[INFO] fetching crate sample-config-macros 0.2.0...
[INFO] testing sample-config-macros-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate sample-config-macros 0.2.0 into /workspace/builds/worker-2-tc1/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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sample-config-macros 0.2.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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: v2.0.104)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbf32f1e886e681080a01dea3c5470a4e18333bfd97d593a31f716cea565de28
[INFO] running `Command { std: "docker" "start" "-a" "fbf32f1e886e681080a01dea3c5470a4e18333bfd97d593a31f716cea565de28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbf32f1e886e681080a01dea3c5470a4e18333bfd97d593a31f716cea565de28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf32f1e886e681080a01dea3c5470a4e18333bfd97d593a31f716cea565de28", kill_on_drop: false }`
[INFO] [stdout] fbf32f1e886e681080a01dea3c5470a4e18333bfd97d593a31f716cea565de28
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 77a35b930c02425da206a68f75c6c589f1cfe6af872bae27f1bd6503c40c2b07
[INFO] running `Command { std: "docker" "start" "-a" "77a35b930c02425da206a68f75c6c589f1cfe6af872bae27f1bd6503c40c2b07", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.40
[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 3.82s
[INFO] running `Command { std: "docker" "inspect" "77a35b930c02425da206a68f75c6c589f1cfe6af872bae27f1bd6503c40c2b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a35b930c02425da206a68f75c6c589f1cfe6af872bae27f1bd6503c40c2b07", kill_on_drop: false }`
[INFO] [stdout] 77a35b930c02425da206a68f75c6c589f1cfe6af872bae27f1bd6503c40c2b07
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 2be3f46d70cea8619473775a292c88bb87e2f5e4aaea9b969b1c27ef2960283c
[INFO] running `Command { std: "docker" "start" "-a" "2be3f46d70cea8619473775a292c88bb87e2f5e4aaea9b969b1c27ef2960283c", 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: `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: `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 `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "2be3f46d70cea8619473775a292c88bb87e2f5e4aaea9b969b1c27ef2960283c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be3f46d70cea8619473775a292c88bb87e2f5e4aaea9b969b1c27ef2960283c", kill_on_drop: false }`
[INFO] [stdout] 2be3f46d70cea8619473775a292c88bb87e2f5e4aaea9b969b1c27ef2960283c
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] cd9f34261b5186fb96b13375dd74dd9e4705c6f730fa1786c5553670d21f3ade
[INFO] running `Command { std: "docker" "start" "-a" "cd9f34261b5186fb96b13375dd74dd9e4705c6f730fa1786c5553670d21f3ade", 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 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sample_config_macros-92cd071ab83722f7)
[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" "cd9f34261b5186fb96b13375dd74dd9e4705c6f730fa1786c5553670d21f3ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9f34261b5186fb96b13375dd74dd9e4705c6f730fa1786c5553670d21f3ade", kill_on_drop: false }`
[INFO] [stdout] cd9f34261b5186fb96b13375dd74dd9e4705c6f730fa1786c5553670d21f3ade