[INFO] fetching crate grandeur 0.1.0... [INFO] testing grandeur-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] extracting crate grandeur 0.1.0 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate grandeur 0.1.0 [INFO] finished tweaking crates.io crate grandeur 0.1.0 [INFO] tweaked toml for crates.io crate grandeur 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate grandeur 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 16 packages to latest compatible versions [INFO] [stderr] Adding hashbrown v0.13.2 (available: v0.16.0) [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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getrandom v0.3.4 [INFO] [stderr] Downloaded cfg-if v1.0.4 [INFO] [stderr] Downloaded quote v1.0.42 [INFO] [stderr] Downloaded wit-bindgen v0.46.0 [INFO] [stderr] Downloaded unicode-ident v1.0.22 [INFO] [stderr] Downloaded ahash v0.8.12 [INFO] [stderr] Downloaded zerocopy-derive v0.8.27 [INFO] [stderr] Downloaded proc-macro2 v1.0.103 [INFO] [stderr] Downloaded hashbrown v0.13.2 [INFO] [stderr] Downloaded wasip2 v1.0.1+wasi-0.2.4 [INFO] [stderr] Downloaded zerocopy v0.8.27 [INFO] [stderr] Downloaded syn v2.0.110 [INFO] [stderr] Downloaded libc v0.2.177 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] bfd040891a490b196b7152ef29e44103368930940b17d8956c4a33c651f2583f [INFO] running `Command { std: "docker" "start" "-a" "bfd040891a490b196b7152ef29e44103368930940b17d8956c4a33c651f2583f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bfd040891a490b196b7152ef29e44103368930940b17d8956c4a33c651f2583f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfd040891a490b196b7152ef29e44103368930940b17d8956c4a33c651f2583f", kill_on_drop: false }` [INFO] [stdout] bfd040891a490b196b7152ef29e44103368930940b17d8956c4a33c651f2583f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e037cd40fc9e634b43befab0dbfa6c0f2a9fad3bbf3d22fc1e02e46dbe5a3e95 [INFO] running `Command { std: "docker" "start" "-a" "e037cd40fc9e634b43befab0dbfa6c0f2a9fad3bbf3d22fc1e02e46dbe5a3e95", kill_on_drop: false }` [INFO] [stderr] Compiling once_cell v1.21.3 [INFO] [stderr] Compiling ahash v0.8.12 [INFO] [stderr] Compiling hashbrown v0.13.2 [INFO] [stderr] Compiling grandeur v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/node.rs:64:30 [INFO] [stdout] | [INFO] [stdout] 64 | self.try_map::<_, _, !>(|d| Ok(f(d))).unwrap() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` 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]: the `!` type is experimental [INFO] [stdout] --> src/node.rs:128:36 [INFO] [stdout] | [INFO] [stdout] 128 | self.try_visit_map::<_, _, !>(|e| Ok(f(e))).unwrap() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` 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]: the `!` type is experimental [INFO] [stdout] --> src/node.rs:149:41 [INFO] [stdout] | [INFO] [stdout] 149 | self.try_visit_apply::<_, _, _, !>(other, |a, b| Ok(f(a, b))) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` 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]: the `!` type is experimental [INFO] [stdout] --> src/node.rs:219:40 [INFO] [stdout] | [INFO] [stdout] 219 | self.try_apply_prod::<_, _, _, !>(other, |a, b| Ok(f(a, b))) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` 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] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `grandeur` (lib) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "e037cd40fc9e634b43befab0dbfa6c0f2a9fad3bbf3d22fc1e02e46dbe5a3e95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e037cd40fc9e634b43befab0dbfa6c0f2a9fad3bbf3d22fc1e02e46dbe5a3e95", kill_on_drop: false }` [INFO] [stdout] e037cd40fc9e634b43befab0dbfa6c0f2a9fad3bbf3d22fc1e02e46dbe5a3e95