[INFO] fetching crate protobuf-codegen-pure 2.18.2...
[INFO] checking protobuf-codegen-pure-2.18.2 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate protobuf-codegen-pure 2.18.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate protobuf-codegen-pure 2.18.2 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protobuf-codegen-pure 2.18.2
[INFO] finished tweaking crates.io crate protobuf-codegen-pure 2.18.2
[INFO] tweaked toml for crates.io crate protobuf-codegen-pure 2.18.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate protobuf-codegen-pure 2.18.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccf17f7080ab970621e472b1f0fcece7b73d6023730e4adbc6ca1e5e89a438ff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ccf17f7080ab970621e472b1f0fcece7b73d6023730e4adbc6ca1e5e89a438ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccf17f7080ab970621e472b1f0fcece7b73d6023730e4adbc6ca1e5e89a438ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf17f7080ab970621e472b1f0fcece7b73d6023730e4adbc6ca1e5e89a438ff", kill_on_drop: false }`
[INFO] [stdout] ccf17f7080ab970621e472b1f0fcece7b73d6023730e4adbc6ca1e5e89a438ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 052e7c1dd88067e70d2d5273e11fe3cda33e2c53c132125a89afa60e532ca0d8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "052e7c1dd88067e70d2d5273e11fe3cda33e2c53c132125a89afa60e532ca0d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.18.2
[INFO] [stderr]     Checking protobuf-codegen v2.18.2
[INFO] [stderr]     Checking protobuf-codegen-pure v2.18.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]     --> src/parser.rs:2086:35
[INFO] [stdout]      |
[INFO] [stdout] 2086 |         if let FieldType::Group { name, fields } = &mess.regular_fields_for_test()[1].typ {
[INFO] [stdout]      |                                   ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.95s
[INFO] running `Command { std: "docker" "inspect" "052e7c1dd88067e70d2d5273e11fe3cda33e2c53c132125a89afa60e532ca0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "052e7c1dd88067e70d2d5273e11fe3cda33e2c53c132125a89afa60e532ca0d8", kill_on_drop: false }`
[INFO] [stdout] 052e7c1dd88067e70d2d5273e11fe3cda33e2c53c132125a89afa60e532ca0d8