[INFO] cloning repository https://github.com/tortechnocom/rust_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tortechnocom/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftortechnocom%2Frust_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftortechnocom%2Frust_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afd0bb399466ab34fb3213921266d97202ac8a76
[INFO] testing tortechnocom/rust_learning against 1.64.0 for beta-1.65-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftortechnocom%2Frust_learning" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tortechnocom/rust_learning on toolchain 1.64.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tortechnocom/rust_learning
[INFO] finished tweaking git repo https://github.com/tortechnocom/rust_learning
[INFO] tweaked toml for git repo https://github.com/tortechnocom/rust_learning written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/tortechnocom/rust_learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83dc8be30c326e3d735cf98d5f127875a21ce715b2d3cbe418ddac64808ff733
[INFO] running `Command { std: "docker" "start" "-a" "83dc8be30c326e3d735cf98d5f127875a21ce715b2d3cbe418ddac64808ff733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83dc8be30c326e3d735cf98d5f127875a21ce715b2d3cbe418ddac64808ff733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83dc8be30c326e3d735cf98d5f127875a21ce715b2d3cbe418ddac64808ff733", kill_on_drop: false }`
[INFO] [stdout] 83dc8be30c326e3d735cf98d5f127875a21ce715b2d3cbe418ddac64808ff733
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bcb1d2d6182f9c9f0154289cdd533b6184b0cb712d83bdaf9cf2084b391edb2
[INFO] running `Command { std: "docker" "start" "-a" "1bcb1d2d6182f9c9f0154289cdd533b6184b0cb712d83bdaf9cf2084b391edb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let y = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "1bcb1d2d6182f9c9f0154289cdd533b6184b0cb712d83bdaf9cf2084b391edb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bcb1d2d6182f9c9f0154289cdd533b6184b0cb712d83bdaf9cf2084b391edb2", kill_on_drop: false }`
[INFO] [stdout] 1bcb1d2d6182f9c9f0154289cdd533b6184b0cb712d83bdaf9cf2084b391edb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89220e84af5e55ae5a6df1fe8090adcf3cc339a787c58fafe71dea0e8545129e
[INFO] running `Command { std: "docker" "start" "-a" "89220e84af5e55ae5a6df1fe8090adcf3cc339a787c58fafe71dea0e8545129e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let y = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "89220e84af5e55ae5a6df1fe8090adcf3cc339a787c58fafe71dea0e8545129e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89220e84af5e55ae5a6df1fe8090adcf3cc339a787c58fafe71dea0e8545129e", kill_on_drop: false }`
[INFO] [stdout] 89220e84af5e55ae5a6df1fe8090adcf3cc339a787c58fafe71dea0e8545129e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 547dcd1f1fa4ee4c685177352d7f4cd4a89daaf6a28f1d86ab60e9b1058c4b25
[INFO] running `Command { std: "docker" "start" "-a" "547dcd1f1fa4ee4c685177352d7f4cd4a89daaf6a28f1d86ab60e9b1058c4b25", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let y = 5;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_learning` (bin "rust_learning" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learning-93e39b2d09d69a70)
[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" "547dcd1f1fa4ee4c685177352d7f4cd4a89daaf6a28f1d86ab60e9b1058c4b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547dcd1f1fa4ee4c685177352d7f4cd4a89daaf6a28f1d86ab60e9b1058c4b25", kill_on_drop: false }`
[INFO] [stdout] 547dcd1f1fa4ee4c685177352d7f4cd4a89daaf6a28f1d86ab60e9b1058c4b25