[INFO] cloning repository https://github.com/hudson-ayers/rlu-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hudson-ayers/rlu-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhudson-ayers%2Frlu-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhudson-ayers%2Frlu-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 540e97577cb8c3de29cc4eaf8b89b97d4ff5828f
[INFO] building hudson-ayers/rlu-rust against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhudson-ayers%2Frlu-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hudson-ayers/rlu-rust on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hudson-ayers/rlu-rust
[INFO] finished tweaking git repo https://github.com/hudson-ayers/rlu-rust
[INFO] tweaked toml for git repo https://github.com/hudson-ayers/rlu-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hudson-ayers/rlu-rust 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2046beeeeab15d8e4c1829babea782eb59af88d399b8337e1f4bc87bbd37e1eb
[INFO] running `Command { std: "docker" "start" "-a" "2046beeeeab15d8e4c1829babea782eb59af88d399b8337e1f4bc87bbd37e1eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2046beeeeab15d8e4c1829babea782eb59af88d399b8337e1f4bc87bbd37e1eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2046beeeeab15d8e4c1829babea782eb59af88d399b8337e1f4bc87bbd37e1eb", kill_on_drop: false }`
[INFO] [stdout] 2046beeeeab15d8e4c1829babea782eb59af88d399b8337e1f4bc87bbd37e1eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1c9816185cc37febe91b285ddb213c1a6f06866dea5473cc0404bc139e70e57
[INFO] running `Command { std: "docker" "start" "-a" "d1c9816185cc37febe91b285ddb213c1a6f06866dea5473cc0404bc139e70e57", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rlu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> src/rlu.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 std::sync::atomic::spin_loop_hint();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/rlu_set.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |             .compare_and_swap(ptr::null_mut(), new_obj, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rlu.rs:147:14
[INFO] [stdout]     |
[INFO] [stdout] 147 |             |mut box_thread| {
[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]    --> src/rlu.rs:169:46
[INFO] [stdout]     |
[INFO] [stdout] 169 |             (*rlu).threads[id].as_mut().map(|mut box_thread| {
[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]    --> src/rlu.rs:252:14
[INFO] [stdout]     |
[INFO] [stdout] 252 |             |mut box_thread| {
[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]    --> src/rlu.rs:270:14
[INFO] [stdout]     |
[INFO] [stdout] 270 |             |mut box_thread| {
[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]    --> src/rlu.rs:298:14
[INFO] [stdout]     |
[INFO] [stdout] 298 |             |mut box_thread| {
[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]    --> src/rlu.rs:334:14
[INFO] [stdout]     |
[INFO] [stdout] 334 |             |mut box_thread| {
[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]    --> src/rlu.rs:350:14
[INFO] [stdout]     |
[INFO] [stdout] 350 |             |mut box_thread| {
[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]    --> src/rlu.rs:412:14
[INFO] [stdout]     |
[INFO] [stdout] 412 |             |mut box_thread| {
[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]    --> src/rlu.rs:449:14
[INFO] [stdout]     |
[INFO] [stdout] 449 |             |mut box_thread| {
[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]    --> src/rlu.rs:469:14
[INFO] [stdout]     |
[INFO] [stdout] 469 |             |mut box_thread| {
[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]    --> src/rlu.rs:485:14
[INFO] [stdout]     |
[INFO] [stdout] 485 |             |mut box_thread| {
[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]    --> src/rlu.rs:502:10
[INFO] [stdout]     |
[INFO] [stdout] 502 |         |mut box_thread| {
[INFO] [stdout]     |          ----^^^^^^^^^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.29s
[INFO] running `Command { std: "docker" "inspect" "d1c9816185cc37febe91b285ddb213c1a6f06866dea5473cc0404bc139e70e57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c9816185cc37febe91b285ddb213c1a6f06866dea5473cc0404bc139e70e57", kill_on_drop: false }`
[INFO] [stdout] d1c9816185cc37febe91b285ddb213c1a6f06866dea5473cc0404bc139e70e57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a21a06193400d95e1930b9138544755d0495748b7c33b0ea4cd3861395c097d2
[INFO] running `Command { std: "docker" "start" "-a" "a21a06193400d95e1930b9138544755d0495748b7c33b0ea4cd3861395c097d2", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> src/rlu.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 std::sync::atomic::spin_loop_hint();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/rlu_set.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |             .compare_and_swap(ptr::null_mut(), new_obj, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rlu.rs:147:14
