[INFO] fetching crate oncemutex 0.1.1... [INFO] testing oncemutex-0.1.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate oncemutex 0.1.1 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate oncemutex 0.1.1 [INFO] finished tweaking crates.io crate oncemutex 0.1.1 [INFO] tweaked toml for crates.io crate oncemutex 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate oncemutex 0.1.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 101b55001a152405a357439d8e54f272357f7baf1be086ba8bd258905469b58e [INFO] running `Command { std: "docker" "start" "-a" "101b55001a152405a357439d8e54f272357f7baf1be086ba8bd258905469b58e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "101b55001a152405a357439d8e54f272357f7baf1be086ba8bd258905469b58e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "101b55001a152405a357439d8e54f272357f7baf1be086ba8bd258905469b58e", kill_on_drop: false }` [INFO] [stdout] 101b55001a152405a357439d8e54f272357f7baf1be086ba8bd258905469b58e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 4a73710f0596b1a4fadca5bf8482e8e499329bf4f3d140bb339ad9be4d0b8948 [INFO] running `Command { std: "docker" "start" "-a" "4a73710f0596b1a4fadca5bf8482e8e499329bf4f3d140bb339ad9be4d0b8948", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling oncemutex v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] error: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:63:26 [INFO] [stdout] | [INFO] [stdout] 63 | match self.state.compare_and_swap(UNUSED, LOCKED, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | #![deny(missing_docs, warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:103:33 [INFO] [stdout] | [INFO] [stdout] 103 | if LOCKED == self.state.compare_and_swap(UNUSED, FREE, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: unnecessary `unsafe` block [INFO] [stdout] --> src/lib.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | unsafe { self.data.into_inner() } [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(unused_unsafe)]` implied by `#[deny(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn lock(&self) -> Option> { [INFO] [stdout] | ^^^^^ ----------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(mismatched_lifetime_syntaxes)]` implied by `#[deny(warnings)]` [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 62 | pub fn lock(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-binding let on a synchronization lock [INFO] [stdout] --> src/lib.rs:81:32 [INFO] [stdout] | [INFO] [stdout] 81 | if self.locked() { let _ = self.lock.lock(); } [INFO] [stdout] | ^ this lock is not assigned to a binding and is immediately dropped [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(let_underscore_lock)]` on by default [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 81 | if self.locked() { let _unused = self.lock.lock(); } [INFO] [stdout] | ++++++ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 81 - if self.locked() { let _ = self.lock.lock(); } [INFO] [stdout] 81 + if self.locked() { drop(self.lock.lock()); } [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `oncemutex` (lib) due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "4a73710f0596b1a4fadca5bf8482e8e499329bf4f3d140bb339ad9be4d0b8948", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a73710f0596b1a4fadca5bf8482e8e499329bf4f3d140bb339ad9be4d0b8948", kill_on_drop: false }` [INFO] [stdout] 4a73710f0596b1a4fadca5bf8482e8e499329bf4f3d140bb339ad9be4d0b8948