[INFO] cloning repository https://github.com/lhohan/rust-100-excercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lhohan/rust-100-excercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flhohan%2Frust-100-excercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flhohan%2Frust-100-excercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 256ca36535f24df70780296765a061d67709a502
[INFO] testing lhohan/rust-100-excercises against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flhohan%2Frust-100-excercises" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lhohan/rust-100-excercises
[INFO] finished tweaking git repo https://github.com/lhohan/rust-100-excercises
[INFO] tweaked toml for git repo https://github.com/lhohan/rust-100-excercises written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lhohan/rust-100-excercises on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lhohan/rust-100-excercises 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "f706902d732107c6e3dabe5d1a241387b85af8d931087f50699be42782242287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f706902d732107c6e3dabe5d1a241387b85af8d931087f50699be42782242287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f706902d732107c6e3dabe5d1a241387b85af8d931087f50699be42782242287", kill_on_drop: false }`
[INFO] [stdout] f706902d732107c6e3dabe5d1a241387b85af8d931087f50699be42782242287
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 909747f45114137db2255be1a0a393a96faca9c479376b7b62b330af32dcd7e9
[INFO] running `Command { std: "docker" "start" "-a" "909747f45114137db2255be1a0a393a96faca9c479376b7b62b330af32dcd7e9", kill_on_drop: false }`
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[INFO] [stderr]    Compiling notify v6.1.1
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[INFO] [stderr]    Compiling topological-sort v0.2.2
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[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling pulldown-cmark v0.11.0
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[INFO] [stderr]    Compiling pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages)
[INFO] [stderr]    Compiling deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies)
[INFO] [stdout] warning: unused import: `anyhow::Error`
[INFO] [stdout]  --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro)
[INFO] [stdout] warning: function `intro` is never used
[INFO] [stdout]  --> exercises/07_threads/00_intro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn intro() -> &'static str {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling destructor v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/11_destructor)
[INFO] [stderr]    Compiling intro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/00_intro)
[INFO] [stdout] warning: function `outro` is never used
[INFO] [stdout]  --> exercises/03_ticket_v1/11_destructor/src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn outro() -> &'static str {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability)
[INFO] [stdout] warning: function `intro` is never used
[INFO] [stdout]  --> exercises/05_ticket_v2/00_intro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn intro() -> &'static str {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling if_let v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/04_if_let)
[INFO] [stdout] error: expected type, found `"not yet implemented"`
[INFO] [stdout]  --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     counter: todo!(),
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              expected type
[INFO] [stdout]   |              in this macro invocation
[INFO] [stdout]   |              this macro call doesn't expand to a type
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"not yet implemented"`
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(value: T, counter: todo!()) -> Self {
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   expected type
[INFO] [stdout]    |                                   in this macro invocation
[INFO] [stdout]    |                                   this macro call doesn't expand to a type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> exercises/07_threads/06_interior_mutability/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cell::RefCell;
[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::rc::Rc`
[INFO] [stdout]  --> exercises/07_threads/06_interior_mutability/src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interior_mutability` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `compute` is never used
[INFO] [stdout]  --> exercises/02_basic_calculator/01_integers/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn compute(a: u32, b: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Shape` is never used
[INFO] [stdout]  --> exercises/05_ticket_v2/04_if_let/src/lib.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Shape {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `radius` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/04_if_let/src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Shape {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn radius(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "909747f45114137db2255be1a0a393a96faca9c479376b7b62b330af32dcd7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909747f45114137db2255be1a0a393a96faca9c479376b7b62b330af32dcd7e9", kill_on_drop: false }`
[INFO] [stdout] 909747f45114137db2255be1a0a393a96faca9c479376b7b62b330af32dcd7e9
