b9f7e6e867ba42563d5cf2659206f
[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" "55d923aa2fcca293479ccce212884a484c8b9f7e6e867ba42563d5cf2659206f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55d923aa2fcca293479ccce212884a484c8b9f7e6e867ba42563d5cf2659206f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d923aa2fcca293479ccce212884a484c8b9f7e6e867ba42563d5cf2659206f", kill_on_drop: false }`
[INFO] [stdout] 55d923aa2fcca293479ccce212884a484c8b9f7e6e867ba42563d5cf2659206f
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbed11683f639964a19c0048bdddb9be314431bfa2e2c650edc712a112091c07
[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" "bbed11683f639964a19c0048bdddb9be314431bfa2e2c650edc712a112091c07", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking byte-tools v0.3.0
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]     Checking utf-8 v0.7.4
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking crossbeam-utils v0.6.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking rpos_drv v0.2.0
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking block-padding v0.1.2
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling walkdir v2.2.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.3
[INFO] [stderr]     Checking tokio-timer v0.2.7
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking rplidar_drv v0.6.0
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.6.2
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.8
[INFO] [stderr]     Checking tungstenite v0.6.1
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking mcp3008 v1.0.0
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking sysfs_gpio v0.5.3
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]     Checking mio-serial v3.3.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.3
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-serial v3.3.0
[INFO] [stderr]     Checking tokio v0.1.11
[INFO] [stderr]     Checking tokio-dns-unofficial v0.3.1
[INFO] [stderr]     Checking tokio-tungstenite v0.6.0
[INFO] [stderr]    Compiling cargo_metadata v0.5.8
[INFO] [stderr]    Compiling skeptic v0.13.3
[INFO] [stderr]    Compiling i2cdev v0.3.2
[INFO] [stderr]  Documenting rover_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/motor_handler.rs:192:40
[INFO] [stdout]     |
[INFO] [stdout] 192 |         .expect("Time went backwards");;
[INFO] [stdout]     |                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/main.rs:4:9
[INFO] [stdout]     |
[INFO] [stdout] 4   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0517]: attribute should be applied to enum
[INFO] [stdout]   --> src/sensors/event.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |       #[repr(u128)]
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 89 | /     pub fn new(event: Event) -> TimedEvent {
[INFO] [stdout] 90 | |         let start = SystemTime::now();
[INFO] [stdout] 91 | |         let since_the_epoch = start
[INFO] [stdout] 92 | |             .duration_since(UNIX_EPOCH)
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         TimedEvent { event, time }
[INFO] [stdout] 98 | |     }
[INFO] [stdout]    | |_____- not an enum
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0517`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rover_server`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rover_server src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bufstream=/opt/rustwide/target/debug/deps/libbufstream-43e42649265204f9.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-cec400eebf8d9152.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-cf2af106ce6675af.rmeta --extern i2cdev=/opt/rustwide/target/debug/deps/libi2cdev-9ab3ceb58ed58998.rmeta --extern mcp3008=/opt/rustwide/target/debug/deps/libmcp3008-70e1f25171af1681.rmeta --extern rplidar_drv=/opt/rustwide/target/debug/deps/librplidar_drv-f24b6674f9b8362c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9d5ae4615c4db4f5.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-ab305aa9f4cbe189.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6a962e6907a351d4.rmeta --extern serialport=/opt/rustwide/target/debug/deps/libserialport-9f0f576f9fa2b75e.rmeta --extern sysfs_gpio=/opt/rustwide/target/debug/deps/libsysfs_gpio-225103ae9b85814e.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-0ee8971b87018120.rmeta --extern tokio_codec=/opt/rustwide/target/debug/deps/libtokio_codec-29a999c8d315494e.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-a1e97fc8d2f0fd42.rmeta --extern tokio_serial=/opt/rustwide/target/debug/deps/libtokio_serial-d1c86b6145affbc6.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-e0064990cfb09027.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "bbed11683f639964a19c0048bdddb9be314431bfa2e2c650edc712a112091c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbed11683f639964a19c0048bdddb9be314431bfa2e2c650edc712a112091c07", kill_on_drop: false }`
[INFO] [stdout] bbed11683f639964a19c0048bdddb9be314431bfa2e2c650edc712a112091c07