[INFO] fetching crate grandeur 0.1.0...
[INFO] checking grandeur-0.1.0 against master#cf79d034aa3d8f396d407aafce6f1ccd818e710e for pr-155657
[INFO] extracting crate grandeur 0.1.0 into /workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate grandeur 0.1.0 on toolchain cf79d034aa3d8f396d407aafce6f1ccd818e710e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "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" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "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: v0.17.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4620f716ce567326fe10f4d22bfab11a14b3b4a0b706eb713eb6235ccfd30c3b
[INFO] running `Command { std: "docker" "start" "-a" "4620f716ce567326fe10f4d22bfab11a14b3b4a0b706eb713eb6235ccfd30c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4620f716ce567326fe10f4d22bfab11a14b3b4a0b706eb713eb6235ccfd30c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4620f716ce567326fe10f4d22bfab11a14b3b4a0b706eb713eb6235ccfd30c3b", kill_on_drop: false }`
[INFO] [stdout] 4620f716ce567326fe10f4d22bfab11a14b3b4a0b706eb713eb6235ccfd30c3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f79732ee35ed99c24acc1a814c5c4076267a95bca0048816b021034d01b3777
[INFO] running `Command { std: "docker" "start" "-a" "1f79732ee35ed99c24acc1a814c5c4076267a95bca0048816b021034d01b3777", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.3.4
[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 2026-04-24; 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 2026-04-24; 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 2026-04-24; 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 2026-04-24; 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 2026-04-24; 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 2026-04-24; 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 2026-04-24; 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 2026-04-24; 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" "1f79732ee35ed99c24acc1a814c5c4076267a95bca0048816b021034d01b3777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f79732ee35ed99c24acc1a814c5c4076267a95bca0048816b021034d01b3777", kill_on_drop: false }`
[INFO] [stdout] 1f79732ee35ed99c24acc1a814c5c4076267a95bca0048816b021034d01b3777
