[INFO] fetching crate loop-forever 1.0.2... [INFO] testing loop-forever-1.0.2 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate loop-forever 1.0.2 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate loop-forever 1.0.2 [INFO] finished tweaking crates.io crate loop-forever 1.0.2 [INFO] tweaked toml for crates.io crate loop-forever 1.0.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate loop-forever 1.0.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c69c09b8efaa6e68e25c96330dd08c2c290a8a022685513e65f9c7d555dc01e1 [INFO] running `Command { std: "docker" "start" "-a" "c69c09b8efaa6e68e25c96330dd08c2c290a8a022685513e65f9c7d555dc01e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c69c09b8efaa6e68e25c96330dd08c2c290a8a022685513e65f9c7d555dc01e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c69c09b8efaa6e68e25c96330dd08c2c290a8a022685513e65f9c7d555dc01e1", kill_on_drop: false }` [INFO] [stdout] c69c09b8efaa6e68e25c96330dd08c2c290a8a022685513e65f9c7d555dc01e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0a1364b5e2d943aa128c93d8529201c0eec9d464dca88e324d2fb73442751578 [INFO] running `Command { std: "docker" "start" "-a" "0a1364b5e2d943aa128c93d8529201c0eec9d464dca88e324d2fb73442751578", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling loop-forever v1.0.2 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/forever.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_fn, core_intrinsics, lang_items, libc, start)] [INFO] [stdout] | ^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.54.0; see for more information [INFO] [stdout] = note: split into finer-grained feature gates [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/forever.rs:1:57 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_fn, core_intrinsics, lang_items, libc, start)] [INFO] [stdout] | ^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.86.0; see for more information [INFO] [stdout] = note: not portable enough and never RFC'd [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `start` in this scope [INFO] [stdout] --> src/forever.rs:56:3 [INFO] [stdout] | [INFO] [stdout] 56 | #[start] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `start` is in scope, but it is a function, not an attribute [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `loop-forever` (bin "forever") due to 9 previous errors; 2 warnings emitted [INFO] [stdout] error: cannot find macro `asm` in this scope [INFO] [stdout] --> src/forever.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | asm!("syscall" :::: "volatile", "intel"); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this macro [INFO] [stdout] | [INFO] [stdout] 6 + use core::arch::asm; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot find macro `asm` in this scope [INFO] [stdout] --> src/forever.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | asm!("mov rax, 34" ::: "rax" : "volatile", "intel"); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this macro [INFO] [stdout] | [INFO] [stdout] 6 + use core::arch::asm; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/forever.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_fn, core_intrinsics, lang_items, libc, start)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/forever.rs:2:56 [INFO] [stdout] | [INFO] [stdout] 2 | #![cfg_attr(not(all(windows, target_arch = "x86_64")), feature(asm))] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library [INFO] [stdout] --> src/forever.rs:1:39 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_fn, core_intrinsics, lang_items, libc, start)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: using it is strongly discouraged [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/forever.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(internal_features)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library [INFO] [stdout] --> src/forever.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_fn, core_intrinsics, lang_items, libc, start)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: using it is strongly discouraged [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0522]: definition of an unknown lang item: `eh_unwind_resume` [INFO] [stdout] --> src/forever.rs:65:1 [INFO] [stdout] | [INFO] [stdout] 65 | #[lang = "eh_unwind_resume"] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ definition of unknown lang item `eh_unwind_resume` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `panic_fmt` [INFO] [stdout] --> src/forever.rs:71:1 [INFO] [stdout] | [INFO] [stdout] 71 | / pub extern "C" fn rust_begin_panic(_msg: ::core::fmt::Arguments, _file: &'static str, _line: u32) { [INFO] [stdout] 72 | | unsafe { ::core::intrinsics::abort() } [INFO] [stdout] 73 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `forever` depends on) [INFO] [stdout] = note: first definition in `core` loaded from /opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-e854c786e1aa7304.rlib [INFO] [stdout] = note: second definition in the local crate (`forever`) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0152, E0522, E0554, E0557. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0152`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0a1364b5e2d943aa128c93d8529201c0eec9d464dca88e324d2fb73442751578", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a1364b5e2d943aa128c93d8529201c0eec9d464dca88e324d2fb73442751578", kill_on_drop: false }` [INFO] [stdout] 0a1364b5e2d943aa128c93d8529201c0eec9d464dca88e324d2fb73442751578