[INFO] cloning repository https://github.com/vitekw27/LibraryRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vitekw27/LibraryRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitekw27%2FLibraryRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitekw27%2FLibraryRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44056382287f5a5b9b0ebd0316a1bb4054adda7e
[INFO] checking vitekw27/LibraryRust against try#70daa2c0d8eed7066b07966f3c0b0b8622bff4e4 for pr-151539
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitekw27%2FLibraryRust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vitekw27/LibraryRust
[INFO] finished tweaking git repo https://github.com/vitekw27/LibraryRust
[INFO] tweaked toml for git repo https://github.com/vitekw27/LibraryRust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vitekw27/LibraryRust on toolchain 70daa2c0d8eed7066b07966f3c0b0b8622bff4e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vitekw27/LibraryRust 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" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d3de20e5cffa8aac2be067d7bb4f619941a7fa13bdfcc9d8b84ea51d4676334
[INFO] running `Command { std: "docker" "start" "-a" "6d3de20e5cffa8aac2be067d7bb4f619941a7fa13bdfcc9d8b84ea51d4676334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d3de20e5cffa8aac2be067d7bb4f619941a7fa13bdfcc9d8b84ea51d4676334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d3de20e5cffa8aac2be067d7bb4f619941a7fa13bdfcc9d8b84ea51d4676334", kill_on_drop: false }`
[INFO] [stdout] 6d3de20e5cffa8aac2be067d7bb4f619941a7fa13bdfcc9d8b84ea51d4676334
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20cd694dfc11ec6bda23fd7234bb45db146a636589c8ac53874bc6f061348313
[INFO] running `Command { std: "docker" "start" "-a" "20cd694dfc11ec6bda23fd7234bb45db146a636589c8ac53874bc6f061348313", kill_on_drop: false }`
[INFO] [stderr]     Checking BookStore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:95:15
[INFO] [stdout]    |
[INFO] [stdout] 95 |             if(book.book_name == requested_book_name){
[INFO] [stdout]    |               ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 95 -             if(book.book_name == requested_book_name){
[INFO] [stdout] 95 +             if book.book_name == requested_book_name {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:95:15
[INFO] [stdout]    |
[INFO] [stdout] 95 |             if(book.book_name == requested_book_name){
[INFO] [stdout]    |               ^                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 95 -             if(book.book_name == requested_book_name){
[INFO] [stdout] 95 +             if book.book_name == requested_book_name {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Library` is more private than the item `init_mockdata`
[INFO] [stdout]    --> src/main.rs:125:1
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn init_mockdata(lib:&mut Library) {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `init_mockdata` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Library` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/main.rs:54:1
[INFO] [stdout]     |
[INFO] [stdout]  54 | struct Library{
[INFO] [stdout]     | ^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `change_published`, and `format_writer` are never used
[INFO] [stdout]   --> src/main.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Book{
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(id:i32, book_name:String, author_name:(String, String), genre:String) -> Book{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn change_published(&mut self,state:bool){{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn format_writer(&self) -> String{
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `customer_name` are never read
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Customer{
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 33 |     id:i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 34 |     customer_name:(String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `list_published_books` and `list_unpublished_books` are never used
[INFO] [stdout]   --> src/main.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl Library{
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn list_published_books(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn list_unpublished_books(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |             &self.published_books.push(book);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let _ = &self.published_books.push(book);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             &self.unpublished_books.push(book);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 83 |             let _ = &self.unpublished_books.push(book);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Library` is more private than the item `init_mockdata`
[INFO] [stdout]    --> src/main.rs:125:1
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn init_mockdata(lib:&mut Library) {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `init_mockdata` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Library` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/main.rs:54:1
[INFO] [stdout]     |
[INFO] [stdout]  54 | struct Library{
[INFO] [stdout]     | ^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `change_published`, and `format_writer` are never used
[INFO] [stdout]   --> src/main.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Book{
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(id:i32, book_name:String, author_name:(String, String), genre:String) -> Book{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn change_published(&mut self,state:bool){{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn format_writer(&self) -> String{
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `customer_name` are never read
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Customer{
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 33 |     id:i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 34 |     customer_name:(String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `list_published_books` and `list_unpublished_books` are never used
[INFO] [stdout]   --> src/main.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl Library{
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn list_published_books(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn list_unpublished_books(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |             &self.published_books.push(book);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let _ = &self.published_books.push(book);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             &self.unpublished_books.push(book);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 83 |             let _ = &self.unpublished_books.push(book);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "20cd694dfc11ec6bda23fd7234bb45db146a636589c8ac53874bc6f061348313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20cd694dfc11ec6bda23fd7234bb45db146a636589c8ac53874bc6f061348313", kill_on_drop: false }`
[INFO] [stdout] 20cd694dfc11ec6bda23fd7234bb45db146a636589c8ac53874bc6f061348313