[INFO] fetching crate portal-trait-transformer 0.0.0... [INFO] testing portal-trait-transformer-0.0.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate portal-trait-transformer 0.0.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate portal-trait-transformer 0.0.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate portal-trait-transformer 0.0.0 [INFO] tweaked toml for crates.io crate portal-trait-transformer 0.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate portal-trait-transformer 0.0.0 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate portal-trait-transformer 0.0.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 80f3bd6cecb8fb39b0b2b8430a8a34910286073f4f4b8e0ece7053eb1c9c490f [INFO] running `Command { std: "docker" "start" "-a" "80f3bd6cecb8fb39b0b2b8430a8a34910286073f4f4b8e0ece7053eb1c9c490f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "80f3bd6cecb8fb39b0b2b8430a8a34910286073f4f4b8e0ece7053eb1c9c490f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80f3bd6cecb8fb39b0b2b8430a8a34910286073f4f4b8e0ece7053eb1c9c490f", kill_on_drop: false }` [INFO] [stdout] 80f3bd6cecb8fb39b0b2b8430a8a34910286073f4f4b8e0ece7053eb1c9c490f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 91d8ece65ea5776d4527c238a35d5acb97ec63826851ef9586a7cf3a30b20996 [INFO] running `Command { std: "docker" "start" "-a" "91d8ece65ea5776d4527c238a35d5acb97ec63826851ef9586a7cf3a30b20996", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Compiling portal-trait-transformer v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `ToTokens` [INFO] [stdout] --> src/transformer.rs:10:34 [INFO] [stdout] | [INFO] [stdout] 10 | use quote::{format_ident, quote, ToTokens}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `AngleBracketedGenericArguments` [INFO] [stdout] --> src/transformer.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | AngleBracketedGenericArguments, Ident, ItemImpl, ItemTrait, Path, PathSegment, Result, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/transformer.rs:130:17 [INFO] [stdout] | [INFO] [stdout] 130 | let mut path: Path = Path { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/transformer.rs:129:18 [INFO] [stdout] | [INFO] [stdout] 129 | let (a, b, c) = tr.generics.split_for_impl(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/transformer.rs:129:24 [INFO] [stdout] | [INFO] [stdout] 129 | let (a, b, c) = tr.generics.split_for_impl(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.28s [INFO] running `Command { std: "docker" "inspect" "91d8ece65ea5776d4527c238a35d5acb97ec63826851ef9586a7cf3a30b20996", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91d8ece65ea5776d4527c238a35d5acb97ec63826851ef9586a7cf3a30b20996", kill_on_drop: false }` [INFO] [stdout] 91d8ece65ea5776d4527c238a35d5acb97ec63826851ef9586a7cf3a30b20996 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e3c1993a7ccd3c1a0b53f9f6a64c8559f9b78d8cf408ed30d72e95fd768618a9 [INFO] running `Command { std: "docker" "start" "-a" "e3c1993a7ccd3c1a0b53f9f6a64c8559f9b78d8cf408ed30d72e95fd768618a9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling pin-project-lite v0.2.13 [INFO] [stderr] Compiling tokio v1.35.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Compiling portal-trait-transformer v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `ToTokens` [INFO] [stdout] --> src/transformer.rs:10:34 [INFO] [stdout] | [INFO] [stdout] 10 | use quote::{format_ident, quote, ToTokens}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `AngleBracketedGenericArguments` [INFO] [stdout] --> src/transformer.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | AngleBracketedGenericArguments, Ident, ItemImpl, ItemTrait, Path, PathSegment, Result, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/transformer.rs:130:17 [INFO] [stdout] | [INFO] [stdout] 130 | let mut path: Path = Path { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/transformer.rs:129:18 [INFO] [stdout] | [INFO] [stdout] 129 | let (a, b, c) = tr.generics.split_for_impl(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/transformer.rs:129:24 [INFO] [stdout] | [INFO] [stdout] 129 | let (a, b, c) = tr.generics.split_for_impl(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ToTokens` [INFO] [stdout] --> src/transformer.rs:10:34 [INFO] [stdout] | [INFO] [stdout] 10 | use quote::{format_ident, quote, ToTokens}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `AngleBracketedGenericArguments` [INFO] [stdout] --> src/transformer.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | AngleBracketedGenericArguments, Ident, ItemImpl, ItemTrait, Path, PathSegment, Result, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/transformer.rs:130:17 [INFO] [stdout] | [INFO] [stdout] 130 | let mut path: Path = Path { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/transformer.rs:129:18 [INFO] [stdout] | [INFO] [stdout] 129 | let (a, b, c) = tr.generics.split_for_impl(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/transformer.rs:129:24 [INFO] [stdout] | [INFO] [stdout] 129 | let (a, b, c) = tr.generics.split_for_impl(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> examples/trait_transformer.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | #![feature(return_type_notation)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `portal-trait-transformer` (example "trait_transformer") due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "e3c1993a7ccd3c1a0b53f9f6a64c8559f9b78d8cf408ed30d72e95fd768618a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3c1993a7ccd3c1a0b53f9f6a64c8559f9b78d8cf408ed30d72e95fd768618a9", kill_on_drop: false }` [INFO] [stdout] e3c1993a7ccd3c1a0b53f9f6a64c8559f9b78d8cf408ed30d72e95fd768618a9