[INFO] fetching crate powerset-enum-attr 0.1.0...
[INFO] building powerset-enum-attr-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate powerset-enum-attr 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate powerset-enum-attr 0.1.0
[INFO] finished tweaking crates.io crate powerset-enum-attr 0.1.0
[INFO] tweaked toml for crates.io crate powerset-enum-attr 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate powerset-enum-attr 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (available: v1.0.101)
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.40)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df3e424ead5e542c81b8c6ec6ebfaf16101d44f2730c1064d9cb1b1d59bdcafc
[INFO] running `Command { std: "docker" "start" "-a" "df3e424ead5e542c81b8c6ec6ebfaf16101d44f2730c1064d9cb1b1d59bdcafc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df3e424ead5e542c81b8c6ec6ebfaf16101d44f2730c1064d9cb1b1d59bdcafc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3e424ead5e542c81b8c6ec6ebfaf16101d44f2730c1064d9cb1b1d59bdcafc", kill_on_drop: false }`
[INFO] [stdout] df3e424ead5e542c81b8c6ec6ebfaf16101d44f2730c1064d9cb1b1d59bdcafc
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffeafd56b81e4b12fa48c04a191be4ca2eadc2704af7e8e76be1dee7be775423
[INFO] running `Command { std: "docker" "start" "-a" "ffeafd56b81e4b12fa48c04a191be4ca2eadc2704af7e8e76be1dee7be775423", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling powerset-enum-attr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `comma` is never read
[INFO] [stdout]  --> src/powerset_macro_impl.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PowersetMacroInput {
[INFO] [stdout]   |            ------------------ field in this struct
[INFO] [stdout] 8 |     empty_powerset: syn::Type,
[INFO] [stdout] 9 |     comma: Option<syn::token::Comma>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PowersetMacroInput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.61s
[INFO] running `Command { std: "docker" "inspect" "ffeafd56b81e4b12fa48c04a191be4ca2eadc2704af7e8e76be1dee7be775423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffeafd56b81e4b12fa48c04a191be4ca2eadc2704af7e8e76be1dee7be775423", kill_on_drop: false }`
[INFO] [stdout] ffeafd56b81e4b12fa48c04a191be4ca2eadc2704af7e8e76be1dee7be775423
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e3b62d526a8334c83e8bc5fd1a2c528d8d3fcd6079b18491b2daefaa91aed0f
[INFO] running `Command { std: "docker" "start" "-a" "1e3b62d526a8334c83e8bc5fd1a2c528d8d3fcd6079b18491b2daefaa91aed0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling powerset-enum-attr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `comma` is never read
[INFO] [stdout]  --> src/powerset_macro_impl.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PowersetMacroInput {
[INFO] [stdout]   |            ------------------ field in this struct
[INFO] [stdout] 8 |     empty_powerset: syn::Type,
[INFO] [stdout] 9 |     comma: Option<syn::token::Comma>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PowersetMacroInput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comma` is never read
[INFO] [stdout]  --> src/powerset_macro_impl.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PowersetMacroInput {
[INFO] [stdout]   |            ------------------ field in this struct
[INFO] [stdout] 8 |     empty_powerset: syn::Type,
[INFO] [stdout] 9 |     comma: Option<syn::token::Comma>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PowersetMacroInput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "1e3b62d526a8334c83e8bc5fd1a2c528d8d3fcd6079b18491b2daefaa91aed0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e3b62d526a8334c83e8bc5fd1a2c528d8d3fcd6079b18491b2daefaa91aed0f", kill_on_drop: false }`
[INFO] [stdout] 1e3b62d526a8334c83e8bc5fd1a2c528d8d3fcd6079b18491b2daefaa91aed0f