[INFO] fetching crate alder-derive 0.2.3...
[INFO] checking alder-derive-0.2.3 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate alder-derive 0.2.3 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate alder-derive 0.2.3 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alder-derive 0.2.3
[INFO] finished tweaking crates.io crate alder-derive 0.2.3
[INFO] tweaked toml for crates.io crate alder-derive 0.2.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.10.2 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_core v0.10.2 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_macro v0.10.2 (latest: v0.20.10)
[INFO] [stderr]       Adding strsim v0.9.3 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding unindent v0.1.11 (latest: v0.2.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1a1c138e8638137b2501b29c782f5ac70a8e5ac6c4fe998dcc4b6f9078a593e
[INFO] running `Command { std: "docker" "start" "-a" "e1a1c138e8638137b2501b29c782f5ac70a8e5ac6c4fe998dcc4b6f9078a593e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1a1c138e8638137b2501b29c782f5ac70a8e5ac6c4fe998dcc4b6f9078a593e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a1c138e8638137b2501b29c782f5ac70a8e5ac6c4fe998dcc4b6f9078a593e", kill_on_drop: false }`
[INFO] [stdout] e1a1c138e8638137b2501b29c782f5ac70a8e5ac6c4fe998dcc4b6f9078a593e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bad29bb5c6ff92479a8955dd216b0ba2ec817fc0827c5660f92fc869b519fa9
[INFO] running `Command { std: "docker" "start" "-a" "0bad29bb5c6ff92479a8955dd216b0ba2ec817fc0827c5660f92fc869b519fa9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking darling v0.10.2
[INFO] [stderr]     Checking alder-derive v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `fields` is never read
[INFO] [stdout]   --> src/macro_ast.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct CstVariantReceiver {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 35 |     ident: syn::Ident,
[INFO] [stdout] 36 |     fields: ast::Fields<CstFieldReceiver>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CstVariantReceiver` 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: field `name` is never read
[INFO] [stdout]  --> src/test_case.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TestCase {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TestCase` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fields` is never read
[INFO] [stdout]   --> src/macro_ast.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct CstVariantReceiver {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 35 |     ident: syn::Ident,
[INFO] [stdout] 36 |     fields: ast::Fields<CstFieldReceiver>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CstVariantReceiver` 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: field `name` is never read
[INFO] [stdout]  --> src/test_case.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TestCase {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TestCase` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.21s
[INFO] running `Command { std: "docker" "inspect" "0bad29bb5c6ff92479a8955dd216b0ba2ec817fc0827c5660f92fc869b519fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bad29bb5c6ff92479a8955dd216b0ba2ec817fc0827c5660f92fc869b519fa9", kill_on_drop: false }`
[INFO] [stdout] 0bad29bb5c6ff92479a8955dd216b0ba2ec817fc0827c5660f92fc869b519fa9