[INFO] cloning repository https://github.com/HuguesGuilleus/snake-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HuguesGuilleus/snake-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuguesGuilleus%2Fsnake-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuguesGuilleus%2Fsnake-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 672d410930cfbae6e61ebf4337484fcb0d84da3c
[INFO] documenting HuguesGuilleus/snake-rs 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%2FHuguesGuilleus%2Fsnake-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HuguesGuilleus/snake-rs 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/HuguesGuilleus/snake-rs
[INFO] finished tweaking git repo https://github.com/HuguesGuilleus/snake-rs
[INFO] tweaked toml for git repo https://github.com/HuguesGuilleus/snake-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/HuguesGuilleus/snake-rs 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c59f08c350fa0725a4bc151d5c206b0f0dacc717e451f13c28da7f929cd4a083
[INFO] running `Command { std: "docker" "start" "-a" "c59f08c350fa0725a4bc151d5c206b0f0dacc717e451f13c28da7f929cd4a083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c59f08c350fa0725a4bc151d5c206b0f0dacc717e451f13c28da7f929cd4a083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c59f08c350fa0725a4bc151d5c206b0f0dacc717e451f13c28da7f929cd4a083", kill_on_drop: false }`
[INFO] [stdout] c59f08c350fa0725a4bc151d5c206b0f0dacc717e451f13c28da7f929cd4a083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 3134438505fbd2e4f5d288cb535f874dc23713e97fec92a73c3cd369a94232b8
[INFO] running `Command { std: "docker" "start" "-a" "3134438505fbd2e4f5d288cb535f874dc23713e97fec92a73c3cd369a94232b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking snake v0.1.0 (/opt/rustwide/workdir/snake)
[INFO] [stderr]  Documenting snake v0.1.0 (/opt/rustwide/workdir/snake)
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> snake/src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `BoardDimension` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> snake/src/lib.rs:70:10
[INFO] [stdout]    |
[INFO] [stdout] 70 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> snake/src/lib.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     height: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `BoardDimension` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> snake/src/lib.rs:70:10
[INFO] [stdout]    |
[INFO] [stdout] 70 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting snake-wasm v0.1.0 (/opt/rustwide/workdir/snake-wasm)
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking crossterm v0.20.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]  Documenting snake-linux v0.1.0 (/opt/rustwide/workdir/snake-linux)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.43s
[INFO] running `Command { std: "docker" "inspect" "3134438505fbd2e4f5d288cb535f874dc23713e97fec92a73c3cd369a94232b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3134438505fbd2e4f5d288cb535f874dc23713e97fec92a73c3cd369a94232b8", kill_on_drop: false }`
[INFO] [stdout] 3134438505fbd2e4f5d288cb535f874dc23713e97fec92a73c3cd369a94232b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 29ac197ca03a42fcdd61f431b999d8061b05e77b265a181c167f3cd6cfc886f2
[INFO] running `Command { std: "docker" "start" "-a" "29ac197ca03a42fcdd61f431b999d8061b05e77b265a181c167f3cd6cfc886f2", 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" "29ac197ca03a42fcdd61f431b999d8061b05e77b265a181c167f3cd6cfc886f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29ac197ca03a42fcdd61f431b999d8061b05e77b265a181c167f3cd6cfc886f2", kill_on_drop: false }`
[INFO] [stdout] 29ac197ca03a42fcdd61f431b999d8061b05e77b265a181c167f3cd6cfc886f2