[INFO] cloning repository https://github.com/clvx/ultimate-rust-foundations [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clvx/ultimate-rust-foundations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f5bad8e96126feab0785b7d4bc7f8926be91c823 [INFO] building clvx/ultimate-rust-foundations against try#58b1b3c5342a414c161338871f8004258ccef2a7 for pr-149937 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/clvx/ultimate-rust-foundations [INFO] finished tweaking git repo https://github.com/clvx/ultimate-rust-foundations [INFO] tweaked toml for git repo https://github.com/clvx/ultimate-rust-foundations written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/clvx/ultimate-rust-foundations on toolchain 58b1b3c5342a414c161338871f8004258ccef2a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/clvx/ultimate-rust-foundations 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" "+58b1b3c5342a414c161338871f8004258ccef2a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 553fc08a4b38a042566aef3490d1420904d2d3a9ebcff1a2edc87933febbcdd4 [INFO] running `Command { std: "docker" "start" "-a" "553fc08a4b38a042566aef3490d1420904d2d3a9ebcff1a2edc87933febbcdd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "553fc08a4b38a042566aef3490d1420904d2d3a9ebcff1a2edc87933febbcdd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "553fc08a4b38a042566aef3490d1420904d2d3a9ebcff1a2edc87933febbcdd4", kill_on_drop: false }` [INFO] [stdout] 553fc08a4b38a042566aef3490d1420904d2d3a9ebcff1a2edc87933febbcdd4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 01233f0807d8599968372d3db79ab5e53460bc8bccaf8eb60d99faaefe198d55 [INFO] running `Command { std: "docker" "start" "-a" "01233f0807d8599968372d3db79ab5e53460bc8bccaf8eb60d99faaefe198d55", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] 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futures-executor v0.3.31 [INFO] [stderr] Compiling time v0.3.41 [INFO] [stderr] Compiling clap_builder v4.5.27 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling crossbeam-channel v0.5.15 [INFO] [stderr] Compiling http-range-header v0.4.2 [INFO] [stderr] Compiling dotenv v0.15.0 [INFO] [stderr] Compiling hashbrown v0.14.5 [INFO] [stderr] Compiling matchit v0.8.4 [INFO] [stderr] Compiling tempfile v3.15.0 [INFO] [stderr] Compiling core_affinity v0.8.1 [INFO] [stderr] Compiling dashmap v6.1.0 [INFO] [stderr] Compiling thread-priority v1.2.0 [INFO] [stderr] Compiling rwlocks v0.1.0 (/opt/rustwide/workdir/foundations/session2/rwlocks) [INFO] [stderr] Compiling affinity v0.1.0 (/opt/rustwide/workdir/foundations/session2/affinity) [INFO] [stderr] Compiling threadpool v0.1.0 (/opt/rustwide/workdir/foundations/session2/threadpool) [INFO] [stderr] Compiling deadlocks v0.1.0 (/opt/rustwide/workdir/foundations/session2/deadlocks) [INFO] [stderr] Compiling divide_work v0.1.0 (/opt/rustwide/workdir/foundations/session2/divide_work) [INFO] [stderr] Compiling external_arc_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session4/external_arc_mutex) [INFO] [stderr] Compiling mutexes v0.1.0 (/opt/rustwide/workdir/foundations/session2/mutexes) [INFO] [stderr] Compiling channels v0.1.0 (/opt/rustwide/workdir/foundations/session2/channels) [INFO] [stderr] Compiling dropping v0.1.0 (/opt/rustwide/workdir/foundations/session4/dropping) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> foundations/session2/mutexes/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | for i in 0..10 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling dashing v0.1.0 (/opt/rustwide/workdir/foundations/session2/dashing) [INFO] [stderr] Compiling tprio v0.1.0 (/opt/rustwide/workdir/foundations/session2/tprio) [INFO] [stdout] warning: static `HIGH_COUNT` is never used [INFO] [stdout] --> foundations/session2/tprio/src/main.