[INFO] cloning repository https://github.com/niyiwei/rust-demo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niyiwei/rust-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniyiwei%2Frust-demo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniyiwei%2Frust-demo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e91ccfb8f78e6609f3423d9c0a10d18648bfe8d9 [INFO] testing niyiwei/rust-demo against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniyiwei%2Frust-demo" "/workspace/builds/worker-18/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/niyiwei/rust-demo on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/niyiwei/rust-demo [INFO] finished tweaking git repo https://github.com/niyiwei/rust-demo [INFO] tweaked toml for git repo https://github.com/niyiwei/rust-demo written to /workspace/builds/worker-18/source/Cargo.toml [INFO] crate git repo https://github.com/niyiwei/rust-demo already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ae83c159c4678d5899a48edd59f4320bcf6e858c1cc09f693f4506730bef074f [INFO] running `Command { std: "docker" "start" "-a" "ae83c159c4678d5899a48edd59f4320bcf6e858c1cc09f693f4506730bef074f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ae83c159c4678d5899a48edd59f4320bcf6e858c1cc09f693f4506730bef074f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae83c159c4678d5899a48edd59f4320bcf6e858c1cc09f693f4506730bef074f", kill_on_drop: false }` [INFO] [stdout] ae83c159c4678d5899a48edd59f4320bcf6e858c1cc09f693f4506730bef074f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7e775defcf465fa857430a0e9e8b753754be20b2fef1e34c0b77f79cb873ac95 [INFO] running `Command { std: "docker" "start" "-a" "7e775defcf465fa857430a0e9e8b753754be20b2fef1e34c0b77f79cb873ac95", kill_on_drop: false }` [INFO] [stderr] Compiling chapter16 v0.1.0 (/opt/rustwide/workdir/chapter16) [INFO] [stderr] Compiling hello-demo v0.1.0 (/opt/rustwide/workdir/chapter10) [INFO] [stderr] Compiling addr v0.1.0 (/opt/rustwide/workdir/addr) [INFO] [stderr] Compiling chapter20 v0.1.0 (/opt/rustwide/workdir/chapter20) [INFO] [stderr] Compiling chapter17 v0.1.0 (/opt/rustwide/workdir/chapter17) [INFO] [stderr] Compiling chapter18 v0.1.0 (/opt/rustwide/workdir/chapter18) [INFO] [stderr] Compiling chapter-1 v0.1.0 (/opt/rustwide/workdir/chapter-1) [INFO] [stderr] Compiling chapter15 v0.1.0 (/opt/rustwide/workdir/chapter15) [INFO] [stdout] warning: unused import: `std::collections::hash_map::Entry::Vacant` [INFO] [stdout] --> chapter10/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::hash_map::Entry::Vacant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> chapter10/src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | _ => Some(-1), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> chapter-1/src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | name: &'a str, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter-1/src/main.rs:25:14 [INFO] [stdout] | [INFO] [stdout] 25 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `age` [INFO] [stdout] --> chapter-1/src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | age: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter-1/src/main.rs:25:14 [INFO] [stdout] | [INFO] [stdout] 25 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_number` [INFO] [stdout] --> chapter10/src/main.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | let some_number = Some(5); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_string` [INFO] [stdout] --> chapter10/src/main.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 87 | let some_string = Some("a string"); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `none_value` [INFO] [stdout] --> chapter10/src/main.rs:89:9 [INFO] [stdout] | [INFO] [stdout] 89 | let none_value: Option = None; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_none_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_coordinates` [INFO] [stdout] --> chapter18/src/main.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | fn print_coordinates(&(x, y): &(i32, i32)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Penny` [INFO] [stdout] --> chapter10/src/main.rs:78:5 [INFO] [stdout] | [INFO] [stdout] 78 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Dine` [INFO] [stdout] --> chapter10/src/main.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 80 | Dine, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Quarter` [INFO] [stdout] --> chapter10/src/main.rs:81:5 [INFO] [stdout] | [INFO] [stdout] 81 | Quarter, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_4` [INFO] [stdout] --> chapter10/src/main.