[INFO] cloning repository https://github.com/LjtGentle/rust_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LjtGentle/rust_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLjtGentle%2Frust_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLjtGentle%2Frust_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75a7cb424e748715f35e5d620f6e45c7e6140bd2
[INFO] documenting LjtGentle/rust_demo against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLjtGentle%2Frust_demo" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LjtGentle/rust_demo on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LjtGentle/rust_demo
[INFO] finished tweaking git repo https://github.com/LjtGentle/rust_demo
[INFO] tweaked toml for git repo https://github.com/LjtGentle/rust_demo written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LjtGentle/rust_demo 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6941f1a5e5c8e134d2a14097ee486f15b109bafb2ee7434bbe70762bdf200c6b
[INFO] running `Command { std: "docker" "start" "-a" "6941f1a5e5c8e134d2a14097ee486f15b109bafb2ee7434bbe70762bdf200c6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6941f1a5e5c8e134d2a14097ee486f15b109bafb2ee7434bbe70762bdf200c6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6941f1a5e5c8e134d2a14097ee486f15b109bafb2ee7434bbe70762bdf200c6b", kill_on_drop: false }`
[INFO] [stdout] 6941f1a5e5c8e134d2a14097ee486f15b109bafb2ee7434bbe70762bdf200c6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db1d7c25560f9f4a8d97f896fa62dd147e25ee86c63d22aa1bc45f7cfa0ef2ff
[INFO] running `Command { std: "docker" "start" "-a" "db1d7c25560f9f4a8d97f896fa62dd147e25ee86c63d22aa1bc45f7cfa0ef2ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking adder v0.1.0 (/opt/rustwide/workdir/adder)
[INFO] [stderr]     Checking restaurant v0.1.0 (/opt/rustwide/workdir/restaurant)
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> adder/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seat_at_table` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |         fn seat_at_table() {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_order` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         fn take_order() {}
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serve_order` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |         fn serve_order() {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_payment` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fn take_payment() {}
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> adder/src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn greeting(name: &str) -> String {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> adder/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Rectangle {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 10 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> adder/src/lib.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 15 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_two` is never used
[INFO] [stdout]   --> adder/src/lib.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn add_two(num: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> adder/src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 30 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `println_return_10` is never used
[INFO] [stdout]   --> adder/src/lib.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn println_return_10(num: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]  Documenting rust_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/fearless_concurrency.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |             thread::sleep((Duration::from_millis(1)));
[INFO] [stdout]    |                           ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 -             thread::sleep((Duration::from_millis(1)));
[INFO] [stdout] 14 +             thread::sleep(Duration::from_millis(1));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/smart_pointers.rs:362:47
[INFO] [stdout]     |
[INFO] [stdout] 362 |     *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout]     |                                               ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 362 -     *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout] 362 +     *leaf.parent.borrow_mut() = Rc::downgrade(&branch);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/smart_pointers.rs:386:51
[INFO] [stdout]     |
[INFO] [stdout] 386 |         *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout]     |                                                   ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 386 -         *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout] 386 +         *leaf.parent.borrow_mut() = Rc::downgrade(&branch);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rust_demo/index.html
[INFO] running `Command { std: "docker" "inspect" "db1d7c25560f9f4a8d97f896fa62dd147e25ee86c63d22aa1bc45f7cfa0ef2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db1d7c25560f9f4a8d97f896fa62dd147e25ee86c63d22aa1bc45f7cfa0ef2ff", kill_on_drop: false }`
[INFO] [stdout] db1d7c25560f9f4a8d97f896fa62dd147e25ee86c63d22aa1bc45f7cfa0ef2ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8310686ad9d8ba818675eb666feacf24188640fc92929547ba3a010ec294ab8c
[INFO] running `Command { std: "docker" "start" "-a" "8310686ad9d8ba818675eb666feacf24188640fc92929547ba3a010ec294ab8c", kill_on_drop: false }`
[INFO] [stderr] error: no library targets found in package `rust_demo`
[INFO] running `Command { std: "docker" "inspect" "8310686ad9d8ba818675eb666feacf24188640fc92929547ba3a010ec294ab8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8310686ad9d8ba818675eb666feacf24188640fc92929547ba3a010ec294ab8c", kill_on_drop: false }`
