[INFO] cloning repository https://github.com/kabwoyke/structs_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kabwoyke/structs_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabwoyke%2Fstructs_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabwoyke%2Fstructs_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef44130078b01c61f4b45401732a71d4e65c62e2
[INFO] testing kabwoyke/structs_practice against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabwoyke%2Fstructs_practice" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kabwoyke/structs_practice
[INFO] finished tweaking git repo https://github.com/kabwoyke/structs_practice
[INFO] tweaked toml for git repo https://github.com/kabwoyke/structs_practice written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kabwoyke/structs_practice on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kabwoyke/structs_practice 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8
[INFO] running `Command { std: "docker" "start" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `first_name`, `last_name`, and `age` are never read
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | struct User {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout]  9 |     first_name:String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 10 |     last_name:String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     age:u32
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `first_name`, `last_name`, and `age` are never read
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | struct User {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout]  9 |     first_name:String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 10 |     last_name:String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     age:u32
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: fields `first_name`, `last_name`, and `age` are never read
[INFO] [stderr]   --> src/main.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr]  8 | struct User {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr]  9 |     first_name:String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 10 |     last_name:String,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 11 |     age:u32
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `struct_practice` (bin "struct_practice" test) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/struct_practice-80540db58e3a9fdf)
[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" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8", kill_on_drop: false }`
[INFO] [stdout] e0009fdb90b2d92b6c1de4f6f612529e35343144d25a393587cfc64b2ebf9bf8