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn chapter6_1_4() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Quit` [INFO] [stdout] --> chapter10/src/main.rs:101:5 [INFO] [stdout] | [INFO] [stdout] 101 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:99:10 [INFO] [stdout] | [INFO] [stdout] 99 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Write` [INFO] [stdout] --> chapter10/src/main.rs:102:5 [INFO] [stdout] | [INFO] [stdout] 102 | Write(String), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:99:10 [INFO] [stdout] | [INFO] [stdout] 99 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ChangeColor` [INFO] [stdout] --> chapter10/src/main.rs:103:5 [INFO] [stdout] | [INFO] [stdout] 103 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:99:10 [INFO] [stdout] | [INFO] [stdout] 99 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `call` [INFO] [stdout] --> chapter10/src/main.rs:108:8 [INFO] [stdout] | [INFO] [stdout] 108 | fn call(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_3` [INFO] [stdout] --> chapter10/src/main.rs:113:4 [INFO] [stdout] | [INFO] [stdout] 113 | fn chapter6_1_3() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_2` [INFO] [stdout] --> chapter10/src/main.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn chapter6_1_2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_1` [INFO] [stdout] --> chapter10/src/main.rs:125:4 [INFO] [stdout] | [INFO] [stdout] 125 | fn chapter6_1_1() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V4` [INFO] [stdout] --> chapter10/src/main.rs:142:5 [INFO] [stdout] | [INFO] [stdout] 142 | V4(u8, u8, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind3` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:140:10 [INFO] [stdout] | [INFO] [stdout] 140 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> chapter10/src/main.rs:143:5 [INFO] [stdout] | [INFO] [stdout] 143 | V6(String), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind3` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:140:10 [INFO] [stdout] | [INFO] [stdout] 140 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V4` [INFO] [stdout] --> chapter10/src/main.rs:148:5 [INFO] [stdout] | [INFO] [stdout] 148 | V4(String), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:146:10 [INFO] [stdout] | [INFO] [stdout] 146 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> chapter10/src/main.rs:149:5 [INFO] [stdout] | [INFO] [stdout] 149 | V6(String), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:146:10 [INFO] [stdout] | [INFO] [stdout] 146 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V4` [INFO] [stdout] --> chapter10/src/main.rs:154:5 [INFO] [stdout] | [INFO] [stdout] 154 | V4, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:152:10 [INFO] [stdout] | [INFO] [stdout] 152 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> chapter10/src/main.rs:155:5 [INFO] [stdout] | [INFO] [stdout] 155 | V6, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:152:10 [INFO] [stdout] | [INFO] [stdout] 152 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `kind` [INFO] [stdout] --> chapter10/src/main.rs:160:5 [INFO] [stdout] | [INFO] [stdout] 160 | kind: IpAddrKind1, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:158:10 [INFO] [stdout] | [INFO] [stdout] 158 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `address` [INFO] [stdout] --> chapter10/src/main.rs:161:5 [INFO] [stdout] | [INFO] [stdout] 161 | address: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:158:10 [INFO] [stdout] | [INFO] [stdout] 158 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_2_2` [INFO] [stdout] --> chapter10/src/main.rs:164:4 [INFO] [stdout] | [INFO] [stdout] 164 | fn chapter5_2_2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_2_3` [INFO] [stdout] --> chapter10/src/main.rs:179:4 [INFO] [stdout] | [INFO] [stdout] 179 | fn chapter5_2_3() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `width` [INFO] [stdout] --> chapter10/src/main.rs:190:5 [INFO] [stdout] | [INFO] [stdout] 190 | width: i32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:188:10 [INFO] [stdout] | [INFO] [stdout] 188 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `height` [INFO] [stdout] --> chapter10/src/main.rs:191:5 [INFO] [stdout] | [INFO] [stdout] 191 | height: i32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:188:10 [INFO] [stdout] | [INFO] [stdout] 188 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `area` [INFO] [stdout] --> chapter10/src/main.rs:196:8 [INFO] [stdout] | [INFO] [stdout] 196 | fn area(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `can_hold` [INFO] [stdout] --> chapter10/src/main.rs:200:8 [INFO] [stdout] | [INFO] [stdout] 200 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> chapter10/src/main.rs:205:8 [INFO] [stdout] | [INFO] [stdout] 205 | fn new(width: i32, height: i32) -> Rectangle { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_2_1` [INFO] [stdout] --> chapter10/src/main.rs:214:4 [INFO] [stdout] | [INFO] [stdout] 214 | fn chapter5_2_1() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_1_2` [INFO] [stdout] --> chapter10/src/main.rs:224:4 [INFO] [stdout] | [INFO] [stdout] 224 | fn