[INFO] cloning repository https://github.com/stec-ug-haftungsbeschrankt/shopster
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stec-ug-haftungsbeschrankt/shopster" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstec-ug-haftungsbeschrankt%2Fshopster", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstec-ug-haftungsbeschrankt%2Fshopster'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db786b227c40cefc941ad3893a39b553b270d1ba
[INFO] checking stec-ug-haftungsbeschrankt/shopster against master#ff647322379c48947c196639599067665ff9eb88 for pr-151539-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstec-ug-haftungsbeschrankt%2Fshopster" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stec-ug-haftungsbeschrankt/shopster
[INFO] finished tweaking git repo https://github.com/stec-ug-haftungsbeschrankt/shopster
[INFO] tweaked toml for git repo https://github.com/stec-ug-haftungsbeschrankt/shopster written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stec-ug-haftungsbeschrankt/shopster on toolchain ff647322379c48947c196639599067665ff9eb88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stec-ug-haftungsbeschrankt/shopster 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" "+ff647322379c48947c196639599067665ff9eb88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "78224324440ea6d3bce1ccd9a371eb5ef07dd1aba42ddeec50bb1be1b205d3da", 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" "78224324440ea6d3bce1ccd9a371eb5ef07dd1aba42ddeec50bb1be1b205d3da" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78224324440ea6d3bce1ccd9a371eb5ef07dd1aba42ddeec50bb1be1b205d3da", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "78224324440ea6d3bce1ccd9a371eb5ef07dd1aba42ddeec50bb1be1b205d3da" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `db_customer`
[INFO] [stdout]    --> src/customers.rs:342:13
[INFO] [stdout]     |
[INFO] [stdout] 342 |         let db_customer = DbCustomer::find_by_email(self.tenant_id, email)?;
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_db_customer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db_customer`
[INFO] [stdout]    --> src/customers.rs:342:13
[INFO] [stdout]     |
[INFO] [stdout] 342 |         let db_customer = DbCustomer::find_by_email(self.tenant_id, email)?;
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_db_customer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `drop_database` is never used
[INFO] [stdout]   --> src/postgresql/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl DatabaseHelper {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn drop_database(db_url: &str) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `drop_database` is never used
[INFO] [stdout]   --> src/postgresql/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl DatabaseHelper {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn drop_database(db_url: &str) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]   --> examples/shopping_workflow.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use uuid::Uuid;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item_id`
[INFO] [stdout]   --> examples/shopping_workflow.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let item_id = baskets.add_product_to_basket(basket_id, created_product.id, 1)?;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_item_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/customer_tests.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut all_customers = customers.get_all().unwrap();
[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: unused variable: `customer`
[INFO] [stdout]   --> tests/customer_tests.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let customer = customers.insert(&new_customer).unwrap();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_customer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `basket`
[INFO] [stdout]   --> tests/baskets_tests.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let basket = baskets.get_basket(basket_id).unwrap();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_basket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_harness_two_tenants` is never used
[INFO] [stdout]   --> tests/common/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn test_harness_two_tenants(test_code: impl Fn(String, String, String)) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 1m 39s
[INFO] running `Command { std: "docker" "inspect" "78224324440ea6d3bce1ccd9a371eb5ef07dd1aba42ddeec50bb1be1b205d3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78224324440ea6d3bce1ccd9a371eb5ef07dd1aba42ddeec50bb1be1b205d3da", kill_on_drop: false }`
[INFO] [stdout] 78224324440ea6d3bce1ccd9a371eb5ef07dd1aba42ddeec50bb1be1b205d3da