[INFO] updating cached repository danielpclark/bench_ruby_ffi_example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/danielpclark/bench_ruby_ffi_example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/danielpclark/bench_ruby_ffi_example" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/danielpclark/bench_ruby_ffi_example"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/danielpclark/bench_ruby_ffi_example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/danielpclark/bench_ruby_ffi_example" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/danielpclark/bench_ruby_ffi_example"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/danielpclark/bench_ruby_ffi_example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f8fae8311f8d69695d428e538201c98ba2c67c2
[INFO] sha for GitHub repo danielpclark/bench_ruby_ffi_example: 2f8fae8311f8d69695d428e538201c98ba2c67c2
[INFO] validating manifest of danielpclark/bench_ruby_ffi_example on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of danielpclark/bench_ruby_ffi_example on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing danielpclark/bench_ruby_ffi_example
[INFO] finished frobbing danielpclark/bench_ruby_ffi_example
[INFO] frobbed toml for danielpclark/bench_ruby_ffi_example written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/danielpclark/bench_ruby_ffi_example/Cargo.toml
[INFO] started frobbing danielpclark/bench_ruby_ffi_example
[INFO] finished frobbing danielpclark/bench_ruby_ffi_example
[INFO] frobbed toml for danielpclark/bench_ruby_ffi_example written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/danielpclark/bench_ruby_ffi_example/Cargo.toml
[INFO] crate danielpclark/bench_ruby_ffi_example has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking danielpclark/bench_ruby_ffi_example against master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-1/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/danielpclark/bench_ruby_ffi_example:/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=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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ed2f5ca4288c23f43a5e5261771d8d8f68466103dbeb3a7b9039c310b08dbb86
[INFO] running `"docker" "start" "-a" "ed2f5ca4288c23f43a5e5261771d8d8f68466103dbeb3a7b9039c310b08dbb86"`
[INFO] [stderr]    Compiling ruby-sys v0.2.20
[INFO] [stderr]     Checking array_tool v0.4.1
[INFO] [stderr]     Checking ruru v0.9.3
[INFO] [stderr]     Checking ffi_example v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self::array_tool::string::Squeeze`
[INFO] [stderr]   --> src/lib.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 |   use self::array_tool::string::Squeeze;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::array_tool::string::Squeeze`
[INFO] [stderr]   --> src/lib.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 |   use self::array_tool::string::Squeeze;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] running `"docker" "inspect" "ed2f5ca4288c23f43a5e5261771d8d8f68466103dbeb3a7b9039c310b08dbb86"`
[INFO] running `"docker" "rm" "-f" "ed2f5ca4288c23f43a5e5261771d8d8f68466103dbeb3a7b9039c310b08dbb86"`
[INFO] [stdout] ed2f5ca4288c23f43a5e5261771d8d8f68466103dbeb3a7b9039c310b08dbb86