chapter5_1_2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_1_1` [INFO] [stdout] --> chapter10/src/main.rs:233:4 [INFO] [stdout] | [INFO] [stdout] 233 | fn chapter5_1_1() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `area` [INFO] [stdout] --> chapter10/src/main.rs:242:4 [INFO] [stdout] | [INFO] [stdout] 242 | fn area(rectangle: &Rectangle) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 35 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.45s [INFO] running `Command { std: "docker" "inspect" "7e775defcf465fa857430a0e9e8b753754be20b2fef1e34c0b77f79cb873ac95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e775defcf465fa857430a0e9e8b753754be20b2fef1e34c0b77f79cb873ac95", kill_on_drop: false }` [INFO] [stdout] 7e775defcf465fa857430a0e9e8b753754be20b2fef1e34c0b77f79cb873ac95 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bf889ec1d07fe97cd418896abcae928c4372276f7eb7071df722f268ad0ee8b5 [INFO] running `Command { std: "docker" "start" "-a" "bf889ec1d07fe97cd418896abcae928c4372276f7eb7071df722f268ad0ee8b5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling addr v0.1.0 (/opt/rustwide/workdir/addr) [INFO] [stderr] Compiling chapter15 v0.1.0 (/opt/rustwide/workdir/chapter15) [INFO] [stderr] Compiling chapter18 v0.1.0 (/opt/rustwide/workdir/chapter18) [INFO] [stderr] Compiling chapter-1 v0.1.0 (/opt/rustwide/workdir/chapter-1) [INFO] [stderr] Compiling chapter20 v0.1.0 (/opt/rustwide/workdir/chapter20) [INFO] [stderr] Compiling hello-demo v0.1.0 (/opt/rustwide/workdir/chapter10) [INFO] [stderr] Compiling chapter16 v0.1.0 (/opt/rustwide/workdir/chapter16) [INFO] [stderr] Compiling chapter17 v0.1.0 (/opt/rustwide/workdir/chapter17) [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> chapter16/src/lib.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> chapter16/src/lib.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | mod channel_test { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::hash_map::Entry::Vacant` [INFO] [stdout] --> chapter10/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::hash_map::Entry::Vacant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> chapter10/src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | _ => Some(-1), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_number` [INFO] [stdout] --> chapter10/src/main.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | let some_number = Some(5); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_string` [INFO] [stdout] --> chapter10/src/main.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 87 | let some_string = Some("a string"); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `none_value` [INFO] [stdout] --> chapter10/src/main.rs:89:9 [INFO] [stdout] | [INFO] [stdout] 89 | let none_value: Option = None; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_none_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Penny` [INFO] [stdout] --> chapter10/src/main.rs:78:5 [INFO] [stdout] | [INFO] [stdout] 78 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Dine` [INFO] [stdout] --> chapter10/src/main.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 80 | Dine, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Quarter` [INFO] [stdout] --> chapter10/src/main.rs:81:5 [INFO] [stdout] | [INFO] [stdout] 81 | Quarter, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_4` [INFO] [stdout] --> chapter10/src/main.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn chapter6_1_4() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Quit` [INFO] [stdout] --> chapter10/src/main.rs:101:5 [INFO] [stdout] | [INFO] [stdout] 101 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:99:10 [INFO] [stdout] | [INFO] [stdout] 99 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Write` [INFO] [stdout] --> chapter10/src/main.rs:102:5 [INFO] [stdout] | [INFO] [stdout] 102 | Write(String), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:99:10 [INFO] [stdout] | [INFO] [stdout] 99 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ChangeColor` [INFO] [stdout] --> chapter10/src/main.rs:103:5 [INFO] [stdout] | [INFO] [stdout] 103 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:99:10 [INFO] [stdout] | [INFO] [stdout] 99 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `call` [INFO] [stdout] --> chapter10/src/main.rs:108:8 [INFO] [stdout] | [INFO] [stdout] 108 | fn call(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_3` [INFO] [stdout] --> chapter10/src/main.rs:113:4 [INFO] [stdout] | [INFO] [stdout] 113 | fn chapter6_1_3() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_2` [INFO] [stdout] --> chapter10/src/main.