[INFO] cloning repository https://github.com/leopico/Rust-crash-course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leopico/Rust-crash-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleopico%2FRust-crash-course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleopico%2FRust-crash-course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b21e337357d4066e40b563d1b7dfaf569849817
[INFO] checking leopico/Rust-crash-course against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleopico%2FRust-crash-course" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/leopico/Rust-crash-course
[INFO] finished tweaking git repo https://github.com/leopico/Rust-crash-course
[INFO] tweaked toml for git repo https://github.com/leopico/Rust-crash-course written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/leopico/Rust-crash-course on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/leopico/Rust-crash-course 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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47456b70f148abf5eceaec9c1bba57ae02bf63444795b8d071db8cfcfb4e20ea
[INFO] running `Command { std: "docker" "start" "-a" "47456b70f148abf5eceaec9c1bba57ae02bf63444795b8d071db8cfcfb4e20ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47456b70f148abf5eceaec9c1bba57ae02bf63444795b8d071db8cfcfb4e20ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47456b70f148abf5eceaec9c1bba57ae02bf63444795b8d071db8cfcfb4e20ea", kill_on_drop: false }`
[INFO] [stdout] 47456b70f148abf5eceaec9c1bba57ae02bf63444795b8d071db8cfcfb4e20ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dac801f62343bba137f550fd263e17e1e66a34ceb7461f2f0e00ed83111d8515
[INFO] running `Command { std: "docker" "start" "-a" "dac801f62343bba137f550fd263e17e1e66a34ceb7461f2f0e00ed83111d8515", kill_on_drop: false }`
[INFO] [stderr]     Checking backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `depth` and `width` are never read
[INFO] [stdout]  --> src/bin/struct-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ShippingBox {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 2 |     depth: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     width: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Percent` is never constructed
[INFO] [stdout]  --> src/bin/enum-2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 2 |     Flat(i32),
[INFO] [stdout] 3 |     Percent(i32),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Left` and `Up` are never constructed
[INFO] [stdout]  --> src/bin/enum-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Direciton {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 2 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 3 |     Right,
[INFO] [stdout] 4 |     Up,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `email` is never read
[INFO] [stdout]  --> src/bin/option-0.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Customer {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 2 |     age: Option<i32>,
[INFO] [stdout] 3 |     email: 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: unused variable: `is_lt_5`
[INFO] [stdout]  --> src/bin/expression-0.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let is_lt_5 = if my_num < 5 { true } else { false };
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_lt_5`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/bin/expression-0.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let message = match my_num {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paid`
[INFO] [stdout]   --> src/bin/expression-0.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let paid = true;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_paid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `order_placed`
[INFO] [stdout]   --> src/bin/expression-0.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let order_placed = match item {
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_placed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Burger` and `Fries` are never constructed
[INFO] [stdout]  --> src/bin/expression-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Menu {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 2 |     Burger,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 3 |     Fries,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Manager` and `Supervisor` are never constructed
[INFO] [stdout]  --> src/bin/derive-0.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Position {
[INFO] [stdout]   |      -------- variants in this enum
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Percent` is never constructed
[INFO] [stdout]  --> src/bin/enum-2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 2 |     Flat(i32),
[INFO] [stdout] 3 |     Percent(i32),
[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 `position` and `work_hours` are never read
[INFO] [stdout]   --> src/bin/derive-0.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct Employee {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 10 |     position: Position,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 11 |     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: variants `Manager` and `Supervisor` are never constructed
[INFO] [stdout]  --> src/bin/derive-0.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Position {
[INFO] [stdout]   |      -------- variants in this enum
[INFO] [stdout] 3 |     Manager,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `work_hours` are never read
[INFO] [stdout]   --> src/bin/derive-0.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct Employee {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 10 |     position: Position,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 11 |     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: `emp`
[INFO] [stdout]  --> src/bin/string-1.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `emp_from`
[INFO] [stdout]  --> src/bin/string-1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let emp_from = Employee { name: emp_nam_from };
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_emp_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/bin/string-1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Employee {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 2 |     name: 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: unused variable: `emp`
[INFO] [stdout]  --> src/bin/string-1.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `emp_from`
[INFO] [stdout]  --> src/bin/string-1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let emp_from = Employee { name: emp_nam_from };
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_emp_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/bin/string-1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Employee {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 2 |     name: 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: variants `Red` and `Yellow` are never constructed
[INFO] [stdout]  --> src/bin/enum-1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 2 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 3 |     Yellow,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]  --> src/bin/documentation.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Color {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mail` is never constructed
[INFO] [stdout]  --> src/bin/documentation.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Mail {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]  --> src/bin/documentation.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Color {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mail` is never constructed
[INFO] [stdout]  --> src/bin/documentation.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Mail {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]  --> src/bin/hashmap-1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Contents {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 5 |     content: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Contents` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red` and `Yellow` are never constructed
[INFO] [stdout]  --> src/bin/enum-1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 2 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 3 |     Yellow,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Admin`, `Manager`, and `User` are never constructed
[INFO] [stdout]  --> src/bin/expression-1.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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bright` is never constructed
[INFO] [stdout]  --> src/bin/ownership-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Light {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] 2 |     Bright,
[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 variable: `x`
[INFO] [stdout]  --> src/bin/tuples-1.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (x, y) = coordinate();
[INFO] [stdout]   |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Admin`, `Manager`, and `User` are never constructed
[INFO] [stdout]  --> src/bin/expression-1.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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `depth` and `width` are never read
[INFO] [stdout]  --> src/bin/struct-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ShippingBox {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 2 |     depth: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     width: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]  --> src/bin/hashmap-1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Contents {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 5 |     content: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Contents` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/bin/tuples-1.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (x, y) = coordinate();
[INFO] [stdout]   |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `email` is never read
[INFO] [stdout]  --> src/bin/option-0.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Customer {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 2 |     age: Option<i32>,
[INFO] [stdout] 3 |     email: 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: unused variable: `is_lt_5`
[INFO] [stdout]  --> src/bin/expression-0.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let is_lt_5 = if my_num < 5 { true } else { false };
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_lt_5`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/bin/expression-0.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let message = match my_num {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paid`
[INFO] [stdout]   --> src/bin/expression-0.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let paid = true;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_paid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `order_placed`
[INFO] [stdout]   --> src/bin/expression-0.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let order_placed = match item {
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_placed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Burger` and `Fries` are never constructed
[INFO] [stdout]  --> src/bin/expression-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Menu {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 2 |     Burger,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 3 |     Fries,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Left` and `Up` are never constructed
[INFO] [stdout]  --> src/bin/enum-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Direciton {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 2 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 3 |     Right,
[INFO] [stdout] 4 |     Up,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bright` is never constructed
[INFO] [stdout]  --> src/bin/ownership-0.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Light {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] 2 |     Bright,
[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 0.33s
[INFO] running `Command { std: "docker" "inspect" "dac801f62343bba137f550fd263e17e1e66a34ceb7461f2f0e00ed83111d8515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dac801f62343bba137f550fd263e17e1e66a34ceb7461f2f0e00ed83111d8515", kill_on_drop: false }`
[INFO] [stdout] dac801f62343bba137f550fd263e17e1e66a34ceb7461f2f0e00ed83111d8515