[INFO] cloning repository https://github.com/razorbacky/return_and_scope
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/razorbacky/return_and_scope" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frazorbacky%2Freturn_and_scope", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frazorbacky%2Freturn_and_scope'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faab58ce622cb3131e5c6aa2de540b064d9f50f4
[INFO] testing razorbacky/return_and_scope against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frazorbacky%2Freturn_and_scope" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/razorbacky/return_and_scope
[INFO] finished tweaking git repo https://github.com/razorbacky/return_and_scope
[INFO] tweaked toml for git repo https://github.com/razorbacky/return_and_scope written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/razorbacky/return_and_scope on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/razorbacky/return_and_scope already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cc8f5d57132d09cb079faf2abb29e91bf5009f882cccb9b6f57edcf25d7c5d1
[INFO] running `Command { std: "docker" "start" "-a" "8cc8f5d57132d09cb079faf2abb29e91bf5009f882cccb9b6f57edcf25d7c5d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cc8f5d57132d09cb079faf2abb29e91bf5009f882cccb9b6f57edcf25d7c5d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc8f5d57132d09cb079faf2abb29e91bf5009f882cccb9b6f57edcf25d7c5d1", kill_on_drop: false }`
[INFO] [stdout] 8cc8f5d57132d09cb079faf2abb29e91bf5009f882cccb9b6f57edcf25d7c5d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b91bc7743ffe43eb00930ea42d5b79764327b1a92239cff26b0aa7cfad784ff1
[INFO] running `Command { std: "docker" "start" "-a" "b91bc7743ffe43eb00930ea42d5b79764327b1a92239cff26b0aa7cfad784ff1", kill_on_drop: false }`
[INFO] [stderr]    Compiling return_and_scope v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s1 = gives_ownership(); // gives_ownership 이 자신의 반환 값을 s1 으로 이동시킨다.
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s3`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let s3 = takes_and_gives_back(s2); //s2는 takes_and_gives_back 으로 이동하는데, 이 함수 또한 자신의 반환 값을 s3로 이동시킨다.
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "b91bc7743ffe43eb00930ea42d5b79764327b1a92239cff26b0aa7cfad784ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91bc7743ffe43eb00930ea42d5b79764327b1a92239cff26b0aa7cfad784ff1", kill_on_drop: false }`
[INFO] [stdout] b91bc7743ffe43eb00930ea42d5b79764327b1a92239cff26b0aa7cfad784ff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 796944896e27c6b725e43622a0267be3e6631a29c4efe26d09542cb516a98860
[INFO] running `Command { std: "docker" "start" "-a" "796944896e27c6b725e43622a0267be3e6631a29c4efe26d09542cb516a98860", kill_on_drop: false }`
[INFO] [stderr]    Compiling return_and_scope v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s1 = gives_ownership(); // gives_ownership 이 자신의 반환 값을 s1 으로 이동시킨다.
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s3`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let s3 = takes_and_gives_back(s2); //s2는 takes_and_gives_back 으로 이동하는데, 이 함수 또한 자신의 반환 값을 s3로 이동시킨다.
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "796944896e27c6b725e43622a0267be3e6631a29c4efe26d09542cb516a98860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796944896e27c6b725e43622a0267be3e6631a29c4efe26d09542cb516a98860", kill_on_drop: false }`
[INFO] [stdout] 796944896e27c6b725e43622a0267be3e6631a29c4efe26d09542cb516a98860
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da49a91e91f97c849d0e7d8fc3f2be57f001e32c876ad58a338f8fb6ddf8b0c0
[INFO] running `Command { std: "docker" "start" "-a" "da49a91e91f97c849d0e7d8fc3f2be57f001e32c876ad58a338f8fb6ddf8b0c0", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s1`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let s1 = gives_ownership(); // gives_ownership 이 자신의 반환 값을 s1 으로 이동시킨다.
[INFO] [stderr]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s3`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let s3 = takes_and_gives_back(s2); //s2는 takes_and_gives_back 으로 이동하는데, 이 함수 또한 자신의 반환 값을 s3로 이동시킨다.
[INFO] [stderr]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s3`
[INFO] [stderr] 
[INFO] [stderr] warning: `return_and_scope` (bin "return_and_scope" test) generated 2 warnings (run `cargo fix --bin "return_and_scope" -p return_and_scope --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/return_and_scope-94f312765a5d3be6)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "da49a91e91f97c849d0e7d8fc3f2be57f001e32c876ad58a338f8fb6ddf8b0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da49a91e91f97c849d0e7d8fc3f2be57f001e32c876ad58a338f8fb6ddf8b0c0", kill_on_drop: false }`
[INFO] [stdout] da49a91e91f97c849d0e7d8fc3f2be57f001e32c876ad58a338f8fb6ddf8b0c0