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn chapter6_1_2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter6_1_1` [INFO] [stdout] --> chapter10/src/main.rs:125:4 [INFO] [stdout] | [INFO] [stdout] 125 | fn chapter6_1_1() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V4` [INFO] [stdout] --> chapter10/src/main.rs:142:5 [INFO] [stdout] | [INFO] [stdout] 142 | V4(u8, u8, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind3` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:140:10 [INFO] [stdout] | [INFO] [stdout] 140 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> chapter10/src/main.rs:143:5 [INFO] [stdout] | [INFO] [stdout] 143 | V6(String), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind3` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:140:10 [INFO] [stdout] | [INFO] [stdout] 140 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V4` [INFO] [stdout] --> chapter10/src/main.rs:148:5 [INFO] [stdout] | [INFO] [stdout] 148 | V4(String), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:146:10 [INFO] [stdout] | [INFO] [stdout] 146 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> chapter10/src/main.rs:149:5 [INFO] [stdout] | [INFO] [stdout] 149 | V6(String), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:146:10 [INFO] [stdout] | [INFO] [stdout] 146 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V4` [INFO] [stdout] --> chapter10/src/main.rs:154:5 [INFO] [stdout] | [INFO] [stdout] 154 | V4, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:152:10 [INFO] [stdout] | [INFO] [stdout] 152 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> chapter10/src/main.rs:155:5 [INFO] [stdout] | [INFO] [stdout] 155 | V6, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddrKind1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:152:10 [INFO] [stdout] | [INFO] [stdout] 152 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `kind` [INFO] [stdout] --> chapter10/src/main.rs:160:5 [INFO] [stdout] | [INFO] [stdout] 160 | kind: IpAddrKind1, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:158:10 [INFO] [stdout] | [INFO] [stdout] 158 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `address` [INFO] [stdout] --> chapter10/src/main.rs:161:5 [INFO] [stdout] | [INFO] [stdout] 161 | address: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:158:10 [INFO] [stdout] | [INFO] [stdout] 158 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_2_2` [INFO] [stdout] --> chapter10/src/main.rs:164:4 [INFO] [stdout] | [INFO] [stdout] 164 | fn chapter5_2_2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_2_3` [INFO] [stdout] --> chapter10/src/main.rs:179:4 [INFO] [stdout] | [INFO] [stdout] 179 | fn chapter5_2_3() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `width` [INFO] [stdout] --> chapter10/src/main.rs:190:5 [INFO] [stdout] | [INFO] [stdout] 190 | width: i32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:188:10 [INFO] [stdout] | [INFO] [stdout] 188 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `height` [INFO] [stdout] --> chapter10/src/main.rs:191:5 [INFO] [stdout] | [INFO] [stdout] 191 | height: i32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> chapter10/src/main.rs:188:10 [INFO] [stdout] | [INFO] [stdout] 188 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `area` [INFO] [stdout] --> chapter10/src/main.rs:196:8 [INFO] [stdout] | [INFO] [stdout] 196 | fn area(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `can_hold` [INFO] [stdout] --> chapter10/src/main.rs:200:8 [INFO] [stdout] | [INFO] [stdout] 200 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> chapter10/src/main.rs:205:8 [INFO] [stdout] | [INFO] [stdout] 205 | fn new(width: i32, height: i32) -> Rectangle { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_2_1` [INFO] [stdout] --> chapter10/src/main.rs:214:4 [INFO] [stdout] | [INFO] [stdout] 214 | fn chapter5_2_1() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_1_2` [INFO] [stdout] --> chapter10/src/main.rs:224:4 [INFO] [stdout] | [INFO] [stdout] 224 | fn chapter5_1_2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chapter5_1_1` [INFO] [stdout] --> chapter10/src/main.rs:233:4 [INFO] [stdout] | [INFO] [stdout] 233 | fn chapter5_1_1() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `area` [INFO] [stdout] --> chapter10/src/main.rs:242:4 [INFO] [stdout] | [INFO] [stdout] 242 | fn area(rectangle: &Rectangle) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Quit` [INFO] [stdout] --> chapter18/src/main.rs:149:17 [INFO] [stdout] | [INFO] [stdout] 149 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Move` [INFO] [stdout] --> chapter18/src/main.rs:150:17 [INFO] [stdout] | [INFO] [stdout] 150 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Write` [INFO] [stdout] --> chapter18/src/main.rs:151:17 [INFO] [stdout] | [INFO] [stdout] 151 | Write(String), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 35 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `Command { std: "docker" "inspect" "bf889ec1d07fe97cd418896abcae928c4372276f7eb7071df722f268ad0ee8b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf889ec1d07fe97cd418896abcae928c4372276f7eb7071df722f268ad0ee8b5", kill_on_drop: false }` [INFO] [stdout] bf889ec1d07fe97cd418896abcae928c4372276f7eb7071df722f268ad0ee8b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 310f30e4ef00e86b01eeffde4b657304490a97ceb927da6cff9e358576015be9 [INFO] running `Command { std: "docker" "start" "-a" "310f30e4ef00e86b01eeffde4b657304490a97ceb927da6cff9e358576015be9", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry::Vacant` [INFO] [stderr] --> chapter10/src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::hash_map::Entry::Vacant; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> chapter10/src/main.