[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fa0e7016aff899624955b07f456c2ab7c53ae15
[INFO] documenting Leonti/rust-socket-server against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[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 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] afd5da361890abd643abb01277794425f55fc95cba4ec7c994ce38b739d469fc
[INFO] running `Command { std: "docker" "start" "-a" "afd5da361890abd643abb01277794425f55fc95cba4ec7c994ce38b739d469fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afd5da361890abd643abb01277794425f55fc95cba4ec7c994ce38b739d469fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd5da361890abd643abb01277794425f55fc95cba4ec7c994ce38b739d469fc", kill_on_drop: false }`
[INFO] [stdout] afd5da361890abd643abb01277794425f55fc95cba4ec7c994ce38b739d469fc
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] e3aee25d25ccca64879ab06d29160c62d0aedb517f45f2f904c09d5f657954eb
[INFO] running `Command { std: "docker" "start" "-a" "e3aee25d25ccca64879ab06d29160c62d0aedb517f45f2f904c09d5f657954eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking byte-tools v0.3.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking utf-8 v0.7.4
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking block-padding v0.1.2
[INFO] [stderr]     Checking base64 v0.10.0
[INFO] [stderr]    Compiling walkdir v2.2.6
[INFO] [stderr]     Checking rpos_drv v0.2.0
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking smallvec v0.6.13
[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]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-current-thread v0.1.3
[INFO] [stderr]     Checking tokio-timer v0.2.7
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.8
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]     Checking tungstenite v0.6.1
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking mcp3008 v1.0.0
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]     Checking mio-serial v3.3.0
[INFO] [stderr]     Checking sysfs_gpio v0.5.3
[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-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.3
[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] error: 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: `#[deny(redundant_semicolons)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[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-bd9a8f89f99d626f.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-44889cb91613e11e.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-7a00c9c1a85c2f4a.rmeta --extern i2cdev=/opt/rustwide/target/debug/deps/libi2cdev-440baa0dc5a8d6cf.rmeta --extern mcp3008=/opt/rustwide/target/debug/deps/libmcp3008-d727bc5f18c19663.rmeta --extern rplidar_drv=/opt/rustwide/target/debug/deps/librplidar_drv-5db95da1b32c3412.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-45b2134d597bc528.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-6188cb3b03a1a609.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-dbe74ae0d1f2dadd.rmeta --extern serialport=/opt/rustwide/target/debug/deps/libserialport-b61981e569118508.rmeta --extern sysfs_gpio=/opt/rustwide/target/debug/deps/libsysfs_gpio-9dae4dcdeaf0aac5.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-82f8081d50cff929.rmeta --extern tokio_codec=/opt/rustwide/target/debug/deps/libtokio_codec-af0049b590469abe.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-bba7c9bc7f6104fd.rmeta --extern tokio_serial=/opt/rustwide/target/debug/deps/libtokio_serial-9c5b19a2253b40fc.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-473ca34c452dd6f8.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "e3aee25d25ccca64879ab06d29160c62d0aedb517f45f2f904c09d5f657954eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3aee25d25ccca64879ab06d29160c62d0aedb517f45f2f904c09d5f657954eb", kill_on_drop: false }`
[INFO] [stdout] e3aee25d25ccca64879ab06d29160c62d0aedb517f45f2f904c09d5f657954eb