[INFO] cloning repository https://github.com/quant-shiva/rust_libr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quant-shiva/rust_libr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquant-shiva%2Frust_libr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquant-shiva%2Frust_libr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e841d0bbdc351b4596eb3476287fbcc28ff9480
[INFO] checking quant-shiva/rust_libr against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquant-shiva%2Frust_libr" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quant-shiva/rust_libr on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quant-shiva/rust_libr
[INFO] finished tweaking git repo https://github.com/quant-shiva/rust_libr
[INFO] tweaked toml for git repo https://github.com/quant-shiva/rust_libr written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/quant-shiva/rust_libr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc342273f0500a51eb395ed937420d927b07426272abdec29a3ce1de191e3b23
[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" "bc342273f0500a51eb395ed937420d927b07426272abdec29a3ce1de191e3b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc342273f0500a51eb395ed937420d927b07426272abdec29a3ce1de191e3b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc342273f0500a51eb395ed937420d927b07426272abdec29a3ce1de191e3b23", kill_on_drop: false }`
[INFO] [stdout] bc342273f0500a51eb395ed937420d927b07426272abdec29a3ce1de191e3b23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89e68729508d884ebe690590d8bfe45dda7733270e5496bde22ac50a5c934ce8
[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" "89e68729508d884ebe690590d8bfe45dda7733270e5496bde22ac50a5c934ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking postgres-protocol v0.3.2
[INFO] [stderr]     Checking postgres-shared v0.4.2
[INFO] [stderr]     Checking postgres v0.15.2
[INFO] [stderr]     Checking rust_libr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/book.rs:85:46
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn get_book_by_id(conn: &Connection, id: &i32) -> Option<Book> {
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/book.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(isbn: &str, title: &str, subject: &str, publiser: &str, language: &str, author: &str) -> Book {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `book_insert`
[INFO] [stdout]   --> src/book.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn book_insert(conn: &Connection) -> Book {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/book_item.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(barcode: &str, book: &Book) -> BookItem {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_book_item`
[INFO] [stdout]   --> src/book_item.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn insert_book_item(conn: &Connection) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/book.rs:85:46
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn get_book_by_id(conn: &Connection, id: &i32) -> Option<Book> {
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/book.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(isbn: &str, title: &str, subject: &str, publiser: &str, language: &str, author: &str) -> Book {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `book_insert`
[INFO] [stdout]   --> src/book.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn book_insert(conn: &Connection) -> Book {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/book_item.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(barcode: &str, book: &Book) -> BookItem {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_book_item`
[INFO] [stdout]   --> src/book_item.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn insert_book_item(conn: &Connection) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.71s
[INFO] running `Command { std: "docker" "inspect" "89e68729508d884ebe690590d8bfe45dda7733270e5496bde22ac50a5c934ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e68729508d884ebe690590d8bfe45dda7733270e5496bde22ac50a5c934ce8", kill_on_drop: false }`
[INFO] [stdout] 89e68729508d884ebe690590d8bfe45dda7733270e5496bde22ac50a5c934ce8