[INFO] cloning repository https://github.com/michaelwaves/rust-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelwaves/rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelwaves%2Frust-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelwaves%2Frust-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 79898c55662422959fea3e33d4f3df649258f14d [INFO] checking michaelwaves/rust-tutorial against master#fce0e74720d199eb7839fdb51af35ac5226da178 for pr-145262 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelwaves%2Frust-tutorial" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/michaelwaves/rust-tutorial [INFO] finished tweaking git repo https://github.com/michaelwaves/rust-tutorial [INFO] tweaked toml for git repo https://github.com/michaelwaves/rust-tutorial written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/michaelwaves/rust-tutorial on toolchain fce0e74720d199eb7839fdb51af35ac5226da178 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/michaelwaves/rust-tutorial 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" "+fce0e74720d199eb7839fdb51af35ac5226da178" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 970d439078cdcb260645bc5ca6d9c78e200db6725d0d9e7054352955fef353e9 [INFO] running `Command { std: "docker" "start" "-a" "970d439078cdcb260645bc5ca6d9c78e200db6725d0d9e7054352955fef353e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "970d439078cdcb260645bc5ca6d9c78e200db6725d0d9e7054352955fef353e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "970d439078cdcb260645bc5ca6d9c78e200db6725d0d9e7054352955fef353e9", kill_on_drop: false }` [INFO] [stdout] 970d439078cdcb260645bc5ca6d9c78e200db6725d0d9e7054352955fef353e9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3abb21c8f1ea7305472c9d709e1f2adba1e45ad960f84f3641c822188de88ab4 [INFO] running `Command { std: "docker" "start" "-a" "3abb21c8f1ea7305472c9d709e1f2adba1e45ad960f84f3641c822188de88ab4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.172 [INFO] [stderr] Compiling zerocopy v0.8.24 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking ppv-lite86 v0.2.21 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `four` [INFO] [stdout] --> src/enums.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let four = IPAddress::V4; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_four` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six` [INFO] [stdout] --> src/enums.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let six = IPAddress::V6; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `localhost` [INFO] [stdout] --> src/enums.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let localhost = IPAddress::V4(String::from("127.0.0.1")); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_localhost` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/enums.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let loopback = IPAddress::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_char` [INFO] [stdout] --> src/enums.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let some_char = Some('e'); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | V4(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] 3 - V4(String), [INFO] [stdout] 3 + V4(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 4 - V6(String), [INFO] [stdout] 4 + V6(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:17:15 [INFO] [stdout] | [INFO] [stdout] 17 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [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] 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] 17 - Write(String), [INFO] [stdout] 17 + Write(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed [INFO] [stdout] --> src/enums.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 14 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 15 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 17 | Write(String), [INFO] [stdout] 18 | ChangeColor(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] [INFO] [stdout] [INFO] [stdout] warning: variants `Small`, `Medium`, and `XL` are never constructed [INFO] [stdout] --> src/enums.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 35 | enum EggSize { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 36 | Small, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 37 | Medium, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 38 | Large, [INFO] [stdout] 39 | XL, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `EggSize` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active` and `sign_in_count` are never read [INFO] [stdout] --> src/structs.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 3 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 6 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `width` is never used [INFO] [stdout] --> src/structs.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 52 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 53 | fn width(&self) -> bool { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `four` [INFO] [stdout] --> src/enums.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let four = IPAddress::V4; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_four` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six` [INFO] [stdout] --> src/enums.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let six = IPAddress::V6; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `localhost` [INFO] [stdout] --> src/enums.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let localhost = IPAddress::V4(String::from("127.0.0.1")); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_localhost` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/enums.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let loopback = IPAddress::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_char` [INFO] [stdout] --> src/enums.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let some_char = Some('e'); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | V4(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] 3 - V4(String), [INFO] [stdout] 3 + V4(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 4 - V6(String), [INFO] [stdout] 4 + V6(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:17:15 [INFO] [stdout] | [INFO] [stdout] 17 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [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] 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] 17 - Write(String), [INFO] [stdout] 17 + Write(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed [INFO] [stdout] --> src/enums.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 14 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 15 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 17 | Write(String), [INFO] [stdout] 18 | ChangeColor(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] [INFO] [stdout] [INFO] [stdout] warning: variants `Small`, `Medium`, and `XL` are never constructed [INFO] [stdout] --> src/enums.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 35 | enum EggSize { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 36 | Small, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 37 | Medium, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 38 | Large, [INFO] [stdout] 39 | XL, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `EggSize` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active` and `sign_in_count` are never read [INFO] [stdout] --> src/structs.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 3 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 6 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `width` is never used [INFO] [stdout] --> src/structs.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 52 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 53 | fn width(&self) -> bool { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.81s [INFO] running `Command { std: "docker" "inspect" "3abb21c8f1ea7305472c9d709e1f2adba1e45ad960f84f3641c822188de88ab4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3abb21c8f1ea7305472c9d709e1f2adba1e45ad960f84f3641c822188de88ab4", kill_on_drop: false }` [INFO] [stdout] 3abb21c8f1ea7305472c9d709e1f2adba1e45ad960f84f3641c822188de88ab4