[INFO] fetching crate indexed-ring-buffer 0.1.3...
[INFO] testing indexed-ring-buffer-0.1.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate indexed-ring-buffer 0.1.3 into /workspace/builds/worker-0-tc2/source
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate indexed-ring-buffer 0.1.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 59 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.2.11 (available: v0.7.0)
[INFO] [stderr]       Adding parking_lot v0.10.2 (available: v0.12.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6a5320c879a39471d3df108638b980ca31a6d04f71e415cf17d8cde14ba8d55
[INFO] running `Command { std: "docker" "start" "-a" "d6a5320c879a39471d3df108638b980ca31a6d04f71e415cf17d8cde14ba8d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6a5320c879a39471d3df108638b980ca31a6d04f71e415cf17d8cde14ba8d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6a5320c879a39471d3df108638b980ca31a6d04f71e415cf17d8cde14ba8d55", kill_on_drop: false }`
[INFO] [stdout] d6a5320c879a39471d3df108638b980ca31a6d04f71e415cf17d8cde14ba8d55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 464d1275b115ef2031e24a7c09be7021f958d258c8e9dbfa98579b416b78fccb
[INFO] running `Command { std: "docker" "start" "-a" "464d1275b115ef2031e24a7c09be7021f958d258c8e9dbfa98579b416b78fccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling parking_lot_core v0.7.3
[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: if you don't need the old value, you can just assign the new value directly
[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] 168 |             let _ = mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "464d1275b115ef2031e24a7c09be7021f958d258c8e9dbfa98579b416b78fccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464d1275b115ef2031e24a7c09be7021f958d258c8e9dbfa98579b416b78fccb", kill_on_drop: false }`
[INFO] [stdout] 464d1275b115ef2031e24a7c09be7021f958d258c8e9dbfa98579b416b78fccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b6e983dd9defe7bc68840136bff7f1551481c36b2a558cca3e8d77865304b70
[INFO] running `Command { std: "docker" "start" "-a" "7b6e983dd9defe7bc68840136bff7f1551481c36b2a558cca3e8d77865304b70", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling rayon v1.11.0
[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: if you don't need the old value, you can just assign the new value directly
[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] 168 |             let _ = mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[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` and `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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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`, and `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)]` (part of `#[warn(unused)]`) 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::<usize>(0, 1);
[INFO] [stdout]   |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_read`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) 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::<usize>(0, 10);
[INFO] [stdout]    |          ----^^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) 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::<usize>(0, 10);
[INFO] [stdout]    |                    ----^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[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::<usize>(n, 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:94:20
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let (mut prod, mut cons, read) = indexed_ring_buffer::<usize>(n, 10);
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cons`
[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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 16.31s
[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 1`
[INFO] running `Command { std: "docker" "inspect" "7b6e983dd9defe7bc68840136bff7f1551481c36b2a558cca3e8d77865304b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b6e983dd9defe7bc68840136bff7f1551481c36b2a558cca3e8d77865304b70", kill_on_drop: false }`
[INFO] [stdout] 7b6e983dd9defe7bc68840136bff7f1551481c36b2a558cca3e8d77865304b70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ffbbf1fed838aebdbbe6ff3cba240cb884a97037ae6683fb99a9ae65bbd3b278
[INFO] running `Command { std: "docker" "start" "-a" "ffbbf1fed838aebdbbe6ff3cba240cb884a97037ae6683fb99a9ae65bbd3b278", 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: if you don't need the old value, you can just assign the new value directly
[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] 168 |             let _ = mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v));
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `indexed-ring-buffer` (lib) generated 1 warning
[INFO] [stderr] warning: unused imports: `Consumer` and `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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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: `indexed-ring-buffer` (test "threads") generated 3 warnings (run `cargo fix --test "threads" -p indexed-ring-buffer` to apply 3 suggestions)
[INFO] [stderr] warning: unused imports: `Consumer`, `Producer`, and `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)]` (part of `#[warn(unused)]`) 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::<usize>(0, 1);
[INFO] [stderr]   |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_read`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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::<usize>(0, 10);
[INFO] [stderr]    |          ----^^^^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) 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::<usize>(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::<usize>(n, 10);
[INFO] [stderr]    |                    ----^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[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::<usize>(n, 10);
[INFO] [stderr]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cons`
[INFO] [stderr] 
[INFO] [stderr] warning: `indexed-ring-buffer` (test "test") generated 6 warnings (run `cargo fix --test "test" -p indexed-ring-buffer` to apply 6 suggestions)
[INFO] [stderr] warning: `indexed-ring-buffer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[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 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/indexed_ring_buffer-7e7bd8933c6e9f10)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-6dbda1dd3d97d930)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_wrapping_add ... ok
[INFO] [stdout] test test_create ... ok
[INFO] [stdout] test test_minimum ... ok
[INFO] [stdout] test test_full_and_empty ... ok
[INFO] [stdout] test test_queue ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/threads.rs (/opt/rustwide/target/debug/deps/threads-ed59e0d1533f846f)
[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; finished in 6.78s
[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; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ffbbf1fed838aebdbbe6ff3cba240cb884a97037ae6683fb99a9ae65bbd3b278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffbbf1fed838aebdbbe6ff3cba240cb884a97037ae6683fb99a9ae65bbd3b278", kill_on_drop: false }`
[INFO] [stdout] ffbbf1fed838aebdbbe6ff3cba240cb884a97037ae6683fb99a9ae65bbd3b278