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | static HIGH_COUNT: AtomicI32 = AtomicI32::new(0); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling thread_builder v0.1.0 (/opt/rustwide/workdir/foundations/session2/thread_builder) [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/foundations/session1/variables) [INFO] [stderr] Compiling generics v0.1.0 (/opt/rustwide/workdir/foundations/session4/generics_and_iterators) [INFO] [stderr] Compiling refcount v0.1.0 (/opt/rustwide/workdir/foundations/session4/refcount) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> foundations/session4/generics_and_iterators/src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | fn iter(&self) -> HashMapBucketIter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 32 | fn iter(&self) -> HashMapBucketIter<'_, K, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling internal_arc_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session4/internal_arc_mutex) [INFO] [stderr] Compiling operator_overloading v0.1.0 (/opt/rustwide/workdir/foundations/session4/operator_overloading) [INFO] [stderr] Compiling smart_pointer v0.1.0 (/opt/rustwide/workdir/foundations/session4/smart_pointer) [INFO] [stderr] Compiling traits v0.1.0 (/opt/rustwide/workdir/foundations/session4/traits) [INFO] [stderr] Compiling atomicrefcount v0.1.0 (/opt/rustwide/workdir/foundations/session4/atomicrefcount) [INFO] [stderr] Compiling linked_list v0.1.0 (/opt/rustwide/workdir/foundations/session4/linked_list) [INFO] [stderr] Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/foundations/session4/lifetimes) [INFO] [stdout] warning: unused import: `rc::Rc` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fmt::Debug, rc::Rc}; [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 variable: `animal` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let animal = get_animal(); // impl Animal for Cat [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_animal` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `DebuggableClonableAnimal` is never used [INFO] [stdout] --> foundations/session4/traits/src/main.rs:31:7 [INFO] [stdout] | [INFO] [stdout] 31 | trait DebuggableClonableAnimal: Animal+Debug+Clone {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling scoped_threads v0.1.0 (/opt/rustwide/workdir/foundations/session2/scoped_threads) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] | ------ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 14 - Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] 14 + Strong(()), // Strong reference to the next node, which increases the [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | ---- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` 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] 16 - Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] 16 + Weak(()), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir/foundations/session2/hello) [INFO] [stderr] Compiling save_dynamic_bytes v0.1.0 (/opt/rustwide/workdir/foundations/session4/save_dynamic_bytes) [INFO] [stderr] Compiling workers v0.1.0 (/opt/rustwide/workdir/foundations/session2/workers) [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/rustwide/workdir/foundations/session1/hello_world) [INFO] [stderr] Compiling refcell v0.1.0 (/opt/rustwide/workdir/foundations/session4/refcell) [INFO] [stderr] Compiling footgun v0.1.0 (/opt/rustwide/workdir/foundations/session2/footgun) [INFO] [stderr] Compiling parking v0.1.0 (/opt/rustwide/workdir/foundations/session2/parking) [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Compiling tokio-stream v0.1.17 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling zerofrom-derive v0.1.5 [INFO] [stderr] Compiling yoke-derive v0.7.5 [INFO] [stderr] Compiling tracing-attributes v0.1.28 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling zerovec-derive v0.10.3 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling icu_provider_macros v1.5.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling thiserror-impl v2.0.11 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling async-trait v0.1.86 [INFO] [stderr] Compiling pin-project-internal v1.1.9 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling clap_derive v4.5.24 [INFO] [stderr] Compiling bytemuck_derive v1.8.1 [INFO] [stderr] Compiling zerofrom v0.1.5 [INFO] [stderr] Compiling yoke v0.7.5 [INFO] [stderr] Compiling zerocopy v0.7.35 [INFO] [stderr] Compiling zstd v0.13.3 [INFO] [stderr] Compiling zerovec v0.10.4 [INFO] [stderr] Compiling async-recursion v1.1.1 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling ppv-lite86 v0.2.20 [INFO] [stderr] Compiling pin-project v1.1.9 [INFO] [stderr] Compiling bytemuck v1.21.0 [INFO] [stderr] Compiling save_bytes v0.1.0 (/opt/rustwide/workdir/foundations/session4/save_bytes) [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling