[INFO] cloning repository hobofan/extract-references
[INFO] running `"git" "clone" "--bare" "git://github.com/hobofan/extract-references.git" "work/cache/sources/gh/hobofan/extract-references"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/hobofan/extract-references'...
[INFO] running `"git" "clone" "work/cache/sources/gh/hobofan/extract-references" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/hobofan/extract-references"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/hobofan/extract-references'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hobofan/extract-references" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/hobofan/extract-references"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/hobofan/extract-references'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7ebc8d272517e0bc07a043fbb79cf819c1e03f92
[INFO] sha for GitHub repo hobofan/extract-references: 7ebc8d272517e0bc07a043fbb79cf819c1e03f92
[INFO] validating manifest of hobofan/extract-references on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hobofan/extract-references on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hobofan/extract-references
[INFO] finished frobbing hobofan/extract-references
[INFO] frobbed toml for hobofan/extract-references written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/hobofan/extract-references/Cargo.toml
[INFO] started frobbing hobofan/extract-references
[INFO] finished frobbing hobofan/extract-references
[INFO] frobbed toml for hobofan/extract-references written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/hobofan/extract-references/Cargo.toml
[INFO] crate hobofan/extract-references already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded adobe-cmap-parser v0.3.3
[INFO] [stderr]   Downloaded pdf-extract v0.4.6
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hobofan/extract-references against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/hobofan/extract-references:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] be3fa3587df6c02d9108313abee9ddee617dac0e4986a5a9c2756bdc4318dbf6
[INFO] running `"docker" "start" "-a" "be3fa3587df6c02d9108313abee9ddee617dac0e4986a5a9c2756bdc4318dbf6"`
[INFO] [stderr]     Checking adobe-cmap-parser v0.3.3
[INFO] [stderr]     Checking euclid v0.15.6
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking lopdf v0.15.3
[INFO] [stderr]     Checking pdf-extract v0.4.6
[INFO] [stderr]     Checking extract-references v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `reference_item_pattern`
[INFO] [stderr]   --> src/raw_text.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn reference_item_pattern(&self) -> Option<Regex> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `references`
[INFO] [stderr]   --> src/raw_text.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn references(&self) -> Option<Vec<Reference>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.32s
[INFO] running `"docker" "inspect" "be3fa3587df6c02d9108313abee9ddee617dac0e4986a5a9c2756bdc4318dbf6"`
[INFO] running `"docker" "rm" "-f" "be3fa3587df6c02d9108313abee9ddee617dac0e4986a5a9c2756bdc4318dbf6"`
[INFO] [stdout] be3fa3587df6c02d9108313abee9ddee617dac0e4986a5a9c2756bdc4318dbf6