[INFO] fetching crate serialization_derive 0.2.13...
[INFO] building serialization_derive-0.2.13 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate serialization_derive 0.2.13 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate serialization_derive 0.2.13
[INFO] finished tweaking crates.io crate serialization_derive 0.2.13
[INFO] tweaked toml for crates.io crate serialization_derive 0.2.13 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serialization_derive 0.2.13 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serialization_derive 0.2.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b476c1e638d30ada7ef3e4f37baeb451975b6d0800774bee44a365d959241bbb
[INFO] running `Command { std: "docker" "start" "-a" "b476c1e638d30ada7ef3e4f37baeb451975b6d0800774bee44a365d959241bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b476c1e638d30ada7ef3e4f37baeb451975b6d0800774bee44a365d959241bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b476c1e638d30ada7ef3e4f37baeb451975b6d0800774bee44a365d959241bbb", kill_on_drop: false }`
[INFO] [stdout] b476c1e638d30ada7ef3e4f37baeb451975b6d0800774bee44a365d959241bbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e714c54fa150ee2761da874d3f21ede65709cd06db24049f2b740f25f4b9e2d
[INFO] running `Command { std: "docker" "start" "-a" "3e714c54fa150ee2761da874d3f21ede65709cd06db24049f2b740f25f4b9e2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling serialization_derive v0.2.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parse_str`
[INFO] [stdout]  --> src/lib.rs:7:37
[INFO] [stdout]   |
[INFO] [stdout] 7 |     parse_macro_input, parse_quote, parse_str,
[INFO] [stdout]   |                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generic_params_without_bounds_concatted`
[INFO] [stdout]    --> src/lib.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let generic_params_without_bounds_concatted = quote! { #(#generic_params_without_bounds),* };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generic_params_without_bounds_concatted`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:305:5
[INFO] [stdout]     |
[INFO] [stdout] 305 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:658:5
[INFO] [stdout]     |
[INFO] [stdout] 658 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode_tuple` is never used
[INFO] [stdout]    --> src/lib.rs:337:4
[INFO] [stdout]     |
[INFO] [stdout] 337 | fn encode_tuple(
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[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 4.41s
[INFO] running `Command { std: "docker" "inspect" "3e714c54fa150ee2761da874d3f21ede65709cd06db24049f2b740f25f4b9e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e714c54fa150ee2761da874d3f21ede65709cd06db24049f2b740f25f4b9e2d", kill_on_drop: false }`
[INFO] [stdout] 3e714c54fa150ee2761da874d3f21ede65709cd06db24049f2b740f25f4b9e2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8ba4a7b90687f2b385997aa8fbb36994d1d60ec22e59a7919ebe69ba5123044
[INFO] running `Command { std: "docker" "start" "-a" "f8ba4a7b90687f2b385997aa8fbb36994d1d60ec22e59a7919ebe69ba5123044", kill_on_drop: false }`
[INFO] [stderr]    Compiling serialization_derive v0.2.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parse_str`
[INFO] [stdout]  --> src/lib.rs:7:37
[INFO] [stdout]   |
[INFO] [stdout] 7 |     parse_macro_input, parse_quote, parse_str,
[INFO] [stdout]   |                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generic_params_without_bounds_concatted`
[INFO] [stdout]    --> src/lib.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let generic_params_without_bounds_concatted = quote! { #(#generic_params_without_bounds),* };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generic_params_without_bounds_concatted`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:305:5
[INFO] [stdout]     |
[INFO] [stdout] 305 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:658:5
[INFO] [stdout]     |
[INFO] [stdout] 658 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode_tuple` is never used
[INFO] [stdout]    --> src/lib.rs:337:4
[INFO] [stdout]     |
[INFO] [stdout] 337 | fn encode_tuple(
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse_str`
[INFO] [stdout]  --> src/lib.rs:7:37
[INFO] [stdout]   |
[INFO] [stdout] 7 |     parse_macro_input, parse_quote, parse_str,
[INFO] [stdout]   |                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generic_params_without_bounds_concatted`
[INFO] [stdout]    --> src/lib.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let generic_params_without_bounds_concatted = quote! { #(#generic_params_without_bounds),* };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generic_params_without_bounds_concatted`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:305:5
[INFO] [stdout]     |
[INFO] [stdout] 305 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:658:5
[INFO] [stdout]     |
[INFO] [stdout] 658 |     struct_name: proc_macro2::TokenStream,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode_tuple` is never used
[INFO] [stdout]    --> src/lib.rs:337:4
[INFO] [stdout]     |
[INFO] [stdout] 337 | fn encode_tuple(
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[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 1.79s
[INFO] running `Command { std: "docker" "inspect" "f8ba4a7b90687f2b385997aa8fbb36994d1d60ec22e59a7919ebe69ba5123044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ba4a7b90687f2b385997aa8fbb36994d1d60ec22e59a7919ebe69ba5123044", kill_on_drop: false }`
[INFO] [stdout] f8ba4a7b90687f2b385997aa8fbb36994d1d60ec22e59a7919ebe69ba5123044