[INFO] cloning repository https://github.com/withoutboats/guessing_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/withoutboats/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwithoutboats%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwithoutboats%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba0cad9d5e9e3b2caedfa6ac6d4826c518280862
[INFO] checking withoutboats/guessing_game/ba0cad9d5e9e3b2caedfa6ac6d4826c518280862 against master#ab1d2444533d829e2d5cff6634cd3c70de6d7103 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwithoutboats%2Fguessing_game" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/withoutboats/guessing_game
[INFO] finished tweaking git repo https://github.com/withoutboats/guessing_game
[INFO] tweaked toml for git repo https://github.com/withoutboats/guessing_game written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/withoutboats/guessing_game on toolchain ab1d2444533d829e2d5cff6634cd3c70de6d7103
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/withoutboats/guessing_game 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" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 664d0e44ffce3c89d46c09f954a2623645146d64b364bcf8a9f976175b59e0a8
[INFO] running `Command { std: "docker" "start" "-a" "664d0e44ffce3c89d46c09f954a2623645146d64b364bcf8a9f976175b59e0a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "664d0e44ffce3c89d46c09f954a2623645146d64b364bcf8a9f976175b59e0a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "664d0e44ffce3c89d46c09f954a2623645146d64b364bcf8a9f976175b59e0a8", kill_on_drop: false }`
[INFO] [stdout] 664d0e44ffce3c89d46c09f954a2623645146d64b364bcf8a9f976175b59e0a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efa1d664f611a20e5b9668da0c8825e8a51738f0ef7c199192f8b9883059cb1e
[INFO] running `Command { std: "docker" "start" "-a" "efa1d664f611a20e5b9668da0c8825e8a51738f0ef7c199192f8b9883059cb1e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `secret`
[INFO] [stdout]   --> src/secret_number/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn new(secret: u16) -> Secret {
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `guess`
[INFO] [stdout]   --> src/secret_number/mod.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn guess(&self, guess: &str) -> Result<u32, GuessError> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/secret_number/mod.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Secret` is never constructed
[INFO] [stdout]  --> src/secret_number/mod.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Secret {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `random`, `new`, `guess`, and `secret` are never used
[INFO] [stdout]   --> src/secret_number/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Secret {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn random() -> Secret {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn new(secret: u16) -> Secret {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn guess(&self, guess: &str) -> Result<u32, GuessError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn secret(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GuessError` is never used
[INFO] [stdout]   --> src/secret_number/mod.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub enum GuessError {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/secret_number/tests.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut secret = Secret::new(0);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/secret_number/tests.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut secret = Secret::new(0);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/secret_number/tests.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut secret = Secret::new(1);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/secret_number/tests.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut secret = Secret::new(0);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/secret_number/tests.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut secret = Secret::new(1);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/secret_number/tests.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut secret = Secret::new(0);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/secret_number/tests.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut secret = Secret::new(0);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secret`
[INFO] [stdout]   --> src/secret_number/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn new(secret: u16) -> Secret {
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `guess`
[INFO] [stdout]   --> src/secret_number/mod.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn guess(&self, guess: &str) -> Result<u32, GuessError> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/secret_number/mod.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "efa1d664f611a20e5b9668da0c8825e8a51738f0ef7c199192f8b9883059cb1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa1d664f611a20e5b9668da0c8825e8a51738f0ef7c199192f8b9883059cb1e", kill_on_drop: false }`
[INFO] [stdout] efa1d664f611a20e5b9668da0c8825e8a51738f0ef7c199192f8b9883059cb1e
