[INFO] cloning repository https://github.com/DavideCanton/dancing_links
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DavideCanton/dancing_links" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavideCanton%2Fdancing_links", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavideCanton%2Fdancing_links'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90374a785fc516da05cf68f5178af3699d0fb329
[INFO] documenting DavideCanton/dancing_links against beta-2025-10-28 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavideCanton%2Fdancing_links" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DavideCanton/dancing_links
[INFO] finished tweaking git repo https://github.com/DavideCanton/dancing_links
[INFO] tweaked toml for git repo https://github.com/DavideCanton/dancing_links written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DavideCanton/dancing_links on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DavideCanton/dancing_links already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 439009714c7178594a594ce7ce2f8fc12e055f0de43097a2e7a44d25524a5a4f
[INFO] running `Command { std: "docker" "start" "-a" "439009714c7178594a594ce7ce2f8fc12e055f0de43097a2e7a44d25524a5a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "439009714c7178594a594ce7ce2f8fc12e055f0de43097a2e7a44d25524a5a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439009714c7178594a594ce7ce2f8fc12e055f0de43097a2e7a44d25524a5a4f", kill_on_drop: false }`
[INFO] [stdout] 439009714c7178594a594ce7ce2f8fc12e055f0de43097a2e7a44d25524a5a4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c307002b3f88a563777d461fa69fac4f0e9ea17a8b3e226c135efbd33302de9c
[INFO] running `Command { std: "docker" "start" "-a" "c307002b3f88a563777d461fa69fac4f0e9ea17a8b3e226c135efbd33302de9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]     Checking once_cell v1.20.3
[INFO] [stderr]     Checking log v0.4.25
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking indexmap v2.7.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]    Compiling time-macros v0.2.19
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking bumpalo v3.17.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking priority-queue v2.1.2
[INFO] [stderr]     Checking time v0.3.37
[INFO] [stderr]     Checking simple_logger v5.0.0
[INFO] [stderr]    Compiling logging_timer_proc_macros v1.1.1
[INFO] [stderr]     Checking logging_timer v1.1.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling concat-idents v1.1.5
[INFO] [stderr]    Compiling clap_derive v4.5.28
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stderr]     Checking clap v4.5.30
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dancing_links_matrix v0.1.0 (/opt/rustwide/workdir/crates/dancing_links_matrix)
[INFO] [stderr]  Documenting dancing_links_matrix v0.1.0 (/opt/rustwide/workdir/crates/dancing_links_matrix)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> crates/dancing_links_matrix/src/solver.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 93 |     ) -> Solution<T> {
[INFO] [stdout]    |          ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 93 |     ) -> Solution<'_, T> {
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> crates/dancing_links_matrix/src/solver.rs:119:18
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn solve(&self) -> Vec<Solution<T>> {
[INFO] [stdout]     |                  ^^^^^         ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn solve(&self) -> Vec<Solution<'_, T>> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cmd_common v0.1.0 (/opt/rustwide/workdir/crates/cmd_common)
[INFO] [stderr]  Documenting cmd_common v0.1.0 (/opt/rustwide/workdir/crates/cmd_common)
[INFO] [stderr]  Documenting sudoku v0.1.0 (/opt/rustwide/workdir/crates/sudoku)
[INFO] [stderr]  Documenting nqueens v0.1.0 (/opt/rustwide/workdir/crates/nqueens)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.14s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/cmd_common/index.html and 3 other files
[INFO] running `Command { std: "docker" "inspect" "c307002b3f88a563777d461fa69fac4f0e9ea17a8b3e226c135efbd33302de9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c307002b3f88a563777d461fa69fac4f0e9ea17a8b3e226c135efbd33302de9c", kill_on_drop: false }`
[INFO] [stdout] c307002b3f88a563777d461fa69fac4f0e9ea17a8b3e226c135efbd33302de9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57610023bc6a72ec3090d1753a27f7f7adb6b7df7a4d514bcf9f009823ce574d
[INFO] running `Command { std: "docker" "start" "-a" "57610023bc6a72ec3090d1753a27f7f7adb6b7df7a4d514bcf9f009823ce574d", 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" "57610023bc6a72ec3090d1753a27f7f7adb6b7df7a4d514bcf9f009823ce574d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57610023bc6a72ec3090d1753a27f7f7adb6b7df7a4d514bcf9f009823ce574d", kill_on_drop: false }`
[INFO] [stdout] 57610023bc6a72ec3090d1753a27f7f7adb6b7df7a4d514bcf9f009823ce574d
