[INFO] updating cached repository milesgranger/pybind11-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/milesgranger/pybind11-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/milesgranger/pybind11-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/milesgranger/pybind11-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/milesgranger/pybind11-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/milesgranger/pybind11-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/milesgranger/pybind11-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/milesgranger/pybind11-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 696327598b9e9b4f73b9516765dcec852955eabd
[INFO] sha for GitHub repo milesgranger/pybind11-rs: 696327598b9e9b4f73b9516765dcec852955eabd
[INFO] validating manifest of milesgranger/pybind11-rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of milesgranger/pybind11-rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing milesgranger/pybind11-rs
[INFO] finished frobbing milesgranger/pybind11-rs
[INFO] frobbed toml for milesgranger/pybind11-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/milesgranger/pybind11-rs/Cargo.toml
[INFO] started frobbing milesgranger/pybind11-rs
[INFO] finished frobbing milesgranger/pybind11-rs
[INFO] frobbed toml for milesgranger/pybind11-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/milesgranger/pybind11-rs/Cargo.toml
[INFO] crate milesgranger/pybind11-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing milesgranger/pybind11-rs against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/milesgranger/pybind11-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 596f007ebe2778cc4a5de4db9afaabb422ae07fb8841b7810ac3eb72b45fb022
[INFO] running `"docker" "start" "-a" "596f007ebe2778cc4a5de4db9afaabb422ae07fb8841b7810ac3eb72b45fb022"`
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling cbindgen v0.8.3
[INFO] [stderr]    Compiling pybinder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::ffi::CString`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ffi::CString;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `person`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     person: Person
[INFO] [stderr]    |     ^^^^^^ help: consider prefixing with an underscore: `_person`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `"docker" "inspect" "596f007ebe2778cc4a5de4db9afaabb422ae07fb8841b7810ac3eb72b45fb022"`
[INFO] running `"docker" "rm" "-f" "596f007ebe2778cc4a5de4db9afaabb422ae07fb8841b7810ac3eb72b45fb022"`
[INFO] [stdout] 596f007ebe2778cc4a5de4db9afaabb422ae07fb8841b7810ac3eb72b45fb022
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/milesgranger/pybind11-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8be4f86aed088a54eeb6848df656fa71c1a1fd286135207a093edda62b63c69b
[INFO] running `"docker" "start" "-a" "8be4f86aed088a54eeb6848df656fa71c1a1fd286135207a093edda62b63c69b"`
[INFO] [stderr]    Compiling pybinder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::ffi::CString`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ffi::CString;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `person`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     person: Person
[INFO] [stderr]    |     ^^^^^^ help: consider prefixing with an underscore: `_person`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "8be4f86aed088a54eeb6848df656fa71c1a1fd286135207a093edda62b63c69b"`
[INFO] running `"docker" "rm" "-f" "8be4f86aed088a54eeb6848df656fa71c1a1fd286135207a093edda62b63c69b"`
[INFO] [stdout] 8be4f86aed088a54eeb6848df656fa71c1a1fd286135207a093edda62b63c69b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/milesgranger/pybind11-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 37102775cde0eebe75ecbc5faa695b52a429cda2732fc7d2ba5eed9b2e35e487
[INFO] running `"docker" "start" "-a" "37102775cde0eebe75ecbc5faa695b52a429cda2732fc7d2ba5eed9b2e35e487"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pybinder-b735f538aa993e5f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "37102775cde0eebe75ecbc5faa695b52a429cda2732fc7d2ba5eed9b2e35e487"`
[INFO] running `"docker" "rm" "-f" "37102775cde0eebe75ecbc5faa695b52a429cda2732fc7d2ba5eed9b2e35e487"`
[INFO] [stdout] 37102775cde0eebe75ecbc5faa695b52a429cda2732fc7d2ba5eed9b2e35e487