[INFO] cloning repository https://github.com/aochagavia/rust-syntax-cheat-sheet [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aochagavia/rust-syntax-cheat-sheet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Frust-syntax-cheat-sheet", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Frust-syntax-cheat-sheet'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 61962ddbc2996b1dcbed8f58150e420058f1ddf9 [INFO] testing aochagavia/rust-syntax-cheat-sheet against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Frust-syntax-cheat-sheet" "/workspace/builds/worker-66/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-66/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aochagavia/rust-syntax-cheat-sheet on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aochagavia/rust-syntax-cheat-sheet [INFO] finished tweaking git repo https://github.com/aochagavia/rust-syntax-cheat-sheet [INFO] tweaked toml for git repo https://github.com/aochagavia/rust-syntax-cheat-sheet written to /workspace/builds/worker-66/source/Cargo.toml [INFO] crate git repo https://github.com/aochagavia/rust-syntax-cheat-sheet already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] df7538c13517094e3d9f8f32eac927ca5bd6f8079c8fc4be3a038d9384cbd804 [INFO] running `Command { std: "docker" "start" "-a" "df7538c13517094e3d9f8f32eac927ca5bd6f8079c8fc4be3a038d9384cbd804", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "df7538c13517094e3d9f8f32eac927ca5bd6f8079c8fc4be3a038d9384cbd804", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df7538c13517094e3d9f8f32eac927ca5bd6f8079c8fc4be3a038d9384cbd804", kill_on_drop: false }` [INFO] [stdout] df7538c13517094e3d9f8f32eac927ca5bd6f8079c8fc4be3a038d9384cbd804 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e980d384ed6b8bbd9dee7c858ff59e3d771075bbe23b5778e5ba7fa14c7be97b [INFO] running `Command { std: "docker" "start" "-a" "e980d384ed6b8bbd9dee7c858ff59e3d771075bbe23b5778e5ba7fa14c7be97b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling syntax v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let x: i32 = 42; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `implicit_x` [INFO] [stdout] --> src/main.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let implicit_x = 1; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_implicit_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `implicit_f` [INFO] [stdout] --> src/main.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let implicit_f = 1.3; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_implicit_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mutable` is assigned to, but never used [INFO] [stdout] --> src/main.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let mut mutable = 1; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_mutable` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mutable` is never read [INFO] [stdout] --> src/main.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | mutable += 2; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `four_ints` [INFO] [stdout] --> src/main.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let four_ints: [i32; 4] = [1, 2, 3, 4]; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_four_ints` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `origin` [INFO] [stdout] --> src/main.rs:108:9 [INFO] [stdout] | [INFO] [stdout] 108 | let origin = Point { x: 0, y: 0 }; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `origin2` [INFO] [stdout] --> src/main.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 113 | let origin2 = Point2(0, 0); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `up` [INFO] [stdout] --> src/main.rs:144:9 [INFO] [stdout] | [INFO] [stdout] 144 | let up = Direction::Up; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_up` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `two` [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | let two: OptionalI32 = OptionalI32::AnI32(2); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_two` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nothing` [INFO] [stdout] --> src/main.rs:153:9 [INFO] [stdout] | [INFO] [stdout] 153 | let nothing = OptionalI32::Nothing; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nothing` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:266:9 [INFO] [stdout] | [INFO] [stdout] 266 | let value = if true { "good" } else { "bad" }; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_ref_var` [INFO] [stdout] --> src/main.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 296 | let another_ref_var = &var; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_ref_var` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:294:9 [INFO] [stdout] | [INFO] [stdout] 294 | let mut var = 4; [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: function is never used: `add_ints` [INFO] [stdout] --> src/main.rs:17:4 [INFO] [stdout] | [INFO] [stdout] 17 | fn add_ints(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_uints` [INFO] [stdout] --> src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn add_uints(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Left` [INFO] [stdout] --> src/main.rs:138:9 [INFO] [stdout] | [INFO] [stdout] 138 | Left, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Right` [INFO] [stdout] --> src/main.rs:139:9 [INFO] [stdout] | [INFO] [stdout] 139 | Right, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Down` [INFO] [stdout] --> src/main.rs:141:9 [INFO] [stdout] | [INFO] [stdout] 141 | Down, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:158:12 [INFO] [stdout] | [INFO] [stdout] 158 | fn new(x: i32) -> OptionalI32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Foo` [INFO] [stdout] --> src/main.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | struct Foo { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `identity` [INFO] [stdout] --> src/main.rs:215:8 [INFO] [stdout] | [INFO] [stdout] 215 | fn identity(x: T) -> T { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.18s [INFO] [stdout] warning: 22 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e980d384ed6b8bbd9dee7c858ff59e3d771075bbe23b5778e5ba7fa14c7be97b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e980d384ed6b8bbd9dee7c858ff59e3d771075bbe23b5778e5ba7fa14c7be97b", kill_on_drop: false }` [INFO] [stdout] e980d384ed6b8bbd9dee7c858ff59e3d771075bbe23b5778e5ba7fa14c7be97b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5379b0ded9bd900e11b540eaaf3d8aa22084bf2beb6a1c4dac3bcbabd326eff6 [INFO] running `Command { std: "docker" "start" "-a" "5379b0ded9bd900e11b540eaaf3d8aa22084bf2beb6a1c4dac3bcbabd326eff6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling syntax v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let x: i32 = 42; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `implicit_x` [INFO] [stdout] --> src/main.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let implicit_x = 1; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_implicit_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `implicit_f` [INFO] [stdout] --> src/main.