[INFO] cloning repository https://github.com/bl0rch1d/library_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bl0rch1d/library_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbl0rch1d%2Flibrary_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbl0rch1d%2Flibrary_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32f4d61e64e709c14bfa977b94b34b9fff819638
[INFO] testing bl0rch1d/library_rust against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbl0rch1d%2Flibrary_rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bl0rch1d/library_rust on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bl0rch1d/library_rust
[INFO] finished tweaking git repo https://github.com/bl0rch1d/library_rust
[INFO] tweaked toml for git repo https://github.com/bl0rch1d/library_rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/bl0rch1d/library_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10b5d031e3e3b2aa8d5f062b6982d3d3e34666976e74d815c862e0cf8e058e00
[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" "10b5d031e3e3b2aa8d5f062b6982d3d3e34666976e74d815c862e0cf8e058e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10b5d031e3e3b2aa8d5f062b6982d3d3e34666976e74d815c862e0cf8e058e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b5d031e3e3b2aa8d5f062b6982d3d3e34666976e74d815c862e0cf8e058e00", kill_on_drop: false }`
[INFO] [stdout] 10b5d031e3e3b2aa8d5f062b6982d3d3e34666976e74d815c862e0cf8e058e00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03f7e140f149b65477391bb2e0e9915dbf4736d9455b2beac09fe9774c7a1749
[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" "03f7e140f149b65477391bb2e0e9915dbf4736d9455b2beac09fe9774c7a1749", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stderr]    Compiling library_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `library::Entity`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use library::Entity;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NAME_LENGTH`
[INFO] [stdout]  --> src/author.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const NAME_LENGTH: usize = 20;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIO_LENGTH`
[INFO] [stdout]  --> src/author.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const BIO_LENGTH: usize = 140;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/author.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(name: String, bio: String) -> Author {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/author.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/author.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn validate(name: &String, bio: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TITLE_LENGTH`
[INFO] [stdout]  --> src/book.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const TITLE_LENGTH: usize = 50;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/book.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new(title: String, author: &Author) -> Book {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/book.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/book.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn validate(title: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NAME_LENGTH`
[INFO] [stdout]  --> src/reader.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const NAME_LENGTH: usize = 20;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMAIL_LENGTH`
[INFO] [stdout]  --> src/reader.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const EMAIL_LENGTH: usize = 50;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `COMMON_STRING_LENGTH`
[INFO] [stdout]  --> src/reader.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const COMMON_STRING_LENGTH: usize = 60;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/reader.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(name: String, email: String, city: String, street: String, house: String) -> Reader {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/reader.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/reader.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn validate(name: &String, email: &String, city: &String, street: &String, house: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/order.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(book: &Book, reader: &Reader, date: String) -> Order {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/order.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Entity`
[INFO] [stdout]  --> src/library.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Entity<'a> {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_entity`
[INFO] [stdout]   --> src/library.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add_entity(&mut self, entity: Entity) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     library.load_data();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/storage.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         serde_yaml::to_writer(file, self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.12s
[INFO] running `Command { std: "docker" "inspect" "03f7e140f149b65477391bb2e0e9915dbf4736d9455b2beac09fe9774c7a1749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f7e140f149b65477391bb2e0e9915dbf4736d9455b2beac09fe9774c7a1749", kill_on_drop: false }`
[INFO] [stdout] 03f7e140f149b65477391bb2e0e9915dbf4736d9455b2beac09fe9774c7a1749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e829d4050c1c613111ec09330ed6382b9be4bbab8a33c1292c4823e500907d5a
[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" "e829d4050c1c613111ec09330ed6382b9be4bbab8a33c1292c4823e500907d5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling library_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `library::Entity`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use library::Entity;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NAME_LENGTH`
[INFO] [stdout]  --> src/author.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const NAME_LENGTH: usize = 20;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIO_LENGTH`
[INFO] [stdout]  --> src/author.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const BIO_LENGTH: usize = 140;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/author.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(name: String, bio: String) -> Author {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/author.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/author.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn validate(name: &String, bio: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TITLE_LENGTH`
[INFO] [stdout]  --> src/book.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const TITLE_LENGTH: usize = 50;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/book.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new(title: String, author: &Author) -> Book {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/book.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/book.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn validate(title: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NAME_LENGTH`
