[INFO] cloning repository https://github.com/MohammadProAcc/rust_by_examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MohammadProAcc/rust_by_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMohammadProAcc%2Frust_by_examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMohammadProAcc%2Frust_by_examples'... 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[INFO] validating manifest of git repo https://github.com/MohammadProAcc/rust_by_examples on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MohammadProAcc/rust_by_examples [INFO] finished tweaking git repo https://github.com/MohammadProAcc/rust_by_examples [INFO] tweaked toml for git repo https://github.com/MohammadProAcc/rust_by_examples written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/MohammadProAcc/rust_by_examples 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 17d4252966621a6445749f68434e36b1432f0f87d7be4b25991543cae5b7e932 [INFO] running `Command { std: "docker" "start" "-a" "17d4252966621a6445749f68434e36b1432f0f87d7be4b25991543cae5b7e932", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "17d4252966621a6445749f68434e36b1432f0f87d7be4b25991543cae5b7e932", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17d4252966621a6445749f68434e36b1432f0f87d7be4b25991543cae5b7e932", kill_on_drop: false }` [INFO] [stdout] 17d4252966621a6445749f68434e36b1432f0f87d7be4b25991543cae5b7e932 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a9dabbfbbd1012c8c87439ee9c873c181040aa3632880ee5400501b1402d2b7e [INFO] running `Command { std: "docker" "start" "-a" "a9dabbfbbd1012c8c87439ee9c873c181040aa3632880ee5400501b1402d2b7e", kill_on_drop: false }` [INFO] [stderr] Checking rust_by_examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Display` [INFO] [stdout] --> src/formatted_print/min_max.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{self, Display}; // Import `fmt` [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Display` [INFO] [stdout] --> src/formatted_print/min_max.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{self, Display}; // Import `fmt` [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `logical` [INFO] [stdout] --> src/primitives/scalars.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let logical: bool = true; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a_float` [INFO] [stdout] --> src/primitives/scalars.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let a_float: f64 = 1.0; // Regular annotation [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `an_integer` [INFO] [stdout] --> src/primitives/scalars.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let an_integer = 5i32; // Suffix annotation [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `default_float` [INFO] [stdout] --> src/primitives/scalars.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let default_float = 3.0; // `f64` [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `default_integer` [INFO] [stdout] --> src/primitives/scalars.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let default_integer = 7; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `inferred_type` is assigned to, but never used [INFO] [stdout] --> src/primitives/scalars.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut inferred_type = 12; // Type i64 is inferred from another line [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_inferred_type` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `inferred_type` is never read [INFO] [stdout] --> src/primitives/scalars.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | inferred_type = 4294967296i64; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mutable` is assigned to, but never used [INFO] [stdout] --> src/primitives/scalars.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let mut mutable = 12; // Mutable `i32` [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/primitives/scalars.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | mutable = 21; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mutable` [INFO] [stdout] --> src/primitives/scalars.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let mutable = true; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/primitives/enums/type_alias.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let x = Operations::Add; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/formatted_print/debug.rs:4:18 [INFO] [stdout] | [INFO] [stdout] 4 | struct Structure(i32); [INFO] [stdout] | --------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/formatted_print/debug.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | struct Deep(Structure); [INFO] [stdout] | ---- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/formatted_print/test.rs:3:17 [INFO] [stdout] | [INFO] [stdout] 3 | struct Test(i32); [INFO] [stdout] | ---- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MinMax` is never constructed [INFO] [stdout] --> src/formatted_print/min_max.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct MinMax(i64, i64); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point2D` is never constructed [INFO] [stdout] --> src/formatted_print/min_max.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Point2D { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Matrix` is never constructed [INFO] [stdout] --> src/primitives/tuple.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Matrix(f32, f32, f32, f32); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Subtract` is never constructed [INFO] [stdout] --> src/primitives/enums/type_alias.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 1 | enum VeryVerboseEnumOfThingsToDoWithNumbers { [INFO] [stdout] | -------------------------------------- variant in this enum [INFO] [stdout] 2 | Add, [INFO] [stdout] 3 | Subtract, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `logical` [INFO] [stdout] --> src/primitives/scalars.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let logical: bool = true; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a_float` [INFO] [stdout] --> src/primitives/scalars.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let a_float: f64 = 1.0; // Regular annotation [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `an_integer` [INFO] [stdout] --> src/primitives/scalars.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let an_integer = 5i32; // Suffix annotation [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `default_float` [INFO] [stdout] --> src/primitives/scalars.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let default_float = 3.0; // `f64` [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `default_integer` [INFO] [stdout] --> src/primitives/scalars.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let default_integer = 7; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `inferred_type` is assigned to, but never used [INFO] [stdout] --> src/primitives/scalars.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut inferred_type = 12; // Type i64 is inferred from another line [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_inferred_type` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `inferred_type` is never read [INFO] [stdout] --> src/primitives/scalars.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | inferred_type = 4294967296i64; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mutable` is assigned to, but never used [INFO] [stdout] --> src/primitives/scalars.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let mut mutable = 12; // Mutable `i32` [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/primitives/scalars.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | mutable = 21; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mutable` [INFO] [stdout] --> src/primitives/scalars.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let mutable = true; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/primitives/enums/type_alias.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let x = Operations::Add; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/formatted_print/debug.rs:4:18 [INFO] [stdout] | [INFO] [stdout] 4 | struct Structure(i32); [INFO] [stdout] | --------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/formatted_print/debug.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | struct Deep(Structure); [INFO] [stdout] | ---- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/formatted_print/test.rs:3:17 [INFO] [stdout] | [INFO] [stdout] 3 | struct Test(i32); [INFO] [stdout] | ---- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MinMax` is never constructed [INFO] [stdout] --> src/formatted_print/min_max.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct MinMax(i64, i64); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point2D` is never constructed [INFO] [stdout] --> src/formatted_print/min_max.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Point2D { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Matrix` is never constructed [INFO] [stdout] --> src/primitives/tuple.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Matrix(f32, f32, f32, f32); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Subtract` is never constructed [INFO] [stdout] --> src/primitives/enums/type_alias.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 1 | enum VeryVerboseEnumOfThingsToDoWithNumbers { [INFO] [stdout] | -------------------------------------- variant in this enum [INFO] [stdout] 2 | Add, [INFO] [stdout] 3 | Subtract, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `Command { std: "docker" "inspect" "a9dabbfbbd1012c8c87439ee9c873c181040aa3632880ee5400501b1402d2b7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9dabbfbbd1012c8c87439ee9c873c181040aa3632880ee5400501b1402d2b7e", kill_on_drop: false }` [INFO] [stdout] a9dabbfbbd1012c8c87439ee9c873c181040aa3632880ee5400501b1402d2b7e