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | _ => Some(-1), [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_number` [INFO] [stderr] --> chapter10/src/main.rs:86:9 [INFO] [stderr] | [INFO] [stderr] 86 | let some_number = Some(5); [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_string` [INFO] [stderr] --> chapter10/src/main.rs:87:9 [INFO] [stderr] | [INFO] [stderr] 87 | let some_string = Some("a string"); [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_string` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `none_value` [INFO] [stderr] --> chapter10/src/main.rs:89:9 [INFO] [stderr] | [INFO] [stderr] 89 | let none_value: Option = None; [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_none_value` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> chapter10/src/main.rs:78:5 [INFO] [stderr] | [INFO] [stderr] 78 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dine` [INFO] [stderr] --> chapter10/src/main.rs:80:5 [INFO] [stderr] | [INFO] [stderr] 80 | Dine, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Quarter` [INFO] [stderr] --> chapter10/src/main.rs:81:5 [INFO] [stderr] | [INFO] [stderr] 81 | Quarter, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter6_1_4` [INFO] [stderr] --> chapter10/src/main.rs:94:4 [INFO] [stderr] | [INFO] [stderr] 94 | fn chapter6_1_4() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Quit` [INFO] [stderr] --> chapter10/src/main.rs:101:5 [INFO] [stderr] | [INFO] [stderr] 101 | Quit, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:99:10 [INFO] [stderr] | [INFO] [stderr] 99 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Write` [INFO] [stderr] --> chapter10/src/main.rs:102:5 [INFO] [stderr] | [INFO] [stderr] 102 | Write(String), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:99:10 [INFO] [stderr] | [INFO] [stderr] 99 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ChangeColor` [INFO] [stderr] --> chapter10/src/main.rs:103:5 [INFO] [stderr] | [INFO] [stderr] 103 | ChangeColor(i32, i32, i32), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:99:10 [INFO] [stderr] | [INFO] [stderr] 99 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `call` [INFO] [stderr] --> chapter10/src/main.rs:108:8 [INFO] [stderr] | [INFO] [stderr] 108 | fn call(&self) { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter6_1_3` [INFO] [stderr] --> chapter10/src/main.rs:113:4 [INFO] [stderr] | [INFO] [stderr] 113 | fn chapter6_1_3() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter6_1_2` [INFO] [stderr] --> chapter10/src/main.rs:119:4 [INFO] [stderr] | [INFO] [stderr] 119 | fn chapter6_1_2() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter6_1_1` [INFO] [stderr] --> chapter10/src/main.rs:125:4 [INFO] [stderr] | [INFO] [stderr] 125 | fn chapter6_1_1() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `V4` [INFO] [stderr] --> chapter10/src/main.rs:142:5 [INFO] [stderr] | [INFO] [stderr] 142 | V4(u8, u8, u8, u8), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddrKind3` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:140:10 [INFO] [stderr] | [INFO] [stderr] 140 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `V6` [INFO] [stderr] --> chapter10/src/main.rs:143:5 [INFO] [stderr] | [INFO] [stderr] 143 | V6(String), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddrKind3` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:140:10 [INFO] [stderr] | [INFO] [stderr] 140 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `V4` [INFO] [stderr] --> chapter10/src/main.rs:148:5 [INFO] [stderr] | [INFO] [stderr] 148 | V4(String), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddrKind2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:146:10 [INFO] [stderr] | [INFO] [stderr] 146 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `V6` [INFO] [stderr] --> chapter10/src/main.rs:149:5 [INFO] [stderr] | [INFO] [stderr] 149 | V6(String), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddrKind2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:146:10 [INFO] [stderr] | [INFO] [stderr] 146 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `V4` [INFO] [stderr] --> chapter10/src/main.rs:154:5 [INFO] [stderr] | [INFO] [stderr] 154 | V4, [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddrKind1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:152:10 [INFO] [stderr] | [INFO] [stderr] 152 