[INFO] cloning repository https://github.com/FarrellMuhammadHanau/tutorial8-subscriber
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FarrellMuhammadHanau/tutorial8-subscriber" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarrellMuhammadHanau%2Ftutorial8-subscriber", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarrellMuhammadHanau%2Ftutorial8-subscriber'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 713e39feb92f3964ed694e4e02f26e3a1f00e012
[INFO] building FarrellMuhammadHanau/tutorial8-subscriber against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarrellMuhammadHanau%2Ftutorial8-subscriber" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FarrellMuhammadHanau/tutorial8-subscriber
[INFO] finished tweaking git repo https://github.com/FarrellMuhammadHanau/tutorial8-subscriber
[INFO] tweaked toml for git repo https://github.com/FarrellMuhammadHanau/tutorial8-subscriber written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FarrellMuhammadHanau/tutorial8-subscriber on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FarrellMuhammadHanau/tutorial8-subscriber 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crosstown_bus v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ecfe0a14cfff14e29f2d583dc383559aa310d3aef602d545b623f765fc0446f
[INFO] running `Command { std: "docker" "start" "-a" "0ecfe0a14cfff14e29f2d583dc383559aa310d3aef602d545b623f765fc0446f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ecfe0a14cfff14e29f2d583dc383559aa310d3aef602d545b623f765fc0446f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ecfe0a14cfff14e29f2d583dc383559aa310d3aef602d545b623f765fc0446f", kill_on_drop: false }`
[INFO] [stdout] 0ecfe0a14cfff14e29f2d583dc383559aa310d3aef602d545b623f765fc0446f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 772ea8bd29fdf88ddc31f698aa81901de8bd6e85832d3b2a31462493c46040f0
[INFO] running `Command { std: "docker" "start" "-a" "772ea8bd29fdf88ddc31f698aa81901de8bd6e85832d3b2a31462493c46040f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling crosstown_bus v0.5.3
[INFO] [stderr]    Compiling subscriber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/main.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let now = time::Instant::now();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "772ea8bd29fdf88ddc31f698aa81901de8bd6e85832d3b2a31462493c46040f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "772ea8bd29fdf88ddc31f698aa81901de8bd6e85832d3b2a31462493c46040f0", kill_on_drop: false }`
[INFO] [stdout] 772ea8bd29fdf88ddc31f698aa81901de8bd6e85832d3b2a31462493c46040f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eff77a776f42e8b1bb914ce9a138f52db50441e6a95f8f9e649f7ae2bfdddaa
[INFO] running `Command { std: "docker" "start" "-a" "3eff77a776f42e8b1bb914ce9a138f52db50441e6a95f8f9e649f7ae2bfdddaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling subscriber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/main.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let now = time::Instant::now();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "3eff77a776f42e8b1bb914ce9a138f52db50441e6a95f8f9e649f7ae2bfdddaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eff77a776f42e8b1bb914ce9a138f52db50441e6a95f8f9e649f7ae2bfdddaa", kill_on_drop: false }`
[INFO] [stdout] 3eff77a776f42e8b1bb914ce9a138f52db50441e6a95f8f9e649f7ae2bfdddaa