[INFO] fetching crate grandeur 0.1.0...
[INFO] checking grandeur-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate grandeur 0.1.0 into /workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grandeur 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b379a167109d1c1cb39e0b5e55d44d0c0d832c1af147d0100221faaf08954270
[INFO] running `Command { std: "docker" "start" "-a" "b379a167109d1c1cb39e0b5e55d44d0c0d832c1af147d0100221faaf08954270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b379a167109d1c1cb39e0b5e55d44d0c0d832c1af147d0100221faaf08954270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b379a167109d1c1cb39e0b5e55d44d0c0d832c1af147d0100221faaf08954270", kill_on_drop: false }`
[INFO] [stdout] b379a167109d1c1cb39e0b5e55d44d0c0d832c1af147d0100221faaf08954270
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d429eb153a8237b79712b209cdd8fa1286edc127e98809973e4e4f8b04f9c383
[INFO] running `Command { std: "docker" "start" "-a" "d429eb153a8237b79712b209cdd8fa1286edc127e98809973e4e4f8b04f9c383", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]     Checking 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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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: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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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 <https://github.com/rust-lang/rust/issues/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 2025-08-19; 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 test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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" "d429eb153a8237b79712b209cdd8fa1286edc127e98809973e4e4f8b04f9c383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d429eb153a8237b79712b209cdd8fa1286edc127e98809973e4e4f8b04f9c383", kill_on_drop: false }`
[INFO] [stdout] d429eb153a8237b79712b209cdd8fa1286edc127e98809973e4e4f8b04f9c383