[INFO] fetching crate product-os-semaphore 0.0.1... [INFO] testing product-os-semaphore-0.0.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate product-os-semaphore 0.0.1 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate product-os-semaphore 0.0.1 [INFO] finished tweaking crates.io crate product-os-semaphore 0.0.1 [INFO] tweaked toml for crates.io crate product-os-semaphore 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate product-os-semaphore 0.0.1 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 3 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e947fcbece27c31361fcb01ff0a8fad4c527904217ad414f3cc6f537e536931b [INFO] running `Command { std: "docker" "start" "-a" "e947fcbece27c31361fcb01ff0a8fad4c527904217ad414f3cc6f537e536931b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e947fcbece27c31361fcb01ff0a8fad4c527904217ad414f3cc6f537e536931b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e947fcbece27c31361fcb01ff0a8fad4c527904217ad414f3cc6f537e536931b", kill_on_drop: false }` [INFO] [stdout] e947fcbece27c31361fcb01ff0a8fad4c527904217ad414f3cc6f537e536931b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 653750a1eae5a0a449ff3cfbb057b0b031f05d164f244488f54e639e96e0d932 [INFO] running `Command { std: "docker" "start" "-a" "653750a1eae5a0a449ff3cfbb057b0b031f05d164f244488f54e639e96e0d932", kill_on_drop: false }` [INFO] [stderr] Compiling core-error v0.0.1-rc4 [INFO] [stderr] Compiling no-std-compat v0.4.1 [INFO] [stderr] Compiling product-os-semaphore v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/raw.rs:75:20 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn try_get(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 75 | pub fn try_get(&self) -> Result, crate::SemaphoreError> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.94s [INFO] running `Command { std: "docker" "inspect" "653750a1eae5a0a449ff3cfbb057b0b031f05d164f244488f54e639e96e0d932", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "653750a1eae5a0a449ff3cfbb057b0b031f05d164f244488f54e639e96e0d932", kill_on_drop: false }` [INFO] [stdout] 653750a1eae5a0a449ff3cfbb057b0b031f05d164f244488f54e639e96e0d932 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9a274fe7bd07535dfe9289f33a1d8d394d5714bfbaaaa73a2736852ae6873c7 [INFO] running `Command { std: "docker" "start" "-a" "c9a274fe7bd07535dfe9289f33a1d8d394d5714bfbaaaa73a2736852ae6873c7", kill_on_drop: false }` [INFO] [stderr] Compiling product-os-semaphore v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/raw.rs:75:20 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn try_get(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 75 | pub fn try_get(&self) -> Result, crate::SemaphoreError> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/raw.rs:75:20 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn try_get(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 75 | pub fn try_get(&self) -> Result, crate::SemaphoreError> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s [INFO] running `Command { std: "docker" "inspect" "c9a274fe7bd07535dfe9289f33a1d8d394d5714bfbaaaa73a2736852ae6873c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9a274fe7bd07535dfe9289f33a1d8d394d5714bfbaaaa73a2736852ae6873c7", kill_on_drop: false }` [INFO] [stdout] c9a274fe7bd07535dfe9289f33a1d8d394d5714bfbaaaa73a2736852ae6873c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] db79cd53ac05544405f55feb1431879bf6b1d6cdc52ab61ad3f52906793e5c84 [INFO] running `Command { std: "docker" "start" "-a" "db79cd53ac05544405f55feb1431879bf6b1d6cdc52ab61ad3f52906793e5c84", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/raw.rs:75:20 [INFO] [stderr] | [INFO] [stderr] 75 | pub fn try_get(&self) -> Result { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 75 | pub fn try_get(&self) -> Result, crate::SemaphoreError> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `product-os-semaphore` (lib) generated 1 warning (run `cargo fix --lib -p product-os-semaphore` to apply 1 suggestion) [INFO] [stderr] warning: `product-os-semaphore` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/product_os_semaphore-cd9c48bec00cc69b) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test raw::tests::test_maximum_count_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] Doc-tests product_os_semaphore [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:1:44 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(any(feature = "nightly", doc), feature(negative_impls))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 1 previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --color auto --crate-name product_os_semaphore --test src/lib.rs --test-run-directory /opt/rustwide/workdir -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern core_error=/opt/rustwide/target/debug/deps/libcore_error-fb8754d6ef0954a2.rlib --extern no_std_compat=/opt/rustwide/target/debug/deps/libno_std_compat-e02fd359a07f5990.rlib --extern product_os_semaphore=/opt/rustwide/target/debug/deps/libproduct_os_semaphore-9de1f063c0c710d9.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "nightly", "std", "wrapper"))' --cap-lints=warn --error-format human` (exit status: 1) [INFO] [stderr] note: test exited abnormally; to see the full output pass --no-capture to the harness. [INFO] running `Command { std: "docker" "inspect" "db79cd53ac05544405f55feb1431879bf6b1d6cdc52ab61ad3f52906793e5c84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db79cd53ac05544405f55feb1431879bf6b1d6cdc52ab61ad3f52906793e5c84", kill_on_drop: false }` [INFO] [stdout] db79cd53ac05544405f55feb1431879bf6b1d6cdc52ab61ad3f52906793e5c84