[INFO] fetching crate indexed-ring-buffer 0.1.3... [INFO] checking indexed-ring-buffer-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate indexed-ring-buffer 0.1.3 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate indexed-ring-buffer 0.1.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate indexed-ring-buffer 0.1.3 [INFO] finished tweaking crates.io crate indexed-ring-buffer 0.1.3 [INFO] tweaked toml for crates.io crate indexed-ring-buffer 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 57 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cast v0.2.7 (latest: v0.3.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding criterion v0.2.11 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.3.1 (latest: v0.5.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.8.2 (latest: v0.12.1) [INFO] [stderr] Adding lock_api v0.3.4 (latest: v0.4.11) [INFO] [stderr] Adding parking_lot v0.10.2 (latest: v0.12.1) [INFO] [stderr] Adding parking_lot_core v0.7.3 (latest: v0.9.9) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_os v0.1.3 (latest: v0.2.2) [INFO] [stderr] Adding rand_xoshiro v0.1.0 (latest: v0.6.0) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding redox_syscall v0.1.57 (latest: v0.5.1) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f9beefecc800c1e898497527349b561d41238618498e72ed32abc016da1cc5db [INFO] running `Command { std: "docker" "start" "-a" "f9beefecc800c1e898497527349b561d41238618498e72ed32abc016da1cc5db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f9beefecc800c1e898497527349b561d41238618498e72ed32abc016da1cc5db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f9beefecc800c1e898497527349b561d41238618498e72ed32abc016da1cc5db", kill_on_drop: false }` [INFO] [stdout] f9beefecc800c1e898497527349b561d41238618498e72ed32abc016da1cc5db [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4dea2060243c0b25d62c293f4448296e03d11f7d63238c559a3fcdd0b97477f5 [INFO] running `Command { std: "docker" "start" "-a" "4dea2060243c0b25d62c293f4448296e03d11f7d63238c559a3fcdd0b97477f5", kill_on_drop: false }` [INFO] [stderr] Checking parking_lot_core v0.7.3 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking criterion v0.2.11 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking indexed-ring-buffer v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:168:13 [INFO] [stdout] | [INFO] [stdout] 168 | mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 168 | let _ = mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Consumer`, `Producer` [INFO] [stdout] --> tests/threads.rs:2:48 [INFO] [stdout] | [INFO] [stdout] 2 | use indexed_ring_buffer::{indexed_ring_buffer, Consumer, Producer, Reader}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fm` [INFO] [stdout] --> tests/threads.rs:22:26 [INFO] [stdout] | [INFO] [stdout] 22 | if let Some((fm, to, v)) = r.get_from(last_id.wrapping_add(1), READ_SIZE) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_fm` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arc_data` [INFO] [stdout] --> tests/threads.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let arc_data = Arc::new(in_data.clone()); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arc_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Consumer`, `Producer`, `Reader` [INFO] [stdout] --> tests/test.rs:3:48 [INFO] [stdout] | [INFO] [stdout] 3 | use indexed_ring_buffer::{indexed_ring_buffer, Consumer, Producer, Reader}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:168:13 [INFO] [stdout] | [INFO] [stdout] 168 | mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 168 | let _ = mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `read` [INFO] [stdout] --> tests/test.rs:7:30 [INFO] [stdout] | [INFO] [stdout] 7 | let (mut prod, mut cons, read) = indexed_ring_buffer::(0, 1); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_read` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test.rs:19:10 [INFO] [stdout] | [INFO] [stdout] 19 | let (mut prod, mut cons, read) = indexed_ring_buffer::(0, 10); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test.rs:19:20 [INFO] [stdout] | [INFO] [stdout] 19 | let (mut prod, mut cons, read) = indexed_ring_buffer::(0, 10); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cons` [INFO] [stdout] --> tests/test.rs:94:24 [INFO] [stdout] | [INFO] [stdout] 94 | let (mut prod, mut cons, read) = indexed_ring_buffer::(n, 10); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cons` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test.rs:94:20 [INFO] [stdout] | [INFO] [stdout] 94 | let (mut prod, mut cons, read) = indexed_ring_buffer::(n, 10); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.90s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11 [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" "4dea2060243c0b25d62c293f4448296e03d11f7d63238c559a3fcdd0b97477f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dea2060243c0b25d62c293f4448296e03d11f7d63238c559a3fcdd0b97477f5", kill_on_drop: false }` [INFO] [stdout] 4dea2060243c0b25d62c293f4448296e03d11f7d63238c559a3fcdd0b97477f5