[INFO] cloning repository https://github.com/Jett59/pdf-text-extractor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jett59/pdf-text-extractor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fpdf-text-extractor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fpdf-text-extractor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff66e07071153d3728beec55d414ba426ed42915
[INFO] checking Jett59/pdf-text-extractor against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fpdf-text-extractor" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jett59/pdf-text-extractor on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jett59/pdf-text-extractor
[INFO] finished tweaking git repo https://github.com/Jett59/pdf-text-extractor
[INFO] tweaked toml for git repo https://github.com/Jett59/pdf-text-extractor written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Jett59/pdf-text-extractor 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time-macros v0.2.17
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.90
[INFO] [stderr]   Downloaded weezl v0.1.8
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.90
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.90
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.90
[INFO] [stderr]   Downloaded time v0.3.32
[INFO] [stderr]   Downloaded js-sys v0.3.67
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.90
[INFO] [stderr]   Downloaded chrono v0.4.33
[INFO] [stderr]   Downloaded rayon v1.8.1
[INFO] [stderr]   Downloaded lopdf v0.32.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2066488f664a5642b3c89be2cdec90d536e4a5fa9b439e23ae6b45efa90aecc0
[INFO] running `Command { std: "docker" "start" "-a" "2066488f664a5642b3c89be2cdec90d536e4a5fa9b439e23ae6b45efa90aecc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2066488f664a5642b3c89be2cdec90d536e4a5fa9b439e23ae6b45efa90aecc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2066488f664a5642b3c89be2cdec90d536e4a5fa9b439e23ae6b45efa90aecc0", kill_on_drop: false }`
[INFO] [stdout] 2066488f664a5642b3c89be2cdec90d536e4a5fa9b439e23ae6b45efa90aecc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99b7478ef2059c9693180ac66ab4ba977e2a5ce96bf6ef86cee231712bd6f284
[INFO] running `Command { std: "docker" "start" "-a" "99b7478ef2059c9693180ac66ab4ba977e2a5ce96bf6ef86cee231712bd6f284", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking iana-time-zone v0.1.59
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking time v0.3.32
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking chrono v0.4.33
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking lopdf v0.32.0
[INFO] [stderr]     Checking rust-pdf-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, BTreeSet},
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, BTreeSet},
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page_number`
[INFO] [stdout]   --> src/main.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |     for (page_number, page_id) in document.get_pages() {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_page_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page_number`
[INFO] [stdout]   --> src/main.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |     for (page_number, page_id) in document.get_pages() {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_page_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `Command { std: "docker" "inspect" "99b7478ef2059c9693180ac66ab4ba977e2a5ce96bf6ef86cee231712bd6f284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b7478ef2059c9693180ac66ab4ba977e2a5ce96bf6ef86cee231712bd6f284", kill_on_drop: false }`
[INFO] [stdout] 99b7478ef2059c9693180ac66ab4ba977e2a5ce96bf6ef86cee231712bd6f284