[INFO] cloning repository https://github.com/kaushik-kaizoku/rust_bookrack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kaushik-kaizoku/rust_bookrack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaushik-kaizoku%2Frust_bookrack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaushik-kaizoku%2Frust_bookrack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23b8ea94f6c276828e716cb43f4eb19404cece87
[INFO] testing kaushik-kaizoku/rust_bookrack against 1.97.0-beta.6 for beta-1.98-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaushik-kaizoku%2Frust_bookrack" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kaushik-kaizoku/rust_bookrack
[INFO] finished tweaking git repo https://github.com/kaushik-kaizoku/rust_bookrack
[INFO] tweaked toml for git repo https://github.com/kaushik-kaizoku/rust_bookrack written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kaushik-kaizoku/rust_bookrack on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kaushik-kaizoku/rust_bookrack 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245
[INFO] running `Command { std: "docker" "start" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245", 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" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245", 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" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cli_library v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let mut book = Book {
[INFO] [stdout]    |                     ----^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `title` and `author` are never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Book {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 5 |     id: u32,
[INFO] [stdout] 6 |     title: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     author: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Book` 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 `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245", 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" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cli_library v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let mut book = Book {
[INFO] [stdout]    |                     ----^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `title` and `author` are never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Book {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 5 |     id: u32,
[INFO] [stdout] 6 |     title: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     author: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Book` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245", 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" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:77:21
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 let mut book = Book {
[INFO] [stderr]    |                     ----^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `title` and `author` are never read
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Book {
[INFO] [stderr]   |            ---- fields in this struct
[INFO] [stderr] 5 |     id: u32,
[INFO] [stderr] 6 |     title: String,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 7 |     author: String,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Book` 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: `cli_library` (bin "cli_library" test) generated 2 warnings (run `cargo fix --bin "cli_library" -p cli_library --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cli_library-744847faad0e374c)
[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" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245", kill_on_drop: false }`
[INFO] [stdout] 6d3d5ab6e02b3c5e810943f0b69b30b2e72ccb02ea602765f6f52d5bb8add245
