[INFO] crate messenger 0.1.0 is already in cache
[INFO] testing messenger-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate messenger 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate messenger 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate messenger 0.1.0
[INFO] finished tweaking crates.io crate messenger 0.1.0
[INFO] tweaked toml for crates.io crate messenger 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 625601da515018d5ebf14a9e3301565b751ffb704d8a300ecd7c3804bb5a20b3
[INFO] running `Command { std: "docker" "start" "-a" "625601da515018d5ebf14a9e3301565b751ffb704d8a300ecd7c3804bb5a20b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625601da515018d5ebf14a9e3301565b751ffb704d8a300ecd7c3804bb5a20b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625601da515018d5ebf14a9e3301565b751ffb704d8a300ecd7c3804bb5a20b3", kill_on_drop: false }`
[INFO] [stdout] 625601da515018d5ebf14a9e3301565b751ffb704d8a300ecd7c3804bb5a20b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29bb9f7eb9fc99001e406f9ca01640d3f4eefb3d55b68a9f6ae2285ccbcf3eec
[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" "29bb9f7eb9fc99001e406f9ca01640d3f4eefb3d55b68a9f6ae2285ccbcf3eec", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling messenger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/messenger.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Callback<T> = Box<Fn(Vec<T>)>;
[INFO] [stdout]   |                        ^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<T>)`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/messenger.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Subscribe<T> = (u32, Box<Fn(&T) -> Option<T>>);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> Option<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/messenger.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |     sender: Box<Sender<Item = Message<T>>>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sender<Item = Message<T>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused boxed `std::ops::Fn` trait object in tuple element 1 that must be used
[INFO] [stdout]   --> src/messenger.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 subscribers.remove(index);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.53s
[INFO] running `Command { std: "docker" "inspect" "29bb9f7eb9fc99001e406f9ca01640d3f4eefb3d55b68a9f6ae2285ccbcf3eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29bb9f7eb9fc99001e406f9ca01640d3f4eefb3d55b68a9f6ae2285ccbcf3eec", kill_on_drop: false }`
[INFO] [stdout] 29bb9f7eb9fc99001e406f9ca01640d3f4eefb3d55b68a9f6ae2285ccbcf3eec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 663900d91027a3ec931b05ed4642bdcc8eb204f8334ac122e74645bec2de48d3
[INFO] running `Command { std: "docker" "start" "-a" "663900d91027a3ec931b05ed4642bdcc8eb204f8334ac122e74645bec2de48d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/messenger.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Callback<T> = Box<Fn(Vec<T>)>;
[INFO] [stdout]   |                        ^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<T>)`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/messenger.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Subscribe<T> = (u32, Box<Fn(&T) -> Option<T>>);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> Option<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/messenger.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |     sender: Box<Sender<Item = Message<T>>>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sender<Item = Message<T>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused boxed `std::ops::Fn` trait object in tuple element 1 that must be used
[INFO] [stdout]   --> src/messenger.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 subscribers.remove(index);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling messenger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/messenger.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Callback<T> = Box<Fn(Vec<T>)>;
[INFO] [stdout]   |                        ^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<T>)`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/messenger.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Subscribe<T> = (u32, Box<Fn(&T) -> Option<T>>);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> Option<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/messenger.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |     sender: Box<Sender<Item = Message<T>>>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sender<Item = Message<T>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused boxed `std::ops::Fn` trait object in tuple element 1 that must be used
[INFO] [stdout]   --> src/messenger.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 subscribers.remove(index);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'tokio::executor::current_thread': use tokio-current-thread crate or functions in tokio::runtime::current_thread instead
[INFO] [stdout]  --> tests/messenger_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::executor::current_thread;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'tokio::executor::current_thread::run': use block_on_all instead
[INFO] [stdout]   --> tests/messenger_test.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     current_thread::run(move |_| {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.07s
[INFO] running `Command { std: "docker" "inspect" "663900d91027a3ec931b05ed4642bdcc8eb204f8334ac122e74645bec2de48d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663900d91027a3ec931b05ed4642bdcc8eb204f8334ac122e74645bec2de48d3", kill_on_drop: false }`
[INFO] [stdout] 663900d91027a3ec931b05ed4642bdcc8eb204f8334ac122e74645bec2de48d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15137fbde1dd1fe0d624c943c8a9a892b0b21607393bbfa0b4145936b69aeb76
[INFO] running `Command { std: "docker" "start" "-a" "15137fbde1dd1fe0d624c943c8a9a892b0b21607393bbfa0b4145936b69aeb76", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/messenger.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Callback<T> = Box<Fn(Vec<T>)>;
[INFO] [stderr]   |                        ^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<T>)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/messenger.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Subscribe<T> = (u32, Box<Fn(&T) -> Option<T>>);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> Option<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/messenger.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |     sender: Box<Sender<Item = Message<T>>>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sender<Item = Message<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused boxed `std::ops::Fn` trait object in tuple element 1 that must be used
[INFO] [stderr]   --> src/messenger.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 subscribers.remove(index);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated item 'tokio::executor::current_thread': use tokio-current-thread crate or functions in tokio::runtime::current_thread instead
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> tests/messenger_test.rs:8:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 8 | use tokio::executor::current_thread;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio::executor::current_thread::run': use block_on_all instead
[INFO] [stderr]   --> tests/messenger_test.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     current_thread::run(move |_| {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/messenger.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Callback<T> = Box<Fn(Vec<T>)>;
[INFO] [stderr]   |                        ^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<T>)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/messenger.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Subscribe<T> = (u32, Box<Fn(&T) -> Option<T>>);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> Option<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/messenger.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |     sender: Box<Sender<Item = Message<T>>>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sender<Item = Message<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused boxed `std::ops::Fn` trait object in tuple element 1 that must be used
[INFO] [stderr]   --> src/messenger.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 subscribers.remove(index);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/messenger-28c7999cf0bcd34e
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/messenger_test-ec6be2c519e24bdf
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test messenger_test ... 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 messenger
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "15137fbde1dd1fe0d624c943c8a9a892b0b21607393bbfa0b4145936b69aeb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15137fbde1dd1fe0d624c943c8a9a892b0b21607393bbfa0b4145936b69aeb76", kill_on_drop: false }`
[INFO] [stdout] 15137fbde1dd1fe0d624c943c8a9a892b0b21607393bbfa0b4145936b69aeb76