[INFO] cloning repository https://github.com/victor-devv/hello-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/victor-devv/hello-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictor-devv%2Fhello-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictor-devv%2Fhello-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4feced3f1a657d41e5c8305b2a80793be0a5000
[INFO] checking victor-devv/hello-rust against master#9c3064e131f4939cc95a29bb11413c49bbda1491 for pr-144098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictor-devv%2Fhello-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/victor-devv/hello-rust
[INFO] finished tweaking git repo https://github.com/victor-devv/hello-rust
[INFO] tweaked toml for git repo https://github.com/victor-devv/hello-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/victor-devv/hello-rust on toolchain 9c3064e131f4939cc95a29bb11413c49bbda1491
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/victor-devv/hello-rust 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" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking victor-devv/hello-rust against master#9c3064e131f4939cc95a29bb11413c49bbda1491 for pr-144098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictor-devv%2Fhello-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/victor-devv/hello-rust
[INFO] finished tweaking git repo https://github.com/victor-devv/hello-rust
[INFO] tweaked toml for git repo https://github.com/victor-devv/hello-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/victor-devv/hello-rust on toolchain 9c3064e131f4939cc95a29bb11413c49bbda1491
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/victor-devv/hello-rust 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" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cd52a6cf0886164f875a07d7960ac0fc8accccd14b9b59b1d599ff6329e9d42
[INFO] running `Command { std: "docker" "start" "-a" "0cd52a6cf0886164f875a07d7960ac0fc8accccd14b9b59b1d599ff6329e9d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cd52a6cf0886164f875a07d7960ac0fc8accccd14b9b59b1d599ff6329e9d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd52a6cf0886164f875a07d7960ac0fc8accccd14b9b59b1d599ff6329e9d42", kill_on_drop: false }`
[INFO] [stdout] 0cd52a6cf0886164f875a07d7960ac0fc8accccd14b9b59b1d599ff6329e9d42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da0188fcdd2f7078bbc382abd72063640ad082ffc04955437c573e5f27e9b582
[INFO] running `Command { std: "docker" "start" "-a" "da0188fcdd2f7078bbc382abd72063640ad082ffc04955437c573e5f27e9b582", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Admin`, `Manager`, and `User` are never constructed
[INFO] [stdout]  --> src/bin/expressions.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Access {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Admin,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     User,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `employee`
[INFO] [stdout]   --> src/bin/tuples.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (employee, access) = ("Victor", Access::Full);
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_employee`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `access`
[INFO] [stdout]   --> src/bin/tuples.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (employee, access) = ("Victor", Access::Full);
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_access`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `emp`
[INFO] [stdout]   --> src/bin/strings.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let emp = Employee { name: emp_name };
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_emp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/bin/strings.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Employee {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 13 |     //use String not &str
[INFO] [stdout] 14 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Manager` and `Supervisor` are never constructed
[INFO] [stdout]   --> src/bin/derive.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum Position {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 10 |     Manager,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 11 |     Supervisor,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Position` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `work_hours` is never read
[INFO] [stdout]   --> src/bin/derive.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Employee {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 17 |     position: Position,
[INFO] [stdout] 18 |     work_hours: i64
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Employee` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]  --> src/bin/type-annotations.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn print_many(msg: &str, count: i32) {
[INFO] [stdout]   |               ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]  --> src/bin/type-annotations.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn print_many(msg: &str, count: i32) {
[INFO] [stdout]   |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `employee`
[INFO] [stdout]   --> src/bin/tuples.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (employee, access) = ("Victor", Access::Full);
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_employee`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `access`
[INFO] [stdout]   --> src/bin/tuples.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (employee, access) = ("Victor", Access::Full);
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_access`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]   --> src/bin/type-annotations.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let num: i32 = 15;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/bin/type-annotations.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let a: char = 'a';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_click`
[INFO] [stdout]   --> src/bin/type-annotations.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let left_click: MouseClicks = MouseClicks::LeftClick;
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_click`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> src/bin/type-annotations.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let numbers: Vec<i32> = vec![1, 2, 3];
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `letters`
[INFO] [stdout]   --> src/bin/type-annotations.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let letters: Vec<char> = vec!['a', 'b', 'c'];
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_letters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `clicks`
[INFO] [stdout]   --> src/bin/type-annotations.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let clicks: Vec<MouseClicks> = vec![
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_clicks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_many` is never used
[INFO] [stdout]  --> src/bin/type-annotations.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn print_many(msg: &str, count: i32) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `two`
[INFO] [stdout]   --> src/bin/vector.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let two = my_numbers[1];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_two`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]  --> src/bin/type-annotations.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn print_many(msg: &str, count: i32) {
