[INFO] fetching crate pdfutil 0.4.0...
[INFO] checking pdfutil-0.4.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate pdfutil 0.4.0 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate pdfutil 0.4.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pdfutil 0.4.0
[INFO] finished tweaking crates.io crate pdfutil 0.4.0
[INFO] tweaked toml for crates.io crate pdfutil 0.4.0 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate crates.io crate pdfutil 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pom v3.2.0
[INFO] [stderr]   Downloaded lopdf v0.26.0
[INFO] [stderr]   Downloaded syn v1.0.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd95d767a902d2213905c1874c74678e1cc359754cd9abcb798ee7a8fa6e9fa6
[INFO] running `Command { std: "docker" "start" "-a" "cd95d767a902d2213905c1874c74678e1cc359754cd9abcb798ee7a8fa6e9fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd95d767a902d2213905c1874c74678e1cc359754cd9abcb798ee7a8fa6e9fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd95d767a902d2213905c1874c74678e1cc359754cd9abcb798ee7a8fa6e9fa6", kill_on_drop: false }`
[INFO] [stdout] cd95d767a902d2213905c1874c74678e1cc359754cd9abcb798ee7a8fa6e9fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 429f34327fbfc41eee113bb12605b1bbc51ea32e0e55d4f6e605cd1975bd7bb5
[INFO] running `Command { std: "docker" "start" "-a" "429f34327fbfc41eee113bb12605b1bbc51ea32e0e55d4f6e605cd1975bd7bb5", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
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[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking pom v3.2.0
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[INFO] [stderr]     Checking thread_local v1.0.1
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[INFO] [stderr]    Compiling standback v0.2.11
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[INFO] [stderr]    Compiling num-traits v0.2.12
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[INFO] [stderr]    Compiling num-integer v0.1.43
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[INFO] [stderr]    Compiling quote v1.0.7
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[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking lopdf v0.26.0
[INFO] [stderr]     Checking pdfutil v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:119:7
[INFO] [stdout]     |
[INFO] [stdout] 119 |                         doc.replace_text(page, words[0], words[1]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:119:7
[INFO] [stdout]     |
[INFO] [stdout] 119 |                         doc.replace_text(page, words[0], words[1]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.85s
[INFO] running `Command { std: "docker" "inspect" "429f34327fbfc41eee113bb12605b1bbc51ea32e0e55d4f6e605cd1975bd7bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "429f34327fbfc41eee113bb12605b1bbc51ea32e0e55d4f6e605cd1975bd7bb5", kill_on_drop: false }`
[INFO] [stdout] 429f34327fbfc41eee113bb12605b1bbc51ea32e0e55d4f6e605cd1975bd7bb5