[INFO] cloning repository https://github.com/CalebHendren/RustBookstore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CalebHendren/RustBookstore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalebHendren%2FRustBookstore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalebHendren%2FRustBookstore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 775abc71cfc14aa36749afc6894d9aa26c22b571
[INFO] building CalebHendren/RustBookstore against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalebHendren%2FRustBookstore" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CalebHendren/RustBookstore on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CalebHendren/RustBookstore
[INFO] finished tweaking git repo https://github.com/CalebHendren/RustBookstore
[INFO] tweaked toml for git repo https://github.com/CalebHendren/RustBookstore written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CalebHendren/RustBookstore 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 753bcf35cedd6603c4278930d3ad26ee9dcfa6b5919ba5ccd627e48262ade612
[INFO] running `Command { std: "docker" "start" "-a" "753bcf35cedd6603c4278930d3ad26ee9dcfa6b5919ba5ccd627e48262ade612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "753bcf35cedd6603c4278930d3ad26ee9dcfa6b5919ba5ccd627e48262ade612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "753bcf35cedd6603c4278930d3ad26ee9dcfa6b5919ba5ccd627e48262ade612", kill_on_drop: false }`
[INFO] [stdout] 753bcf35cedd6603c4278930d3ad26ee9dcfa6b5919ba5ccd627e48262ade612
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 412cf90c33256d2a0410a8656e2668304f08484a2a3d523b37de83a9c8f43c83
[INFO] running `Command { std: "docker" "start" "-a" "412cf90c33256d2a0410a8656e2668304f08484a2a3d523b37de83a9c8f43c83", kill_on_drop: false }`
[INFO] [stderr]    Compiling RustBookstore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `day` is never read
[INFO] [stdout]    --> src/main.rs:227:25
[INFO] [stdout]     |
[INFO] [stdout] 227 |                 let mut day = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `month` is never read
[INFO] [stdout]    --> src/main.rs:228:25
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 let mut month = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `year` is never read
[INFO] [stdout]    --> src/main.rs:229:25
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 let mut year = 0;
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `quantity` is never read
[INFO] [stdout]    --> src/main.rs:230:25
[INFO] [stdout]     |
[INFO] [stdout] 230 |                 let mut quantity = 0;
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `price` is never read
[INFO] [stdout]    --> src/main.rs:231:25
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 let mut price = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `day` is never read
[INFO] [stdout]    --> src/main.rs:283:25
[INFO] [stdout]     |
[INFO] [stdout] 283 |                 let mut day = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `month` is never read
[INFO] [stdout]    --> src/main.rs:284:25
[INFO] [stdout]     |
[INFO] [stdout] 284 |                 let mut month = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `year` is never read
[INFO] [stdout]    --> src/main.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 let mut year = 0;
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `quantity` is never read
[INFO] [stdout]    --> src/main.rs:286:25
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 let mut quantity = 0;
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `day` is never read
[INFO] [stdout]    --> src/main.rs:329:25
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 let mut day = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `month` is never read
[INFO] [stdout]    --> src/main.rs:330:25
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 let mut month = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `year` is never read
[INFO] [stdout]    --> src/main.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |                 let mut year = 0;
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `quantity` is never read
[INFO] [stdout]    --> src/main.rs:332:25
[INFO] [stdout]     |
[INFO] [stdout] 332 |                 let mut quantity = 0;
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_book` is never used
[INFO] [stdout]   --> src/main.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Catalog {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn remove_book(&mut self, isbn: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Transaction` is never used
[INFO] [stdout]   --> src/main.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 | trait Transaction {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `customer_id`, `ordered_book`, and `quantity` are never read
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Order {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 89 |     customer_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 90 |     ordered_book: Book,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 91 |     quantity: i32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Order` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `customer_id`, `sold_book`, and `quantity` are never read
[INFO] [stdout]    --> src/main.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 125 | struct Sale {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 128 |     customer_id: String,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 129 |     sold_book: Book,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 130 |     quantity: i32,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Sale` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "412cf90c33256d2a0410a8656e2668304f08484a2a3d523b37de83a9c8f43c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412cf90c33256d2a0410a8656e2668304f08484a2a3d523b37de83a9c8f43c83", kill_on_drop: false }`
[INFO] [stdout] 412cf90c33256d2a0410a8656e2668304f08484a2a3d523b37de83a9c8f43c83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6e501c11e54d6b8275f338aba58380cc46b8b206f2da0a0747f2f5aa29cbff6
[INFO] running `Command { std: "docker" "start" "-a" "a6e501c11e54d6b8275f338aba58380cc46b8b206f2da0a0747f2f5aa29cbff6", kill_on_drop: false }`
[INFO] [stderr]    Compiling RustBookstore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `day` is never read
[INFO] [stdout]    --> src/main.rs:227:25
[INFO] [stdout]     |
[INFO] [stdout] 227 |                 let mut day = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `month` is never read
[INFO] [stdout]    --> src/main.rs:228:25
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 let mut month = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `year` is never read
[INFO] [stdout]    --> src/main.rs:229:25
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 let mut year = 0;
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `quantity` is never read
[INFO] [stdout]    --> src/main.rs:230:25
[INFO] [stdout]     |
[INFO] [stdout] 230 |                 let mut quantity = 0;
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `price` is never read
[INFO] [stdout]    --> src/main.rs:231:25
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 let mut price = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `day` is never read
[INFO] [stdout]    --> src/main.rs:283:25
[INFO] [stdout]     |
[INFO] [stdout] 283 |                 let mut day = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `month` is never read
[INFO] [stdout]    --> src/main.rs:284:25
[INFO] [stdout]     |
[INFO] [stdout] 284 |                 let mut month = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `year` is never read
[INFO] [stdout]    --> src/main.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 let mut year = 0;
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `quantity` is never read
[INFO] [stdout]    --> src/main.rs:286:25
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 let mut quantity = 0;
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `day` is never read
[INFO] [stdout]    --> src/main.rs:329:25
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 let mut day = 0;
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `month` is never read
[INFO] [stdout]    --> src/main.rs:330:25
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 let mut month = 0;
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `year` is never read
[INFO] [stdout]    --> src/main.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |                 let mut year = 0;
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `quantity` is never read
[INFO] [stdout]    --> src/main.rs:332:25
[INFO] [stdout]     |
[INFO] [stdout] 332 |                 let mut quantity = 0;
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_book` is never used
[INFO] [stdout]   --> src/main.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Catalog {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn remove_book(&mut self, isbn: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Transaction` is never used
[INFO] [stdout]   --> src/main.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 | trait Transaction {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `customer_id`, `ordered_book`, and `quantity` are never read
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Order {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 89 |     customer_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 90 |     ordered_book: Book,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 91 |     quantity: i32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Order` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `customer_id`, `sold_book`, and `quantity` are never read
[INFO] [stdout]    --> src/main.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 125 | struct Sale {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 128 |     customer_id: String,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 129 |     sold_book: Book,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 130 |     quantity: i32,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Sale` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "a6e501c11e54d6b8275f338aba58380cc46b8b206f2da0a0747f2f5aa29cbff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e501c11e54d6b8275f338aba58380cc46b8b206f2da0a0747f2f5aa29cbff6", kill_on_drop: false }`
[INFO] [stdout] a6e501c11e54d6b8275f338aba58380cc46b8b206f2da0a0747f2f5aa29cbff6
