[INFO] fetching crate portal-trait-transformer 0.0.0...
[INFO] testing portal-trait-transformer-0.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate portal-trait-transformer 0.0.0 into /workspace/builds/worker-3-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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate portal-trait-transformer 0.0.0 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] 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b44de8db6c7cc30a2d23409c8fe54c54c972475a6ad4113ba6c146fcdb504268
[INFO] running `Command { std: "docker" "start" "-a" "b44de8db6c7cc30a2d23409c8fe54c54c972475a6ad4113ba6c146fcdb504268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b44de8db6c7cc30a2d23409c8fe54c54c972475a6ad4113ba6c146fcdb504268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44de8db6c7cc30a2d23409c8fe54c54c972475a6ad4113ba6c146fcdb504268", kill_on_drop: false }`
[INFO] [stdout] b44de8db6c7cc30a2d23409c8fe54c54c972475a6ad4113ba6c146fcdb504268
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0684170dea3bd99b18054477766157e1d1acc6b55dcd7aaf7765a957b232fc64
[INFO] running `Command { std: "docker" "start" "-a" "0684170dea3bd99b18054477766157e1d1acc6b55dcd7aaf7765a957b232fc64", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[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: 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: 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.29s
[INFO] running `Command { std: "docker" "inspect" "0684170dea3bd99b18054477766157e1d1acc6b55dcd7aaf7765a957b232fc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0684170dea3bd99b18054477766157e1d1acc6b55dcd7aaf7765a957b232fc64", kill_on_drop: false }`
[INFO] [stdout] 0684170dea3bd99b18054477766157e1d1acc6b55dcd7aaf7765a957b232fc64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17b594d9a3f456e8e5b893782c8366ab07694c91e136e84d38f36880ddfe9d8c
[INFO] running `Command { std: "docker" "start" "-a" "17b594d9a3f456e8e5b893782c8366ab07694c91e136e84d38f36880ddfe9d8c", 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: 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: 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 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: 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: 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] 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" "17b594d9a3f456e8e5b893782c8366ab07694c91e136e84d38f36880ddfe9d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b594d9a3f456e8e5b893782c8366ab07694c91e136e84d38f36880ddfe9d8c", kill_on_drop: false }`
[INFO] [stdout] 17b594d9a3f456e8e5b893782c8366ab07694c91e136e84d38f36880ddfe9d8c