[INFO] cloning repository https://github.com/roooof/Guessing_Game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roooof/Guessing_Game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froooof%2FGuessing_Game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froooof%2FGuessing_Game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 893823cb3a3a8b27113b47b47442902d144ddf9c
[INFO] checking roooof/Guessing_Game against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froooof%2FGuessing_Game" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/roooof/Guessing_Game
[INFO] finished tweaking git repo https://github.com/roooof/Guessing_Game
[INFO] tweaked toml for git repo https://github.com/roooof/Guessing_Game written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/roooof/Guessing_Game on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/roooof/Guessing_Game 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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e78119660e02c69b917d51cf4cc0213c8056ef16bc1815eb556078a797e3e559
[INFO] running `Command { std: "docker" "start" "-a" "e78119660e02c69b917d51cf4cc0213c8056ef16bc1815eb556078a797e3e559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e78119660e02c69b917d51cf4cc0213c8056ef16bc1815eb556078a797e3e559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78119660e02c69b917d51cf4cc0213c8056ef16bc1815eb556078a797e3e559", kill_on_drop: false }`
[INFO] [stdout] e78119660e02c69b917d51cf4cc0213c8056ef16bc1815eb556078a797e3e559
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e669b5f1a4bac5664d3e387ac227a9a6b30ff22cd2148e4627ce780b56c4d77
[INFO] running `Command { std: "docker" "start" "-a" "3e669b5f1a4bac5664d3e387ac227a9a6b30ff22cd2148e4627ce780b56c4d77", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/main.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Err(err) => break,
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/main.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Err(err) => break,
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guessing_game` (bin "guessing_game" test); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f8f6997469237299c1d60814c7b9828602a1f8e4/bin/rustc --crate-name guessing_game --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=7fd57ec207bf08e8 -C extra-filename=-5bcaf1b14254fe66 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-9c2f548e59198593.rmeta --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `guessing_game` (bin "guessing_game"); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f8f6997469237299c1d60814c7b9828602a1f8e4/bin/rustc --crate-name guessing_game --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=1477113c51932d9a -C extra-filename=-1823d687059df938 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-9c2f548e59198593.rmeta --cap-lints=forbid` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3e669b5f1a4bac5664d3e387ac227a9a6b30ff22cd2148e4627ce780b56c4d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e669b5f1a4bac5664d3e387ac227a9a6b30ff22cd2148e4627ce780b56c4d77", kill_on_drop: false }`
[INFO] [stdout] 3e669b5f1a4bac5664d3e387ac227a9a6b30ff22cd2148e4627ce780b56c4d77