[INFO] cloning repository https://github.com/duysmile/learn-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duysmile/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduysmile%2Flearn-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduysmile%2Flearn-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9bcfee8e3ff1db749c854a1a7a6731ea2b45eb1 [INFO] checking duysmile/learn-rust against master#db0e836148accac8a22532e3596ac612b63c2d8e for pr-139272 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduysmile%2Flearn-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/duysmile/learn-rust on toolchain db0e836148accac8a22532e3596ac612b63c2d8e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/duysmile/learn-rust [INFO] finished tweaking git repo https://github.com/duysmile/learn-rust [INFO] tweaked toml for git repo https://github.com/duysmile/learn-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/duysmile/learn-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" "+db0e836148accac8a22532e3596ac612b63c2d8e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d00e27e6d97d3a0ee6abb2bfafa5983b428983df455a7b45539498f605a26891 [INFO] running `Command { std: "docker" "start" "-a" "d00e27e6d97d3a0ee6abb2bfafa5983b428983df455a7b45539498f605a26891", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d00e27e6d97d3a0ee6abb2bfafa5983b428983df455a7b45539498f605a26891", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d00e27e6d97d3a0ee6abb2bfafa5983b428983df455a7b45539498f605a26891", kill_on_drop: false }` [INFO] [stdout] d00e27e6d97d3a0ee6abb2bfafa5983b428983df455a7b45539498f605a26891 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5bb7b4c79ef2dc66ab1077c8f93daad305f9e3fa0c686f1bdc8a2e1306303bb7 [INFO] running `Command { std: "docker" "start" "-a" "5bb7b4c79ef2dc66ab1077c8f93daad305f9e3fa0c686f1bdc8a2e1306303bb7", kill_on_drop: false }` [INFO] [stderr] Checking rust_exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/lession3/ex1.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let p = Point{x: 5, y : "hello".to_string()}; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/lession3/ex1.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 10 | y: String, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `diff2` [INFO] [stdout] --> src/lession2/ex1.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let diff2 = vec_diff(&diff, &v1); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_diff2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `both` [INFO] [stdout] --> src/lession3/ex4.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let both = d.get_both(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_both` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `diff2` [INFO] [stdout] --> src/lession2/ex1.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let diff2 = vec_diff(&diff, &v1); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_diff2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lession3/ex4.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let x = d.get_val1(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/lession3/ex4.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let y = d.get_val2(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `objetive` [INFO] [stdout] --> src/lession2/ex2.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let objetive = 3126.59; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_objetive` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `values_index_max` [INFO] [stdout] --> src/lession2/ex2.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let values_index_max = values_number - 1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_values_index_max` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `saltar` [INFO] [stdout] --> src/lession2/ex2.rs:28:17 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_saltar` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lession2/ex2.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut additions: &Vec = &vec![0]; [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/lession2/ex2.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `both` [INFO] [stdout] --> src/lession3/ex4.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let both = d.get_both(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_both` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lession3/ex4.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let x = d.get_val1(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/lession3/ex4.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let y = d.get_val2(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `AppendBar` is never used [INFO] [stdout] --> src/lession4/ex3.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | trait AppendBar { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `objetive` [INFO] [stdout] --> src/lession2/ex2.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let objetive = 3126.59; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_objetive` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `values_index_max` [INFO] [stdout] --> src/lession2/ex2.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let values_index_max = values_number - 1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_values_index_max` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `saltar` [INFO] [stdout] --> src/lession2/ex2.rs:28:17 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_saltar` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lession2/ex2.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut additions: &Vec = &vec![0]; [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/lession2/ex2.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/lession3/ex1.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let p = Point{x: 5, y : "hello".to_string()}; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/lession3/ex1.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 10 | y: String, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Price` is never used [INFO] [stdout] --> src/lession4/ex4.rs:13:7 [INFO] [stdout] | [INFO] [stdout] 13 | trait Price { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Store` is never constructed [INFO] [stdout] --> src/lession4/ex4.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | struct Store { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Item` is never constructed [INFO] [stdout] --> src/lession4/ex4.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | struct Item { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `add_item` are never used [INFO] [stdout] --> src/lession4/ex4.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 50 | impl Store { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 51 | fn new(name: String) -> Store { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn add_item(&mut self, item: Item) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_store` is never used [INFO] [stdout] --> src/lession4/ex4.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn build_store() -> Store { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Factory` is never constructed [INFO] [stdout] --> src/lession4/ex4.rs:87:8 [INFO] [stdout] | [INFO] [stdout] 87 | struct Factory { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_factory` is never used [INFO] [stdout] --> src/lession4/ex4.rs:102:4 [INFO] [stdout] | [INFO] [stdout] 102 | fn build_factory() -> Factory { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/lession4/ex4.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 39 | struct Store { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 40 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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" "5bb7b4c79ef2dc66ab1077c8f93daad305f9e3fa0c686f1bdc8a2e1306303bb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bb7b4c79ef2dc66ab1077c8f93daad305f9e3fa0c686f1bdc8a2e1306303bb7", kill_on_drop: false }` [INFO] [stdout] 5bb7b4c79ef2dc66ab1077c8f93daad305f9e3fa0c686f1bdc8a2e1306303bb7