[INFO] fetching crate tangle 0.4.0... [INFO] testing tangle-0.4.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate tangle 0.4.0 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate tangle 0.4.0 [INFO] finished tweaking crates.io crate tangle 0.4.0 [INFO] tweaked toml for crates.io crate tangle 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tangle 0.4.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 6 packages to latest compatible versions [INFO] [stderr] Adding lazy_static v0.1.16 (available: v1.5.0) [INFO] [stderr] Adding num_cpus v0.2.13 (available: v1.17.0) [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9a23458f0ea394befbb2f7129461e8686163630d9b442397b673cc7914728c4e [INFO] running `Command { std: "docker" "start" "-a" "9a23458f0ea394befbb2f7129461e8686163630d9b442397b673cc7914728c4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9a23458f0ea394befbb2f7129461e8686163630d9b442397b673cc7914728c4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a23458f0ea394befbb2f7129461e8686163630d9b442397b673cc7914728c4e", kill_on_drop: false }` [INFO] [stdout] 9a23458f0ea394befbb2f7129461e8686163630d9b442397b673cc7914728c4e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2bda6994f8b72154af196e4fa0120b6b0c81d53dd25b0543ef1ed071aac6331b [INFO] running `Command { std: "docker" "start" "-a" "2bda6994f8b72154af196e4fa0120b6b0c81d53dd25b0543ef1ed071aac6331b", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling threadpool v1.8.1 [INFO] [stderr] Compiling num_cpus v0.2.13 [INFO] [stderr] Compiling lazy_static v0.1.16 [INFO] [stderr] Compiling tangle v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::convert; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: defaults for generic parameters are not allowed here [INFO] [stdout] --> src/lib.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | impl Future [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #36887 [INFO] [stdout] = note: `#[warn(invalid_type_param_default)]` (part of `#[warn(future_incompatible)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cont` [INFO] [stdout] --> src/lib.rs:46:29 [INFO] [stdout] | [INFO] [stdout] 46 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cont` [INFO] [stdout] --> src/lib.rs:54:29 [INFO] [stdout] | [INFO] [stdout] 54 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `chan` and `state` are never read [INFO] [stdout] --> src/lib.rs:136:5 [INFO] [stdout] | [INFO] [stdout] 135 | pub struct Promise { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 136 | chan: Sender>, [INFO] [stdout] | ^^^^ [INFO] [stdout] 137 | rx: Option>>, [INFO] [stdout] 138 | state: PromiseState [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Promise` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `read` is never read [INFO] [stdout] --> src/lib.rs:175:5 [INFO] [stdout] | [INFO] [stdout] 173 | pub struct Future { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 174 | receiver: Receiver>, [INFO] [stdout] 175 | read: bool [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Future` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:192:48 [INFO] [stdout] | [INFO] [stdout] 192 | POOL.lock().unwrap().execute(move || { tx.send(f()); }); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 192 | POOL.lock().unwrap().execute(move || { let _ = tx.send(f()); }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:274:30 [INFO] [stdout] | [INFO] [stdout] 274 | Ok(val) => { tx.send(f(val)); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 274 | Ok(val) => { let _ = tx.send(f(val)); }, [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:275:31 [INFO] [stdout] | [INFO] [stdout] 275 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 275 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:305:30 [INFO] [stdout] | [INFO] [stdout] 305 | Ok(val) => { tx.send(Async::Ok(f(val))); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 305 | Ok(val) => { let _ = tx.send(Async::Ok(f(val))); }, [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:306:31 [INFO] [stdout] | [INFO] [stdout] 306 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 306 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:338:9 [INFO] [stdout] | [INFO] [stdout] 338 | tx.send(Async::Ok(val)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 338 | let _ = tx.send(Async::Ok(val)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:354:9 [INFO] [stdout] | [INFO] [stdout] 354 | tx.send(Async::Err(err)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 354 | let _ = tx.send(Async::Err(err)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: tangle v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "2bda6994f8b72154af196e4fa0120b6b0c81d53dd25b0543ef1ed071aac6331b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bda6994f8b72154af196e4fa0120b6b0c81d53dd25b0543ef1ed071aac6331b", kill_on_drop: false }` [INFO] [stdout] 2bda6994f8b72154af196e4fa0120b6b0c81d53dd25b0543ef1ed071aac6331b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5c1ccdfd438cdefccce6723b3935790d119daae58a70885d56f0f8fc1789fbab [INFO] running `Command { std: "docker" "start" "-a" "5c1ccdfd438cdefccce6723b3935790d119daae58a70885d56f0f8fc1789fbab", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::convert; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tangle v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: defaults for generic parameters are not allowed here [INFO] [stdout] --> src/lib.