[INFO] cloning repository https://github.com/HotelCalifornia/riirc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HotelCalifornia/riirc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHotelCalifornia%2Friirc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHotelCalifornia%2Friirc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b6981ad12165b9fcaca7176030418223b10569c
[INFO] documenting HotelCalifornia/riirc against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHotelCalifornia%2Friirc" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HotelCalifornia/riirc on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HotelCalifornia/riirc
[INFO] finished tweaking git repo https://github.com/HotelCalifornia/riirc
[INFO] tweaked toml for git repo https://github.com/HotelCalifornia/riirc written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/HotelCalifornia/riirc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derivative v2.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3a24e979f0437b53f6f0514df76f3ef37739f42ef19b07b9561074b78ad7267
[INFO] running `Command { std: "docker" "start" "-a" "a3a24e979f0437b53f6f0514df76f3ef37739f42ef19b07b9561074b78ad7267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3a24e979f0437b53f6f0514df76f3ef37739f42ef19b07b9561074b78ad7267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3a24e979f0437b53f6f0514df76f3ef37739f42ef19b07b9561074b78ad7267", kill_on_drop: false }`
[INFO] [stdout] a3a24e979f0437b53f6f0514df76f3ef37739f42ef19b07b9561074b78ad7267
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0e5fc0c9c390b855913fb9ba590bc41d4141be0ebe8f09f9ddbab1e903834d
[INFO] running `Command { std: "docker" "start" "-a" "2e0e5fc0c9c390b855913fb9ba590bc41d4141be0ebe8f09f9ddbab1e903834d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]    Compiling derivative v2.0.2
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]  Documenting riirc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `Command` is defined multiple times
[INFO] [stdout]    --> src/irc/proto.rs:313:1
[INFO] [stdout]     |
[INFO] [stdout] 28  | pub enum Command {
[INFO] [stdout]     | ---------------- previous definition of the type `Command` here
[INFO] [stdout] ...
[INFO] [stdout] 313 | pub enum Command {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^ `Command` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Command` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `riirc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name riirc src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c867f93d8f5b6980 -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-4f41d1b0f3c42351.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-77dd57dd0ea1ad95.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-eec97c1961a0fb68.rmeta --extern num_enum=/opt/rustwide/target/debug/deps/libnum_enum-6a791c997b75e87b.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-f051352ff41cfd9b.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-a91ec79a7fd506d5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2e0e5fc0c9c390b855913fb9ba590bc41d4141be0ebe8f09f9ddbab1e903834d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0e5fc0c9c390b855913fb9ba590bc41d4141be0ebe8f09f9ddbab1e903834d", kill_on_drop: false }`
[INFO] [stdout] 2e0e5fc0c9c390b855913fb9ba590bc41d4141be0ebe8f09f9ddbab1e903834d