[INFO] updating cached repository https://github.com/tonis2/exercising-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a012590ccfd515f730b8fa48e07737f6bfdf95a1
[INFO] testing tonis2/exercising-rust against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonis2%2Fexercising-rust" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tonis2/exercising-rust on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tonis2/exercising-rust
[INFO] finished tweaking git repo https://github.com/tonis2/exercising-rust
[INFO] tweaked toml for git repo https://github.com/tonis2/exercising-rust written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/tonis2/exercising-rust already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 26251cfdc43a317a6490f423da6398aa9c96a44618796086d4ae7a05d6fa9594
[INFO] running `"docker" "start" "-a" "26251cfdc43a317a6490f423da6398aa9c96a44618796086d4ae7a05d6fa9594"`
[INFO] [stderr]    Compiling start v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let c = pointer::pointer::CustomSmartPointer { data: String::from("my stuff") };
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let d = pointer::pointer::CustomSmartPointer { data: String::from("other stuff") };
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `"docker" "inspect" "26251cfdc43a317a6490f423da6398aa9c96a44618796086d4ae7a05d6fa9594"`
[INFO] running `"docker" "rm" "-f" "26251cfdc43a317a6490f423da6398aa9c96a44618796086d4ae7a05d6fa9594"`
[INFO] [stdout] 26251cfdc43a317a6490f423da6398aa9c96a44618796086d4ae7a05d6fa9594
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f6ab4bd211598ee1a069a5b6a5168df1e2647c0a4279ad0be9d75c88fef5c941
[INFO] running `"docker" "start" "-a" "f6ab4bd211598ee1a069a5b6a5168df1e2647c0a4279ad0be9d75c88fef5c941"`
[INFO] [stderr]    Compiling start v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let c = pointer::pointer::CustomSmartPointer { data: String::from("my stuff") };
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let d = pointer::pointer::CustomSmartPointer { data: String::from("other stuff") };
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "f6ab4bd211598ee1a069a5b6a5168df1e2647c0a4279ad0be9d75c88fef5c941"`
[INFO] running `"docker" "rm" "-f" "f6ab4bd211598ee1a069a5b6a5168df1e2647c0a4279ad0be9d75c88fef5c941"`
[INFO] [stdout] f6ab4bd211598ee1a069a5b6a5168df1e2647c0a4279ad0be9d75c88fef5c941
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 91d0c21f2fb34082f51d093a3a7ff14733650f2e1e8f41fb30db689eb3b92edd
[INFO] running `"docker" "start" "-a" "91d0c21f2fb34082f51d093a3a7ff14733650f2e1e8f41fb30db689eb3b92edd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/start-bbb5d02c0c3d9dc2
[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" "91d0c21f2fb34082f51d093a3a7ff14733650f2e1e8f41fb30db689eb3b92edd"`
[INFO] running `"docker" "rm" "-f" "91d0c21f2fb34082f51d093a3a7ff14733650f2e1e8f41fb30db689eb3b92edd"`
[INFO] [stdout] 91d0c21f2fb34082f51d093a3a7ff14733650f2e1e8f41fb30db689eb3b92edd