[INFO] fetching crate indexed-ring-buffer 0.1.3... [INFO] testing indexed-ring-buffer-0.1.3 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296 [INFO] extracting crate indexed-ring-buffer 0.1.3 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate indexed-ring-buffer 0.1.3 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", 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-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 041f91ad6b18d3f1b6a7e196ca694b38743573eb56f35a28508b1b9576e65e06 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "041f91ad6b18d3f1b6a7e196ca694b38743573eb56f35a28508b1b9576e65e06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "041f91ad6b18d3f1b6a7e196ca694b38743573eb56f35a28508b1b9576e65e06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "041f91ad6b18d3f1b6a7e196ca694b38743573eb56f35a28508b1b9576e65e06", kill_on_drop: false }` [INFO] [stdout] 041f91ad6b18d3f1b6a7e196ca694b38743573eb56f35a28508b1b9576e65e06 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c444eacd1556e6d03cddb6a2ae2635a1186977b2ca36d307547fdec8f57230ca [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c444eacd1556e6d03cddb6a2ae2635a1186977b2ca36d307547fdec8f57230ca", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling smallvec v1.5.0 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling parking_lot_core v0.7.2 [INFO] [stderr] Compiling parking_lot v0.10.2 [INFO] [stderr] Compiling 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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.68s [INFO] running `Command { std: "docker" "inspect" "c444eacd1556e6d03cddb6a2ae2635a1186977b2ca36d307547fdec8f57230ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c444eacd1556e6d03cddb6a2ae2635a1186977b2ca36d307547fdec8f57230ca", kill_on_drop: false }` [INFO] [stdout] c444eacd1556e6d03cddb6a2ae2635a1186977b2ca36d307547fdec8f57230ca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 31e57081b6d70dadc5f9529d80e16f7d50acc53ad70f98c33692364929154698 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "31e57081b6d70dadc5f9529d80e16f7d50acc53ad70f98c33692364929154698", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling itoa v0.4.6 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand_xoshiro v0.1.0 [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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling crossbeam-channel v0.5.0 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling crossbeam-epoch v0.9.1 [INFO] [stderr] Compiling criterion-plot v0.3.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling bstr v0.2.14 [INFO] [stderr] Compiling csv v1.1.5 [INFO] [stderr] Compiling tinytemplate v1.1.0 [INFO] [stderr] Compiling criterion v0.2.11 [INFO] [stderr] Compiling indexed-ring-buffer v0.1.3 (/opt/rustwide/workdir) [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: 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: unused variable: `cons` [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] | ^^^^^^^^ 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: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 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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 46.13s [INFO] running `Command { std: "docker" "inspect" "31e57081b6d70dadc5f9529d80e16f7d50acc53ad70f98c33692364929154698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31e57081b6d70dadc5f9529d80e16f7d50acc53ad70f98c33692364929154698", kill_on_drop: false }` [INFO] [stdout] 31e57081b6d70dadc5f9529d80e16f7d50acc53ad70f98c33692364929154698 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ce367486d7e2879fceb7747ac71a823c485f29d9cdc415acc97d23233b80caac [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ce367486d7e2879fceb7747ac71a823c485f29d9cdc415acc97d23233b80caac", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/lib.rs:168:13 [INFO] [stderr] | [INFO] [stderr] 168 | mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Consumer`, `Producer`, `Reader` [INFO] [stderr] --> tests/test.rs:3:48 [INFO] [stderr] | [INFO] [stderr] 3 | use indexed_ring_buffer::{indexed_ring_buffer, Consumer, Producer, Reader}; [INFO] [stderr] | ^^^^^^^^ ^^^^^^^^ ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `read` [INFO] [stderr] --> tests/test.rs:7:30 [INFO] [stderr] | [INFO] [stderr] 7 | let (mut prod, mut cons, read) = indexed_ring_buffer::(0, 1); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_read` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cons` [INFO] [stderr] --> tests/test.rs:94:20 [INFO] [stderr] | [INFO] [stderr] 94 | let (mut prod, mut cons, read) = indexed_ring_buffer::(n, 10); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cons` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:19:10 [INFO] [stderr] | [INFO] [stderr] 19 | let (mut prod, mut cons, read) = indexed_ring_buffer::(0, 10); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:19:20 [INFO] [stderr] | [INFO] [stderr] 19 | let (mut prod, mut cons, read) = indexed_ring_buffer::(0, 10); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:94:20 [INFO] [stderr] | [INFO] [stderr] 94 | let (mut prod, mut cons, read) = indexed_ring_buffer::(n, 10); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Consumer`, `Producer` [INFO] [stderr] --> tests/threads.rs:2:48 [INFO] [stderr] | [INFO] [stderr] 2 | use indexed_ring_buffer::{indexed_ring_buffer, Consumer, Producer, Reader}; [INFO] [stderr] | ^^^^^^^^ ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `fm` [INFO] [stderr] --> tests/threads.rs:22:26 [INFO] [stderr] | [INFO] [stderr] 22 | if let Some((fm, to, v)) = r.get_from(last_id.wrapping_add(1), READ_SIZE) { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_fm` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arc_data` [INFO] [stderr] --> tests/threads.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let arc_data = Arc::new(in_data.clone()); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arc_data` [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/lib.rs:168:13 [INFO] [stderr] | [INFO] [stderr] 168 | mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.16s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/indexed_ring_buffer-92424db5a2abc92c [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/test-cba644f8175a8171 [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test test_wrapping_add ... ok [INFO] [stdout] test test_queue ... ok [INFO] [stdout] test test_minimum ... ok [INFO] [stdout] test test_create ... ok [INFO] [stdout] test test_full_and_empty ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/threads-be968a63207a325c [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_thread ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests indexed-ring-buffer [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - RingBuffer (line 18) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ce367486d7e2879fceb7747ac71a823c485f29d9cdc415acc97d23233b80caac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce367486d7e2879fceb7747ac71a823c485f29d9cdc415acc97d23233b80caac", kill_on_drop: false }` [INFO] [stdout] ce367486d7e2879fceb7747ac71a823c485f29d9cdc415acc97d23233b80caac