[INFO] fetching crate arsc-rs 0.1.0... [INFO] testing arsc-rs-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] extracting crate arsc-rs 0.1.0 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate arsc-rs 0.1.0 [INFO] finished tweaking crates.io crate arsc-rs 0.1.0 [INFO] tweaked toml for crates.io crate arsc-rs 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate arsc-rs 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 3 packages to latest compatible versions [INFO] [stderr] Adding memoffset v0.8.0 (available: v0.9.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded memoffset v0.8.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f97a92b8cd3ba0a26a9e29631fef6de0c3eb1ca0a0c509439213075bb4ee1d8a [INFO] running `Command { std: "docker" "start" "-a" "f97a92b8cd3ba0a26a9e29631fef6de0c3eb1ca0a0c509439213075bb4ee1d8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f97a92b8cd3ba0a26a9e29631fef6de0c3eb1ca0a0c509439213075bb4ee1d8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f97a92b8cd3ba0a26a9e29631fef6de0c3eb1ca0a0c509439213075bb4ee1d8a", kill_on_drop: false }` [INFO] [stdout] f97a92b8cd3ba0a26a9e29631fef6de0c3eb1ca0a0c509439213075bb4ee1d8a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2eeae75e0bb608e25275eaa25875bd9a44fd919187078bfb83a2d1421c750c5c [INFO] running `Command { std: "docker" "start" "-a" "2eeae75e0bb608e25275eaa25875bd9a44fd919187078bfb83a2d1421c750c5c", kill_on_drop: false }` [INFO] [stderr] Compiling memoffset v0.8.0 [INFO] [stderr] Compiling arsc-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: use of unstable library feature `arbitrary_self_types` [INFO] [stdout] --> src/lib.rs:20:50 [INFO] [stdout] | [INFO] [stdout] 20 | ops::{CoerceUnsized, Deref, DispatchFromDyn, Receiver}, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #44874 for more information [INFO] [stdout] = help: add `#![feature(arbitrary_self_types)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-11-06; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `arbitrary_self_types` [INFO] [stdout] --> src/lib.rs:43:31 [INFO] [stdout] | [INFO] [stdout] 43 | impl Receiver for Arsc {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #44874 for more information [INFO] [stdout] = help: add `#![feature(arbitrary_self_types)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-11-06; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `pointer_byte_offsets` has been stable since 1.75.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(pointer_byte_offsets)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `receiver_trait` [INFO] [stdout] --> src/lib.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | #![feature(receiver_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0119]: conflicting implementations of trait `Receiver` for type `Arsc<_, _>` [INFO] [stdout] --> src/lib.rs:43:1 [INFO] [stdout] | [INFO] [stdout] 43 | impl Receiver for Arsc {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: conflicting implementation in crate `core`: [INFO] [stdout] - impl Receiver for P [INFO] [stdout] where

::Target == T, P: Deref, P: ?Sized, T: ?Sized; [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0119, E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0119`. [INFO] [stdout] [INFO] [stderr] error: could not compile `arsc-rs` (lib) due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "2eeae75e0bb608e25275eaa25875bd9a44fd919187078bfb83a2d1421c750c5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2eeae75e0bb608e25275eaa25875bd9a44fd919187078bfb83a2d1421c750c5c", kill_on_drop: false }` [INFO] [stdout] 2eeae75e0bb608e25275eaa25875bd9a44fd919187078bfb83a2d1421c750c5c