[INFO] fetching crate displaythis-impl 1.0.23...
[INFO] checking displaythis-impl-1.0.23 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate displaythis-impl 1.0.23 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate displaythis-impl 1.0.23 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 displaythis-impl 1.0.23
[INFO] finished tweaking crates.io crate displaythis-impl 1.0.23
[INFO] tweaked toml for crates.io crate displaythis-impl 1.0.23 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 446c34dd9aa8fba58e526b43a41f795aa57b7de02447957c19add73eef322902
[INFO] running `Command { std: "docker" "start" "-a" "446c34dd9aa8fba58e526b43a41f795aa57b7de02447957c19add73eef322902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "446c34dd9aa8fba58e526b43a41f795aa57b7de02447957c19add73eef322902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446c34dd9aa8fba58e526b43a41f795aa57b7de02447957c19add73eef322902", kill_on_drop: false }`
[INFO] [stdout] 446c34dd9aa8fba58e526b43a41f795aa57b7de02447957c19add73eef322902
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7dec98eb657356dc26e26342c985d452dd37e22ffb958aea302f7d3f94ecc85
[INFO] running `Command { std: "docker" "start" "-a" "f7dec98eb657356dc26e26342c985d452dd37e22ffb958aea302f7d3f94ecc85", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking displaythis-impl v1.0.23 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Struct<'a> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 14 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Struct<'a> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 14 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Enum<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 22 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `original` and `ty` are never read
[INFO] [stdout]   --> src/ast.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Field<'a> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 37 |     pub original: &'a syn::Field,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub ty: &'a Type,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Enum<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 22 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `original` and `ty` are never read
[INFO] [stdout]   --> src/ast.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Field<'a> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 37 |     pub original: &'a syn::Field,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub ty: &'a Type,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "f7dec98eb657356dc26e26342c985d452dd37e22ffb958aea302f7d3f94ecc85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7dec98eb657356dc26e26342c985d452dd37e22ffb958aea302f7d3f94ecc85", kill_on_drop: false }`
[INFO] [stdout] f7dec98eb657356dc26e26342c985d452dd37e22ffb958aea302f7d3f94ecc85