[INFO] [stdout]     |
[INFO] [stdout] 147 |             |mut box_thread| {
[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]    --> src/rlu.rs:169:46
[INFO] [stdout]     |
[INFO] [stdout] 169 |             (*rlu).threads[id].as_mut().map(|mut box_thread| {
[INFO] [stdout]     |                                              ----^^^^^^^^^^
[INFO] [stdout]     |                                              |
[INFO] [stdout]     |                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rlu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rlu.rs:252:14
[INFO] [stdout]     |
[INFO] [stdout] 252 |             |mut box_thread| {
[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]    --> src/rlu.rs:270:14
[INFO] [stdout]     |
[INFO] [stdout] 270 |             |mut box_thread| {
[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]    --> src/rlu.rs:298:14
[INFO] [stdout]     |
[INFO] [stdout] 298 |             |mut box_thread| {
[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]    --> src/rlu.rs:334:14
[INFO] [stdout]     |
[INFO] [stdout] 334 |             |mut box_thread| {
[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]    --> src/rlu.rs:350:14
[INFO] [stdout]     |
[INFO] [stdout] 350 |             |mut box_thread| {
[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]    --> src/rlu.rs:412:14
[INFO] [stdout]     |
[INFO] [stdout] 412 |             |mut box_thread| {
[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]    --> src/rlu.rs:449:14
[INFO] [stdout]     |
[INFO] [stdout] 449 |             |mut box_thread| {
[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]    --> src/rlu.rs:469:14
[INFO] [stdout]     |
[INFO] [stdout] 469 |             |mut box_thread| {
[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]    --> src/rlu.rs:485:14
[INFO] [stdout]     |
[INFO] [stdout] 485 |             |mut box_thread| {
[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]    --> src/rlu.rs:502:10
[INFO] [stdout]     |
[INFO] [stdout] 502 |         |mut box_thread| {
[INFO] [stdout]     |          ----^^^^^^^^^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> src/rlu.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 std::sync::atomic::spin_loop_hint();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> tests/rlu.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 97 |             .compare_and_swap(ptr::null_mut(), new_obj, Ordering::Relaxed)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/rlu_set.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |             .compare_and_swap(ptr::null_mut(), new_obj, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rlu.rs:147:14
[INFO] [stdout]     |
[INFO] [stdout] 147 |             |mut box_thread| {
[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]    --> src/rlu.rs:169:46
[INFO] [stdout]     |
[INFO] [stdout] 169 |             (*rlu).threads[id].as_mut().map(|mut box_thread| {
[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]    --> src/rlu.rs:252:14
[INFO] [stdout]     |
[INFO] [stdout] 252 |             |mut box_thread| {
[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]    --> src/rlu.rs:270:14
[INFO] [stdout]     |
[INFO] [stdout] 270 |             |mut box_thread| {
[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]    --> src/rlu.rs:298:14
[INFO] [stdout]     |
[INFO] [stdout] 298 |             |mut box_thread| {
[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]    --> src/rlu.rs:334:14
[INFO] [stdout]     |
[INFO] [stdout] 334 |             |mut box_thread| {
[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]    --> src/rlu.rs:350:14
[INFO] [stdout]     |
[INFO] [stdout] 350 |             |mut box_thread| {
[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]    --> src/rlu.rs:412:14
[INFO] [stdout]     |
[INFO] [stdout] 412 |             |mut box_thread| {
[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]    --> src/rlu.rs:449:14
[INFO] [stdout]     |
[INFO] [stdout] 449 |             |mut box_thread| {
[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]    --> src/rlu.rs:469:14
[INFO] [stdout]     |
[INFO] [stdout] 469 |             |mut box_thread| {
[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]    --> src/rlu.rs:485:14
[INFO] [stdout]     |
[INFO] [stdout] 485 |             |mut box_thread| {
[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]    --> src/rlu.rs:502:10
[INFO] [stdout]     |
[INFO] [stdout] 502 |         |mut box_thread| {
[INFO] [stdout]     |          ----^^^^^^^^^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "a21a06193400d95e1930b9138544755d0495748b7c33b0ea4cd3861395c097d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a21a06193400d95e1930b9138544755d0495748b7c33b0ea4cd3861395c097d2", kill_on_drop: false }`
[INFO] [stdout] a21a06193400d95e1930b9138544755d0495748b7c33b0ea4cd3861395c097d2