clap v4.5.27 [INFO] [stderr] Compiling rand v0.9.0 [INFO] [stderr] Compiling tinystr v0.7.6 [INFO] [stderr] Compiling icu_collections v1.5.0 [INFO] [stderr] Compiling icu_locid v1.5.0 [INFO] [stderr] Compiling uuid v1.16.0 [INFO] [stderr] Compiling icu_provider v1.5.0 [INFO] [stderr] Compiling http-body-util v0.1.2 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling axum-core v0.5.0 [INFO] [stderr] Compiling axum-core v0.4.5 [INFO] [stderr] Compiling hello_async v0.1.0 (/opt/rustwide/workdir/foundations/session3/hello_async) [INFO] [stderr] Compiling icu_locid_transform v1.5.0 [INFO] [stderr] Compiling icu_properties v1.5.1 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling either v1.13.0 [INFO] [stderr] Compiling serde_path_to_error v0.1.16 [INFO] [stderr] Compiling bincode v1.3.3 [INFO] [stderr] Compiling tracing-serde v0.2.0 [INFO] [stderr] Compiling rayon v1.10.0 [INFO] [stderr] Compiling tokio-util v0.7.13 [INFO] [stderr] Compiling tokio-native-tls v0.3.1 [INFO] [stderr] Compiling tower v0.4.13 [INFO] [stderr] Compiling hyper v0.14.32 [INFO] [stderr] Compiling async-compression v0.4.22 [INFO] [stderr] Compiling tokio_testing v0.1.0 (/opt/rustwide/workdir/foundations/session3/tokio_testing) [INFO] [stderr] Compiling shared_data v0.1.0 (/opt/rustwide/workdir/foundations/session5/shared_data) [INFO] [stderr] Compiling authentication v0.1.0 (/opt/rustwide/workdir/foundations/session1/authentication) [INFO] [stderr] Compiling tracing-subscriber v0.3.19 [INFO] [stderr] Compiling login v0.1.0 (/opt/rustwide/workdir/foundations/session1/login) [INFO] [stderr] Compiling errors v0.1.0 (/opt/rustwide/workdir/foundations/session3/errors) [INFO] [stderr] Compiling login_manager v0.1.0 (/opt/rustwide/workdir/foundations/session1/login_manager) [INFO] [stderr] Compiling h2 v0.4.7 [INFO] [stderr] Compiling tower v0.5.2 [INFO] [stderr] Compiling tower-http v0.6.5 [INFO] [stderr] Compiling pinning v0.1.0 (/opt/rustwide/workdir/foundations/session3/pinning) [INFO] [stderr] Compiling blocking v0.1.0 (/opt/rustwide/workdir/foundations/session3/blocking) [INFO] [stderr] Compiling async_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session3/async_mutex) [INFO] [stderr] Compiling tcpserver v0.1.0 (/opt/rustwide/workdir/foundations/session3/tcpserver) [INFO] [stderr] Compiling fileio v0.1.0 (/opt/rustwide/workdir/foundations/session3/fileio) [INFO] [stderr] Compiling hello_tokio v0.1.0 (/opt/rustwide/workdir/foundations/session3/hello_tokio) [INFO] [stderr] Compiling async_channels v0.1.0 (/opt/rustwide/workdir/foundations/session3/async_channels) [INFO] [stderr] Compiling tokio_select_broadcast v0.1.0 (/opt/rustwide/workdir/foundations/session3/tokio_select_broadcast) [INFO] [stderr] Compiling tokio_select v0.1.0 (/opt/rustwide/workdir/foundations/session3/tokio_select) [INFO] [stdout] warning: function `read_lines` is never used [INFO] [stdout] --> foundations/session3/fileio/src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn read_lines

(filename: P) -> io::Result>> [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 `line_count` is never used [INFO] [stdout] --> foundations/session3/fileio/src/main.rs:40:10 [INFO] [stdout] | [INFO] [stdout] 40 | async fn line_count(filename: String) -> io::Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `one` is never used [INFO] [stdout] --> foundations/session3/pinning/src/main.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | async fn one() { [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 `two` is never used [INFO] [stdout] --> foundations/session3/pinning/src/main.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 24 | async fn two() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `call_one_of_them` is never used [INFO] [stdout] --> foundations/session3/pinning/src/main.