[INFO] cloning repository https://github.com/JustUzair/rust-101-to-expert [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JustUzair/rust-101-to-expert" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustUzair%2Frust-101-to-expert", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustUzair%2Frust-101-to-expert'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1b58fe53e36183771749a7021c9eca6bce9c995c [INFO] checking JustUzair/rust-101-to-expert against master#9e293ae9f8abecb0be5105787d181518c9012a19 for pr-146440-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustUzair%2Frust-101-to-expert" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/JustUzair/rust-101-to-expert [INFO] finished tweaking git repo https://github.com/JustUzair/rust-101-to-expert [INFO] tweaked toml for git repo https://github.com/JustUzair/rust-101-to-expert written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/JustUzair/rust-101-to-expert on toolchain 9e293ae9f8abecb0be5105787d181518c9012a19 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/JustUzair/rust-101-to-expert 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" "+9e293ae9f8abecb0be5105787d181518c9012a19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded windows-targets v0.52.6 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.93 [INFO] [stderr] Downloaded android_system_properties v0.1.5 [INFO] [stderr] Downloaded iana-time-zone-haiku v0.1.2 [INFO] [stderr] Downloaded android-tzdata v0.1.1 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.93 [INFO] [stderr] Downloaded iana-time-zone v0.1.60 [INFO] [stderr] Downloaded autocfg v1.3.0 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.93 [INFO] [stderr] Downloaded quote v1.0.37 [INFO] [stderr] Downloaded chrono v0.4.38 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.93 [INFO] [stderr] Downloaded log v0.4.22 [INFO] [stderr] Downloaded proc-macro2 v1.0.86 [INFO] [stderr] Downloaded num-traits v0.2.19 [INFO] [stderr] Downloaded windows-core v0.52.0 [INFO] [stderr] Downloaded js-sys v0.3.70 [INFO] [stderr] Downloaded wasm-bindgen v0.2.93 [INFO] [stderr] Downloaded bumpalo v3.16.0 [INFO] [stderr] Downloaded cc v1.1.18 [INFO] [stderr] Downloaded syn v2.0.77 [INFO] [stderr] Downloaded windows_x86_64_gnullvm v0.52.6 [INFO] [stderr] Downloaded windows_aarch64_gnullvm v0.52.6 [INFO] [stderr] Downloaded windows_i686_gnullvm v0.52.6 [INFO] [stderr] Downloaded libc v0.2.158 [INFO] [stderr] Downloaded windows_x86_64_msvc v0.52.6 [INFO] [stderr] Downloaded windows_x86_64_gnu v0.52.6 [INFO] [stderr] Downloaded windows_aarch64_msvc v0.52.6 [INFO] [stderr] Downloaded windows_i686_gnu v0.52.6 [INFO] [stderr] Downloaded windows_i686_msvc v0.52.6 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d8b5b854772c32565c747e669b47203840b55827a0dcdcd43bfb684b7dd2d8be [INFO] running `Command { std: "docker" "start" "-a" "d8b5b854772c32565c747e669b47203840b55827a0dcdcd43bfb684b7dd2d8be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d8b5b854772c32565c747e669b47203840b55827a0dcdcd43bfb684b7dd2d8be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8b5b854772c32565c747e669b47203840b55827a0dcdcd43bfb684b7dd2d8be", kill_on_drop: false }` [INFO] [stdout] d8b5b854772c32565c747e669b47203840b55827a0dcdcd43bfb684b7dd2d8be [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3ffdd4a1109821d91e858b7ba0ca43bb121dc60e184c643bc453996d44de54cf [INFO] running `Command { std: "docker" "start" "-a" "3ffdd4a1109821d91e858b7ba0ca43bb121dc60e184c643bc453996d44de54cf", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking chrono v0.4.38 [INFO] [stderr] Checking Rust-Learning v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `traits::Animal` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use traits::Animal; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::Animal` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use traits::Animal; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `option_1` is never read [INFO] [stdout] --> src/options.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | let mut option_1 :Option = None; [INFO] [stdout] | ^^^^ this value is reassigned later and never used [INFO] [stdout] 3 | option_1 = Some(5); [INFO] [stdout] | ------------------ `option_1` is overwritten here before the previous value is read [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `option_1` is never read [INFO] [stdout] --> src/options.rs:8:40 [INFO] [stdout] | [INFO] [stdout] 8 | let mut option_1 :Option = None; [INFO] [stdout] | ^^^^ this value is reassigned later and never used [INFO] [stdout] 9 | option_1 = Some("Option Enum with Type String".to_string()); [INFO] [stdout] | -------- `option_1` is overwritten here before the previous value is read [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `option_1` is never read [INFO] [stdout] --> src/options.rs:21:45 [INFO] [stdout] | [INFO] [stdout] 21 | let mut option_1 :CustomCharacterEnum = CustomCharacterEnum::None; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used [INFO] [stdout] 22 | option_1 = CustomCharacterEnum::Archer; [INFO] [stdout] | -------------------------------------- `option_1` is overwritten here before the previous value is read [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Red`, `Blue`, `Green`, `Black`, and `White` are never constructed [INFO] [stdout] --> src/custom_struct.