[INFO] cloning repository https://github.com/jhalucky/walking-down-through-the-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jhalucky/walking-down-through-the-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhalucky%2Fwalking-down-through-the-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhalucky%2Fwalking-down-through-the-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 776d240d6851669db5938b779311310a06867698
[INFO] testing jhalucky/walking-down-through-the-Rust against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhalucky%2Fwalking-down-through-the-Rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jhalucky/walking-down-through-the-Rust
[INFO] finished tweaking git repo https://github.com/jhalucky/walking-down-through-the-Rust
[INFO] tweaked toml for git repo https://github.com/jhalucky/walking-down-through-the-Rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jhalucky/walking-down-through-the-Rust on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jhalucky/walking-down-through-the-Rust 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f9c0fd00bb5b2b25ddf7a6c99c15df9cbc3d4dd49fbb805d29d5eccb63c9564
[INFO] running `Command { std: "docker" "start" "-a" "7f9c0fd00bb5b2b25ddf7a6c99c15df9cbc3d4dd49fbb805d29d5eccb63c9564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f9c0fd00bb5b2b25ddf7a6c99c15df9cbc3d4dd49fbb805d29d5eccb63c9564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f9c0fd00bb5b2b25ddf7a6c99c15df9cbc3d4dd49fbb805d29d5eccb63c9564", kill_on_drop: false }`
[INFO] [stdout] 7f9c0fd00bb5b2b25ddf7a6c99c15df9cbc3d4dd49fbb805d29d5eccb63c9564
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 824853c90d18913d1cf162df4b7ef43cdb8101fd2f8bc00b0c87e917e2b9ad43
[INFO] running `Command { std: "docker" "start" "-a" "824853c90d18913d1cf162df4b7ef43cdb8101fd2f8bc00b0c87e917e2b9ad43", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "824853c90d18913d1cf162df4b7ef43cdb8101fd2f8bc00b0c87e917e2b9ad43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824853c90d18913d1cf162df4b7ef43cdb8101fd2f8bc00b0c87e917e2b9ad43", kill_on_drop: false }`
[INFO] [stdout] 824853c90d18913d1cf162df4b7ef43cdb8101fd2f8bc00b0c87e917e2b9ad43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c8887467f2c6b808324b06dcf3505b4824e254e51aaa0169bd3118d50e9e76d
[INFO] running `Command { std: "docker" "start" "-a" "5c8887467f2c6b808324b06dcf3505b4824e254e51aaa0169bd3118d50e9e76d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0382]: borrow of moved value: `s1`
[INFO] [stdout]  --> examples/ownership.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let s1 = String::from("hello"); 
[INFO] [stdout]   |         -- move occurs because `s1` has type `String`, which does not implement the `Copy` trait
[INFO] [stdout] 3 |     let s2 = s1; 
[INFO] [stdout]   |              -- value moved here
[INFO] [stdout] 4 |     println!("{}", s1); // This line will cause an error 
[INFO] [stdout]   |                    ^^ value borrowed here after move
[INFO] [stdout]   |
[INFO] [stdout] help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s2 = s1.clone(); 
[INFO] [stdout]   |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]  --> examples/ownership.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s2 = s1; 
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust` (example "ownership") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5c8887467f2c6b808324b06dcf3505b4824e254e51aaa0169bd3118d50e9e76d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c8887467f2c6b808324b06dcf3505b4824e254e51aaa0169bd3118d50e9e76d", kill_on_drop: false }`
[INFO] [stdout] 5c8887467f2c6b808324b06dcf3505b4824e254e51aaa0169bd3118d50e9e76d