[INFO] cloning repository https://github.com/Aiden2207/prefetch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aiden2207/prefetch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden2207%2Fprefetch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden2207%2Fprefetch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d47f33c707258a679c9c5d693f27ba1542fdcd73
[INFO] checking Aiden2207/prefetch against master#c8a31b780d5415358566a20b94912620a3f27067 for pr-139493-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden2207%2Fprefetch" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Aiden2207/prefetch
[INFO] finished tweaking git repo https://github.com/Aiden2207/prefetch
[INFO] tweaked toml for git repo https://github.com/Aiden2207/prefetch written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Aiden2207/prefetch on toolchain c8a31b780d5415358566a20b94912620a3f27067
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Aiden2207/prefetch 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" "+c8a31b780d5415358566a20b94912620a3f27067" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+c8a31b780d5415358566a20b94912620a3f27067" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8d5e4a647c179cd0e92d7776b4587a7cdaa267e32f6eb90ddca2800d5741b79
[INFO] running `Command { std: "docker" "start" "-a" "c8d5e4a647c179cd0e92d7776b4587a7cdaa267e32f6eb90ddca2800d5741b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8d5e4a647c179cd0e92d7776b4587a7cdaa267e32f6eb90ddca2800d5741b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8d5e4a647c179cd0e92d7776b4587a7cdaa267e32f6eb90ddca2800d5741b79", kill_on_drop: false }`
[INFO] [stdout] c8d5e4a647c179cd0e92d7776b4587a7cdaa267e32f6eb90ddca2800d5741b79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+c8a31b780d5415358566a20b94912620a3f27067" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c904ae027c3f5358d1522a9c51c35e63347995e6cdae7df3c71693b5d752bcef
[INFO] running `Command { std: "docker" "start" "-a" "c904ae027c3f5358d1522a9c51c35e63347995e6cdae7df3c71693b5d752bcef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking prefetch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generators)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.75.0; see <https://github.com/rust-lang/rust/pull/116958> for more information
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Generator`, `std::ops::GeneratorState`
[INFO] [stdout]  --> src/main.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ops::{Generator, GeneratorState},
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |           |
[INFO] [stdout]   |           no `Generator` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Generator`, `std::ops::GeneratorState`
[INFO] [stdout]  --> src/util.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Generator, GeneratorState};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |                |
[INFO] [stdout]   |                no `Generator` in `ops`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this unresolved item through its public re-export instead:
[INFO] [stdout]           crate::Generator
[INFO] [stdout]   = help: consider importing this unresolved item through its public re-export instead:
[INFO] [stdout]           crate::GeneratorState
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         yield t;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/linked_list.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         yield t;
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]     = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:48:73
[INFO] [stdout]    |
[INFO] [stdout] 48 |             (GeneratorState::Yielded(l), GeneratorState::Yielded(r)) => yield (l, r),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:65:51
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         yield t
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         yield t;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/linked_list.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         yield t;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 40 |         #[coroutine] || loop {
[INFO] [stdout]    |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/linked_list.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 55 |         #[coroutine] move || {
[INFO] [stdout]    |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/linked_list.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 73 |         #[coroutine] move || {
[INFO] [stdout]    |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/linked_list.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         yield t;
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]     = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]    --> src/linked_list.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         yield t;
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]     |
[INFO] [stdout]  97 |         #[coroutine] move || loop {
[INFO] [stdout]     |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:48:73
[INFO] [stdout]    |
[INFO] [stdout] 48 |             (GeneratorState::Yielded(l), GeneratorState::Yielded(r)) => yield (l, r),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/util.rs:48:73
[INFO] [stdout]    |
[INFO] [stdout] 48 |             (GeneratorState::Yielded(l), GeneratorState::Yielded(r)) => yield (l, r),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 41 |     #[coroutine] move || loop {
[INFO] [stdout]    |     ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/util.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 53 |     #[coroutine] move || {
[INFO] [stdout]    |     ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:65:51
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         yield t
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `generator_trait`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generator_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prefetch` (bin "prefetch" test) due to 26 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generators)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.75.0; see <https://github.com/rust-lang/rust/pull/116958> for more information
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Generator`, `std::ops::GeneratorState`
[INFO] [stdout]  --> src/main.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ops::{Generator, GeneratorState},
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |           |
[INFO] [stdout]   |           no `Generator` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Generator`, `std::ops::GeneratorState`
[INFO] [stdout]  --> src/util.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Generator, GeneratorState};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |                |
[INFO] [stdout]   |                no `Generator` in `ops`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this unresolved item through its public re-export instead:
[INFO] [stdout]           crate::Generator
[INFO] [stdout]   = help: consider importing this unresolved item through its public re-export instead:
[INFO] [stdout]           crate::GeneratorState
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         yield t;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/linked_list.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         yield t;
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]     = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:48:73
[INFO] [stdout]    |
[INFO] [stdout] 48 |             (GeneratorState::Yielded(l), GeneratorState::Yielded(r)) => yield (l, r),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:65:51
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         yield t
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         yield t;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/linked_list.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         yield t;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 40 |         #[coroutine] || loop {
[INFO] [stdout]    |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/linked_list.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 55 |         #[coroutine] move || {
[INFO] [stdout]    |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/linked_list.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/linked_list.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   yield t;
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 73 |         #[coroutine] move || {
[INFO] [stdout]    |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/linked_list.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         yield t;
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]     = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]    --> src/linked_list.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         yield t;
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]     |
[INFO] [stdout]  97 |         #[coroutine] move || loop {
[INFO] [stdout]     |         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:48:73
[INFO] [stdout]    |
[INFO] [stdout] 48 |             (GeneratorState::Yielded(l), GeneratorState::Yielded(r)) => yield (l, r),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/util.rs:48:73
[INFO] [stdout]    |
[INFO] [stdout] 48 |             (GeneratorState::Yielded(l), GeneratorState::Yielded(r)) => yield (l, r),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 41 |     #[coroutine] move || loop {
[INFO] [stdout]    |     ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
[INFO] [stdout]   --> src/util.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine
[INFO] [stdout]    |
[INFO] [stdout] 53 |     #[coroutine] move || {
[INFO] [stdout]    |     ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:65:51
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     GeneratorState::Yielded(t) => yield t,
[INFO] [stdout]    |                                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/util.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         yield t
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout]    = help: add `#![feature(yield_expr)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-10-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `generator_trait`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generator_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prefetch` (bin "prefetch") due to 26 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "c904ae027c3f5358d1522a9c51c35e63347995e6cdae7df3c71693b5d752bcef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c904ae027c3f5358d1522a9c51c35e63347995e6cdae7df3c71693b5d752bcef", kill_on_drop: false }`
[INFO] [stdout] c904ae027c3f5358d1522a9c51c35e63347995e6cdae7df3c71693b5d752bcef
