[INFO] fetching crate sample-config-macros 0.2.0...
[INFO] testing sample-config-macros-0.2.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate sample-config-macros 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate sample-config-macros 0.2.0
[INFO] finished tweaking crates.io crate sample-config-macros 0.2.0
[INFO] tweaked toml for crates.io crate sample-config-macros 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sample-config-macros 0.2.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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 syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2eac93f72c8c1a37beee3a44feebeca63b58ab6bd1e77e07ddab914055b0c1a
[INFO] running `Command { std: "docker" "start" "-a" "a2eac93f72c8c1a37beee3a44feebeca63b58ab6bd1e77e07ddab914055b0c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2eac93f72c8c1a37beee3a44feebeca63b58ab6bd1e77e07ddab914055b0c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2eac93f72c8c1a37beee3a44feebeca63b58ab6bd1e77e07ddab914055b0c1a", kill_on_drop: false }`
[INFO] [stdout] a2eac93f72c8c1a37beee3a44feebeca63b58ab6bd1e77e07ddab914055b0c1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcc947d97ddf66212289f1b937b91d6daa3ac051b895b10906cad9f98e0d8a94
[INFO] running `Command { std: "docker" "start" "-a" "fcc947d97ddf66212289f1b937b91d6daa3ac051b895b10906cad9f98e0d8a94", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling sample-config-macros v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `yaml_fields`
[INFO] [stdout]    --> src/derive.rs:114:6
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let yaml_fields = fields.iter().map(FieldData::to_yaml_generator);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yaml_fields`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `json_fields`
[INFO] [stdout]    --> src/derive.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let json_fields = fields.iter().map(FieldData::to_json_generator);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_idents`
[INFO] [stdout]    --> src/derive.rs:160:6
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let variant_idents = data.variants.iter().map(|variant| &variant.ident).collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_idents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_strings`
[INFO] [stdout]    --> src/derive.rs:161:6
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let variant_strings =
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_strings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `Command { std: "docker" "inspect" "fcc947d97ddf66212289f1b937b91d6daa3ac051b895b10906cad9f98e0d8a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc947d97ddf66212289f1b937b91d6daa3ac051b895b10906cad9f98e0d8a94", kill_on_drop: false }`
[INFO] [stdout] fcc947d97ddf66212289f1b937b91d6daa3ac051b895b10906cad9f98e0d8a94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e50ed9217a14f93a0757104c780785d0d086db99ea4b7492fb88cff0425b3464
[INFO] running `Command { std: "docker" "start" "-a" "e50ed9217a14f93a0757104c780785d0d086db99ea4b7492fb88cff0425b3464", kill_on_drop: false }`
[INFO] [stderr]    Compiling sample-config-macros v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `yaml_fields`
[INFO] [stdout]    --> src/derive.rs:114:6
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let yaml_fields = fields.iter().map(FieldData::to_yaml_generator);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yaml_fields`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `json_fields`
[INFO] [stdout]    --> src/derive.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let json_fields = fields.iter().map(FieldData::to_json_generator);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `yaml_fields`
[INFO] [stdout]    --> src/derive.rs:114:6
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let yaml_fields = fields.iter().map(FieldData::to_yaml_generator);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yaml_fields`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `json_fields`
[INFO] [stdout]    --> src/derive.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let json_fields = fields.iter().map(FieldData::to_json_generator);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_idents`
[INFO] [stdout]    --> src/derive.rs:160:6
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let variant_idents = data.variants.iter().map(|variant| &variant.ident).collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_idents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_strings`
[INFO] [stdout]    --> src/derive.rs:161:6
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let variant_strings =
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_strings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_idents`
[INFO] [stdout]    --> src/derive.rs:160:6
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let variant_idents = data.variants.iter().map(|variant| &variant.ident).collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_idents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_strings`
[INFO] [stdout]    --> src/derive.rs:161:6
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let variant_strings =
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_strings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "e50ed9217a14f93a0757104c780785d0d086db99ea4b7492fb88cff0425b3464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50ed9217a14f93a0757104c780785d0d086db99ea4b7492fb88cff0425b3464", kill_on_drop: false }`
[INFO] [stdout] e50ed9217a14f93a0757104c780785d0d086db99ea4b7492fb88cff0425b3464
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa5b4488e498a59e79b11bdf7e1d7fe004a5337b0185acf088a91454dd8fec67
[INFO] running `Command { std: "docker" "start" "-a" "fa5b4488e498a59e79b11bdf7e1d7fe004a5337b0185acf088a91454dd8fec67", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `yaml_fields`
[INFO] [stderr]    --> src/derive.rs:114:6
[INFO] [stderr]     |
[INFO] [stderr] 114 |     let yaml_fields = fields.iter().map(FieldData::to_yaml_generator);
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yaml_fields`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `json_fields`
[INFO] [stderr]    --> src/derive.rs:115:6
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let json_fields = fields.iter().map(FieldData::to_json_generator);
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_fields`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_idents`
[INFO] [stderr]    --> src/derive.rs:160:6
[INFO] [stderr]     |
[INFO] [stderr] 160 |     let variant_idents = data.variants.iter().map(|variant| &variant.ident).collect::<Vec<_>>();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_idents`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_strings`
[INFO] [stderr]    --> src/derive.rs:161:6
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let variant_strings =
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_strings`
[INFO] [stderr] 
[INFO] [stderr] warning: `sample-config-macros` (lib) generated 4 warnings
[INFO] [stderr] warning: `sample-config-macros` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sample_config_macros-f3ef0f1e2e8c4661)
[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 sample_config_macros
[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] running `Command { std: "docker" "inspect" "fa5b4488e498a59e79b11bdf7e1d7fe004a5337b0185acf088a91454dd8fec67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa5b4488e498a59e79b11bdf7e1d7fe004a5337b0185acf088a91454dd8fec67", kill_on_drop: false }`
[INFO] [stdout] fa5b4488e498a59e79b11bdf7e1d7fe004a5337b0185acf088a91454dd8fec67