[INFO] fetching crate syn-args-derive 0.3.1...
[INFO] checking syn-args-derive-0.3.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate syn-args-derive 0.3.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate syn-args-derive 0.3.1
[INFO] finished tweaking crates.io crate syn-args-derive 0.3.1
[INFO] tweaked toml for crates.io crate syn-args-derive 0.3.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syn-args-derive 0.3.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate syn-args-derive 0.3.1 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cbb997ff4ab84f5264a0fb8e42fc4cb5d7469f06c83d306349fa6831297f5cc
[INFO] running `Command { std: "docker" "start" "-a" "2cbb997ff4ab84f5264a0fb8e42fc4cb5d7469f06c83d306349fa6831297f5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cbb997ff4ab84f5264a0fb8e42fc4cb5d7469f06c83d306349fa6831297f5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cbb997ff4ab84f5264a0fb8e42fc4cb5d7469f06c83d306349fa6831297f5cc", kill_on_drop: false }`
[INFO] [stdout] 2cbb997ff4ab84f5264a0fb8e42fc4cb5d7469f06c83d306349fa6831297f5cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a64260ff82acd4a9f5edd4b9420c758d52d33bad02089c3225e2c548877d528
[INFO] running `Command { std: "docker" "start" "-a" "6a64260ff82acd4a9f5edd4b9420c758d52d33bad02089c3225e2c548877d528", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking similar v2.6.0
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.87
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking insta v1.39.0
[INFO] [stderr]     Checking syn-args-derive v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/macro_impl.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |             for (j, field_value) in variant_fields_value.iter().enumerate() {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/macro_impl.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |             for (j, field_value) in variant_fields_value.iter().enumerate() {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "6a64260ff82acd4a9f5edd4b9420c758d52d33bad02089c3225e2c548877d528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a64260ff82acd4a9f5edd4b9420c758d52d33bad02089c3225e2c548877d528", kill_on_drop: false }`
[INFO] [stdout] 6a64260ff82acd4a9f5edd4b9420c758d52d33bad02089c3225e2c548877d528