[INFO] fetching crate desaturate 0.0.4... [INFO] testing desaturate-0.0.4 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate desaturate 0.0.4 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate desaturate 0.0.4 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate desaturate 0.0.4 [INFO] tweaked toml for crates.io crate desaturate 0.0.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate desaturate 0.0.4 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate desaturate 0.0.4 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded desaturate-macros v0.0.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1f78987bc6fd88edbe0640a4bf96e30daa6d370df3ca66f42985c67bb9c2ff71 [INFO] running `Command { std: "docker" "start" "-a" "1f78987bc6fd88edbe0640a4bf96e30daa6d370df3ca66f42985c67bb9c2ff71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1f78987bc6fd88edbe0640a4bf96e30daa6d370df3ca66f42985c67bb9c2ff71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f78987bc6fd88edbe0640a4bf96e30daa6d370df3ca66f42985c67bb9c2ff71", kill_on_drop: false }` [INFO] [stdout] 1f78987bc6fd88edbe0640a4bf96e30daa6d370df3ca66f42985c67bb9c2ff71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4ac01bb3aa9d5d913b12695b876990a0cfc2aaf63912041456e3576ced7e563e [INFO] running `Command { std: "docker" "start" "-a" "4ac01bb3aa9d5d913b12695b876990a0cfc2aaf63912041456e3576ced7e563e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.49 [INFO] [stderr] Compiling desaturate-macros v0.0.3 [INFO] [stderr] Compiling desaturate v0.0.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.50s [INFO] running `Command { std: "docker" "inspect" "4ac01bb3aa9d5d913b12695b876990a0cfc2aaf63912041456e3576ced7e563e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ac01bb3aa9d5d913b12695b876990a0cfc2aaf63912041456e3576ced7e563e", kill_on_drop: false }` [INFO] [stdout] 4ac01bb3aa9d5d913b12695b876990a0cfc2aaf63912041456e3576ced7e563e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 491b589c6a17bb6943633b40a464eeecae9286c76b9dbcd9040293f6179f889b [INFO] running `Command { std: "docker" "start" "-a" "491b589c6a17bb6943633b40a464eeecae9286c76b9dbcd9040293f6179f889b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling pin-project-lite v0.2.13 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling tokio v1.36.0 [INFO] [stderr] Compiling desaturate v0.0.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/lib.rs:366:76 [INFO] [stdout] | [INFO] [stdout] 366 | fn do_stuff_with_pointer<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stdout] | -- the lifetime is named here ^^ the same 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: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 366 - fn do_stuff_with_pointer<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stdout] 366 + fn do_stuff_with_pointer<'a>(with: &'a i32) -> impl Desaturated + 'a { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/lib.rs:371:94 [INFO] [stdout] | [INFO] [stdout] 371 | fn do_stuff_with_pointer_in_inner_function<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stdout] | -- the lifetime is named here ^^ the same 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: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 371 - fn do_stuff_with_pointer_in_inner_function<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stdout] 371 + fn do_stuff_with_pointer_in_inner_function<'a>(with: &'a i32) -> impl Desaturated + 'a { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.08s [INFO] running `Command { std: "docker" "inspect" "491b589c6a17bb6943633b40a464eeecae9286c76b9dbcd9040293f6179f889b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "491b589c6a17bb6943633b40a464eeecae9286c76b9dbcd9040293f6179f889b", kill_on_drop: false }` [INFO] [stdout] 491b589c6a17bb6943633b40a464eeecae9286c76b9dbcd9040293f6179f889b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] abedce77cd763d86bf826ad1247bffb92dd5762868794f4b76af694d4751386b [INFO] running `Command { std: "docker" "start" "-a" "abedce77cd763d86bf826ad1247bffb92dd5762868794f4b76af694d4751386b", kill_on_drop: false }` [INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stderr] --> src/lib.rs:366:76 [INFO] [stderr] | [INFO] [stderr] 366 | fn do_stuff_with_pointer<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stderr] | -- the lifetime is named here ^^ the same 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: consistently use `'a` [INFO] [stderr] | [INFO] [stderr] 366 - fn do_stuff_with_pointer<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stderr] 366 + fn do_stuff_with_pointer<'a>(with: &'a i32) -> impl Desaturated + 'a { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stderr] --> src/lib.rs:371:94 [INFO] [stderr] | [INFO] [stderr] 371 | fn do_stuff_with_pointer_in_inner_function<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stderr] | -- the lifetime is named here ^^ the same lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: consistently use `'a` [INFO] [stderr] | [INFO] [stderr] 371 - fn do_stuff_with_pointer_in_inner_function<'a>(with: &'a i32) -> impl Desaturated + '_ { [INFO] [stderr] 371 + fn do_stuff_with_pointer_in_inner_function<'a>(with: &'a i32) -> impl Desaturated + 'a { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `desaturate` (lib test) generated 2 warnings (run `cargo fix --lib -p desaturate --tests` to apply 2 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/desaturate-2aa63bf3fef25fb5) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test tests::can_take_pointer ... ignored [INFO] [stdout] test tests::it_always_builds ... ignored [INFO] [stdout] test tests::normal_returns_right ... ignored [INFO] [stdout] test tests::async_can_take_pointer ... ok [INFO] [stdout] test tests::async_returns_right ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests desaturate [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 110) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 110) stdout ---- [INFO] [stdout] fn do_nothing() -> impl :: desaturate :: Desaturated < () > [INFO] [stdout] { [INFO] [stdout] :: desaturate :: IntoDesaturated :: [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] [stdout] desaturate(async move {}, || unreachable! [INFO] [stdout] ("Tried to call Desaturated from do_nothing when desaturate wasn't compiled with \"blocking\"")) [INFO] [stdout] } [INFO] [stdout] error[E0658]: attributes on expressions are experimental [INFO] [stdout] --> src/lib.rs:128:5 [INFO] [stdout] | [INFO] [stdout] 20 | #[for_blocking] { something = arg + 1 } [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #15701 for more information [INFO] [stdout] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-27; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] error[E0658]: attributes on expressions are experimental [INFO] [stdout] --> src/lib.rs:129:5 [INFO] [stdout] | [INFO] [stdout] 21 | #[for_async] { something = arg - 1 } [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #15701 for more information [INFO] [stdout] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-27; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `for_async` in this scope [INFO] [stdout] --> src/lib.rs:129:7 [INFO] [stdout] | [INFO] [stdout] 21 | #[for_async] { something = arg - 1 } [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `for_blocking` in this scope [INFO] [stdout] --> src/lib.rs:128:7 [INFO] [stdout] | [INFO] [stdout] 20 | #[for_blocking] { something = arg + 1 } [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `arg` in this scope [INFO] [stdout] --> src/lib.rs:128:35 [INFO] [stdout] | [INFO] [stdout] 20 | #[for_blocking] { something = arg + 1 } [INFO] [stdout] | ^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `arg` in this scope [INFO] [stdout] --> src/lib.rs:129:32 [INFO] [stdout] | [INFO] [stdout] 21 | #[for_async] { something = arg - 1 } [INFO] [stdout] | ^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `call` exists for opaque type `impl Desaturated`, but its trait bounds were not satisfied [INFO] [stdout] --> src/lib.rs:135:34 [INFO] [stdout] | [INFO] [stdout] 27 | assert_eq!(6, target_specific(5).call()); [INFO] [stdout] | ^^^^ method cannot be called on `impl Desaturated` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as FnOnce<()>>::Output = _` [INFO] [stdout] which is required by `impl Desaturated: Blocking<_>` [INFO] [stdout] `impl Desaturated: FnOnce<()>` [INFO] [stdout] which is required by `impl Desaturated: Blocking<_>` [INFO] [stdout] `<&impl Desaturated as FnOnce<()>>::Output = _` [INFO] [stdout] which is required by `&impl Desaturated: Blocking<_>` [INFO] [stdout] `&impl Desaturated: FnOnce<()>` [INFO] [stdout] which is required by `&impl Desaturated: Blocking<_>` [INFO] [stdout] `<&mut impl Desaturated as FnOnce<()>>::Output = _` [INFO] [stdout] which is required by `&mut impl Desaturated: Blocking<_>` [INFO] [stdout] `&mut impl Desaturated: FnOnce<()>` [INFO] [stdout] which is required by `&mut impl Desaturated: Blocking<_>` [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0599, E0658. [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 110) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "abedce77cd763d86bf826ad1247bffb92dd5762868794f4b76af694d4751386b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "abedce77cd763d86bf826ad1247bffb92dd5762868794f4b76af694d4751386b", kill_on_drop: false }` [INFO] [stdout] abedce77cd763d86bf826ad1247bffb92dd5762868794f4b76af694d4751386b