[INFO] cloning repository https://github.com/maxdotdotg/rust_exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxdotdotg/rust_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxdotdotg%2Frust_exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxdotdotg%2Frust_exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 415483b495fda562ccf51029830316b231861bfb [INFO] testing maxdotdotg/rust_exercises against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxdotdotg%2Frust_exercises" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/maxdotdotg/rust_exercises [INFO] finished tweaking git repo https://github.com/maxdotdotg/rust_exercises [INFO] tweaked toml for git repo https://github.com/maxdotdotg/rust_exercises written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/maxdotdotg/rust_exercises on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/maxdotdotg/rust_exercises 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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 151c7c84dbb6d2a065ebe9846f43bfa71a79d787f13a1c739162818643c525fc [INFO] running `Command { std: "docker" "start" "-a" "151c7c84dbb6d2a065ebe9846f43bfa71a79d787f13a1c739162818643c525fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "151c7c84dbb6d2a065ebe9846f43bfa71a79d787f13a1c739162818643c525fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "151c7c84dbb6d2a065ebe9846f43bfa71a79d787f13a1c739162818643c525fc", kill_on_drop: false }` [INFO] [stdout] 151c7c84dbb6d2a065ebe9846f43bfa71a79d787f13a1c739162818643c525fc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 22f011cc21960a741a959952528954a75e9fd24a259689ba50a777e235d9706e [INFO] running `Command { std: "docker" "start" "-a" "22f011cc21960a741a959952528954a75e9fd24a259689ba50a777e235d9706e", kill_on_drop: false }` [INFO] [stderr] Compiling exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/bin/functions.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let x = 5; [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: unused variable: `six` [INFO] [stdout] --> src/bin/option.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let six = plus_one(five); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `none` [INFO] [stdout] --> src/bin/option.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let none = plus_one(None); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `IpAddrKind_with_types` should have an upper camel case name [INFO] [stdout] --> src/bin/enums.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum IpAddrKind_with_types { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `IpAddrKindWithTypes` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/bin/match.rs:56:13 [INFO] [stdout] | [INFO] [stdout] 56 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/bin/match.rs:60:14 [INFO] [stdout] | [INFO] [stdout] 60 | _ => count += 1, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count_2` is assigned to, but never used [INFO] [stdout] --> src/bin/match.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut count_2 = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count_2` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count_2` is never read [INFO] [stdout] --> src/bin/match.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | count_2 += 1; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Nickel` and `Dime` are never constructed [INFO] [stdout] --> src/bin/match.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 6 | Penny, [INFO] [stdout] 7 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | Dime, [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: `v_four` [INFO] [stdout] --> src/bin/enums.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let v_four = IpAddrKind::V4; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_four` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v_six` [INFO] [stdout] --> src/bin/enums.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let v_six = IpAddrKind::V6; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_six` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/bin/enums.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let home = IpAddr { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/bin/enums.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let loopback = IpAddr { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loop_again` [INFO] [stdout] --> src/bin/enums.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let loop_again = IpAddrKind_with_types::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_again` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_kind` [INFO] [stdout] --> src/bin/enums.rs:42:10 [INFO] [stdout] | [INFO] [stdout] 42 | fn route(ip_kind: IpAddrKind) { } [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_kind` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/enums.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | V4(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `IpAddrKind_with_types` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 - V4(String), [INFO] [stdout] 10 + V4(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/enums.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `IpAddrKind_with_types` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 11 - V6(String), [INFO] [stdout] 11 + V6(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `kind` and `address` are never read [INFO] [stdout] --> src/bin/enums.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | struct IpAddr { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 16 | kind: IpAddrKind, [INFO] [stdout] | ^^^^ [INFO] [stdout] 17 | address: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `route` is never used [INFO] [stdout] --> src/bin/enums.rs:42:4 [INFO] [stdout] | [INFO] [stdout] 42 | fn route(ip_kind: IpAddrKind) { } [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user5` [INFO] [stdout] --> src/bin/struct.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let user5 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user5` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `color_var` [INFO] [stdout] --> src/bin/struct.