[INFO] fetching crate pdf_structure_viewer 0.1.0...
[INFO] checking pdf_structure_viewer-0.1.0 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate pdf_structure_viewer 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate pdf_structure_viewer 0.1.0
[INFO] finished tweaking crates.io crate pdf_structure_viewer 0.1.0
[INFO] tweaked toml for crates.io crate pdf_structure_viewer 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pdf_structure_viewer 0.1.0 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pdf_structure_viewer 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lopdf v0.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 181c5347d0ff4168df56d850552bf91bb28f656076120a8652bbe2d81dafb18c
[INFO] running `Command { std: "docker" "start" "-a" "181c5347d0ff4168df56d850552bf91bb28f656076120a8652bbe2d81dafb18c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "181c5347d0ff4168df56d850552bf91bb28f656076120a8652bbe2d81dafb18c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181c5347d0ff4168df56d850552bf91bb28f656076120a8652bbe2d81dafb18c", kill_on_drop: false }`
[INFO] [stdout] 181c5347d0ff4168df56d850552bf91bb28f656076120a8652bbe2d81dafb18c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 134fc7d61c03eebbe25b9f101e5f370651f961114cd7753abbbd922ac753d764
[INFO] running `Command { std: "docker" "start" "-a" "134fc7d61c03eebbe25b9f101e5f370651f961114cd7753abbbd922ac753d764", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]     Checking bitvec v0.19.6
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking time v0.2.27
[INFO] [stderr]     Checking lopdf v0.27.0
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking pdf_structure_viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ObjectPrintInfo`
[INFO] [stdout]  --> src/print_tree/mod.rs:9:46
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use pdf_objects::{get_object_print_info, ObjectPrintInfo};
[INFO] [stdout]   |                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ObjectPrintInfo`
[INFO] [stdout]  --> src/print_tree/mod.rs:9:46
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use pdf_objects::{get_object_print_info, ObjectPrintInfo};
[INFO] [stdout]   |                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.2.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 18`
[INFO] running `Command { std: "docker" "inspect" "134fc7d61c03eebbe25b9f101e5f370651f961114cd7753abbbd922ac753d764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "134fc7d61c03eebbe25b9f101e5f370651f961114cd7753abbbd922ac753d764", kill_on_drop: false }`
[INFO] [stdout] 134fc7d61c03eebbe25b9f101e5f370651f961114cd7753abbbd922ac753d764