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | enum VehicleColor { [INFO] [stdout] | ------------ variants in this enum [INFO] [stdout] 9 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] 10 | Blue, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 12 | Black, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 13 | White, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `VehicleColor` 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: fields `color`, `model`, and `company` are never read [INFO] [stdout] --> src/custom_struct.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Vehicle { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 18 | color: VehicleColor, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 19 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 20 | company: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Vehicle` 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 `TupleUser` is never constructed [INFO] [stdout] --> src/custom_struct.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | struct TupleUser(String, u8, String); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `option_1` is never read [INFO] [stdout] --> src/options.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | let mut option_1 :Option = None; [INFO] [stdout] | ^^^^ this value is reassigned later and never used [INFO] [stdout] 3 | option_1 = Some(5); [INFO] [stdout] | ------------------ `option_1` is overwritten here before the previous value is read [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `option_1` is never read [INFO] [stdout] --> src/options.rs:8:40 [INFO] [stdout] | [INFO] [stdout] 8 | let mut option_1 :Option = None; [INFO] [stdout] | ^^^^ this value is reassigned later and never used [INFO] [stdout] 9 | option_1 = Some("Option Enum with Type String".to_string()); [INFO] [stdout] | -------- `option_1` is overwritten here before the previous value is read [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `option_1` is never read [INFO] [stdout] --> src/options.rs:21:45 [INFO] [stdout] | [INFO] [stdout] 21 | let mut option_1 :CustomCharacterEnum = CustomCharacterEnum::None; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used [INFO] [stdout] 22 | option_1 = CustomCharacterEnum::Archer; [INFO] [stdout] | -------------------------------------- `option_1` is overwritten here before the previous value is read [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/threads.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | handle.join(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 24 | let _ = handle.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/threads.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | handle2.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 25 | let _ = handle2.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Red`, `Blue`, `Green`, `Black`, and `White` are never constructed [INFO] [stdout] --> src/custom_struct.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | enum VehicleColor { [INFO] [stdout] | ------------ variants in this enum [INFO] [stdout] 9 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] 10 | Blue, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 12 | Black, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 13 | White, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `VehicleColor` 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: fields `color`, `model`, and `company` are never read [INFO] [stdout] --> src/custom_struct.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Vehicle { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 18 | color: VehicleColor, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 19 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 20 | company: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Vehicle` 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 `TupleUser` is never constructed [INFO] [stdout] --> src/custom_struct.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | struct TupleUser(String, u8, String); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/threads.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | handle.join(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 24 | let _ = handle.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/threads.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | handle2.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 25 | let _ = handle2.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.22s [INFO] running `Command { std: "docker" "inspect" "3ffdd4a1109821d91e858b7ba0ca43bb121dc60e184c643bc453996d44de54cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ffdd4a1109821d91e858b7ba0ca43bb121dc60e184c643bc453996d44de54cf", kill_on_drop: false }` [INFO] [stdout] 3ffdd4a1109821d91e858b7ba0ca43bb121dc60e184c643bc453996d44de54cf