[INFO] fetching crate mdbook-docslab 0.1.0...
[INFO] building mdbook-docslab-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate mdbook-docslab 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate mdbook-docslab 0.1.0
[INFO] finished tweaking crates.io crate mdbook-docslab 0.1.0
[INFO] tweaked toml for crates.io crate mdbook-docslab 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-docslab 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook-docslab 0.1.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opener v0.6.1
[INFO] [stderr]   Downloaded normpath v1.2.0
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.11.0
[INFO] [stderr]   Downloaded strsim v0.11.0
[INFO] [stderr]   Downloaded pest_derive v2.7.8
[INFO] [stderr]   Downloaded pest_generator v2.7.8
[INFO] [stderr]   Downloaded anstream v0.6.13
[INFO] [stderr]   Downloaded ammonia v3.3.0
[INFO] [stderr]   Downloaded anyhow v1.0.81
[INFO] [stderr]   Downloaded bumpalo v3.15.4
[INFO] [stderr]   Downloaded pest v2.7.8
[INFO] [stderr]   Downloaded warp v0.3.6
[INFO] [stderr]   Downloaded pulldown-cmark v0.12.2
[INFO] [stderr]   Downloaded h2 v0.3.25
[INFO] [stderr]   Downloaded clap_complete v4.5.1
[INFO] [stderr]   Downloaded pest_meta v2.7.8
[INFO] [stderr]   Downloaded syn v2.0.57
[INFO] [stderr]   Downloaded mdbook v0.4.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b81da81e7da33e54bdfbcb367cbc848c1e3fcff93178b8de01f9bec32c95dcda
[INFO] running `Command { std: "docker" "start" "-a" "b81da81e7da33e54bdfbcb367cbc848c1e3fcff93178b8de01f9bec32c95dcda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b81da81e7da33e54bdfbcb367cbc848c1e3fcff93178b8de01f9bec32c95dcda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b81da81e7da33e54bdfbcb367cbc848c1e3fcff93178b8de01f9bec32c95dcda", kill_on_drop: false }`
[INFO] [stdout] b81da81e7da33e54bdfbcb367cbc848c1e3fcff93178b8de01f9bec32c95dcda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84c57686523df4f235ad674684d6694f602a2bd50393a4008f1adbb868ef4bed
[INFO] running `Command { std: "docker" "start" "-a" "84c57686523df4f235ad674684d6694f602a2bd50393a4008f1adbb868ef4bed", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling anstyle v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.135
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling strsim v0.11.0
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[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling socket2 v0.5.6
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling parking_lot v0.12.1
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[INFO] [stderr]    Compiling pulldown-cmark v0.12.2
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[INFO] [stderr]    Compiling scoped-tls v1.0.1
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[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling chrono v0.4.37
[INFO] [stderr]    Compiling notify-debouncer-mini v0.4.1
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling bstr v1.9.1
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling clap_complete v4.5.1
[INFO] [stderr]    Compiling pest v2.7.8
[INFO] [stderr]    Compiling tungstenite v0.20.1
[INFO] [stderr]    Compiling env_filter v0.1.0
[INFO] [stderr]    Compiling globset v0.4.14
[INFO] [stderr]    Compiling env_logger v0.11.3
[INFO] [stderr]    Compiling opener v0.6.1
[INFO] [stderr]    Compiling ignore v0.4.22
[INFO] [stderr]    Compiling html5ever v0.26.0
[INFO] [stderr]    Compiling pest_meta v2.7.8
[INFO] [stderr]    Compiling pest_generator v2.7.8
[INFO] [stderr]    Compiling pest_derive v2.7.8
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-stream v0.1.15
[INFO] [stderr]    Compiling tokio-tungstenite v0.20.1
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling h2 v0.3.25
[INFO] [stderr]    Compiling elasticlunr-rs v3.0.2
[INFO] [stderr]    Compiling handlebars v5.1.2
[INFO] [stderr]    Compiling ammonia v3.3.0
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling warp v0.3.6
[INFO] [stderr]    Compiling mdbook v0.4.37
[INFO] [stderr]    Compiling mdbook-docslab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/main.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn run(&self, ctx: &PreprocessorContext, mut book: Book) -> Result<Book, Error> {
[INFO] [stdout]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:27:46
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn run(&self, ctx: &PreprocessorContext, mut book: Book) -> Result<Book, Error> {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `Command { std: "docker" "inspect" "84c57686523df4f235ad674684d6694f602a2bd50393a4008f1adbb868ef4bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c57686523df4f235ad674684d6694f602a2bd50393a4008f1adbb868ef4bed", kill_on_drop: false }`
[INFO] [stdout] 84c57686523df4f235ad674684d6694f602a2bd50393a4008f1adbb868ef4bed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a08c216718499bfcd4bdee7be407963fb2e966dad89a025893d3bd935b229926
[INFO] running `Command { std: "docker" "start" "-a" "a08c216718499bfcd4bdee7be407963fb2e966dad89a025893d3bd935b229926", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdbook-docslab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/main.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn run(&self, ctx: &PreprocessorContext, mut book: Book) -> Result<Book, Error> {
[INFO] [stdout]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:27:46
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn run(&self, ctx: &PreprocessorContext, mut book: Book) -> Result<Book, Error> {
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "a08c216718499bfcd4bdee7be407963fb2e966dad89a025893d3bd935b229926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a08c216718499bfcd4bdee7be407963fb2e966dad89a025893d3bd935b229926", kill_on_drop: false }`
[INFO] [stdout] a08c216718499bfcd4bdee7be407963fb2e966dad89a025893d3bd935b229926