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | async fn call_one_of_them(n:u32) -> Pin>> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling icu_normalizer v1.5.0 [INFO] [stderr] Compiling tracing-appender v0.2.3 [INFO] [stderr] Compiling idna_adapter v1.2.0 [INFO] [stderr] Compiling idna v1.0.3 [INFO] [stderr] Compiling url v2.5.4 [INFO] [stderr] Compiling sysinfo v0.33.1 [INFO] [stderr] Compiling sqlx-core v0.8.3 [INFO] [stderr] Compiling collector v0.1.0 (/opt/rustwide/workdir/foundations/session5/collector) [INFO] [stderr] Compiling hyper v1.5.2 [INFO] [stderr] Compiling sqlx-sqlite v0.8.3 [INFO] [stderr] Compiling file_adapter v0.1.0 (/opt/rustwide/workdir/bonus/file_adapter) [INFO] [stderr] Compiling hyper-util v0.1.10 [INFO] [stderr] Compiling hyper-tls v0.6.0 [INFO] [stderr] Compiling axum v0.7.9 [INFO] [stderr] Compiling axum v0.8.1 [INFO] [stderr] Compiling sqlx-macros-core v0.8.3 [INFO] [stderr] Compiling reqwest v0.12.15 [INFO] [stderr] Compiling sqlx-macros v0.8.3 [INFO] [stderr] Compiling sqlx v0.8.3 [INFO] [stderr] Compiling db v0.1.0 (/opt/rustwide/workdir/foundations/session4/db) [INFO] [stdout] warning: fields `id` and `message` are never read [INFO] [stdout] --> foundations/session4/db/src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Message { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | id: i64, [INFO] [stdout] | ^^ [INFO] [stdout] 8 | message: String, [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] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling restclient v0.1.0 (/opt/rustwide/workdir/foundations/session3/restclient) [INFO] [stdout] warning: fields `latitude`, `longitude`, and `current_weather` are never read [INFO] [stdout] --> foundations/session3/restclient/src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Weather { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 6 | latitude: f64, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 7 | longitude: f64, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 8 | current_weather: CurrentWeather, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Weather` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `temperature` and `windspeed` are never read [INFO] [stdout] --> foundations/session3/restclient/src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | struct CurrentWeather { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 13 | temperature: f64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 14 | windspeed: f64, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CurrentWeather` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling collector_server v0.1.0 (/opt/rustwide/workdir/foundations/session5/collector_server) [INFO] [stderr] Compiling simple_http_server v0.1.0 (/opt/rustwide/workdir/services/http_server) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 42s [INFO] running `Command { std: "docker" "inspect" "01233f0807d8599968372d3db79ab5e53460bc8bccaf8eb60d99faaefe198d55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01233f0807d8599968372d3db79ab5e53460bc8bccaf8eb60d99faaefe198d55", kill_on_drop: false }` [INFO] [stdout] 01233f0807d8599968372d3db79ab5e53460bc8bccaf8eb60d99faaefe198d55 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c13e5a342f514c529d0b2c7ef74a118bd5c486363e78873aaad4d6bcb594ca69 [INFO] running `Command { std: "docker" "start" "-a" "c13e5a342f514c529d0b2c7ef74a118bd5c486363e78873aaad4d6bcb594ca69", kill_on_drop: false }` [INFO] [stderr] Compiling db v0.1.0 (/opt/rustwide/workdir/foundations/session4/db) [INFO] [stderr] Compiling collector v0.1.0 (/opt/rustwide/workdir/foundations/session5/collector) [INFO] [stderr] Compiling login_manager v0.1.0 (/opt/rustwide/workdir/foundations/session1/login_manager) [INFO] [stderr] Compiling restclient v0.1.0 (/opt/rustwide/workdir/foundations/session3/restclient) [INFO] [stderr] Compiling hello_async v0.1.0 (/opt/rustwide/workdir/foundations/session3/hello_async) [INFO] [stderr] Compiling pinning v0.1.0 (/opt/rustwide/workdir/foundations/session3/pinning) [INFO] [stderr] Compiling affinity v0.1.0 (/opt/rustwide/workdir/foundations/session2/affinity) [INFO] [stderr] Compiling dashing v0.1.0 (/opt/rustwide/workdir/foundations/session2/dashing) [INFO] [stderr] Compiling save_bytes v0.1.0 (/opt/rustwide/workdir/foundations/session4/save_bytes) [INFO] [stderr] Compiling file_adapter v0.1.0 (/opt/rustwide/workdir/bonus/file_adapter) [INFO] [stderr] Compiling collector_server v0.1.0 (/opt/rustwide/workdir/foundations/session5/collector_server) [INFO] [stderr] Compiling simple_http_server v0.1.0 (/opt/rustwide/workdir/services/http_server) [INFO] [stderr] Compiling tprio v0.1.0 (/opt/rustwide/workdir/foundations/session2/tprio) [INFO] [stderr] Compiling errors v0.1.0 (/opt/rustwide/workdir/foundations/session3/errors) [INFO] [stderr] Compiling login v0.1.0 (/opt/rustwide/workdir/foundations/session1/login) [INFO] [stderr] Compiling shared_data v0.1.0 (/opt/rustwide/workdir/foundations/session5/shared_data) [INFO] [stdout] warning: static `HIGH_COUNT` is never used [INFO] [stdout] --> foundations/session2/tprio/src/main.