[INFO] cloning repository https://github.com/hujinsen/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/hujinsen/rust-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhujinsen%2Frust-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhujinsen%2Frust-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47bb77b73bc96dcd0c104ce527a1c60a2f4de7d2
[INFO] checking hujinsen/rust-demo against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhujinsen%2Frust-demo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hujinsen/rust-demo
[INFO] finished tweaking git repo https://github.com/hujinsen/rust-demo
[INFO] tweaked toml for git repo https://github.com/hujinsen/rust-demo written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hujinsen/rust-demo on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hujinsen/rust-demo 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" "+52995a223f2919dd3e2e427231db90a257350ded" "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-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed
[INFO] running `Command { std: "docker" "start" "b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking rustix v1.1.2
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking rust-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env::consts`
[INFO] [stdout]  --> src/basics/variable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::consts;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/basics/guess_number.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::consts`
[INFO] [stdout]  --> src/basics/variable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::consts;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_number` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn guess_number() -> () {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c_to_f` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn c_to_f(C: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_to_c` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn f_to_c(F: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_temperature` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn convert_temperature() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DemoError` is never used
[INFO] [stdout]  --> src/errors/error_demo.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum DemoError {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_first_number` is never used
[INFO] [stdout]   --> src/errors/error_demo.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn read_first_number(path: &Path) -> Result<i64, DemoError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Fibonacci` is never constructed
[INFO] [stdout]  --> src/iter_collections/fib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Fibonacci {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/iter_collections/fib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Fibonacci {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self { Self { prev: 0, curr: 1 } }
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `slice`, `k`, and `pos` are never read
[INFO] [stdout]   --> src/iter_collections/windows.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Windows<'a, T> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     slice: &'a [T],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     k: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 12 |     pos: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_number` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn guess_number() -> () {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c_to_f` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn c_to_f(C: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_to_c` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn f_to_c(F: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_temperature` is never used
[INFO] [stdout]   --> src/basics/guess_number.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn convert_temperature() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `slice`, `k`, and `pos` are never read
[INFO] [stdout]   --> src/iter_collections/windows.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Windows<'a, T> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     slice: &'a [T],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     k: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 12 |     pos: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `anyhow::Error`
[INFO] [stdout]   --> src/macros/mod.rs:7:32
[INFO] [stdout]    |
[INFO] [stdout]  5 | macro_rules! ensure {
[INFO] [stdout]  6 |     ($cond:expr, $err:expr $(,)?) => {
[INFO] [stdout]  7 |         if !$cond { return Err($err.into()); }
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     ensure!(x > 5, anyhow::anyhow!("x must be > 5"));
[INFO] [stdout]    |     ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: you can instead use the fully-qualified path `<anyhow::Error as Into<anyhow::Error>::into(val) to avoid triggering this lint
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/basics/guess_number.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn c_to_f(C: f32) -> f32 {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `F` should have a snake case name
[INFO] [stdout]   --> src/basics/guess_number.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn f_to_c(F: f32) -> f32 {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case (notice the capitalization): `f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `anyhow::Error`
[INFO] [stdout]   --> src/macros/mod.rs:7:32
[INFO] [stdout]    |
[INFO] [stdout]  5 | macro_rules! ensure {
[INFO] [stdout]  6 |     ($cond:expr, $err:expr $(,)?) => {
[INFO] [stdout]  7 |         if !$cond { return Err($err.into()); }
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     ensure!(x > 5, anyhow::anyhow!("x must be > 5"));
[INFO] [stdout]    |     ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: you can instead use the fully-qualified path `<anyhow::Error as Into<anyhow::Error>::into(val) to avoid triggering this lint
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/basics/guess_number.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn c_to_f(C: f32) -> f32 {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `F` should have a snake case name
[INFO] [stdout]   --> src/basics/guess_number.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn f_to_c(F: f32) -> f32 {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case (notice the capitalization): `f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-demo` (bin "rust-demo") due to 1 previous error; 12 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust-demo` (bin "rust-demo" test) due to 1 previous error; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed", kill_on_drop: false }`
[INFO] [stdout] b0ba97a1e56baa432378b603fcfb6dcd4e57eb609e504997af137cc18ee33aed
