[INFO] fetching crate guestfs 0.1.0-compat1.40.0...
[INFO] checking guestfs-0.1.0-compat1.40.0 against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] extracting crate guestfs 0.1.0-compat1.40.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate guestfs 0.1.0-compat1.40.0
[INFO] finished tweaking crates.io crate guestfs 0.1.0-compat1.40.0
[INFO] tweaked toml for crates.io crate guestfs 0.1.0-compat1.40.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate guestfs 0.1.0-compat1.40.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 280deec165542a7e67269af2f2fc56f64c178d0e57220974056da6550aa559c8
[INFO] running `Command { std: "docker" "start" "-a" "280deec165542a7e67269af2f2fc56f64c178d0e57220974056da6550aa559c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "280deec165542a7e67269af2f2fc56f64c178d0e57220974056da6550aa559c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "280deec165542a7e67269af2f2fc56f64c178d0e57220974056da6550aa559c8", kill_on_drop: false }`
[INFO] [stdout] 280deec165542a7e67269af2f2fc56f64c178d0e57220974056da6550aa559c8
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c763f61430319a396f535a7391e58423fa1abcde4a2fb25f274bca37f20e053c
[INFO] running `Command { std: "docker" "start" "-a" "c763f61430319a396f535a7391e58423fa1abcde4a2fb25f274bca37f20e053c", kill_on_drop: false }`
[INFO] [stderr]     Checking guestfs v0.1.0-compat1.40.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `operation`, `message`, and `errno` are never read
[INFO] [stdout]   --> src/error.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct APIError {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 35 |     operation: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 36 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 37 |     errno: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `APIError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `operation`, `message`, and `errno` are never read
[INFO] [stdout]   --> src/error.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct APIError {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 35 |     operation: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 36 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 37 |     errno: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `APIError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaU1eT8x"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guestfs` (lib) 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" "c763f61430319a396f535a7391e58423fa1abcde4a2fb25f274bca37f20e053c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c763f61430319a396f535a7391e58423fa1abcde4a2fb25f274bca37f20e053c", kill_on_drop: false }`
[INFO] [stdout] c763f61430319a396f535a7391e58423fa1abcde4a2fb25f274bca37f20e053c