[INFO] fetching crate powerset-enum-attr 0.1.0...
[INFO] testing powerset-enum-attr-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[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 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "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: v1.0.106)
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.45)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba589287cc882e27594d1e10082a9f0d477bf2ced00b20e9051ebf478376c6da
[INFO] running `Command { std: "docker" "start" "-a" "ba589287cc882e27594d1e10082a9f0d477bf2ced00b20e9051ebf478376c6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba589287cc882e27594d1e10082a9f0d477bf2ced00b20e9051ebf478376c6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba589287cc882e27594d1e10082a9f0d477bf2ced00b20e9051ebf478376c6da", kill_on_drop: false }`
[INFO] [stdout] ba589287cc882e27594d1e10082a9f0d477bf2ced00b20e9051ebf478376c6da
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d1eada05cd6d7d582b26369a3d5b894866232c9ab42630a77a61346a0974ec2
[INFO] running `Command { std: "docker" "start" "-a" "1d1eada05cd6d7d582b26369a3d5b894866232c9ab42630a77a61346a0974ec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[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 6.75s
[INFO] running `Command { std: "docker" "inspect" "1d1eada05cd6d7d582b26369a3d5b894866232c9ab42630a77a61346a0974ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d1eada05cd6d7d582b26369a3d5b894866232c9ab42630a77a61346a0974ec2", kill_on_drop: false }`
[INFO] [stdout] 1d1eada05cd6d7d582b26369a3d5b894866232c9ab42630a77a61346a0974ec2
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 025a234135b953c5055c7f133d1395a308f92b1a80c6ba682990b8b5d578338d
[INFO] running `Command { std: "docker" "start" "-a" "025a234135b953c5055c7f133d1395a308f92b1a80c6ba682990b8b5d578338d", 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 1.29s
[INFO] running `Command { std: "docker" "inspect" "025a234135b953c5055c7f133d1395a308f92b1a80c6ba682990b8b5d578338d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025a234135b953c5055c7f133d1395a308f92b1a80c6ba682990b8b5d578338d", kill_on_drop: false }`
[INFO] [stdout] 025a234135b953c5055c7f133d1395a308f92b1a80c6ba682990b8b5d578338d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 008bce715daf267792aa8328fd65d7debc9fd1098953916151b36a1ea55b7737
[INFO] running `Command { std: "docker" "start" "-a" "008bce715daf267792aa8328fd65d7debc9fd1098953916151b36a1ea55b7737", kill_on_drop: false }`
[INFO] [stderr] warning: field `comma` is never read
[INFO] [stderr]  --> src/powerset_macro_impl.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct PowersetMacroInput {
[INFO] [stderr]   |            ------------------ field in this struct
[INFO] [stderr] 8 |     empty_powerset: syn::Type,
[INFO] [stderr] 9 |     comma: Option<syn::token::Comma>,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `PowersetMacroInput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `powerset-enum-attr` (lib) generated 1 warning
[INFO] [stderr] warning: `powerset-enum-attr` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/powerset_enum_attr-9bbf54cf3e940230)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests powerset_enum_attr
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - powerset_enum (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "008bce715daf267792aa8328fd65d7debc9fd1098953916151b36a1ea55b7737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008bce715daf267792aa8328fd65d7debc9fd1098953916151b36a1ea55b7737", kill_on_drop: false }`
[INFO] [stdout] 008bce715daf267792aa8328fd65d7debc9fd1098953916151b36a1ea55b7737