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | static HIGH_COUNT: AtomicI32 = AtomicI32::new(0); [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 `one` is never used [INFO] [stdout] --> foundations/session3/pinning/src/main.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | async fn one() { [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 `two` is never used [INFO] [stdout] --> foundations/session3/pinning/src/main.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 24 | async fn two() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `call_one_of_them` is never used [INFO] [stdout] --> foundations/session3/pinning/src/main.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | async fn call_one_of_them(n:u32) -> Pin>> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tcpserver v0.1.0 (/opt/rustwide/workdir/foundations/session3/tcpserver) [INFO] [stdout] warning: fields `latitude`, `longitude`, and `current_weather` are never read [INFO] [stdout] --> foundations/session3/restclient/src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Weather { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 6 | latitude: f64, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 7 | longitude: f64, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 8 | current_weather: CurrentWeather, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Weather` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `temperature` and `windspeed` are never read [INFO] [stdout] --> foundations/session3/restclient/src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | struct CurrentWeather { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 13 | temperature: f64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 14 | windspeed: f64, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CurrentWeather` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling fileio v0.1.0 (/opt/rustwide/workdir/foundations/session3/fileio) [INFO] [stderr] Compiling authentication v0.1.0 (/opt/rustwide/workdir/foundations/session1/authentication) [INFO] [stdout] warning: function `read_lines` is never used [INFO] [stdout] --> foundations/session3/fileio/src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn read_lines

(filename: P) -> io::Result>> [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 `line_count` is never used [INFO] [stdout] --> foundations/session3/fileio/src/main.rs:40:10 [INFO] [stdout] | [INFO] [stdout] 40 | async fn line_count(filename: String) -> io::Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tokio_testing v0.1.0 (/opt/rustwide/workdir/foundations/session3/tokio_testing) [INFO] [stderr] Compiling blocking v0.1.0 (/opt/rustwide/workdir/foundations/session3/blocking) [INFO] [stderr] Compiling tokio_select v0.1.0 (/opt/rustwide/workdir/foundations/session3/tokio_select) [INFO] [stderr] Compiling async_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session3/async_mutex) [INFO] [stderr] Compiling hello_tokio v0.1.0 (/opt/rustwide/workdir/foundations/session3/hello_tokio) [INFO] [stderr] Compiling tokio_select_broadcast v0.1.0 (/opt/rustwide/workdir/foundations/session3/tokio_select_broadcast) [INFO] [stderr] Compiling async_channels v0.1.0 (/opt/rustwide/workdir/foundations/session3/async_channels) [INFO] [stderr] Compiling rwlocks v0.1.0 (/opt/rustwide/workdir/foundations/session2/rwlocks) [INFO] [stderr] Compiling threadpool v0.1.0 (/opt/rustwide/workdir/foundations/session2/threadpool) [INFO] [stderr] Compiling dropping v0.1.0 (/opt/rustwide/workdir/foundations/session4/dropping) [INFO] [stdout] warning: fields `id` and `message` are never read [INFO] [stdout] --> foundations/session4/db/src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Message { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | id: i64, [INFO] [stdout] | ^^ [INFO] [stdout] 8 | message: String, [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] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling deadlocks v0.1.0 (/opt/rustwide/workdir/foundations/session2/deadlocks) [INFO] [stderr] Compiling