[INFO] cloning repository https://github.com/AnatolyBug/rust-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnatolyBug/rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnatolyBug%2Frust-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnatolyBug%2Frust-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04d598ea905eb42e093d57d38449f841bc521f06
[INFO] documenting AnatolyBug/rust-book against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnatolyBug%2Frust-book" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AnatolyBug/rust-book
[INFO] finished tweaking git repo https://github.com/AnatolyBug/rust-book
[INFO] tweaked toml for git repo https://github.com/AnatolyBug/rust-book written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AnatolyBug/rust-book on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AnatolyBug/rust-book 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
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[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
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[INFO] [stdout] warning: unused import: `Ref`
[INFO] [stdout]  --> driver/src/smart_pointers4.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::{RefCell, Cell, Ref};
[INFO] [stdout]   |                                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `px`
[INFO] [stdout]   --> driver/src/smart_pointers4.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let px: &u32 = &p.x; //Ok
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_px`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `py`
[INFO] [stdout]   --> driver/src/smart_pointers4.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let py: &mut u32 = &mut p.y; //ok because p is mut
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_py`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `qx`
[INFO] [stdout]   --> driver/src/smart_pointers4.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let qx: &u32 = &q.x; //Ok
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_qx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x3`
[INFO] [stdout]   --> driver/src/smart_pointers4.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let x3 = Rc::clone(&x2); //yet another ref to 1
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_x3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec_corr_with_other_curves`
[INFO] [stdout]   --> driver/src/ndarray_bench.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut vec_corr_with_other_curves = vec![corr_with_other_yields.view(); y_len -1 ];
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vec_corr_with_other_curves`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> driver/src/ndarray_bench.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut vec_yield_corr_row1 = vec![corr_with_self_yield.view()];
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> driver/src/ndarray_bench.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut vec_corr_with_other_curves = vec![corr_with_other_yields.view(); y_len -1 ];
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arr_test1` is never used
[INFO] [stdout]  --> driver/src/ndarray_bench.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn arr_test1() -> Array2<f64> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reduce_nans` is never used
[INFO] [stdout]   --> driver/src/ndarray_bench.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn reduce_nans(mut a: Array1<f64>, mut m: Array2<f64>) -> (Array1<f64>, Array2<f64>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `girr_corr_matrix` is never used
[INFO] [stdout]   --> driver/src/ndarray_bench.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn girr_corr_matrix() -> Array2<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shift_columns_by` is never used
[INFO] [stdout]   --> driver/src/ndarray_bench.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn shift_columns_by(by: usize, a: &Array2<f64>) -> Array2<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return Ref<T> and RefMut<T>
[INFO] [stdout]   |                                           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return `Ref<T>` and RefMut<T>
[INFO] [stdout]   |                                        +      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:5:57
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return Ref<T> and RefMut<T>
[INFO] [stdout]   |                                                         ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return Ref<T> and `RefMut<T>`
[INFO] [stdout]   |                                                   +         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:6:40
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many Ref<T> and RefMut<T> smart pointer are currently active
[INFO] [stdout]   |                                        ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many `Ref<T>` and RefMut<T> smart pointer are currently active
[INFO] [stdout]   |                                     +      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:6:54
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many Ref<T> and RefMut<T> smart pointer are currently active
[INFO] [stdout]   |                                                      ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many Ref<T> and `RefMut<T>` smart pointer are currently active
[INFO] [stdout]   |                                                +         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> driver/src/closures1.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn add_1 (x: u32) -> u32 {x+1};
[INFO] [stdout]    |                                   ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `kilo` should have an upper camel case name
[INFO] [stdout]  --> driver/src/types.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | type kilo = i32; //kilo is type synonym for i32
[INFO] [stdout]   |      ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Kilo`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> driver/src/types.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn takes_Heavy_type (x: Heavy) {};
[INFO] [stdout]    |                                      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> driver/src/types.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | //! String, Vec<T> are smart pointers
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 1 | //! String, `Vec<T>` are smart pointers
[INFO] [stdout]   |             +      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return Ref<T> and RefMut<T>
[INFO] [stdout]   |                                           ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return `Ref<T>` and RefMut<T>
[INFO] [stdout]   |                                        +      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:5:57
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return Ref<T> and RefMut<T>
[INFO] [stdout]   |                                                         ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! .borrow() and .borrow_mut() return Ref<T> and `RefMut<T>`
[INFO] [stdout]   |                                                   +         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:6:40
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many Ref<T> and RefMut<T> smart pointer are currently active
[INFO] [stdout]   |                                        ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many `Ref<T>` and RefMut<T> smart pointer are currently active
[INFO] [stdout]   |                                     +      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers3.rs:6:54
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many Ref<T> and RefMut<T> smart pointer are currently active
[INFO] [stdout]   |                                                      ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! RefCell keeps track of how many Ref<T> and `RefMut<T>` smart pointer are currently active
[INFO] [stdout]   |                                                +         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers2.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | //! Rc<T> for Reference Counting - when 0 references value dropped
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 2 | //! `Rc<T>` for Reference Counting - when 0 references value dropped
[INFO] [stdout]   |     +     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers2.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | //! Cell<T> is similar, but instead of reference to inner val, the val is copied(needs Copy) in and out.
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 7 | //! `Cell<T>` is similar, but instead of reference to inner val, the val is copied(needs Copy) in and out.
[INFO] [stdout]   |     +       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/smart_pointers2.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | //! Mutex<T> - interior mutability to be used across threads
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 9 | //! `Mutex<T>` - interior mutability to be used across threads
[INFO] [stdout]   |     +        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `T`
[INFO] [stdout]  --> driver/src/threads3.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | //! the call to lock of Mutex<T> returns a LockResult<smart pointer - MutexGuard>
[INFO] [stdout]   |                              ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: try marking as source code
[INFO] [stdout]   |
[INFO] [stdout] 9 | //! the call to lock of `Mutex<T>` returns a LockResult<smart pointer - MutexGuard>
[INFO] [stdout]   |                         +        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.62s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/collections/index.html and 3 other files
[INFO] running `Command { std: "docker" "inspect" "594267e7e13a61441006a9b7730c3c49bea0c05717ac1a814b51ebaeb1d6e022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "594267e7e13a61441006a9b7730c3c49bea0c05717ac1a814b51ebaeb1d6e022", kill_on_drop: false }`
[INFO] [stdout] 594267e7e13a61441006a9b7730c3c49bea0c05717ac1a814b51ebaeb1d6e022
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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" "+1.91.0" "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] 6e6811fff90be79de184ee4eda5de8372ee3996b792c43ab9d00c7104d8c905f
[INFO] running `Command { std: "docker" "start" "-a" "6e6811fff90be79de184ee4eda5de8372ee3996b792c43ab9d00c7104d8c905f", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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" "6e6811fff90be79de184ee4eda5de8372ee3996b792c43ab9d00c7104d8c905f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e6811fff90be79de184ee4eda5de8372ee3996b792c43ab9d00c7104d8c905f", kill_on_drop: false }`
[INFO] [stdout] 6e6811fff90be79de184ee4eda5de8372ee3996b792c43ab9d00c7104d8c905f
