[INFO] fetching crate packtool-macro 0.3.0...
[INFO] checking packtool-macro-0.3.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate packtool-macro 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate packtool-macro 0.3.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate packtool-macro 0.3.0
[INFO] finished tweaking crates.io crate packtool-macro 0.3.0
[INFO] tweaked toml for crates.io crate packtool-macro 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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 5 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff472387909d308cc1a4aad5060092722a1e956f00ab4e8f9748c6512c813b90
[INFO] running `Command { std: "docker" "start" "-a" "ff472387909d308cc1a4aad5060092722a1e956f00ab4e8f9748c6512c813b90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff472387909d308cc1a4aad5060092722a1e956f00ab4e8f9748c6512c813b90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff472387909d308cc1a4aad5060092722a1e956f00ab4e8f9748c6512c813b90", kill_on_drop: false }`
[INFO] [stdout] ff472387909d308cc1a4aad5060092722a1e956f00ab4e8f9748c6512c813b90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7ea7fba00b8a62d70844b49807304f67330bd0f27b96ef319c031f3ec8839c7
[INFO] running `Command { std: "docker" "start" "-a" "e7ea7fba00b8a62d70844b49807304f67330bd0f27b96ef319c031f3ec8839c7", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking proc-macro2 v1.0.86
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking packtool-macro v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `attributes` is never read
[INFO] [stdout]   --> src/ast/packed_enum.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct PackedVariant {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 16 |     pub attributes: PackedAttributes,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attributes` is never read
[INFO] [stdout]   --> src/ast/packed_enum.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct PackedVariant {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 16 |     pub attributes: PackedAttributes,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "e7ea7fba00b8a62d70844b49807304f67330bd0f27b96ef319c031f3ec8839c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ea7fba00b8a62d70844b49807304f67330bd0f27b96ef319c031f3ec8839c7", kill_on_drop: false }`
[INFO] [stdout] e7ea7fba00b8a62d70844b49807304f67330bd0f27b96ef319c031f3ec8839c7