internal_arc_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session4/internal_arc_mutex) [INFO] [stderr] Compiling refcount v0.1.0 (/opt/rustwide/workdir/foundations/session4/refcount) [INFO] [stderr] Compiling channels v0.1.0 (/opt/rustwide/workdir/foundations/session2/channels) [INFO] [stderr] Compiling smart_pointer v0.1.0 (/opt/rustwide/workdir/foundations/session4/smart_pointer) [INFO] [stderr] Compiling scoped_threads v0.1.0 (/opt/rustwide/workdir/foundations/session2/scoped_threads) [INFO] [stderr] Compiling refcell v0.1.0 (/opt/rustwide/workdir/foundations/session4/refcell) [INFO] [stderr] Compiling atomicrefcount v0.1.0 (/opt/rustwide/workdir/foundations/session4/atomicrefcount) [INFO] [stderr] Compiling workers v0.1.0 (/opt/rustwide/workdir/foundations/session2/workers) [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/rustwide/workdir/foundations/session1/hello_world) [INFO] [stderr] Compiling generics v0.1.0 (/opt/rustwide/workdir/foundations/session4/generics_and_iterators) [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir/foundations/session2/hello) [INFO] [stderr] Compiling linked_list v0.1.0 (/opt/rustwide/workdir/foundations/session4/linked_list) [INFO] [stderr] Compiling parking v0.1.0 (/opt/rustwide/workdir/foundations/session2/parking) [INFO] [stderr] Compiling traits v0.1.0 (/opt/rustwide/workdir/foundations/session4/traits) [INFO] [stderr] Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/foundations/session4/lifetimes) [INFO] [stdout] warning: unused import: `rc::Rc` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fmt::Debug, rc::Rc}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> foundations/session4/generics_and_iterators/src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | fn iter(&self) -> HashMapBucketIter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 32 | fn iter(&self) -> HashMapBucketIter<'_, K, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `animal` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let animal = get_animal(); // impl Animal for Cat [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_animal` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `DebuggableClonableAnimal` is never used [INFO] [stdout] --> foundations/session4/traits/src/main.rs:31:7 [INFO] [stdout] | [INFO] [stdout] 31 | trait DebuggableClonableAnimal: Animal+Debug+Clone {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling thread_builder v0.1.0 (/opt/rustwide/workdir/foundations/session2/thread_builder) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] | ------ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 14 - Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] 14 + Strong(()), // Strong reference to the next node, which increases the [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | ---- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` 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] 16 - Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] 16 + Weak(()), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling footgun v0.1.0 (/opt/rustwide/workdir/foundations/session2/footgun) [INFO] [stderr] Compiling save_dynamic_bytes v0.1.0 (/opt/rustwide/workdir/foundations/session4/save_dynamic_bytes) [INFO] [stderr] Compiling external_arc_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session4/external_arc_mutex) [INFO] [stderr] Compiling operator_overloading v0.1.0 (/opt/rustwide/workdir/foundations/session4/operator_overloading) [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/foundations/session1/variables) [INFO] [stderr] Compiling divide_work v0.1.0 (/opt/rustwide/workdir/foundations/session2/divide_work) [INFO] [stderr] Compiling mutexes v0.1.0 (/opt/rustwide/workdir/foundations/session2/mutexes) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> foundations/session2/mutexes/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | for i in 0..10 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 8.32s [INFO] running `Command { std: "docker" "inspect" "c13e5a342f514c529d0b2c7ef74a118bd5c486363e78873aaad4d6bcb594ca69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c13e5a342f514c529d0b2c7ef74a118bd5c486363e78873aaad4d6bcb594ca69", kill_on_drop: false }` [INFO] [stdout] c13e5a342f514c529d0b2c7ef74a118bd5c486363e78873aaad4d6bcb594ca69