[INFO] cloning repository https://github.com/centaurwho/rustress
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/centaurwho/rustress" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcentaurwho%2Frustress", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcentaurwho%2Frustress'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3b8c001007686b8179bcb16360e851e30819b6a
[INFO] documenting centaurwho/rustress against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcentaurwho%2Frustress" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/centaurwho/rustress on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/centaurwho/rustress
[INFO] finished tweaking git repo https://github.com/centaurwho/rustress
[INFO] tweaked toml for git repo https://github.com/centaurwho/rustress written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/centaurwho/rustress already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7cc25eea27276956ce5a42fc131c010995a435323a2ca8abd25bef7bd2cbcae
[INFO] running `Command { std: "docker" "start" "-a" "e7cc25eea27276956ce5a42fc131c010995a435323a2ca8abd25bef7bd2cbcae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7cc25eea27276956ce5a42fc131c010995a435323a2ca8abd25bef7bd2cbcae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7cc25eea27276956ce5a42fc131c010995a435323a2ca8abd25bef7bd2cbcae", kill_on_drop: false }`
[INFO] [stdout] e7cc25eea27276956ce5a42fc131c010995a435323a2ca8abd25bef7bd2cbcae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e39fc7e01257ced1e06fe90b5e9482f308842449d5c308acc18e8bd648b658d2
[INFO] running `Command { std: "docker" "start" "-a" "e39fc7e01257ced1e06fe90b5e9482f308842449d5c308acc18e8bd648b658d2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking rustress v0.1.0 (/opt/rustwide/workdir/rustress)
[INFO] [stderr]  Documenting rustress v0.1.0 (/opt/rustwide/workdir/rustress)
[INFO] [stdout] warning: unused import: `crate::NetworkProt::Tcp`
[INFO] [stdout]  --> rustress/src/client/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::NetworkProt::Tcp;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_config`
[INFO] [stdout]  --> rustress/src/configparser/mod.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn parse_config<'a, T>(contents: &'a str) -> T
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_server_config`
[INFO] [stdout]   --> rustress/src/configparser/mod.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn parse_server_config(contents: String) -> ServerConfig {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_client_config`
[INFO] [stdout]   --> rustress/src/configparser/mod.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn parse_client_config(contents: String) -> ClientConfig {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting test_client v0.1.0 (/opt/rustwide/workdir/test_client)
[INFO] [stderr]  Documenting test_server v0.1.0 (/opt/rustwide/workdir/test_server)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "e39fc7e01257ced1e06fe90b5e9482f308842449d5c308acc18e8bd648b658d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39fc7e01257ced1e06fe90b5e9482f308842449d5c308acc18e8bd648b658d2", kill_on_drop: false }`
[INFO] [stdout] e39fc7e01257ced1e06fe90b5e9482f308842449d5c308acc18e8bd648b658d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 34c7fefdb9f1c8845a9b36289c6ac8b8a2d5f9f2db658881d128c80520031f99
[INFO] running `Command { std: "docker" "start" "-a" "34c7fefdb9f1c8845a9b36289c6ac8b8a2d5f9f2db658881d128c80520031f99", kill_on_drop: false }`
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "34c7fefdb9f1c8845a9b36289c6ac8b8a2d5f9f2db658881d128c80520031f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c7fefdb9f1c8845a9b36289c6ac8b8a2d5f9f2db658881d128c80520031f99", kill_on_drop: false }`
[INFO] [stdout] 34c7fefdb9f1c8845a9b36289c6ac8b8a2d5f9f2db658881d128c80520031f99