[INFO] fetching crate protobuf-codegen-pure 2.25.1...
[INFO] checking protobuf-codegen-pure-2.25.1 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate protobuf-codegen-pure 2.25.1 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate protobuf-codegen-pure 2.25.1 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protobuf-codegen-pure 2.25.1
[INFO] finished tweaking crates.io crate protobuf-codegen-pure 2.25.1
[INFO] tweaked toml for crates.io crate protobuf-codegen-pure 2.25.1 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate crates.io crate protobuf-codegen-pure 2.25.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec4a45d0136f86e07608ab986ce9f6fd2d602d14bf79611d0d6d55c2c9ca141b
[INFO] running `Command { std: "docker" "start" "-a" "ec4a45d0136f86e07608ab986ce9f6fd2d602d14bf79611d0d6d55c2c9ca141b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec4a45d0136f86e07608ab986ce9f6fd2d602d14bf79611d0d6d55c2c9ca141b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4a45d0136f86e07608ab986ce9f6fd2d602d14bf79611d0d6d55c2c9ca141b", kill_on_drop: false }`
[INFO] [stdout] ec4a45d0136f86e07608ab986ce9f6fd2d602d14bf79611d0d6d55c2c9ca141b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80749251f30ecbcc90aa4dfc662240b734aba15e52066ba67dfdd85bebde7813
[INFO] running `Command { std: "docker" "start" "-a" "80749251f30ecbcc90aa4dfc662240b734aba15e52066ba67dfdd85bebde7813", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]     Checking protobuf-codegen v2.25.1
[INFO] [stderr]     Checking protobuf-codegen-pure v2.25.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]     --> src/parser.rs:2073:35
[INFO] [stdout]      |
[INFO] [stdout] 2073 |         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: field is never read: `file`
[INFO] [stdout]    --> src/lib.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     file: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]    --> src/lib.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 |     error: CodegenError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/lib.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     file: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]    --> src/lib.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 |     error: CodegenError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.60s
[INFO] running `Command { std: "docker" "inspect" "80749251f30ecbcc90aa4dfc662240b734aba15e52066ba67dfdd85bebde7813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80749251f30ecbcc90aa4dfc662240b734aba15e52066ba67dfdd85bebde7813", kill_on_drop: false }`
[INFO] [stdout] 80749251f30ecbcc90aa4dfc662240b734aba15e52066ba67dfdd85bebde7813