[INFO] cloning repository https://github.com/amanbm/payment-service
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amanbm/payment-service" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famanbm%2Fpayment-service", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famanbm%2Fpayment-service'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92b1128ff53dd78e2e33266b4998e0df76e5d949
[INFO] checking amanbm/payment-service against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famanbm%2Fpayment-service" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amanbm/payment-service on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amanbm/payment-service
[INFO] finished tweaking git repo https://github.com/amanbm/payment-service
[INFO] tweaked toml for git repo https://github.com/amanbm/payment-service written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/amanbm/payment-service 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prettyplease v0.1.10
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[INFO] [stderr]   Downloaded prost-build v0.10.3
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[INFO] [stdout] bd4757bf057a06c860bc91e3874ee6f743ebae3a046b22157128914b6169dd27
[INFO] running `Command { std: "docker" "start" "-a" "bd4757bf057a06c860bc91e3874ee6f743ebae3a046b22157128914b6169dd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd4757bf057a06c860bc91e3874ee6f743ebae3a046b22157128914b6169dd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd4757bf057a06c860bc91e3874ee6f743ebae3a046b22157128914b6169dd27", kill_on_drop: false }`
[INFO] [stdout] bd4757bf057a06c860bc91e3874ee6f743ebae3a046b22157128914b6169dd27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b299c1453bb6deeb3fa2a14456962186ffac8cb72ff49b086a031069a91d876
[INFO] running `Command { std: "docker" "start" "-a" "6b299c1453bb6deeb3fa2a14456962186ffac8cb72ff49b086a031069a91d876", kill_on_drop: false }`
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[INFO] [stderr]    Compiling grpc_example v0.1.0 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/server.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/server.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `client_to_send` is never read
[INFO] [stdout]    --> src/client.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut client_to_send = String::new();
[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 `client_to_send` is never read
[INFO] [stdout]    --> src/client.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut client_to_send = String::new();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut m = HashMap::new();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut m = HashMap::new();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `resp_message` is never read
[INFO] [stdout]    --> src/server.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let mut resp_message = String::new();
[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 `resp_message` is never read
[INFO] [stdout]    --> src/server.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let mut resp_message = String::new();
[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: field `client_id` is never read
[INFO] [stdout]  --> src/user_info.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct User {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 3 |     pub client_id: String,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `currEntry` should have a snake case name
[INFO] [stdout]    --> src/server.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |             let currEntry = map.get(&req.client_id).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `curr_entry`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `client_id` is never read
[INFO] [stdout]  --> src/user_info.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct User {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 3 |     pub client_id: String,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `currEntry` should have a snake case name
[INFO] [stdout]    --> src/server.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |             let currEntry = map.get(&req.client_id).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `curr_entry`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `client_name` is never read
[INFO] [stdout]   --> src/client.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut client_name = String::new();
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_get_balance` is never used
[INFO] [stdout]   --> src/client.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn sync_get_balance (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_sign_in` is never used
[INFO] [stdout]   --> src/client.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn sync_sign_in (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_send_payment` is never used
[INFO] [stdout]   --> src/client.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn sync_send_payment (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_all_users` is never used
[INFO] [stdout]   --> src/client.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn sync_all_users (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_close_con` is never used
[INFO] [stdout]   --> src/client.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn sync_close_con (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `client_name` is never read
[INFO] [stdout]   --> src/client.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut client_name = String::new();
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_get_balance` is never used
[INFO] [stdout]   --> src/client.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn sync_get_balance (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_sign_in` is never used
[INFO] [stdout]   --> src/client.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn sync_sign_in (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_send_payment` is never used
[INFO] [stdout]   --> src/client.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn sync_send_payment (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_all_users` is never used
[INFO] [stdout]   --> src/client.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn sync_all_users (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync_close_con` is never used
[INFO] [stdout]   --> src/client.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn sync_close_con (client_name: &String) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.03s
[INFO] running `Command { std: "docker" "inspect" "6b299c1453bb6deeb3fa2a14456962186ffac8cb72ff49b086a031069a91d876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b299c1453bb6deeb3fa2a14456962186ffac8cb72ff49b086a031069a91d876", kill_on_drop: false }`
[INFO] [stdout] 6b299c1453bb6deeb3fa2a14456962186ffac8cb72ff49b086a031069a91d876