[INFO] fetching crate rune-alloc 0.14.2...
[INFO] checking rune-alloc-0.14.2 against try#d0ab665d12770dbaae620b539ee4319b83445f45 for pr-133502-24
[INFO] extracting crate rune-alloc 0.14.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rune-alloc 0.14.2
[INFO] finished tweaking crates.io crate rune-alloc 0.14.2
[INFO] tweaked toml for crates.io crate rune-alloc 0.14.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rune-alloc 0.14.2 on toolchain d0ab665d12770dbaae620b539ee4319b83445f45
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d0ab665d12770dbaae620b539ee4319b83445f45" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rune-alloc 0.14.2 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" "+d0ab665d12770dbaae620b539ee4319b83445f45" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e
[INFO] running `Command { std: "docker" "start" "f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e" "/opt/rustwide/cargo-home/bin/cargo" "+d0ab665d12770dbaae620b539ee4319b83445f45" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e" "/opt/rustwide/cargo-home/bin/cargo" "+d0ab665d12770dbaae620b539ee4319b83445f45" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.6
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling rune-alloc-macros v0.14.2
[INFO] [stderr]     Checking tokio v1.49.0
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking rune-alloc v0.14.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/vec/spec_from_elem.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     default fn from_elem<A: Allocator>(elem: T, n: usize, alloc: A) -> Result<Vec<T, A>, Error> {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-07-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/vec/spec_extend.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     default fn spec_extend(&mut self, iterator: I) -> Result<(), Error> {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-07-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/vec/spec_from_elem.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     default fn from_elem<A: Allocator>(elem: T, n: usize, alloc: A) -> Result<Vec<T, A>, Error> {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-07-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/vec/spec_extend.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     default fn spec_extend(&mut self, iterator: I) -> Result<(), Error> {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-07-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.68s
[INFO] running `Command { std: "docker" "inspect" "f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e", kill_on_drop: false }`
[INFO] [stdout] f11b9603b25ee143f37b66e7ee21d9d229d008ad2e6bf8ed1bec5fc76dca712e
