[INFO] cloning repository https://github.com/kturnal/rust_lottery
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kturnal/rust_lottery" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkturnal%2Frust_lottery", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkturnal%2Frust_lottery'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58b8b345d9e62371388cba5b509a24473cc4a4cd
[INFO] checking kturnal/rust_lottery against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkturnal%2Frust_lottery" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kturnal/rust_lottery
[INFO] finished tweaking git repo https://github.com/kturnal/rust_lottery
[INFO] tweaked toml for git repo https://github.com/kturnal/rust_lottery written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kturnal/rust_lottery on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kturnal/rust_lottery 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rend v0.4.1
[INFO] [stderr]   Downloaded rust_decimal_macros v1.33.1
[INFO] [stderr]   Downloaded bytecheck v0.6.11
[INFO] [stderr]   Downloaded bytecheck_derive v0.6.11
[INFO] [stderr]   Downloaded angle v0.5.0
[INFO] [stderr]   Downloaded proc-macro-crate v2.0.1
[INFO] [stderr]   Downloaded borsh-derive v1.3.0
[INFO] [stderr]   Downloaded color-rs v0.8.0
[INFO] [stderr]   Downloaded kparse v3.0.5
[INFO] [stderr]   Downloaded borsh v1.3.0
[INFO] [stderr]   Downloaded rust_decimal v1.33.1
[INFO] [stderr]   Downloaded time v0.3.31
[INFO] [stderr]   Downloaded rkyv v0.7.43
[INFO] [stderr]   Downloaded rkyv_derive v0.7.43
[INFO] [stderr]   Downloaded deranged v0.3.10
[INFO] [stderr]   Downloaded spreadsheet-ods v0.20.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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_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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65282ecf28531cda696f6efcd0230748f7f8a0ce777fe891e8e426285c2f4869
[INFO] running `Command { std: "docker" "start" "-a" "65282ecf28531cda696f6efcd0230748f7f8a0ce777fe891e8e426285c2f4869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65282ecf28531cda696f6efcd0230748f7f8a0ce777fe891e8e426285c2f4869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65282ecf28531cda696f6efcd0230748f7f8a0ce777fe891e8e426285c2f4869", kill_on_drop: false }`
[INFO] [stdout] 65282ecf28531cda696f6efcd0230748f7f8a0ce777fe891e8e426285c2f4869
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80d9108022c22bb44704d82d65fc221b9c3a23f493fe35ae22d56154217ea4b7
[INFO] running `Command { std: "docker" "start" "-a" "80d9108022c22bb44704d82d65fc221b9c3a23f493fe35ae22d56154217ea4b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rust_decimal v1.33.1
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking deranged v0.3.10
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking bytecount v0.6.7
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking writeable v0.5.4
[INFO] [stderr]     Checking litemap v0.7.2
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking unicode-ident v1.0.1
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking string_cache v0.8.7
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking quick-xml v0.31.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]    Compiling rust_decimal_macros v1.33.1
[INFO] [stderr]     Checking nom_locate v4.2.0
[INFO] [stderr]     Checking kparse v3.0.5
[INFO] [stderr]    Compiling displaydoc v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking tinystr v0.7.5
[INFO] [stderr]     Checking icu_locid v1.4.0
[INFO] [stderr]     Checking angle v0.5.0
[INFO] [stderr]     Checking color-rs v0.8.0
[INFO] [stderr]     Checking spreadsheet-ods v0.20.2
[INFO] [stderr]     Checking lunch_lottery_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `spreadsheet_ods::sheet::Range`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use spreadsheet_ods::sheet::Range;
[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 import: `Value`
[INFO] [stdout]  --> src/main.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 | use spreadsheet_ods::{WorkBook, Sheet, Value};
[INFO] [stdout]   |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::NaiveDate`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::NaiveDate;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spreadsheet_ods::format`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use spreadsheet_ods::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spreadsheet_ods::formula`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use spreadsheet_ods::formula;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cm` and `mm`
[INFO] [stdout]   --> src/main.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use spreadsheet_ods::{cm, mm};
[INFO] [stdout]    |                       ^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CellStyle`
[INFO] [stdout]   --> src/main.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 | use spreadsheet_ods::style::{CellStyle};
