[INFO] fetching crate lockable 0.2.0... [INFO] checking lockable-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate lockable 0.2.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate lockable 0.2.0 [INFO] finished tweaking crates.io crate lockable 0.2.0 [INFO] tweaked toml for crates.io crate lockable 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lockable 0.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate lockable 0.2.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 570173f13e65a96789e42fab504e85048e5ef1bf6f4ed0a9f209ec7d7d723e27 [INFO] running `Command { std: "docker" "start" "-a" "570173f13e65a96789e42fab504e85048e5ef1bf6f4ed0a9f209ec7d7d723e27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "570173f13e65a96789e42fab504e85048e5ef1bf6f4ed0a9f209ec7d7d723e27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "570173f13e65a96789e42fab504e85048e5ef1bf6f4ed0a9f209ec7d7d723e27", kill_on_drop: false }` [INFO] [stdout] 570173f13e65a96789e42fab504e85048e5ef1bf6f4ed0a9f209ec7d7d723e27 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c55cb66f5777741486b0fd1890a2b29948dd7a3033458cddd8700b0e6c886e14 [INFO] running `Command { std: "docker" "start" "-a" "c55cb66f5777741486b0fd1890a2b29948dd7a3033458cddd8700b0e6c886e14", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Checking clap_builder v4.5.39 [INFO] [stderr] Checking hashbrown v0.15.4 [INFO] [stderr] Checking itertools v0.14.0 [INFO] [stderr] Checking lru v0.14.0 [INFO] [stderr] Checking clap v4.5.39 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling derive_more-impl v2.0.1 [INFO] [stderr] Checking tokio v1.45.1 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking derive_more v2.0.1 [INFO] [stderr] Checking serde v1.0.219 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking lockable v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lockable_hash_map.rs:36:27 [INFO] [stdout] | [INFO] [stdout] 36 | fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult> { [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] 36 | fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult<'_, Entry> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lockable_lru_cache.rs:41:27 [INFO] [stdout] | [INFO] [stdout] 41 | fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult> { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 41 | fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult<'_, Entry> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>, Never> [INFO] [stdout] --> src/lockpool.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | / self.map [INFO] [stdout] 178 | | .blocking_lock(key, SyncLimit::no_limit()) [INFO] [stdout] | |______________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mustuse_in_always_ok)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result>>, Never> [INFO] [stdout] --> src/lockpool.rs:249:9 [INFO] [stdout] | [INFO] [stdout] 249 | / self.map [INFO] [stdout] 250 | | .try_lock(key, SyncLimit::no_limit()) [INFO] [stdout] | |_________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>, Never> [INFO] [stdout] --> src/lockpool.rs:321:9 [INFO] [stdout] | [INFO] [stdout] 321 | / self.map [INFO] [stdout] 322 | | .async_lock(key, AsyncLimit::no_limit()) [INFO] [stdout] 323 | | .await [INFO] [stdout] | |__________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>, Never> [INFO] [stdout] --> src/lockpool.rs:323:14 [INFO] [stdout] | [INFO] [stdout] 323 | .await [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>, Never> [INFO] [stdout] --> src/lockpool.rs:321:9 [INFO] [stdout] | [INFO] [stdout] 321 | / self.map [INFO] [stdout] 322 | | .async_lock(key, AsyncLimit::no_limit()) [INFO] [stdout] 323 | | .await [INFO] [stdout] | |__________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lockable` (lib) due to 1 previous error; 6 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c55cb66f5777741486b0fd1890a2b29948dd7a3033458cddd8700b0e6c886e14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c55cb66f5777741486b0fd1890a2b29948dd7a3033458cddd8700b0e6c886e14", kill_on_drop: false }` [INFO] [stdout] c55cb66f5777741486b0fd1890a2b29948dd7a3033458cddd8700b0e6c886e14