[INFO] fetching crate mdbook-docslab 0.1.0...
[INFO] testing mdbook-docslab-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[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 c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.10.0
[INFO] [stderr]   Downloaded data-encoding v2.5.0
[INFO] [stderr]   Downloaded tokio-tungstenite v0.20.1
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[INFO] [stderr]   Downloaded clap_complete v4.5.1
[INFO] [stderr]   Downloaded anyhow v1.0.81
[INFO] [stderr]   Downloaded strsim v0.11.0
[INFO] [stderr]   Downloaded pest v2.7.8
[INFO] [stderr]   Downloaded pulldown-cmark v0.10.0
[INFO] [stderr]   Downloaded h2 v0.3.25
[INFO] [stderr]   Downloaded clap v4.5.4
[INFO] [stderr]   Downloaded syn v2.0.57
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[INFO] [stderr]   Downloaded pest_generator v2.7.8
[INFO] [stderr]   Downloaded tungstenite v0.20.1
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.2
[INFO] [stderr]   Downloaded opener v0.6.1
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90501839e539c911e8b4fb7f0f8ca8ad2b59ee45b03b1536dbbb4d79e55f873c
[INFO] running `Command { std: "docker" "start" "-a" "90501839e539c911e8b4fb7f0f8ca8ad2b59ee45b03b1536dbbb4d79e55f873c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90501839e539c911e8b4fb7f0f8ca8ad2b59ee45b03b1536dbbb4d79e55f873c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90501839e539c911e8b4fb7f0f8ca8ad2b59ee45b03b1536dbbb4d79e55f873c", kill_on_drop: false }`
[INFO] [stdout] 90501839e539c911e8b4fb7f0f8ca8ad2b59ee45b03b1536dbbb4d79e55f873c
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc2064539f30b3bbb36515e58047195be560a095f95dfcd1b15b5cb009d928d8
[INFO] running `Command { std: "docker" "start" "-a" "cc2064539f30b3bbb36515e58047195be560a095f95dfcd1b15b5cb009d928d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
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[INFO] [stderr]    Compiling inotify-sys v0.1.5
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[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling strsim v0.11.0
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling filetime v0.2.23
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling pulldown-cmark v0.10.0
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[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling headers v0.3.9
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling notify v6.1.1
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.10.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling pulldown-cmark v0.12.2
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling winnow v0.6.24
[INFO] [stderr]    Compiling chrono v0.4.37
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling topological-sort v0.2.2
[INFO] [stderr]    Compiling pathdiff v0.2.1
[INFO] [stderr]    Compiling notify-debouncer-mini v0.4.1
[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 regex v1.10.4
[INFO] [stderr]    Compiling bstr v1.9.1
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling env_filter v0.1.0
[INFO] [stderr]    Compiling pest v2.7.8
[INFO] [stderr]    Compiling tungstenite v0.20.1
[INFO] [stderr]    Compiling env_logger v0.11.3
[INFO] [stderr]    Compiling globset v0.4.14
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling opener v0.6.1
[INFO] [stderr]    Compiling ignore v0.4.22
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling clap_complete v4.5.1
[INFO] [stderr]    Compiling pest_meta v2.7.8
[INFO] [stderr]    Compiling html5ever v0.26.0
[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: 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] [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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "cc2064539f30b3bbb36515e58047195be560a095f95dfcd1b15b5cb009d928d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2064539f30b3bbb36515e58047195be560a095f95dfcd1b15b5cb009d928d8", kill_on_drop: false }`
[INFO] [stdout] cc2064539f30b3bbb36515e58047195be560a095f95dfcd1b15b5cb009d928d8
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 333ff38d5fe34cab85693ebbd43f5edb90a7928fb81dcba6224c344708c828ba
[INFO] running `Command { std: "docker" "start" "-a" "333ff38d5fe34cab85693ebbd43f5edb90a7928fb81dcba6224c344708c828ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdbook-docslab v0.1.0 (/opt/rustwide/workdir)
[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] [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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "333ff38d5fe34cab85693ebbd43f5edb90a7928fb81dcba6224c344708c828ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333ff38d5fe34cab85693ebbd43f5edb90a7928fb81dcba6224c344708c828ba", kill_on_drop: false }`
[INFO] [stdout] 333ff38d5fe34cab85693ebbd43f5edb90a7928fb81dcba6224c344708c828ba
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2a378307c87cd200d2e8d1cb44a3de921c233abdad0079e96bd1d14797086f72
[INFO] running `Command { std: "docker" "start" "-a" "2a378307c87cd200d2e8d1cb44a3de921c233abdad0079e96bd1d14797086f72", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:46
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn run(&self, ctx: &PreprocessorContext, mut book: Book) -> Result<Book, Error> {
[INFO] [stderr]    |                                              ----^^^^
[INFO] [stderr]    |                                              |
[INFO] [stderr]    |                                              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/main.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn run(&self, ctx: &PreprocessorContext, mut book: Book) -> Result<Book, Error> {
[INFO] [stderr]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mdbook-docslab` (bin "mdbook-docslab" test) generated 2 warnings (run `cargo fix --bin "mdbook-docslab" -p mdbook-docslab --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mdbook_docslab-3ba289cf963afee5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2a378307c87cd200d2e8d1cb44a3de921c233abdad0079e96bd1d14797086f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a378307c87cd200d2e8d1cb44a3de921c233abdad0079e96bd1d14797086f72", kill_on_drop: false }`
[INFO] [stdout] 2a378307c87cd200d2e8d1cb44a3de921c233abdad0079e96bd1d14797086f72