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Border`, `Length`, and `TextRelief`
[INFO] [stdout]   --> src/main.rs:14:37
[INFO] [stdout]    |
[INFO] [stdout] 14 | use spreadsheet_ods::style::units::{TextRelief, Border, Length};
[INFO] [stdout]    |                                     ^^^^^^^^^^  ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spreadsheet_ods::sheet::Range`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use spreadsheet_ods::sheet::Range;
[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 import: `Value`
[INFO] [stdout]  --> src/main.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 | use spreadsheet_ods::{WorkBook, Sheet, Value};
[INFO] [stdout]   |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::NaiveDate`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::NaiveDate;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spreadsheet_ods::format`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use spreadsheet_ods::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spreadsheet_ods::formula`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use spreadsheet_ods::formula;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cm` and `mm`
[INFO] [stdout]   --> src/main.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use spreadsheet_ods::{cm, mm};
[INFO] [stdout]    |                       ^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CellStyle`
[INFO] [stdout]   --> src/main.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 | use spreadsheet_ods::style::{CellStyle};
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Border`, `Length`, and `TextRelief`
[INFO] [stdout]   --> src/main.rs:14:37
[INFO] [stdout]    |
[INFO] [stdout] 14 | use spreadsheet_ods::style::units::{TextRelief, Border, Length};
[INFO] [stdout]    |                                     ^^^^^^^^^^  ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut wb = if path.exists() {
[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: `v`
[INFO] [stdout]   --> src/main.rs:55:45
[INFO] [stdout]    |
[INFO] [stdout] 55 |             spreadsheet_ods::Value::Boolean(v) => {}
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:56:44
[INFO] [stdout]    |
[INFO] [stdout] 56 |             spreadsheet_ods::Value::Number(v) => {}
[INFO] [stdout]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:57:48
[INFO] [stdout]    |
[INFO] [stdout] 57 |             spreadsheet_ods::Value::Percentage(v) => {}
[INFO] [stdout]    |                                                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:58:46
[INFO] [stdout]    |
[INFO] [stdout] 58 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur`
[INFO] [stdout]   --> src/main.rs:58:49
[INFO] [stdout]    |
[INFO] [stdout] 58 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]    |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_cur`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |             spreadsheet_ods::Value::TextXml(v) => {}
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:63:46
[INFO] [stdout]    |
[INFO] [stdout] 63 |             spreadsheet_ods::Value::DateTime(v) => {}
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:64:50
[INFO] [stdout]    |
[INFO] [stdout] 64 |             spreadsheet_ods::Value::TimeDuration(v) => {}
[INFO] [stdout]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:87:46
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 spreadsheet_ods::Value::Text(v) => {} //println!("({},{}) = text {}", r, c, v),
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:109:45
[INFO] [stdout]     |
[INFO] [stdout] 109 |             spreadsheet_ods::Value::Boolean(v) => {}
[INFO] [stdout]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:110:44
[INFO] [stdout]     |
[INFO] [stdout] 110 |             spreadsheet_ods::Value::Number(v) => {}
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:111:48
[INFO] [stdout]     |
[INFO] [stdout] 111 |             spreadsheet_ods::Value::Percentage(v) => {}
[INFO] [stdout]     |                                                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:112:46
[INFO] [stdout]     |
[INFO] [stdout] 112 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur`
[INFO] [stdout]    --> src/main.rs:112:49
[INFO] [stdout]     |
[INFO] [stdout] 112 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]     |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_cur`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:113:42
[INFO] [stdout]     |
[INFO] [stdout] 113 |             spreadsheet_ods::Value::Text(v) => {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:116:45
[INFO] [stdout]     |
[INFO] [stdout] 116 |             spreadsheet_ods::Value::TextXml(v) => {}
[INFO] [stdout]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:117:46
[INFO] [stdout]     |
[INFO] [stdout] 117 |             spreadsheet_ods::Value::DateTime(v) => {}
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:118:50
[INFO] [stdout]     |
