[INFO] fetching crate leetcode_for_rust 0.1.37...
[INFO] documenting leetcode_for_rust-0.1.37 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate leetcode_for_rust 0.1.37 into /workspace/builds/worker-70/source
[INFO] validating manifest of crates.io crate leetcode_for_rust 0.1.37 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate leetcode_for_rust 0.1.37
[INFO] finished tweaking crates.io crate leetcode_for_rust 0.1.37
[INFO] tweaked toml for crates.io crate leetcode_for_rust 0.1.37 written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e63446ccdcffc542ce6e96430e2c1ad683d5ad9903115159f0e0ac6b388ac295
[INFO] running `Command { std: "docker" "start" "-a" "e63446ccdcffc542ce6e96430e2c1ad683d5ad9903115159f0e0ac6b388ac295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e63446ccdcffc542ce6e96430e2c1ad683d5ad9903115159f0e0ac6b388ac295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e63446ccdcffc542ce6e96430e2c1ad683d5ad9903115159f0e0ac6b388ac295", kill_on_drop: false }`
[INFO] [stdout] e63446ccdcffc542ce6e96430e2c1ad683d5ad9903115159f0e0ac6b388ac295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c79f2ae3f149740a2220495ab825aa9cbc20833706de8969153826bbe879f64c
[INFO] running `Command { std: "docker" "start" "-a" "c79f2ae3f149740a2220495ab825aa9cbc20833706de8969153826bbe879f64c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting leetcode_for_rust v0.1.37 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/cd0224_basic_calculator/mod.rs:88:16
[INFO] [stdout]    |
[INFO] [stdout] 88 |             '0'...'9' => {
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `j`
[INFO] [stdout]  --> src/cd0547_friend_circles/mod.rs:5:106
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! Given a N*N matrix **M** representing the friend relationship between students in the class. If M[i][j] = 1, then the ith and jth stu...
[INFO] [stdout]   |                                                                                                          ^ no item named `j` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `1,200`
[INFO] [stdout]   --> src/cd0547_friend_circles/mod.rs:33:23
[INFO] [stdout]    |
[INFO] [stdout] 33 | //! 1. N is in range [1,200].
[INFO] [stdout]    |                       ^^^^^ no item named `1,200` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `i`
[INFO] [stdout]   --> src/cd0547_friend_circles/mod.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 | //! 2. M[i][i] = 1 for all students.
[INFO] [stdout]    |             ^ no item named `i` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `j`
[INFO] [stdout]   --> src/cd0547_friend_circles/mod.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 | //! 3. If M[i][j] = 1, then M[j][i] = 1.
[INFO] [stdout]    |                ^ no item named `j` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `i`
[INFO] [stdout]   --> src/cd0547_friend_circles/mod.rs:35:34
[INFO] [stdout]    |
[INFO] [stdout] 35 | //! 3. If M[i][j] = 1, then M[j][i] = 1.
[INFO] [stdout]    |                                  ^ no item named `i` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/cd0052_n_queens_ii/mod.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |   /// ```rust
[INFO] [stdout]     |  _____^
[INFO] [stdout] 144 | | /// impl Solution {
[INFO] [stdout] 145 | | ///    pub fn total_n_queens(n: i32) -> i32 {
[INFO] [stdout] 146 | | ///        if n < 1 { return 0; }
[INFO] [stdout] ...   |
[INFO] [stdout] 166 | | ///
[INFO] [stdout] 167 | | /// ```
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout]     = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0094_binary_tree_inorder_traversal/mod.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 8  | | //! Input: [1,null,2,3]
[INFO] [stdout] 9  | | //!    1
[INFO] [stdout] 10 | | //!     \
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | | //! Output: [1,3,2]
[INFO] [stdout] 16 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 7  | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0098_validate_binary_search_tree/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 14 | | //! Input:
[INFO] [stdout] 15 | | //!     2
[INFO] [stdout] 16 | | //!    / \
[INFO] [stdout] 17 | | //!   1   3
[INFO] [stdout] 18 | | //! Output: true
[INFO] [stdout] 19 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 13 | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0098_validate_binary_search_tree/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 24 | | //!     5
[INFO] [stdout] 25 | | //!    / \
[INFO] [stdout] 26 | | //!   1   4
[INFO] [stdout] ...  |
[INFO] [stdout] 31 | | //!              is 5 but its right child's value is 4.
[INFO] [stdout] 32 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 23 | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0102_binary_tree_level_order_traversal/mod.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 9  | | //!     3
[INFO] [stdout] 10 | | //!    / \
[INFO] [stdout] 11 | | //!   9  20
[INFO] [stdout] 12 | | //!     /  \
[INFO] [stdout] 13 | | //!    15   7
[INFO] [stdout] 14 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 8  | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0104_maximum_depth_of_binary_tree/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 13 | | //!     3
[INFO] [stdout] 14 | | //!    / \
[INFO] [stdout] 15 | | //!   9  20
[INFO] [stdout] 16 | | //!     /  \
[INFO] [stdout] 17 | | //!    15   7
[INFO] [stdout] 18 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 12 | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0111_minimum_depth_of_binary_tree/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 13 | | //!     3
[INFO] [stdout] 14 | | //!    / \
[INFO] [stdout] 15 | | //!   9  20
[INFO] [stdout] 16 | | //!     /  \
[INFO] [stdout] 17 | | //!    15   7
[INFO] [stdout] 18 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 12 | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0144_binary_tree_preorder_traversal/mod.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 8  | | //! Input: [1,null,2,3]
[INFO] [stdout] 9  | | //!    1
[INFO] [stdout] 10 | | //!     \
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | | //! Output: [1,2,3]
[INFO] [stdout] 16 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 7  | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/cd0145_binary_tree_postorder_traversal/mod.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |   //! ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 8  | | //! Input: [1,null,2,3]
[INFO] [stdout] 9  | | //!    1
[INFO] [stdout] 10 | | //!     \
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | | //! Output: [3,2,1]
[INFO] [stdout] 16 | | //! ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 7  | //! ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "c79f2ae3f149740a2220495ab825aa9cbc20833706de8969153826bbe879f64c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c79f2ae3f149740a2220495ab825aa9cbc20833706de8969153826bbe879f64c", kill_on_drop: false }`
[INFO] [stdout] c79f2ae3f149740a2220495ab825aa9cbc20833706de8969153826bbe879f64c