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let implicit_f = 1.3; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_implicit_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mutable` is assigned to, but never used [INFO] [stdout] --> src/main.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let mut mutable = 1; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_mutable` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mutable` is never read [INFO] [stdout] --> src/main.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | mutable += 2; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `four_ints` [INFO] [stdout] --> src/main.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let four_ints: [i32; 4] = [1, 2, 3, 4]; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_four_ints` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `origin` [INFO] [stdout] --> src/main.rs:108:9 [INFO] [stdout] | [INFO] [stdout] 108 | let origin = Point { x: 0, y: 0 }; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `origin2` [INFO] [stdout] --> src/main.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 113 | let origin2 = Point2(0, 0); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `up` [INFO] [stdout] --> src/main.rs:144:9 [INFO] [stdout] | [INFO] [stdout] 144 | let up = Direction::Up; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_up` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `two` [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | let two: OptionalI32 = OptionalI32::AnI32(2); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_two` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nothing` [INFO] [stdout] --> src/main.rs:153:9 [INFO] [stdout] | [INFO] [stdout] 153 | let nothing = OptionalI32::Nothing; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nothing` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:266:9 [INFO] [stdout] | [INFO] [stdout] 266 | let value = if true { "good" } else { "bad" }; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_ref_var` [INFO] [stdout] --> src/main.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 296 | let another_ref_var = &var; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_ref_var` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:294:9 [INFO] [stdout] | [INFO] [stdout] 294 | let mut var = 4; [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: function is never used: `add_ints` [INFO] [stdout] --> src/main.rs:17:4 [INFO] [stdout] | [INFO] [stdout] 17 | fn add_ints(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_uints` [INFO] [stdout] --> src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn add_uints(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.74s [INFO] running `Command { std: "docker" "inspect" "5379b0ded9bd900e11b540eaaf3d8aa22084bf2beb6a1c4dac3bcbabd326eff6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5379b0ded9bd900e11b540eaaf3d8aa22084bf2beb6a1c4dac3bcbabd326eff6", kill_on_drop: false }` [INFO] [stdout] 5379b0ded9bd900e11b540eaaf3d8aa22084bf2beb6a1c4dac3bcbabd326eff6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7c90b69659446c0be49cefffb147f197368818061ea38fdf7cf5e420cc5a3223 [INFO] running `Command { std: "docker" "start" "-a" "7c90b69659446c0be49cefffb147f197368818061ea38fdf7cf5e420cc5a3223", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:32:9 [INFO] [stderr] | [INFO] [stderr] 32 | let x: i32 = 42; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `implicit_x` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let implicit_x = 1; [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_implicit_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `implicit_f` [INFO] [stderr] --> src/main.rs:42:9 [INFO] [stderr] | [INFO] [stderr] 42 | let implicit_f = 1.3; [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_implicit_f` [INFO] [stderr] [INFO] [stderr] warning: variable `mutable` is assigned to, but never used [INFO] [stderr] --> src/main.rs:45:13 [INFO] [stderr] | [INFO] [stderr] 45 | let mut mutable = 1; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_mutable` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/main.rs:47:5 [INFO] [stderr] | [INFO] [stderr] 47 | mutable += 2; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `four_ints` [INFO] [stderr] --> src/main.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | let four_ints: [i32; 4] = [1, 2, 3, 4]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_four_ints` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin` [INFO] [stderr] --> src/main.rs:108:9 [INFO] [stderr] | [INFO] [stderr] 108 | let origin = Point { x: 0, y: 0 }; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin2` [INFO] [stderr] --> src/main.rs:113:9 [INFO] [stderr] | [INFO] [stderr] 113 | let origin2 = Point2(0, 0); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `up` [INFO] [stderr] --> src/main.rs:144:9 [INFO] [stderr] | [INFO] [stderr] 144 | let up = Direction::Up; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_up` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `two` [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 152 | let two: OptionalI32 = OptionalI32::AnI32(2); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_two` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nothing` [INFO] [stderr] --> src/main.rs:153:9 [INFO] [stderr] | [INFO] [stderr] 153 | let nothing = OptionalI32::Nothing; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nothing` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/main.rs:266:9 [INFO] [stderr] | [INFO] [stderr] 266 | let value = if true { "good" } else { "bad" }; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `another_ref_var` [INFO] [stderr] --> src/main.rs:296:9 [INFO] [stderr] | [INFO] [stderr] 296 | let another_ref_var = &var; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_ref_var` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:294:9 [INFO] [stderr] | [INFO] [stderr] 294 | let mut var = 4; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `add_ints` [INFO] [stderr] --> src/main.rs:17:4 [INFO] [stderr] | [INFO] [stderr] 17 | fn add_ints(x: i32, y: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `add_uints` [INFO] [stderr] --> src/main.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn add_uints(x: i32, y: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `syntax` (bin "syntax" test) generated 16 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/syntax-3d2a24f2dd2a5e3e) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test a_unit_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "7c90b69659446c0be49cefffb147f197368818061ea38fdf7cf5e420cc5a3223", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c90b69659446c0be49cefffb147f197368818061ea38fdf7cf5e420cc5a3223", kill_on_drop: false }` [INFO] [stdout] 7c90b69659446c0be49cefffb147f197368818061ea38fdf7cf5e420cc5a3223