[INFO] fetching crate bottles 0.1.1...
[INFO] testing bottles-0.1.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate bottles 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate bottles 0.1.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bottles 0.1.1
[INFO] finished tweaking crates.io crate bottles 0.1.1
[INFO] tweaked toml for crates.io crate bottles 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8284be7c7783cd9fc43691c24e350d1a677991c908e9718ad8d921868ce6b31c
[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" "8284be7c7783cd9fc43691c24e350d1a677991c908e9718ad8d921868ce6b31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8284be7c7783cd9fc43691c24e350d1a677991c908e9718ad8d921868ce6b31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8284be7c7783cd9fc43691c24e350d1a677991c908e9718ad8d921868ce6b31c", kill_on_drop: false }`
[INFO] [stdout] 8284be7c7783cd9fc43691c24e350d1a677991c908e9718ad8d921868ce6b31c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7399edf8c454d7ecefd57cf20c67b1f76a54855d118eae239f33db3a957a568
[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" "c7399edf8c454d7ecefd57cf20c67b1f76a54855d118eae239f33db3a957a568", kill_on_drop: false }`
[INFO] [stderr]    Compiling bottles v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[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]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[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/dispatcher.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut wrapped = move |msg: *const ()| {
[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/dispatcher.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut subscribers = self.map.get_mut(&TypeId::of::<T>())
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dispatcher.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let untyped = unsafe { Rc::into_raw(Rc::clone(&msg)) };
[INFO] [stdout]    |                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/queue.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |             queue.push(unsafe { Rc::into_raw(msg) } as *const ());
[INFO] [stdout]    |                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "c7399edf8c454d7ecefd57cf20c67b1f76a54855d118eae239f33db3a957a568", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7399edf8c454d7ecefd57cf20c67b1f76a54855d118eae239f33db3a957a568", kill_on_drop: false }`
[INFO] [stdout] c7399edf8c454d7ecefd57cf20c67b1f76a54855d118eae239f33db3a957a568
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8b10935fc53bbab2d495e8d8b111942d205c412c46400848f6276914b100849
[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" "f8b10935fc53bbab2d495e8d8b111942d205c412c46400848f6276914b100849", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bottles v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[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/dispatcher.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut wrapped = move |msg: *const ()| {
[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/dispatcher.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut subscribers = self.map.get_mut(&TypeId::of::<T>())
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dispatcher.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let untyped = unsafe { Rc::into_raw(Rc::clone(&msg)) };
[INFO] [stdout]    |                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/queue.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |             queue.push(unsafe { Rc::into_raw(msg) } as *const ());
[INFO] [stdout]    |                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[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]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[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/dispatcher.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut wrapped = move |msg: *const ()| {
[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/dispatcher.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut subscribers = self.map.get_mut(&TypeId::of::<T>())
[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/dispatcher.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 |             let mut pop = move |msg| {
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dispatcher.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let untyped = unsafe { Rc::into_raw(Rc::clone(&msg)) };
[INFO] [stdout]    |                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/queue.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |             queue.push(unsafe { Rc::into_raw(msg) } as *const ());
[INFO] [stdout]    |                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Empty`
[INFO] [stdout]    --> src/dispatcher.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     struct Empty {}
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Farawell`
[INFO] [stdout]    --> src/dispatcher.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 |     struct Farawell {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Context`
[INFO] [stdout]    --> src/dispatcher.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     struct Context {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "f8b10935fc53bbab2d495e8d8b111942d205c412c46400848f6276914b100849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b10935fc53bbab2d495e8d8b111942d205c412c46400848f6276914b100849", kill_on_drop: false }`
[INFO] [stdout] f8b10935fc53bbab2d495e8d8b111942d205c412c46400848f6276914b100849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0896fd1d93620078de3d38d9e81319f7627d5f1021ab38002d0bde33d2731a87
[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" "0896fd1d93620078de3d38d9e81319f7627d5f1021ab38002d0bde33d2731a87", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `subs`
[INFO] [stderr]   --> src/dispatcher.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stderr]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/dispatcher.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[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]   --> src/dispatcher.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut wrapped = move |msg: *const ()| {
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/dispatcher.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut subscribers = self.map.get_mut(&TypeId::of::<T>())
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dispatcher.rs:91:27
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let untyped = unsafe { Rc::into_raw(Rc::clone(&msg)) };
[INFO] [stderr]    |                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/queue.rs:72:24
[INFO] [stderr]    |
[INFO] [stderr] 72 |             queue.push(unsafe { Rc::into_raw(msg) } as *const ());
[INFO] [stderr]    |                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `subs`
[INFO] [stderr]   --> src/dispatcher.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stderr]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/dispatcher.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[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]   --> src/dispatcher.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut wrapped = move |msg: *const ()| {
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/dispatcher.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut subscribers = self.map.get_mut(&TypeId::of::<T>())
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/dispatcher.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let mut pop = move |msg| {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dispatcher.rs:91:27
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let untyped = unsafe { Rc::into_raw(Rc::clone(&msg)) };
[INFO] [stderr]    |                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/queue.rs:72:24
[INFO] [stderr]    |
[INFO] [stderr] 72 |             queue.push(unsafe { Rc::into_raw(msg) } as *const ());
[INFO] [stderr]    |                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Empty`
[INFO] [stderr]    --> src/dispatcher.rs:103:12
[INFO] [stderr]     |
[INFO] [stderr] 103 |     struct Empty {}
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Farawell`
[INFO] [stderr]    --> src/dispatcher.rs:109:12
[INFO] [stderr]     |
[INFO] [stderr] 109 |     struct Farawell {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Context`
[INFO] [stderr]    --> src/dispatcher.rs:113:12
[INFO] [stderr]     |
[INFO] [stderr] 113 |     struct Context {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bottles-8b94a7fc46314aae
[INFO] [stdout] running 4 tests
[INFO] [stdout] test dispatcher::tests::test_basic ... ok
[INFO] [stdout] test dispatcher::tests::test_multiple_subscribers ... ok
[INFO] [stderr]    Doc-tests bottles
[INFO] [stdout] test queue::tests::test_queue_sink ... ok
[INFO] [stdout] test queue::tests::test_wrapping ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/dispatcher.rs - dispatcher::Dispatcher::subscribe (line 51) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] test src/lib.rs - (line 60) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0896fd1d93620078de3d38d9e81319f7627d5f1021ab38002d0bde33d2731a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0896fd1d93620078de3d38d9e81319f7627d5f1021ab38002d0bde33d2731a87", kill_on_drop: false }`
[INFO] [stdout] 0896fd1d93620078de3d38d9e81319f7627d5f1021ab38002d0bde33d2731a87
