[INFO] fetching crate struct-variant 1.0.2...
[INFO] testing struct-variant-1.0.2 against 1.85.0 for beta-1.86-1
[INFO] extracting crate struct-variant 1.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate struct-variant 1.0.2 on toolchain 1.85.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate struct-variant 1.0.2
[INFO] finished tweaking crates.io crate struct-variant 1.0.2
[INFO] tweaked toml for crates.io crate struct-variant 1.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 39 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.98)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab00cbdb054fff75c464af1a59d0a357470966354c427d56f104b4eac115d9ec
[INFO] running `Command { std: "docker" "start" "-a" "ab00cbdb054fff75c464af1a59d0a357470966354c427d56f104b4eac115d9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab00cbdb054fff75c464af1a59d0a357470966354c427d56f104b4eac115d9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab00cbdb054fff75c464af1a59d0a357470966354c427d56f104b4eac115d9ec", kill_on_drop: false }`
[INFO] [stdout] ab00cbdb054fff75c464af1a59d0a357470966354c427d56f104b4eac115d9ec
[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=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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66a7b836789945be0b75282552374544b0d4d6c356a556d0e13392a72baec282
[INFO] running `Command { std: "docker" "start" "-a" "66a7b836789945be0b75282552374544b0d4d6c356a556d0e13392a72baec282", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.14.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling struct-variant v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `paren_token` is never read
[INFO] [stdout]   --> src/lib.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Field {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 36 |     pub paren_token: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `enum_token` and `brace_token` are never read
[INFO] [stdout]    --> src/lib.rs:120:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | struct VariantEnum {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub enum_token: Token![enum],
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub brace_token: Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.37s
[INFO] running `Command { std: "docker" "inspect" "66a7b836789945be0b75282552374544b0d4d6c356a556d0e13392a72baec282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a7b836789945be0b75282552374544b0d4d6c356a556d0e13392a72baec282", kill_on_drop: false }`
[INFO] [stdout] 66a7b836789945be0b75282552374544b0d4d6c356a556d0e13392a72baec282
[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=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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 235023a9b8aa0e3948d8e24714c8a6e72519f4dd9494125349987edd3c6a9616
[INFO] running `Command { std: "docker" "start" "-a" "235023a9b8aa0e3948d8e24714c8a6e72519f4dd9494125349987edd3c6a9616", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/235023a9b8aa0e3948d8e24714c8a6e72519f4dd9494125349987edd3c6a9616/hosts: no space left on device
[INFO] running `Command { std: "docker" "inspect" "235023a9b8aa0e3948d8e24714c8a6e72519f4dd9494125349987edd3c6a9616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "235023a9b8aa0e3948d8e24714c8a6e72519f4dd9494125349987edd3c6a9616", kill_on_drop: false }`
[INFO] [stdout] 235023a9b8aa0e3948d8e24714c8a6e72519f4dd9494125349987edd3c6a9616