[INFO] [stdout] 118 |             spreadsheet_ods::Value::TimeDuration(v) => {}
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `return_vec` is never read
[INFO] [stdout]    --> src/main.rs:125:39
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let mut return_vec: Vec<String> = Vec::new();
[INFO] [stdout]     |                                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DATE` is never used
[INFO] [stdout]   --> src/main.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const DATE: &str = "99.99.24";
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_match` is never used
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn simple_match(participants : &Vec<String>, sheet : &Sheet) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut wb = if path.exists() {
[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: `v`
[INFO] [stdout]   --> src/main.rs:55:45
[INFO] [stdout]    |
[INFO] [stdout] 55 |             spreadsheet_ods::Value::Boolean(v) => {}
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:56:44
[INFO] [stdout]    |
[INFO] [stdout] 56 |             spreadsheet_ods::Value::Number(v) => {}
[INFO] [stdout]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:57:48
[INFO] [stdout]    |
[INFO] [stdout] 57 |             spreadsheet_ods::Value::Percentage(v) => {}
[INFO] [stdout]    |                                                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:58:46
[INFO] [stdout]    |
[INFO] [stdout] 58 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur`
[INFO] [stdout]   --> src/main.rs:58:49
[INFO] [stdout]    |
[INFO] [stdout] 58 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]    |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_cur`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |             spreadsheet_ods::Value::TextXml(v) => {}
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:63:46
[INFO] [stdout]    |
[INFO] [stdout] 63 |             spreadsheet_ods::Value::DateTime(v) => {}
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:64:50
[INFO] [stdout]    |
[INFO] [stdout] 64 |             spreadsheet_ods::Value::TimeDuration(v) => {}
[INFO] [stdout]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:87:46
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 spreadsheet_ods::Value::Text(v) => {} //println!("({},{}) = text {}", r, c, v),
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:109:45
[INFO] [stdout]     |
[INFO] [stdout] 109 |             spreadsheet_ods::Value::Boolean(v) => {}
[INFO] [stdout]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:110:44
[INFO] [stdout]     |
[INFO] [stdout] 110 |             spreadsheet_ods::Value::Number(v) => {}
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:111:48
[INFO] [stdout]     |
[INFO] [stdout] 111 |             spreadsheet_ods::Value::Percentage(v) => {}
[INFO] [stdout]     |                                                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:112:46
[INFO] [stdout]     |
[INFO] [stdout] 112 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur`
[INFO] [stdout]    --> src/main.rs:112:49
[INFO] [stdout]     |
[INFO] [stdout] 112 |             spreadsheet_ods::Value::Currency(v, cur) => {}
[INFO] [stdout]     |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_cur`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:113:42
[INFO] [stdout]     |
[INFO] [stdout] 113 |             spreadsheet_ods::Value::Text(v) => {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:116:45
[INFO] [stdout]     |
[INFO] [stdout] 116 |             spreadsheet_ods::Value::TextXml(v) => {}
[INFO] [stdout]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:117:46
[INFO] [stdout]     |
[INFO] [stdout] 117 |             spreadsheet_ods::Value::DateTime(v) => {}
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:118:50
[INFO] [stdout]     |
[INFO] [stdout] 118 |             spreadsheet_ods::Value::TimeDuration(v) => {}
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `return_vec` is never read
[INFO] [stdout]    --> src/main.rs:125:39
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let mut return_vec: Vec<String> = Vec::new();
[INFO] [stdout]     |                                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DATE` is never used
[INFO] [stdout]   --> src/main.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const DATE: &str = "99.99.24";
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_match` is never used
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn simple_match(participants : &Vec<String>, sheet : &Sheet) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.31s
[INFO] running `Command { std: "docker" "inspect" "80d9108022c22bb44704d82d65fc221b9c3a23f493fe35ae22d56154217ea4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80d9108022c22bb44704d82d65fc221b9c3a23f493fe35ae22d56154217ea4b7", kill_on_drop: false }`
[INFO] [stdout] 80d9108022c22bb44704d82d65fc221b9c3a23f493fe35ae22d56154217ea4b7
