[INFO] fetching crate rumrust 0.1.0...
[INFO] testing rumrust-0.1.0 against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] extracting crate rumrust 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rumrust 0.1.0 on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rumrust 0.1.0
[INFO] finished tweaking crates.io crate rumrust 0.1.0
[INFO] tweaked toml for crates.io crate rumrust 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b81fe97c2b3c46eded4eea5cf6dfa6aa07b8e5b77ac5704dfca3a991826f1649
[INFO] running `Command { std: "docker" "start" "-a" "b81fe97c2b3c46eded4eea5cf6dfa6aa07b8e5b77ac5704dfca3a991826f1649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b81fe97c2b3c46eded4eea5cf6dfa6aa07b8e5b77ac5704dfca3a991826f1649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b81fe97c2b3c46eded4eea5cf6dfa6aa07b8e5b77ac5704dfca3a991826f1649", kill_on_drop: false }`
[INFO] [stdout] b81fe97c2b3c46eded4eea5cf6dfa6aa07b8e5b77ac5704dfca3a991826f1649
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8fd419de74aea406e4ee04549b5fe038ad9bdc6ef20ce640613dc1e4b254224
[INFO] running `Command { std: "docker" "start" "-a" "a8fd419de74aea406e4ee04549b5fe038ad9bdc6ef20ce640613dc1e4b254224", kill_on_drop: false }`
[INFO] [stderr]    Compiling rumrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/lib.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |         1 => (rem[0] as u32),
[INFO] [stdout]    |              ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 -         1 => (rem[0] as u32),
[INFO] [stdout] 18 +         1 => rem[0] as u32,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `rumrust` (lib); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/414482f6a0d4e7290f614300581a0b55442552a3/bin/rustc --crate-name rumrust --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=277e24d33801b2bf -C extra-filename=-47881b2b22151d7f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "a8fd419de74aea406e4ee04549b5fe038ad9bdc6ef20ce640613dc1e4b254224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8fd419de74aea406e4ee04549b5fe038ad9bdc6ef20ce640613dc1e4b254224", kill_on_drop: false }`
[INFO] [stdout] a8fd419de74aea406e4ee04549b5fe038ad9bdc6ef20ce640613dc1e4b254224