[INFO] fetching crate jtd-derive-macros 0.1.4... [INFO] testing jtd-derive-macros-0.1.4 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate jtd-derive-macros 0.1.4 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate jtd-derive-macros 0.1.4 [INFO] finished tweaking crates.io crate jtd-derive-macros 0.1.4 [INFO] tweaked toml for crates.io crate jtd-derive-macros 0.1.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate jtd-derive-macros 0.1.4 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 11 packages to latest compatible versions [INFO] [stderr] Adding itertools v0.10.5 (available: v0.14.0) [INFO] [stderr] Adding serde_derive_internals v0.26.0 (available: v0.29.1) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.117) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d101c77b6b2560b4ac1b9b8b515d889bcf0a6e4f50a295bbf90a33a07a591fe9 [INFO] running `Command { std: "docker" "start" "-a" "d101c77b6b2560b4ac1b9b8b515d889bcf0a6e4f50a295bbf90a33a07a591fe9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d101c77b6b2560b4ac1b9b8b515d889bcf0a6e4f50a295bbf90a33a07a591fe9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d101c77b6b2560b4ac1b9b8b515d889bcf0a6e4f50a295bbf90a33a07a591fe9", kill_on_drop: false }` [INFO] [stdout] d101c77b6b2560b4ac1b9b8b515d889bcf0a6e4f50a295bbf90a33a07a591fe9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5202de1137a27978c5f20733b42545da1bdca7c6fcb70b676d20a5d6dcf7096b [INFO] running `Command { std: "docker" "start" "-a" "5202de1137a27978c5f20733b42545da1bdca7c6fcb70b676d20a5d6dcf7096b", kill_on_drop: false }` [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling serde_derive_internals v0.26.0 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling jtd-derive-macros v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] error: this function depends on never type fallback being `()` [INFO] [stdout] --> src/derive/context/container.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn from_input(input: &DeriveInput) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: std::default::Default` will fail [INFO] [stdout] --> src/derive/context/container.rs:204:14 [INFO] [stdout] | [INFO] [stdout] 204 | .collect_fallible()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[deny(dependency_on_unit_never_type_fallback)]` (part of `#[deny(rust_2024_compatibility)]`) on by default [INFO] [stdout] help: use `()` annotations to avoid fallback changes [INFO] [stdout] | [INFO] [stdout] 204 | .collect_fallible::<()>()?; [INFO] [stdout] | ++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this function depends on never type fallback being `()` [INFO] [stdout] --> src/derive/context/field.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn from_input(input: &Field) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: std::default::Default` will fail [INFO] [stdout] --> src/derive/context/field.rs:78:14 [INFO] [stdout] | [INFO] [stdout] 78 | .collect_fallible()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `()` annotations to avoid fallback changes [INFO] [stdout] | [INFO] [stdout] 78 | .collect_fallible::<()>()?; [INFO] [stdout] | ++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `no_serde` is never read [INFO] [stdout] --> src/derive/context/container.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Container { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 12 | pub no_serde: bool, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `jtd-derive-macros` (lib) due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "5202de1137a27978c5f20733b42545da1bdca7c6fcb70b676d20a5d6dcf7096b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5202de1137a27978c5f20733b42545da1bdca7c6fcb70b676d20a5d6dcf7096b", kill_on_drop: false }` [INFO] [stdout] 5202de1137a27978c5f20733b42545da1bdca7c6fcb70b676d20a5d6dcf7096b