[INFO] [stdout]  --> src/reader.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const NAME_LENGTH: usize = 20;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMAIL_LENGTH`
[INFO] [stdout]  --> src/reader.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const EMAIL_LENGTH: usize = 50;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `COMMON_STRING_LENGTH`
[INFO] [stdout]  --> src/reader.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const COMMON_STRING_LENGTH: usize = 60;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/reader.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(name: String, email: String, city: String, street: String, house: String) -> Reader {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/reader.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/reader.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn validate(name: &String, email: &String, city: &String, street: &String, house: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/order.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(book: &Book, reader: &Reader, date: String) -> Order {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_s`
[INFO] [stdout]   --> src/order.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn to_s(self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Entity`
[INFO] [stdout]  --> src/library.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Entity<'a> {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_entity`
[INFO] [stdout]   --> src/library.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add_entity(&mut self, entity: Entity) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     library.load_data();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/storage.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         serde_yaml::to_writer(file, self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "e829d4050c1c613111ec09330ed6382b9be4bbab8a33c1292c4823e500907d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e829d4050c1c613111ec09330ed6382b9be4bbab8a33c1292c4823e500907d5a", kill_on_drop: false }`
[INFO] [stdout] e829d4050c1c613111ec09330ed6382b9be4bbab8a33c1292c4823e500907d5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b7a055f41122171ec8396a157c7de9e160f849db7a699e2da262e8a65a690194
[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" "b7a055f41122171ec8396a157c7de9e160f849db7a699e2da262e8a65a690194", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `library::Entity`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use library::Entity;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NAME_LENGTH`
[INFO] [stderr]  --> src/author.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const NAME_LENGTH: usize = 20;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BIO_LENGTH`
[INFO] [stderr]  --> src/author.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const BIO_LENGTH: usize = 140;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/author.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new(name: String, bio: String) -> Author {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_s`
[INFO] [stderr]   --> src/author.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn to_s(self) -> String {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `validate`
[INFO] [stderr]   --> src/author.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn validate(name: &String, bio: &String) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TITLE_LENGTH`
[INFO] [stderr]  --> src/book.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const TITLE_LENGTH: usize = 50;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/book.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new(title: String, author: &Author) -> Book {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_s`
[INFO] [stderr]   --> src/book.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn to_s(self) -> String {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `validate`
[INFO] [stderr]   --> src/book.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn validate(title: &String) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NAME_LENGTH`
[INFO] [stderr]  --> src/reader.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const NAME_LENGTH: usize = 20;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `EMAIL_LENGTH`
[INFO] [stderr]  --> src/reader.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const EMAIL_LENGTH: usize = 50;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `COMMON_STRING_LENGTH`
[INFO] [stderr]  --> src/reader.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const COMMON_STRING_LENGTH: usize = 60;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/reader.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(name: String, email: String, city: String, street: String, house: String) -> Reader {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_s`
[INFO] [stderr]   --> src/reader.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn to_s(self) -> String {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `validate`
[INFO] [stderr]   --> src/reader.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn validate(name: &String, email: &String, city: &String, street: &String, house: &String) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/order.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub fn new(book: &Book, reader: &Reader, date: String) -> Order {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_s`
[INFO] [stderr]   --> src/order.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn to_s(self) -> String {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Entity`
[INFO] [stderr]  --> src/library.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Entity<'a> {
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_entity`
[INFO] [stderr]   --> src/library.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn add_entity(&mut self, entity: Entity) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     library.load_data();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/storage.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         serde_yaml::to_writer(file, self);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `library_rust` (bin "library_rust" test) generated 22 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/library_rust-f2f737d5095cf4ff)
[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" "b7a055f41122171ec8396a157c7de9e160f849db7a699e2da262e8a65a690194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7a055f41122171ec8396a157c7de9e160f849db7a699e2da262e8a65a690194", kill_on_drop: false }`
[INFO] [stdout] b7a055f41122171ec8396a157c7de9e160f849db7a699e2da262e8a65a690194