[INFO] fetching crate product-os-semaphore 0.0.1... [INFO] testing product-os-semaphore-0.0.1 against 1.91.0 for beta-1.92-2 [INFO] extracting crate product-os-semaphore 0.0.1 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate product-os-semaphore 0.0.1 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 30be58a765e271cf506ba87680b063b0e4f02c2c76453dcc0f54bb8cca38c905 [INFO] running `Command { std: "docker" "start" "-a" "30be58a765e271cf506ba87680b063b0e4f02c2c76453dcc0f54bb8cca38c905", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "30be58a765e271cf506ba87680b063b0e4f02c2c76453dcc0f54bb8cca38c905", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30be58a765e271cf506ba87680b063b0e4f02c2c76453dcc0f54bb8cca38c905", kill_on_drop: false }` [INFO] [stdout] 30be58a765e271cf506ba87680b063b0e4f02c2c76453dcc0f54bb8cca38c905 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d048d346095ce4f7958bfd6de19ef6d6c9a3debf81e2e25d691b23e40b74fb25 [INFO] running `Command { std: "docker" "start" "-a" "d048d346095ce4f7958bfd6de19ef6d6c9a3debf81e2e25d691b23e40b74fb25", 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 0.81s [INFO] running `Command { std: "docker" "inspect" "d048d346095ce4f7958bfd6de19ef6d6c9a3debf81e2e25d691b23e40b74fb25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d048d346095ce4f7958bfd6de19ef6d6c9a3debf81e2e25d691b23e40b74fb25", kill_on_drop: false }` [INFO] [stdout] d048d346095ce4f7958bfd6de19ef6d6c9a3debf81e2e25d691b23e40b74fb25 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5b9b2e333a8ff700d9cd03c4d0b2cc2688f40f724bc553b81be03094bc845844 [INFO] running `Command { std: "docker" "start" "-a" "5b9b2e333a8ff700d9cd03c4d0b2cc2688f40f724bc553b81be03094bc845844", kill_on_drop: false }` [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] 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 `test` profile [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "5b9b2e333a8ff700d9cd03c4d0b2cc2688f40f724bc553b81be03094bc845844", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b9b2e333a8ff700d9cd03c4d0b2cc2688f40f724bc553b81be03094bc845844", kill_on_drop: false }` [INFO] [stdout] 5b9b2e333a8ff700d9cd03c4d0b2cc2688f40f724bc553b81be03094bc845844 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 56a3b6790d93a8ea566e59cd75c4621a3e255a035df0d140b623bf751bac4a9d [INFO] running `Command { std: "docker" "start" "-a" "56a3b6790d93a8ea566e59cd75c4621a3e255a035df0d140b623bf751bac4a9d", 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 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/product_os_semaphore-6fc2628c95b8a9ef) [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 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests product_os_semaphore [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable 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/1.91.0-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-7dcee0b7dbac00ca.rlib --extern no_std_compat=/opt/rustwide/target/debug/deps/libno_std_compat-81fa269271dcdd5c.rlib --extern product_os_semaphore=/opt/rustwide/target/debug/deps/libproduct_os_semaphore-822b8219c731ca10.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" "56a3b6790d93a8ea566e59cd75c4621a3e255a035df0d140b623bf751bac4a9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56a3b6790d93a8ea566e59cd75c4621a3e255a035df0d140b623bf751bac4a9d", kill_on_drop: false }` [INFO] [stdout] 56a3b6790d93a8ea566e59cd75c4621a3e255a035df0d140b623bf751bac4a9d