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let color_var = Color(0, 0, 0); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_var` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/bin/struct.rs:57:18 [INFO] [stdout] | [INFO] [stdout] 57 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/bin/struct.rs:60:18 [INFO] [stdout] | [INFO] [stdout] 60 | struct Point(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s [INFO] running `Command { std: "docker" "inspect" "22f011cc21960a741a959952528954a75e9fd24a259689ba50a777e235d9706e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22f011cc21960a741a959952528954a75e9fd24a259689ba50a777e235d9706e", kill_on_drop: false }` [INFO] [stdout] 22f011cc21960a741a959952528954a75e9fd24a259689ba50a777e235d9706e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4134a5ca9c1b46eec28d76ee263b5e270877ca7ec793f9239523b007588342f7 [INFO] running `Command { std: "docker" "start" "-a" "4134a5ca9c1b46eec28d76ee263b5e270877ca7ec793f9239523b007588342f7", kill_on_drop: false }` [INFO] [stderr] Compiling exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type `IpAddrKind_with_types` should have an upper camel case name [INFO] [stdout] --> src/bin/enums.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum IpAddrKind_with_types { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `IpAddrKindWithTypes` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/bin/functions.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let x = 5; [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: unused variable: `v_four` [INFO] [stdout] --> src/bin/enums.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let v_four = IpAddrKind::V4; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_four` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v_six` [INFO] [stdout] --> src/bin/enums.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let v_six = IpAddrKind::V6; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_six` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/bin/enums.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let home = IpAddr { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/bin/enums.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let loopback = IpAddr { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loop_again` [INFO] [stdout] --> src/bin/enums.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let loop_again = IpAddrKind_with_types::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_again` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_kind` [INFO] [stdout] --> src/bin/enums.rs:42:10 [INFO] [stdout] | [INFO] [stdout] 42 | fn route(ip_kind: IpAddrKind) { } [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_kind` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/enums.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | V4(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `IpAddrKind_with_types` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 - V4(String), [INFO] [stdout] 10 + V4(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/enums.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `IpAddrKind_with_types` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 11 - V6(String), [INFO] [stdout] 11 + V6(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `kind` and `address` are never read [INFO] [stdout] --> src/bin/enums.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | struct IpAddr { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 16 | kind: IpAddrKind, [INFO] [stdout] | ^^^^ [INFO] [stdout] 17 | address: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `route` is never used [INFO] [stdout] --> src/bin/enums.rs:42:4 [INFO] [stdout] | [INFO] [stdout] 42 | fn route(ip_kind: IpAddrKind) { } [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/bin/match.rs:56:13 [INFO] [stdout] | [INFO] [stdout] 56 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/bin/match.rs:60:14 [INFO] [stdout] | [INFO] [stdout] 60 | _ => count += 1, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count_2` is assigned to, but never used [INFO] [stdout] --> src/bin/match.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut count_2 = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count_2` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count_2` is never read [INFO] [stdout] --> src/bin/match.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | count_2 += 1; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Nickel` and `Dime` are never constructed [INFO] [stdout] --> src/bin/match.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 6 | Penny, [INFO] [stdout] 7 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | Dime, [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: `user5` [INFO] [stdout] --> src/bin/struct.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let user5 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user5` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `color_var` [INFO] [stdout] --> src/bin/struct.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let color_var = Color(0, 0, 0); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_var` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six` [INFO] [stdout] --> src/bin/option.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let six = plus_one(five); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `none` [INFO] [stdout] --> src/bin/option.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let none = plus_one(None); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s [INFO] running `Command { std: "docker" "inspect" "4134a5ca9c1b46eec28d76ee263b5e270877ca7ec793f9239523b007588342f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4134a5ca9c1b46eec28d76ee263b5e270877ca7ec793f9239523b007588342f7", kill_on_drop: false }` [INFO] [stdout] 4134a5ca9c1b46eec28d76ee263b5e270877ca7ec793f9239523b007588342f7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 39c742443d9549e9fa7836f74cd91946afc1017b715d7c36c639a94c32039df5 [INFO] running `Command { std: "docker" "start" "-a" "39c742443d9549e9fa7836f74cd91946afc1017b715d7c36c639a94c32039df5", kill_on_drop: false }` [INFO] [stderr] warning: type `IpAddrKind_with_types` should have an upper camel case name [INFO] [stderr] --> src/bin/enums.rs:9:6 [INFO] [stderr] | [INFO] [stderr] 9 | enum IpAddrKind_with_types { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `IpAddrKindWithTypes` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v_four` [INFO] [stderr] --> src/bin/enums.