[INFO] fetching crate mdbook-docslab 0.1.0...
[INFO] building mdbook-docslab-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate mdbook-docslab 0.1.0 into /workspace/builds/worker-5-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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-docslab 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding v2.5.0
[INFO] [stderr]   Downloaded normpath v1.2.0
[INFO] [stderr]   Downloaded kqueue-sys v1.0.4
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.10.0
[INFO] [stderr]   Downloaded pest_generator v2.7.8
[INFO] [stderr]   Downloaded globset v0.4.14
[INFO] [stderr]   Downloaded kqueue v1.0.8
[INFO] [stderr]   Downloaded opener v0.6.1
[INFO] [stderr]   Downloaded clap_complete v4.5.1
[INFO] [stderr]   Downloaded pest_derive v2.7.8
[INFO] [stderr]   Downloaded ignore v0.4.22
[INFO] [stderr]   Downloaded pest_meta v2.7.8
[INFO] [stderr]   Downloaded notify v6.1.1
[INFO] [stderr]   Downloaded pest v2.7.8
[INFO] [stderr]   Downloaded pulldown-cmark v0.10.0
[INFO] [stderr]   Downloaded winnow v0.6.24
[INFO] [stderr]   Downloaded warp v0.3.6
[INFO] [stderr]   Downloaded notify-debouncer-mini v0.4.1
[INFO] [stderr]   Downloaded syn v2.0.57
[INFO] [stderr]   Downloaded chrono v0.4.37
[INFO] [stderr]   Downloaded bstr v1.9.1
[INFO] [stderr]   Downloaded mdbook v0.4.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39c993b0494535db9d74f9ba9cb98cbd5ecf7ea7b93a3bbdd561fd1d98330eb1
[INFO] running `Command { std: "docker" "start" "-a" "39c993b0494535db9d74f9ba9cb98cbd5ecf7ea7b93a3bbdd561fd1d98330eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39c993b0494535db9d74f9ba9cb98cbd5ecf7ea7b93a3bbdd561fd1d98330eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39c993b0494535db9d74f9ba9cb98cbd5ecf7ea7b93a3bbdd561fd1d98330eb1", kill_on_drop: false }`
[INFO] [stdout] 39c993b0494535db9d74f9ba9cb98cbd5ecf7ea7b93a3bbdd561fd1d98330eb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 138bbb995b13e4d2451eb5e8e6c2c269626eba53cb0010cedadf1c65ca3c835c
[INFO] running `Command { std: "docker" "start" "-a" "138bbb995b13e4d2451eb5e8e6c2c269626eba53cb0010cedadf1c65ca3c835c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
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[INFO] [stderr]    Compiling anyhow v1.0.81
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[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling pulldown-cmark v0.12.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling notify-debouncer-mini v0.4.1
[INFO] [stderr]    Compiling pathdiff v0.2.1
[INFO] [stderr]    Compiling topological-sort v0.2.2
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling chrono v0.4.37
[INFO] [stderr]    Compiling winnow v0.6.24
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling bstr v1.9.1
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling env_filter v0.1.0
[INFO] [stderr]    Compiling env_logger v0.11.3
[INFO] [stderr]    Compiling globset v0.4.14
[INFO] [stderr]    Compiling opener v0.6.1
[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 ignore v0.4.22
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling futures-util v0.3.30
[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 toml_edit v0.22.22
[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 h2 v0.3.25
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]    Compiling serde_json v1.0.135
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling handlebars v5.1.2
[INFO] [stderr]    Compiling elasticlunr-rs v3.0.2
[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 29s
[INFO] running `Command { std: "docker" "inspect" "138bbb995b13e4d2451eb5e8e6c2c269626eba53cb0010cedadf1c65ca3c835c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "138bbb995b13e4d2451eb5e8e6c2c269626eba53cb0010cedadf1c65ca3c835c", kill_on_drop: false }`
[INFO] [stdout] 138bbb995b13e4d2451eb5e8e6c2c269626eba53cb0010cedadf1c65ca3c835c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71feb53ab1447dc0a39333fc18501b17c6a990e4d2f63a10ac6cf71273ccb222
[INFO] running `Command { std: "docker" "start" "-a" "71feb53ab1447dc0a39333fc18501b17c6a990e4d2f63a10ac6cf71273ccb222", 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 0.61s
[INFO] running `Command { std: "docker" "inspect" "71feb53ab1447dc0a39333fc18501b17c6a990e4d2f63a10ac6cf71273ccb222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71feb53ab1447dc0a39333fc18501b17c6a990e4d2f63a10ac6cf71273ccb222", kill_on_drop: false }`
[INFO] [stdout] 71feb53ab1447dc0a39333fc18501b17c6a990e4d2f63a10ac6cf71273ccb222