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | impl Future [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #36887 [INFO] [stdout] = note: `#[warn(invalid_type_param_default)]` (part of `#[warn(future_incompatible)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cont` [INFO] [stdout] --> src/lib.rs:46:29 [INFO] [stdout] | [INFO] [stdout] 46 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cont` [INFO] [stdout] --> src/lib.rs:54:29 [INFO] [stdout] | [INFO] [stdout] 54 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `chan` and `state` are never read [INFO] [stdout] --> src/lib.rs:136:5 [INFO] [stdout] | [INFO] [stdout] 135 | pub struct Promise { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 136 | chan: Sender>, [INFO] [stdout] | ^^^^ [INFO] [stdout] 137 | rx: Option>>, [INFO] [stdout] 138 | state: PromiseState [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Promise` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `read` is never read [INFO] [stdout] --> src/lib.rs:175:5 [INFO] [stdout] | [INFO] [stdout] 173 | pub struct Future { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 174 | receiver: Receiver>, [INFO] [stdout] 175 | read: bool [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Future` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:192:48 [INFO] [stdout] | [INFO] [stdout] 192 | POOL.lock().unwrap().execute(move || { tx.send(f()); }); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 192 | POOL.lock().unwrap().execute(move || { let _ = tx.send(f()); }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:274:30 [INFO] [stdout] | [INFO] [stdout] 274 | Ok(val) => { tx.send(f(val)); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 274 | Ok(val) => { let _ = tx.send(f(val)); }, [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:275:31 [INFO] [stdout] | [INFO] [stdout] 275 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 275 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:305:30 [INFO] [stdout] | [INFO] [stdout] 305 | Ok(val) => { tx.send(Async::Ok(f(val))); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 305 | Ok(val) => { let _ = tx.send(Async::Ok(f(val))); }, [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:306:31 [INFO] [stdout] | [INFO] [stdout] 306 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 306 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:338:9 [INFO] [stdout] | [INFO] [stdout] 338 | tx.send(Async::Ok(val)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 338 | let _ = tx.send(Async::Ok(val)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:354:9 [INFO] [stdout] | [INFO] [stdout] 354 | tx.send(Async::Err(err)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 354 | let _ = tx.send(Async::Err(err)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::convert; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Receiver` and `Sender` [INFO] [stdout] --> src/lib.rs:368:36 [INFO] [stdout] | [INFO] [stdout] 368 | use std::sync::mpsc::{channel, Receiver, Sender}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / lazy_static! { [INFO] [stdout] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stdout] 23 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: defaults for generic parameters are not allowed here [INFO] [stdout] --> src/lib.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | impl Future [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #36887 [INFO] [stdout] = note: `#[warn(invalid_type_param_default)]` (part of `#[warn(future_incompatible)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cont` [INFO] [stdout] --> src/lib.rs:46:29 [INFO] [stdout] | [INFO] [stdout] 46 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cont` [INFO] [stdout] --> src/lib.rs:54:29 [INFO] [stdout] | [INFO] [stdout] 54 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/lib.rs:386:17 [INFO] [stdout] | [INFO] [stdout] 386 | let v = async!(v); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lib.rs:429:17 [INFO] [stdout] | [INFO] [stdout] 429 | Err(err) => panic!("Unexpected case.") [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lib.rs:478:17 [INFO] [stdout] | [INFO] [stdout] 478 | Err(err) => panic!("Unexpected value") [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lib.rs:488:17 [INFO] [stdout] | [INFO] [stdout] 488 | Err(err) => panic!("Unexpected value") [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lib.rs:504:17 [INFO] [stdout] | [INFO] [stdout] 504 | Err(err) => panic!("Unexpected value") [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/lib.rs:496:51 [INFO] [stdout] | [INFO] [stdout] 496 | let curr: Future = count.and_then(|n| { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `chan` and `state` are never read [INFO] [stdout] --> src/lib.rs:136:5 [INFO] [stdout] | [INFO] [stdout] 135 | pub struct Promise { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 136 | chan: Sender>, [INFO] [stdout] | ^^^^ [INFO] [stdout] 137 | rx: Option>>, [INFO] [stdout] 138 | state: PromiseState [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Promise` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `read` is never read [INFO] [stdout] --> src/lib.rs:175:5 [INFO] [stdout] | [INFO] [stdout] 173 | pub struct Future { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 174 | receiver: Receiver>, [INFO] [stdout] 175 | read: bool [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Future` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:192:48 [INFO] [stdout] | [INFO] [stdout] 192 | POOL.lock().unwrap().execute(move || { tx.send(f()); }); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 192 | POOL.lock().unwrap().execute(move || { let _ = tx.send(f()); }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:274:30 [INFO] [stdout] | [INFO] [stdout] 274 | Ok(val) => { tx.send(f(val)); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 274 | Ok(val) => { let _ = tx.send(f(val)); }, [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:275:31 [INFO] [stdout] | [INFO] [stdout] 275 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 275 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:305:30 [INFO] [stdout] | [INFO] [stdout] 305 | Ok(val) => { tx.send(Async::Ok(f(val))); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 305 | Ok(val) => { let _ = tx.send(Async::Ok(f(val))); }, [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:306:31 [INFO] [stdout] | [INFO] [stdout] 306 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 306 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:338:9 [INFO] [stdout] | [INFO] [stdout] 338 | tx.send(Async::Ok(val)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 338 | let _ = tx.send(Async::Ok(val)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:354:9 [INFO] [stdout] | [INFO] [stdout] 354 | tx.send(Async::Err(err)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 354 | let _ = tx.send(Async::Err(err)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:425:9 [INFO] [stdout] | [INFO] [stdout] 425 | tx.send(123); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 425 | let _ = tx.send(123); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:447:9 [INFO] [stdout] | [INFO] [stdout] 447 | tx.send(555); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 447 | let _ = tx.send(555); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.29s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: tangle v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "5c1ccdfd438cdefccce6723b3935790d119daae58a70885d56f0f8fc1789fbab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c1ccdfd438cdefccce6723b3935790d119daae58a70885d56f0f8fc1789fbab", kill_on_drop: false }` [INFO] [stdout] 5c1ccdfd438cdefccce6723b3935790d119daae58a70885d56f0f8fc1789fbab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fb3cc0e3ae580f410bd01873d087e7f13fc388da0f739723f46d73df3c0f94f4 [INFO] running `Command { std: "docker" "start" "-a" "fb3cc0e3ae580f410bd01873d087e7f13fc388da0f739723f46d73df3c0f94f4", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/lib.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert` [INFO] [stderr] --> src/lib.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::convert; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition value: `nightly` [INFO] [stderr] --> src/lib.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | / lazy_static! { [INFO] [stderr] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stderr] 23 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: no expected values for `feature` [INFO] [stderr] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stderr] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stderr] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stderr] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition value: `nightly` [INFO] [stderr] --> src/lib.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | / lazy_static! { [INFO] [stderr] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stderr] 23 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: no expected values for `feature` [INFO] [stderr] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stderr] = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg [INFO] [stderr] = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stderr] --> src/lib.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | / lazy_static! { [INFO] [stderr] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stderr] 23 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stderr] --> src/lib.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | / lazy_static! { [INFO] [stderr] 22 | | static ref POOL: Mutex = Mutex::new(ThreadPool::new(num_cpus::get())); [INFO] [stderr] 23 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: defaults for generic parameters are not allowed here [INFO] [stderr] --> src/lib.rs:178:9 [INFO] [stderr] | [INFO] [stderr] 178 | impl Future [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #36887 [INFO] [stderr] = note: `#[warn(invalid_type_param_default)]` (part of `#[warn(future_incompatible)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cont` [INFO] [stderr] --> src/lib.rs:46:29 [INFO] [stderr] | [INFO] [stderr] 46 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cont` [INFO] [stderr] --> src/lib.rs:54:29 [INFO] [stderr] | [INFO] [stderr] 54 | Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.") [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cont` [INFO] [stderr] [INFO] [stderr] warning: fields `chan` and `state` are never read [INFO] [stderr] --> src/lib.rs:136:5 [INFO] [stderr] | [INFO] [stderr] 135 | pub struct Promise { [INFO] [stderr] | ------- fields in this struct [INFO] [stderr] 136 | chan: Sender>, [INFO] [stderr] | ^^^^ [INFO] [stderr] 137 | rx: Option>>, [INFO] [stderr] 138 | state: PromiseState [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Promise` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: field `read` is never read [INFO] [stderr] --> src/lib.rs:175:5 [INFO] [stderr] | [INFO] [stderr] 173 | pub struct Future { [INFO] [stderr] | ------ field in this struct [INFO] [stderr] 174 | receiver: Receiver>, [INFO] [stderr] 175 | read: bool [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Future` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:192:48 [INFO] [stderr] | [INFO] [stderr] 192 | POOL.lock().unwrap().execute(move || { tx.send(f()); }); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 192 | POOL.lock().unwrap().execute(move || { let _ = tx.send(f()); }); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:274:30 [INFO] [stderr] | [INFO] [stderr] 274 | Ok(val) => { tx.send(f(val)); }, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 274 | Ok(val) => { let _ = tx.send(f(val)); }, [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:275:31 [INFO] [stderr] | [INFO] [stderr] 275 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 275 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:305:30 [INFO] [stderr] | [INFO] [stderr] 305 | Ok(val) => { tx.send(Async::Ok(f(val))); }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 305 | Ok(val) => { let _ = tx.send(Async::Ok(f(val))); }, [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:306:31 [INFO] [stderr] | [INFO] [stderr] 306 | Err(err) => { tx.send(Async::Err(err)); } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 306 | Err(err) => { let _ = tx.send(Async::Err(err)); } [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:338:9 [INFO] [stderr] | [INFO] [stderr] 338 | tx.send(Async::Ok(val)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 338 | let _ = tx.send(Async::Ok(val)); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:354:9 [INFO] [stderr] | [INFO] [stderr] 354 | tx.send(Async::Err(err)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 354 | let _ = tx.send(Async::Err(err)); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Receiver` and `Sender` [INFO] [stderr] --> src/lib.rs:368:36 [INFO] [stderr] | [INFO] [stderr] 368 | use std::sync::mpsc::{channel, Receiver, Sender}; [INFO] [stderr] | ^^^^^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/lib.rs:386:17 [INFO] [stderr] | [INFO] [stderr] 386 | let v = async!(v); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/lib.rs:429:17 [INFO] [stderr] | [INFO] [stderr] 429 | Err(err) => panic!("Unexpected case.") [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/lib.rs:478:17 [INFO] [stderr] | [INFO] [stderr] 478 | Err(err) => panic!("Unexpected value") [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/lib.rs:488:17 [INFO] [stderr] | [INFO] [stderr] 488 | Err(err) => panic!("Unexpected value") [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/lib.rs:504:17 [INFO] [stderr] | [INFO] [stderr] 504 | Err(err) => panic!("Unexpected value") [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/lib.rs:496:51 [INFO] [stderr] | [INFO] [stderr] 496 | let curr: Future = count.and_then(|n| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:425:9 [INFO] [stderr] | [INFO] [stderr] 425 | tx.send(123); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 425 | let _ = tx.send(123); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:447:9 [INFO] [stderr] | [INFO] [stderr] 447 | tx.send(555); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 447 | let _ = tx.send(555); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `tangle` (lib) generated 18 warnings (run `cargo fix --lib -p tangle` to apply 2 suggestions) [INFO] [stderr] warning: `tangle` (lib test) generated 27 warnings (18 duplicates) (run `cargo fix --lib -p tangle --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: tangle v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tangle-2b065299d0bd50c4) [INFO] [stdout] [INFO] [stdout] running 11 tests [INFO] [stdout] test tests::async_macro ... ok [INFO] [stdout] test tests::async_macro_err ... ok [INFO] [stdout] test tests::async_map ... ok [INFO] [stdout] test tests::async_map_err ... ok [INFO] [stdout] test tests::resolve_from_value ... ok [INFO] [stdout] test tests::to_future_macro ... ok [INFO] [stdout] test tests::from_chan1 ... ok [INFO] [stdout] test tests::create_channel ... ok [INFO] [stdout] test tests::map_promise ... ok [INFO] [stdout] test tests::async_map_fail - should panic ... ok [INFO] [stdout] test tests::test_async ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s [INFO] [stdout] [INFO] [stderr] Doc-tests tangle [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test src/lib.rs - Promise::new (line 145) ... ok [INFO] [stdout] test src/lib.rs - Future::unit (line 330) ... ok [INFO] [stdout] test src/lib.rs - Future::from_channel (line 226) ... ok [INFO] [stdout] test src/lib.rs - Future::map (line 285) ... ok [INFO] [stdout] test src/lib.rs - Future::err (line 346) ... ok [INFO] [stdout] test src/lib.rs - Future::new (line 182) ... ok [INFO] [stdout] test src/lib.rs - Future::and_then (line 254) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.40s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fb3cc0e3ae580f410bd01873d087e7f13fc388da0f739723f46d73df3c0f94f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb3cc0e3ae580f410bd01873d087e7f13fc388da0f739723f46d73df3c0f94f4", kill_on_drop: false }` [INFO] [stdout] fb3cc0e3ae580f410bd01873d087e7f13fc388da0f739723f46d73df3c0f94f4