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let v_four = IpAddrKind::V4; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_four` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v_six` [INFO] [stderr] --> src/bin/enums.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let v_six = IpAddrKind::V6; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_six` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/bin/enums.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let home = IpAddr { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `loopback` [INFO] [stderr] --> src/bin/enums.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let loopback = IpAddr { [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `loop_again` [INFO] [stderr] --> src/bin/enums.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let loop_again = IpAddrKind_with_types::V6(String::from("::1")); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_again` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ip_kind` [INFO] [stderr] --> src/bin/enums.rs:42:10 [INFO] [stderr] | [INFO] [stderr] 42 | fn route(ip_kind: IpAddrKind) { } [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_kind` [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/bin/enums.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 10 | V4(String), [INFO] [stderr] | -- ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `IpAddrKind_with_types` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 10 - V4(String), [INFO] [stderr] 10 + V4(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/bin/enums.rs:11:8 [INFO] [stderr] | [INFO] [stderr] 11 | V6(String), [INFO] [stderr] | -- ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `IpAddrKind_with_types` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 11 - V6(String), [INFO] [stderr] 11 + V6(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: fields `kind` and `address` are never read [INFO] [stderr] --> src/bin/enums.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 15 | struct IpAddr { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 16 | kind: IpAddrKind, [INFO] [stderr] | ^^^^ [INFO] [stderr] 17 | address: String, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `route` is never used [INFO] [stderr] --> src/bin/enums.rs:42:4 [INFO] [stderr] | [INFO] [stderr] 42 | fn route(ip_kind: IpAddrKind) { } [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `exercises` (bin "enums" test) generated 11 warnings [INFO] [stderr] warning: unused variable: `user5` [INFO] [stderr] --> src/bin/struct.rs:48:9 [INFO] [stderr] | [INFO] [stderr] 48 | let user5 = User { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user5` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `color_var` [INFO] [stderr] --> src/bin/struct.rs:63:9 [INFO] [stderr] | [INFO] [stderr] 63 | let color_var = Color(0, 0, 0); [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_var` [INFO] [stderr] [INFO] [stderr] warning: variable `count` is assigned to, but never used [INFO] [stderr] --> src/bin/match.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | let mut count = 0; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_count` instead [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `count` is never read [INFO] [stderr] --> src/bin/match.rs:60:14 [INFO] [stderr] | [INFO] [stderr] 60 | _ => count += 1, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable `count_2` is assigned to, but never used [INFO] [stderr] --> src/bin/match.rs:69:13 [INFO] [stderr] | [INFO] [stderr] 69 | let mut count_2 = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_count_2` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `count_2` is never read [INFO] [stderr] --> src/bin/match.rs:73:9 [INFO] [stderr] | [INFO] [stderr] 73 | count_2 += 1; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variants `Nickel` and `Dime` are never constructed [INFO] [stderr] --> src/bin/match.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 5 | enum Coin { [INFO] [stderr] | ---- variants in this enum [INFO] [stderr] 6 | Penny, [INFO] [stderr] 7 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 8 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/functions.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let x = 5; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `six` [INFO] [stderr] --> src/bin/option.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let six = plus_one(five); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `none` [INFO] [stderr] --> src/bin/option.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let none = plus_one(None); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stderr] [INFO] [stderr] warning: `exercises` (bin "struct" test) generated 2 warnings [INFO] [stderr] warning: `exercises` (bin "match" test) generated 5 warnings [INFO] [stderr] warning: `exercises` (bin "functions" test) generated 1 warning [INFO] [stderr] warning: `exercises` (bin "option" test) generated 2 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/bin/control_flow.rs (/opt/rustwide/target/debug/deps/control_flow-9c5c815517c7a2c8) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/enums.rs (/opt/rustwide/target/debug/deps/enums-7cad6c61f6156cb0) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/functions.rs (/opt/rustwide/target/debug/deps/functions-8a7baa1c27cac1be) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/match.rs (/opt/rustwide/target/debug/deps/match-912d3d846c2cc88e) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/option.rs (/opt/rustwide/target/debug/deps/option-99f48ff605d1445f) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/references.rs (/opt/rustwide/target/debug/deps/references-75e1fee231152721) [INFO] [stderr] Running unittests src/bin/slice.rs (/opt/rustwide/target/debug/deps/slice-b4226c3e76472e2e) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/struct.rs (/opt/rustwide/target/debug/deps/struct-b9fb37214491cd92) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/variables.rs (/opt/rustwide/target/debug/deps/variables-471b856955c97c38) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "39c742443d9549e9fa7836f74cd91946afc1017b715d7c36c639a94c32039df5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39c742443d9549e9fa7836f74cd91946afc1017b715d7c36c639a94c32039df5", kill_on_drop: false }` [INFO] [stdout] 39c742443d9549e9fa7836f74cd91946afc1017b715d7c36c639a94c32039df5