[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 }` [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_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" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f706902d732107c6e3dabe5d1a241387b85af8d931087f50699be42782242287 [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 }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Compiling smallvec v1.13.2 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling bytes v1.7.1 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling pin-project-lite v0.2.14 [INFO] [stderr] Compiling log v0.4.22 [INFO] [stderr] Compiling common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stderr] Compiling siphasher v0.3.11 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling serde v1.0.204 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling regex-syntax v0.8.4 [INFO] [stderr] Compiling bitflags v2.6.0 [INFO] [stderr] Compiling phf_shared v0.10.0 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] 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[INFO] [stderr] Compiling sha1 v0.10.6 [INFO] [stderr] Compiling http-body v0.4.6 [INFO] [stderr] Compiling url v2.5.2 [INFO] [stderr] Compiling headers-core v0.2.0 [INFO] [stderr] Compiling indexmap v2.3.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling crossbeam-channel v0.5.13 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling filetime v0.2.23 [INFO] [stderr] Compiling futures-channel v0.3.30 [INFO] [stderr] Compiling tower-service v0.3.2 [INFO] [stderr] Compiling pulldown-cmark v0.10.3 [INFO] [stderr] Compiling base64 v0.21.7 [INFO] [stderr] Compiling regex-automata v0.4.7 [INFO] [stderr] Compiling crossbeam-deque v0.8.5 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling scoped-tls v1.0.1 [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Compiling headers v0.3.9 [INFO] [stderr] Compiling fastrand v2.1.0 [INFO] [stderr] Compiling pulldown-cmark-escape v0.10.1 [INFO] [stderr] Compiling iana-time-zone v0.1.60 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling humantime v2.1.0 [INFO] [stderr] Compiling topological-sort v0.2.2 [INFO] [stderr] Compiling pathdiff v0.2.1 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling pulldown-cmark v0.11.0 [INFO] [stderr] Compiling unicode-width v0.1.13 [INFO] [stderr] Compiling chrono v0.4.38 [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