[INFO] updating cached repository dangerousplay/opa-rust-jvm-tests
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dangerousplay/opa-rust-jvm-tests
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dangerousplay/opa-rust-jvm-tests" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/dangerousplay/opa-rust-jvm-tests"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/dangerousplay/opa-rust-jvm-tests'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dangerousplay/opa-rust-jvm-tests" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/dangerousplay/opa-rust-jvm-tests"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/dangerousplay/opa-rust-jvm-tests'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e4cdd58ee2233e4b9fbc7f44f595a27e8b8d23eb
[INFO] sha for GitHub repo dangerousplay/opa-rust-jvm-tests: e4cdd58ee2233e4b9fbc7f44f595a27e8b8d23eb
[INFO] validating manifest of dangerousplay/opa-rust-jvm-tests on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dangerousplay/opa-rust-jvm-tests on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dangerousplay/opa-rust-jvm-tests
[INFO] finished frobbing dangerousplay/opa-rust-jvm-tests
[INFO] frobbed toml for dangerousplay/opa-rust-jvm-tests written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/dangerousplay/opa-rust-jvm-tests/Cargo.toml
[INFO] started frobbing dangerousplay/opa-rust-jvm-tests
[INFO] finished frobbing dangerousplay/opa-rust-jvm-tests
[INFO] frobbed toml for dangerousplay/opa-rust-jvm-tests written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/dangerousplay/opa-rust-jvm-tests/Cargo.toml
[INFO] crate dangerousplay/opa-rust-jvm-tests already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dangerousplay/opa-rust-jvm-tests against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-4/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/dangerousplay/opa-rust-jvm-tests:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 51448ff8e51d1393f1fd4f6d01ff8dec46ffbe61532d7fdc36936cc54101270e
[INFO] running `"docker" "start" "-a" "51448ff8e51d1393f1fd4f6d01ff8dec46ffbe61532d7fdc36936cc54101270e"`
[INFO] [stderr]    Compiling syn v0.15.37
[INFO] [stderr]     Checking atomic v0.4.5
[INFO] [stderr]    Compiling backtrace v0.3.31
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking quote v0.6.12
[INFO] [stderr]     Checking color-backtrace v0.2.0
[INFO] [stderr]     Checking hdrhistogram v6.2.0
[INFO] [stderr]    Compiling derive_utils v0.6.3
[INFO] [stderr]    Compiling auto_enums_core v0.4.1
[INFO] [stderr]    Compiling auto_enums_derive v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling auto_enums v0.4.1
[INFO] [stderr]    Compiling synattra v0.1.1
[INFO] [stderr]     Checking aspect-weave v0.1.1
[INFO] [stderr]     Checking aspect v0.1.1
[INFO] [stderr]    Compiling metered-macro v0.2.0
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking metered v0.2.1
[INFO] [stderr]     Checking metrics-actix-poc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let x = unsafe { &**bo };
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let x = unsafe { &**bo };
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `"docker" "inspect" "51448ff8e51d1393f1fd4f6d01ff8dec46ffbe61532d7fdc36936cc54101270e"`
[INFO] running `"docker" "rm" "-f" "51448ff8e51d1393f1fd4f6d01ff8dec46ffbe61532d7fdc36936cc54101270e"`
[INFO] [stdout] 51448ff8e51d1393f1fd4f6d01ff8dec46ffbe61532d7fdc36936cc54101270e