[INFO] cloning repository https://github.com/LgnMs/my-leetcode-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LgnMs/my-leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLgnMs%2Fmy-leetcode-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLgnMs%2Fmy-leetcode-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1510c4a229239e22d30000124dd90f19b5a44a60 [INFO] documenting LgnMs/my-leetcode-rust 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%2FLgnMs%2Fmy-leetcode-rust" "/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/LgnMs/my-leetcode-rust 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/LgnMs/my-leetcode-rust [INFO] finished tweaking git repo https://github.com/LgnMs/my-leetcode-rust [INFO] tweaked toml for git repo https://github.com/LgnMs/my-leetcode-rust written to /workspace/builds/worker-15/source/Cargo.toml [INFO] crate git repo https://github.com/LgnMs/my-leetcode-rust 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] 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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d5122c593b10ebb496b63414c3970ee791d0d3f26f3cee01aaa01a305708f92a [INFO] running `Command { std: "docker" "start" "-a" "d5122c593b10ebb496b63414c3970ee791d0d3f26f3cee01aaa01a305708f92a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d5122c593b10ebb496b63414c3970ee791d0d3f26f3cee01aaa01a305708f92a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5122c593b10ebb496b63414c3970ee791d0d3f26f3cee01aaa01a305708f92a", kill_on_drop: false }` [INFO] [stdout] d5122c593b10ebb496b63414c3970ee791d0d3f26f3cee01aaa01a305708f92a [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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 69b292868e1ac641b64f0db4b3bf532f175066d0674ec180eae7d45fd7295445 [INFO] running `Command { std: "docker" "start" "-a" "69b292868e1ac641b64f0db4b3bf532f175066d0674ec180eae7d45fd7295445", kill_on_drop: false }` [INFO] [stderr] Checking tree v0.1.0 (/opt/rustwide/workdir/tree) [INFO] [stderr] Documenting greedy v0.1.0 (/opt/rustwide/workdir/greedy) [INFO] [stderr] Documenting linked_list v0.1.0 (/opt/rustwide/workdir/linked_list) [INFO] [stderr] Documenting string v0.1.0 (/opt/rustwide/workdir/string) [INFO] [stderr] Documenting two_pointers v0.1.0 (/opt/rustwide/workdir/two_pointers) [INFO] [stderr] Documenting sort v0.1.0 (/opt/rustwide/workdir/sort) [INFO] [stderr] Documenting tree v0.1.0 (/opt/rustwide/workdir/tree) [INFO] [stderr] Documenting dynamic_programming v0.1.0 (/opt/rustwide/workdir/dynamic_programming) [INFO] [stderr] Documenting bit_manipulation v0.1.0 (/opt/rustwide/workdir/bit_manipulation) [INFO] [stderr] Documenting hash_table v0.1.0 (/opt/rustwide/workdir/hash_table) [INFO] [stderr] Documenting binary_search v0.1.0 (/opt/rustwide/workdir/binary_search) [INFO] [stderr] Documenting math v0.1.0 (/opt/rustwide/workdir/math) [INFO] [stdout] warning: function is never used: `is_valid_bst` [INFO] [stdout] --> tree/is_valid_bst.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn is_valid_bst(root: Option>>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_valid_bst2` [INFO] [stdout] --> tree/is_valid_bst.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn is_valid_bst2(root: Option>>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Rt` [INFO] [stdout] --> tree/max_depth.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | type Rt = Rc>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `max_depth` [INFO] [stdout] --> tree/max_depth.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn max_depth(root: Option) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `preorder_traversal` [INFO] [stdout] --> tree/preorder_traversal.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn preorder_traversal(root: Option>>) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Node` [INFO] [stdout] --> tree/is_symmetric.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | pub type Node = Rc>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_symmetric` [INFO] [stdout] --> tree/is_symmetric.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn is_symmetric(root: Option) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Documenting playground v0.1.0 (/opt/rustwide/workdir/playground) [INFO] [stderr] error: could not document `linked_list` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name linked_list linked_list/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=694ebfa692681696 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "69b292868e1ac641b64f0db4b3bf532f175066d0674ec180eae7d45fd7295445", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69b292868e1ac641b64f0db4b3bf532f175066d0674ec180eae7d45fd7295445", kill_on_drop: false }` [INFO] [stdout] 69b292868e1ac641b64f0db4b3bf532f175066d0674ec180eae7d45fd7295445