[INFO] fetching crate pdf-extract 0.6.2...
[INFO] checking pdf-extract-0.6.2 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate pdf-extract 0.6.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate pdf-extract 0.6.2 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pdf-extract 0.6.2
[INFO] finished tweaking crates.io crate pdf-extract 0.6.2
[INFO] tweaked toml for crates.io crate pdf-extract 0.6.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate pdf-extract 0.6.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0558d2b3eaa97c0f04699bb134d2a9abe018a7b5cd71b27044447b2c7239848c
[INFO] running `"docker" "start" "-a" "0558d2b3eaa97c0f04699bb134d2a9abe018a7b5cd71b27044447b2c7239848c"`
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking pom v3.0.2
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking postscript v0.11.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking adobe-cmap-parser v0.3.3
[INFO] [stderr]     Checking type1-encoding-parser v0.1.0
[INFO] [stderr]     Checking arrayvec v0.4.10
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking euclid v0.20.7
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking flate2 v1.0.3
[INFO] [stderr]     Checking lopdf v0.24.0
[INFO] [stderr]     Checking pdf-extract v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/extract.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     output_doc(&doc, output.as_mut());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.04s
[INFO] running `"docker" "inspect" "0558d2b3eaa97c0f04699bb134d2a9abe018a7b5cd71b27044447b2c7239848c"`
[INFO] running `"docker" "rm" "-f" "0558d2b3eaa97c0f04699bb134d2a9abe018a7b5cd71b27044447b2c7239848c"`
[INFO] [stdout] 0558d2b3eaa97c0f04699bb134d2a9abe018a7b5cd71b27044447b2c7239848c