[INFO] cloning repository https://github.com/xero-lib/tcp-chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xero-lib/tcp-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxero-lib%2Ftcp-chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxero-lib%2Ftcp-chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ceb9da8a259db0ffc2bb644ba9827862701db75
[INFO] documenting xero-lib/tcp-chat 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%2Fxero-lib%2Ftcp-chat" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xero-lib/tcp-chat 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/xero-lib/tcp-chat
[INFO] finished tweaking git repo https://github.com/xero-lib/tcp-chat
[INFO] tweaked toml for git repo https://github.com/xero-lib/tcp-chat written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/xero-lib/tcp-chat 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed488e4169a34daf53f87adc34e951c252baf4c5054401af0f5264e60221b564
[INFO] running `Command { std: "docker" "start" "-a" "ed488e4169a34daf53f87adc34e951c252baf4c5054401af0f5264e60221b564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed488e4169a34daf53f87adc34e951c252baf4c5054401af0f5264e60221b564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed488e4169a34daf53f87adc34e951c252baf4c5054401af0f5264e60221b564", kill_on_drop: false }`
[INFO] [stdout] ed488e4169a34daf53f87adc34e951c252baf4c5054401af0f5264e60221b564
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 30f4f999764e0eb39ae7a223f1e0381762cd20b992ff95dd7ee3b66243f104ad
[INFO] running `Command { std: "docker" "start" "-a" "30f4f999764e0eb39ae7a223f1e0381762cd20b992ff95dd7ee3b66243f104ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]  Documenting tcp-chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.26s
[INFO] running `Command { std: "docker" "inspect" "30f4f999764e0eb39ae7a223f1e0381762cd20b992ff95dd7ee3b66243f104ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f4f999764e0eb39ae7a223f1e0381762cd20b992ff95dd7ee3b66243f104ad", kill_on_drop: false }`
[INFO] [stdout] 30f4f999764e0eb39ae7a223f1e0381762cd20b992ff95dd7ee3b66243f104ad