[INFO] fetching crate microstack 0.0.7... [INFO] testing microstack-0.0.7 against 1.91.0 for beta-1.92-2 [INFO] extracting crate microstack 0.0.7 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate microstack 0.0.7 [INFO] finished tweaking crates.io crate microstack 0.0.7 [INFO] tweaked toml for crates.io crate microstack 0.0.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate microstack 0.0.7 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 8 packages to latest compatible versions [INFO] [stderr] Adding bincode v1.3.3 (available: v2.0.1) [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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0a674e5a4f0e4d054e14f19dd87094203f0072eaa26a44fb16ddc58ff2752ffa [INFO] running `Command { std: "docker" "start" "-a" "0a674e5a4f0e4d054e14f19dd87094203f0072eaa26a44fb16ddc58ff2752ffa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0a674e5a4f0e4d054e14f19dd87094203f0072eaa26a44fb16ddc58ff2752ffa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a674e5a4f0e4d054e14f19dd87094203f0072eaa26a44fb16ddc58ff2752ffa", kill_on_drop: false }` [INFO] [stdout] 0a674e5a4f0e4d054e14f19dd87094203f0072eaa26a44fb16ddc58ff2752ffa [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=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] 79d6700dffe35817c99b104682b0fb58b25de4d9e501191907b6271366a31301 [INFO] running `Command { std: "docker" "start" "-a" "79d6700dffe35817c99b104682b0fb58b25de4d9e501191907b6271366a31301", kill_on_drop: false }` [INFO] [stderr] Compiling microstack v0.0.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/clone.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/ctors.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/iterators.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/iterators.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/iterators.rs:73:23 [INFO] [stdout] | [INFO] [stdout] 73 | pub const fn iter(&self) -> Iter { [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)]` implied by `#[warn(warnings)]` [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 73 | pub const fn iter(&self) -> Iter<'_, V, N> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s [INFO] running `Command { std: "docker" "inspect" "79d6700dffe35817c99b104682b0fb58b25de4d9e501191907b6271366a31301", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79d6700dffe35817c99b104682b0fb58b25de4d9e501191907b6271366a31301", kill_on_drop: false }` [INFO] [stdout] 79d6700dffe35817c99b104682b0fb58b25de4d9e501191907b6271366a31301 [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=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] 8ce6a38729d1a9f05cb7925fb871ce61e940e762b3fd63e9d1959194db0fcb8e [INFO] running `Command { std: "docker" "start" "-a" "8ce6a38729d1a9f05cb7925fb871ce61e940e762b3fd63e9d1959194db0fcb8e", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/clone.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/ctors.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/iterators.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/iterators.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/iterators.rs:73:23 [INFO] [stdout] | [INFO] [stdout] 73 | pub const fn iter(&self) -> Iter { [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)]` implied by `#[warn(warnings)]` [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 73 | pub const fn iter(&self) -> Iter<'_, V, N> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling bincode v1.3.3 [INFO] [stderr] Compiling microstack v0.0.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/clone.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/ctors.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/iterators.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/iterators.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/iterators.rs:73:23 [INFO] [stdout] | [INFO] [stdout] 73 | pub const fn iter(&self) -> Iter { [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)]` implied by `#[warn(warnings)]` [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 73 | pub const fn iter(&self) -> Iter<'_, V, N> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.42s [INFO] running `Command { std: "docker" "inspect" "8ce6a38729d1a9f05cb7925fb871ce61e940e762b3fd63e9d1959194db0fcb8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ce6a38729d1a9f05cb7925fb871ce61e940e762b3fd63e9d1959194db0fcb8e", kill_on_drop: false }` [INFO] [stdout] 8ce6a38729d1a9f05cb7925fb871ce61e940e762b3fd63e9d1959194db0fcb8e [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=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] 69eec7d7fb762d6d60a36a8f0a07e9eaef9585667bdeb7a673c4de44e0d0e03f [INFO] running `Command { std: "docker" "start" "-a" "69eec7d7fb762d6d60a36a8f0a07e9eaef9585667bdeb7a673c4de44e0d0e03f", kill_on_drop: false }` [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] [INFO] [stderr] --> src/clone.rs:26:5 [INFO] [stdout] running 21 tests [INFO] [stderr] | [INFO] [stdout] test clone::empty_stack_can_be_cloned ... ok [INFO] [stderr] 26 | #[must_use] [INFO] [stdout] test clone::full_stack_can_be_cloned ... ok [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stdout] test clone::stack_can_be_cloned ... ok [INFO] [stderr] | [INFO] [stdout] test ctors::makes_new_stack ... ok [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] [stdout] test ctors::makes_default_stack ... ok [INFO] [stderr] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] test debug::displays_stack ... ok [INFO] [stderr] note: the lint level is defined here [INFO] [stdout] test iterators::push_and_iterate ... ok [INFO] [stderr] --> src/lib.rs:41:9 [INFO] [stdout] test debug::debugs_stack ... ok [INFO] [stderr] | [INFO] [stdout] test stack::build_from_vec ... ok [INFO] [stderr] 41 | #![deny(warnings)] [INFO] [stdout] test stack::push_after_clear ... ok [INFO] [stderr] | ^^^^^^^^ [INFO] [stdout] test stack::push_and_pop ... ok [INFO] [stderr] = note: `#[warn(unused_attributes)]` implied by `#[warn(warnings)]` [INFO] [stdout] test stack::pop_none ... ok [INFO] [stderr] [INFO] [stdout] test stack::read_capacity ... ok [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] test stack::with_str ... ok [INFO] [stderr] --> src/ctors.rs:27:5 [INFO] [stdout] test stack::safely_pop ... ok [INFO] [stderr] | [INFO] [stdout] test stack::try_to_push ... ok [INFO] [stderr] 27 | #[must_use] [INFO] [stdout] test stack::push_one ... ok [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stdout] test iterators::push_and_into_iterate ... ok [INFO] [stderr] | [INFO] [stdout] test stack::push_safely ... ok [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] [stdout] test stack::panic_on_empty_stack_push - should panic ... ok [INFO] [stderr] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] test stack::panic_on_empty_stack_pop - should panic ... ok [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stderr] --> src/iterators.rs:28:5 [INFO] [stdout] [INFO] [stderr] | [INFO] [stderr] 28 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stderr] [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stderr] --> src/iterators.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | #[must_use] [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] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/iterators.rs:73:23 [INFO] [stderr] | [INFO] [stderr] 73 | pub const fn iter(&self) -> Iter { [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)]` implied by `#[warn(warnings)]` [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 73 | pub const fn iter(&self) -> Iter<'_, V, N> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `microstack` (lib) generated 5 warnings (run `cargo fix --lib -p microstack` to apply 5 suggestions) [INFO] [stderr] warning: `microstack` (lib test) generated 5 warnings (5 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/microstack-5f05f2d7a717de66) [INFO] [stderr] Doc-tests microstack [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - Stack (line 61) ... ok [INFO] [stdout] test src/lib.rs - (line 26) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "69eec7d7fb762d6d60a36a8f0a07e9eaef9585667bdeb7a673c4de44e0d0e03f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69eec7d7fb762d6d60a36a8f0a07e9eaef9585667bdeb7a673c4de44e0d0e03f", kill_on_drop: false }` [INFO] [stdout] 69eec7d7fb762d6d60a36a8f0a07e9eaef9585667bdeb7a673c4de44e0d0e03f