[INFO] [stdout]   |               ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]  --> src/bin/type-annotations.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn print_many(msg: &str, count: i32) {
[INFO] [stdout]   |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]   --> src/bin/type-annotations.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let num: i32 = 15;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/bin/type-annotations.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let a: char = 'a';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_click`
[INFO] [stdout]   --> src/bin/type-annotations.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let left_click: MouseClicks = MouseClicks::LeftClick;
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_click`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> src/bin/type-annotations.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let numbers: Vec<i32> = vec![1, 2, 3];
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `letters`
[INFO] [stdout]   --> src/bin/type-annotations.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let letters: Vec<char> = vec!['a', 'b', 'c'];
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_letters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `clicks`
[INFO] [stdout]   --> src/bin/type-annotations.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let clicks: Vec<MouseClicks> = vec![
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_clicks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_many` is never used
[INFO] [stdout]  --> src/bin/type-annotations.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn print_many(msg: &str, count: i32) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Right` is never constructed
[INFO] [stdout]  --> src/bin/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Direction {
[INFO] [stdout]   |      --------- variant in this enum
[INFO] [stdout] 2 |     Left,
[INFO] [stdout] 3 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Right` is never constructed
[INFO] [stdout]  --> src/bin/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Direction {
[INFO] [stdout]   |      --------- variant in this enum
[INFO] [stdout] 2 |     Left,
[INFO] [stdout] 3 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Percent` is never constructed
[INFO] [stdout]  --> src/bin/match-advanced.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 3 |     Percent(i32),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `emp`
[INFO] [stdout]   --> src/bin/strings.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let emp = Employee { name: emp_name };
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_emp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/bin/strings.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Employee {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 13 |     //use String not &str
[INFO] [stdout] 14 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Admin`, `Manager`, and `User` are never constructed
[INFO] [stdout]  --> src/bin/expressions.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Access {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Admin,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     User,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]  --> src/bin/arithmetic.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let sum = 2 + 2;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]  --> src/bin/arithmetic.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let value = 10 - 5;
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `division`
[INFO] [stdout]  --> src/bin/arithmetic.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let division = 10 / 2;
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mult`
[INFO] [stdout]  --> src/bin/arithmetic.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mult = 5 * 5;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `five`
[INFO] [stdout]   --> src/bin/arithmetic.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let five = sub(8, 3);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_five`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rem`
[INFO] [stdout]   --> src/bin/arithmetic.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let rem = 6 % 3;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rem2`
[INFO] [stdout]   --> src/bin/arithmetic.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let rem2 = 6 % 4;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rem2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Manager` and `Supervisor` are never constructed
[INFO] [stdout]   --> src/bin/derive.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum Position {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 10 |     Manager,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 11 |     Supervisor,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Position` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `work_hours` is never read
[INFO] [stdout]   --> src/bin/derive.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Employee {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 17 |     position: Position,
[INFO] [stdout] 18 |     work_hours: i64
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Employee` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Percent` is never constructed
[INFO] [stdout]  --> src/bin/match-advanced.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 3 |     Percent(i32),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `two`
[INFO] [stdout]   --> src/bin/vector.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let two = my_numbers[1];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_two`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]  --> src/bin/arithmetic.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let sum = 2 + 2;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]  --> src/bin/arithmetic.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let value = 10 - 5;
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `division`
[INFO] [stdout]  --> src/bin/arithmetic.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let division = 10 / 2;
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mult`
[INFO] [stdout]  --> src/bin/arithmetic.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mult = 5 * 5;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `five`
[INFO] [stdout]   --> src/bin/arithmetic.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let five = sub(8, 3);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_five`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rem`
[INFO] [stdout]   --> src/bin/arithmetic.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let rem = 6 % 3;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rem2`
[INFO] [stdout]   --> src/bin/arithmetic.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let rem2 = 6 % 4;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rem2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "da0188fcdd2f7078bbc382abd72063640ad082ffc04955437c573e5f27e9b582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da0188fcdd2f7078bbc382abd72063640ad082ffc04955437c573e5f27e9b582", kill_on_drop: false }`
[INFO] [stdout] da0188fcdd2f7078bbc382abd72063640ad082ffc04955437c573e5f27e9b582