[INFO] [stdout] 8310686ad9d8ba818675eb666feacf24188640fc92929547ba3a010ec294ab8c
[INFO] documenting LjtGentle/rust_demo against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLjtGentle%2Frust_demo" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LjtGentle/rust_demo on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LjtGentle/rust_demo
[INFO] finished tweaking git repo https://github.com/LjtGentle/rust_demo
[INFO] tweaked toml for git repo https://github.com/LjtGentle/rust_demo written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LjtGentle/rust_demo 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-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e6bbacfe46c26ca15f26a8401504009c4f19dd2cdd07f8448101937c3ff2dfe
[INFO] running `Command { std: "docker" "start" "-a" "2e6bbacfe46c26ca15f26a8401504009c4f19dd2cdd07f8448101937c3ff2dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e6bbacfe46c26ca15f26a8401504009c4f19dd2cdd07f8448101937c3ff2dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e6bbacfe46c26ca15f26a8401504009c4f19dd2cdd07f8448101937c3ff2dfe", kill_on_drop: false }`
[INFO] [stdout] 2e6bbacfe46c26ca15f26a8401504009c4f19dd2cdd07f8448101937c3ff2dfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0e355b9fded302310276607ad2348120c589172e5ce870a8e89ca4cdc12e01e
[INFO] running `Command { std: "docker" "start" "-a" "f0e355b9fded302310276607ad2348120c589172e5ce870a8e89ca4cdc12e01e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking adder v0.1.0 (/opt/rustwide/workdir/adder)
[INFO] [stderr]     Checking restaurant v0.1.0 (/opt/rustwide/workdir/restaurant)
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> adder/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seat_at_table` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |         fn seat_at_table() {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_order` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         fn take_order() {}
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serve_order` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |         fn serve_order() {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_payment` is never used
[INFO] [stdout]   --> restaurant/src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fn take_payment() {}
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> adder/src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn greeting(name: &str) -> String {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> adder/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Rectangle {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 10 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> adder/src/lib.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 15 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_two` is never used
[INFO] [stdout]   --> adder/src/lib.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn add_two(num: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> adder/src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 30 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `println_return_10` is never used
[INFO] [stdout]   --> adder/src/lib.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn println_return_10(num: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]  Documenting rust_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/fearless_concurrency.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |             thread::sleep((Duration::from_millis(1)));
[INFO] [stdout]    |                           ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 -             thread::sleep((Duration::from_millis(1)));
[INFO] [stdout] 14 +             thread::sleep(Duration::from_millis(1));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/smart_pointers.rs:362:47
[INFO] [stdout]     |
[INFO] [stdout] 362 |     *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout]     |                                               ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 362 -     *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout] 362 +     *leaf.parent.borrow_mut() = Rc::downgrade(&branch);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/smart_pointers.rs:386:51
[INFO] [stdout]     |
[INFO] [stdout] 386 |         *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout]     |                                                   ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 386 -         *leaf.parent.borrow_mut() = Rc::downgrade((&branch));
[INFO] [stdout] 386 +         *leaf.parent.borrow_mut() = Rc::downgrade(&branch);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rust_demo/index.html
[INFO] running `Command { std: "docker" "inspect" "f0e355b9fded302310276607ad2348120c589172e5ce870a8e89ca4cdc12e01e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e355b9fded302310276607ad2348120c589172e5ce870a8e89ca4cdc12e01e", kill_on_drop: false }`
[INFO] [stdout] f0e355b9fded302310276607ad2348120c589172e5ce870a8e89ca4cdc12e01e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c73c1dcadd70aac52eac8006c3b7711af4c5477e37aa0b544fa4a876fa1c718
[INFO] running `Command { std: "docker" "start" "-a" "7c73c1dcadd70aac52eac8006c3b7711af4c5477e37aa0b544fa4a876fa1c718", kill_on_drop: false }`
[INFO] [stderr] error: no library targets found in package `rust_demo`
[INFO] running `Command { std: "docker" "inspect" "7c73c1dcadd70aac52eac8006c3b7711af4c5477e37aa0b544fa4a876fa1c718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c73c1dcadd70aac52eac8006c3b7711af4c5477e37aa0b544fa4a876fa1c718", kill_on_drop: false }`
[INFO] [stdout] 7c73c1dcadd70aac52eac8006c3b7711af4c5477e37aa0b544fa4a876fa1c718