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `V6` [INFO] [stderr] --> chapter10/src/main.rs:155:5 [INFO] [stderr] | [INFO] [stderr] 155 | V6, [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddrKind1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:152:10 [INFO] [stderr] | [INFO] [stderr] 152 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `kind` [INFO] [stderr] --> chapter10/src/main.rs:160:5 [INFO] [stderr] | [INFO] [stderr] 160 | kind: IpAddrKind1, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:158:10 [INFO] [stderr] | [INFO] [stderr] 158 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `address` [INFO] [stderr] --> chapter10/src/main.rs:161:5 [INFO] [stderr] | [INFO] [stderr] 161 | address: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:158:10 [INFO] [stderr] | [INFO] [stderr] 158 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter5_2_2` [INFO] [stderr] --> chapter10/src/main.rs:164:4 [INFO] [stderr] | [INFO] [stderr] 164 | fn chapter5_2_2() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter5_2_3` [INFO] [stderr] --> chapter10/src/main.rs:179:4 [INFO] [stderr] | [INFO] [stderr] 179 | fn chapter5_2_3() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `width` [INFO] [stderr] --> chapter10/src/main.rs:190:5 [INFO] [stderr] | [INFO] [stderr] 190 | width: i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:188:10 [INFO] [stderr] | [INFO] [stderr] 188 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `height` [INFO] [stderr] --> chapter10/src/main.rs:191:5 [INFO] [stderr] | [INFO] [stderr] 191 | height: i32, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> chapter10/src/main.rs:188:10 [INFO] [stderr] | [INFO] [stderr] 188 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `area` [INFO] [stderr] --> chapter10/src/main.rs:196:8 [INFO] [stderr] | [INFO] [stderr] 196 | fn area(&self) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `can_hold` [INFO] [stderr] --> chapter10/src/main.rs:200:8 [INFO] [stderr] | [INFO] [stderr] 200 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> chapter10/src/main.rs:205:8 [INFO] [stderr] | [INFO] [stderr] 205 | fn new(width: i32, height: i32) -> Rectangle { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter5_2_1` [INFO] [stderr] --> chapter10/src/main.rs:214:4 [INFO] [stderr] | [INFO] [stderr] 214 | fn chapter5_2_1() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter5_1_2` [INFO] [stderr] --> chapter10/src/main.rs:224:4 [INFO] [stderr] | [INFO] [stderr] 224 | fn chapter5_1_2() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chapter5_1_1` [INFO] [stderr] --> chapter10/src/main.rs:233:4 [INFO] [stderr] | [INFO] [stderr] 233 | fn chapter5_1_1() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `area` [INFO] [stderr] --> chapter10/src/main.rs:242:4 [INFO] [stderr] | [INFO] [stderr] 242 | fn area(rectangle: &Rectangle) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Quit` [INFO] [stderr] --> chapter18/src/main.rs:149:17 [INFO] [stderr] | [INFO] [stderr] 149 | Quit, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Move` [INFO] [stderr] --> chapter18/src/main.rs:150:17 [INFO] [stderr] | [INFO] [stderr] 150 | Move { x: i32, y: i32 }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Write` [INFO] [stderr] --> chapter18/src/main.rs:151:17 [INFO] [stderr] | [INFO] [stderr] 151 | Write(String), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> chapter16/src/lib.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module [INFO] [stderr] --> chapter16/src/lib.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | mod channel_test { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `hello-demo` (bin "hello-demo" test) generated 35 warnings [INFO] [stderr] warning: `chapter18` (bin "chapter18" test) generated 3 warnings [INFO] [stderr] warning: `chapter16` (lib test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/addr-07a5f22c58eb2525) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::exploration ... ok [INFO] [stdout] test tests::it_works ... ok [INFO] [stdout] test tests::it_works_result ... ok [INFO] [stdout] test tests::greater_than_100 - should panic ... FAILED [INFO] [stdout] test tests::larger_can_hold_smaller ... ok [INFO] [stdout] test tests::smaller_cannot_hold_larger ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::greater_than_100 stdout ---- [INFO] [stdout] note: test did not panic as expected [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::greater_than_100 [INFO] [stdout] [INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '-p addr --lib' [INFO] running `Command { std: "docker" "inspect" "310f30e4ef00e86b01eeffde4b657304490a97ceb927da6cff9e358576015be9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "310f30e4ef00e86b01eeffde4b657304490a97ceb927da6cff9e358576015be9", kill_on_drop: false }` [INFO] [stdout] 310f30e4ef00e86b01eeffde4b657304490a97ceb927da6cff9e358576015be9