[INFO] fetching crate leak-detect-allocator 0.1.3... [INFO] testing leak-detect-allocator-0.1.3 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate leak-detect-allocator 0.1.3 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate leak-detect-allocator 0.1.3 [INFO] finished tweaking crates.io crate leak-detect-allocator 0.1.3 [INFO] tweaked toml for crates.io crate leak-detect-allocator 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate leak-detect-allocator 0.1.3 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding backtrace v0.3.71 (available: v0.3.75) [INFO] [stderr] Adding heapless v0.5.6 (available: v0.9.1) [INFO] [stderr] Adding spin v0.5.2 (available: v0.10.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 500d8f18b406de96826c920507b55a673c70adbdbad3bd68c022ee8bd17bd22f [INFO] running `Command { std: "docker" "start" "-a" "500d8f18b406de96826c920507b55a673c70adbdbad3bd68c022ee8bd17bd22f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "500d8f18b406de96826c920507b55a673c70adbdbad3bd68c022ee8bd17bd22f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "500d8f18b406de96826c920507b55a673c70adbdbad3bd68c022ee8bd17bd22f", kill_on_drop: false }` [INFO] [stdout] 500d8f18b406de96826c920507b55a673c70adbdbad3bd68c022ee8bd17bd22f [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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 882e7683b6eee2fd963a205120f16d4b5a9fc821da78d3c89af3ae9a20018cdb [INFO] running `Command { std: "docker" "start" "-a" "882e7683b6eee2fd963a205120f16d4b5a9fc821da78d3c89af3ae9a20018cdb", kill_on_drop: false }` [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Compiling gimli v0.28.1 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling heapless v0.5.6 [INFO] [stderr] Compiling object v0.32.2 [INFO] [stderr] Compiling miniz_oxide v0.7.4 [INFO] [stderr] Compiling hash32 v0.1.1 [INFO] [stderr] Compiling addr2line v0.21.0 [INFO] [stderr] Compiling leak-detect-allocator v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_fn)] [INFO] [stdout] | ^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.54.0; see for more information [INFO] [stdout] = note: split into finer-grained feature gates [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `os` [INFO] [stdout] --> src/lib.rs:140:25 [INFO] [stdout] | [INFO] [stdout] 140 | let l = if cfg!(os = "windows") { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(os, values("windows"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(os, values(\"windows\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `new_uninit` has been stable since 1.82.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(new_uninit)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `new_zeroed_alloc` [INFO] [stdout] --> src/lib.rs:74:29 [INFO] [stdout] | [INFO] [stdout] 74 | let alloc_on_heap = Box::::new_zeroed(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #129396 for more information [INFO] [stdout] = help: add `#![feature(new_zeroed_alloc)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `new_zeroed_alloc` [INFO] [stdout] --> src/lib.rs:96:37 [INFO] [stdout] | [INFO] [stdout] 96 | let alloc_on_heap = Box::>::new_zeroed(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #129396 for more information [INFO] [stdout] = help: add `#![feature(new_zeroed_alloc)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0557, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stderr] error: could not compile `leak-detect-allocator` (lib) due to 3 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "882e7683b6eee2fd963a205120f16d4b5a9fc821da78d3c89af3ae9a20018cdb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "882e7683b6eee2fd963a205120f16d4b5a9fc821da78d3c89af3ae9a20018cdb", kill_on_drop: false }` [INFO] [stdout] 882e7683b6eee2fd963a205120f16d4b5a9fc821da78d3c89af3ae9a20018cdb