[INFO] cloning repository https://github.com/kvsari/message-queue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kvsari/message-queue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvsari%2Fmessage-queue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvsari%2Fmessage-queue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90906a0868b0a111bc05c0fb0d311bafde562c52
[INFO] testing kvsari/message-queue against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvsari%2Fmessage-queue" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kvsari/message-queue
[INFO] finished tweaking git repo https://github.com/kvsari/message-queue
[INFO] tweaked toml for git repo https://github.com/kvsari/message-queue written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kvsari/message-queue on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kvsari/message-queue 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-io v0.1.2
[INFO] [stderr]   Downloaded slab v0.3.0
[INFO] [stderr]   Downloaded derive-getters v0.0.2
[INFO] [stderr]   Downloaded magenta-sys v0.1.1
[INFO] [stderr]   Downloaded log v0.3.8
[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded conv v0.3.3
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded futures v0.1.14
[INFO] [stderr]   Downloaded libc v0.2.29
[INFO] [stderr]   Downloaded scoped-tls v0.1.0
[INFO] [stderr]   Downloaded custom_derive v0.1.7
[INFO] [stderr]   Downloaded magenta v0.1.1
[INFO] [stderr]   Downloaded lazycell v0.5.1
[INFO] [stderr]   Downloaded byteorder v1.1.0
[INFO] [stderr]   Downloaded iovec v0.1.0
[INFO] [stderr]   Downloaded bytes v0.4.4
[INFO] [stderr]   Downloaded tokio-core v0.1.9
[INFO] [stderr]   Downloaded net2 v0.2.30
[INFO] [stderr]   Downloaded mio v0.6.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b31b6978277ba5fc3e3a94a6a91e4a47c550a87f53ffc4a08c38f856f3b6bf3
[INFO] running `Command { std: "docker" "start" "-a" "4b31b6978277ba5fc3e3a94a6a91e4a47c550a87f53ffc4a08c38f856f3b6bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b31b6978277ba5fc3e3a94a6a91e4a47c550a87f53ffc4a08c38f856f3b6bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b31b6978277ba5fc3e3a94a6a91e4a47c550a87f53ffc4a08c38f856f3b6bf3", kill_on_drop: false }`
[INFO] [stdout] 4b31b6978277ba5fc3e3a94a6a91e4a47c550a87f53ffc4a08c38f856f3b6bf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e484f31a3764361f81aa51d37920b3e6b0b585449f0be08798596b419b80b4b9
[INFO] running `Command { std: "docker" "start" "-a" "e484f31a3764361f81aa51d37920b3e6b0b585449f0be08798596b419b80b4b9", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.29
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling lazycell v0.5.1
[INFO] [stderr]    Compiling futures v0.1.14
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.30
[INFO] [stderr]    Compiling bytes v0.4.4
[INFO] [stderr]    Compiling mio v0.6.10
[INFO] [stderr]    Compiling tokio-io v0.1.2
[INFO] [stderr]    Compiling tokio-core v0.1.9
[INFO] [stderr]    Compiling derive-getters v0.0.2
[INFO] [stderr]    Compiling message-queue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `stream`
[INFO] [stdout]  --> src/mqueue.rs:4:48
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::{Future, BoxFuture, Sink, Stream, stream};
[INFO] [stdout]   |                                                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::sync::oneshot`
[INFO] [stdout]  --> src/mqueue.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::sync::oneshot;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]  --> src/mqueue.rs:6:33
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::sync::mpsc::{self, Receiver, Sender};
[INFO] [stdout]   |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Dispenser`
[INFO] [stdout]  --> src/mqueue.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use endpoint::{self, Dispenser};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> src/endpoint.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Entry`
[INFO] [stdout]  --> src/endpoint.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use polymorphic::{Record, Entry};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     data: Box<Any + Send>,
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     data: Box<dyn Any + Send>,
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:34:20
[INFO] [stdout]    |
[INFO] [stdout] 34 |     operation: Box<Operation + Send>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     operation: Box<dyn Operation + Send>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/polymorphic.rs:55:43
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn execute(&mut self, dispenser: &mut Any);
[INFO] [stdout]    |                                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn execute(&mut self, dispenser: &mut dyn Any);
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/polymorphic.rs:72:43
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn execute(&mut self, dispenser: &mut Any) {
[INFO] [stdout]    |                                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn execute(&mut self, dispenser: &mut dyn Any) {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/polymorphic.rs:99:43
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn execute(&mut self, dispenser: &mut Any) {
[INFO] [stdout]    |                                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn execute(&mut self, dispenser: &mut dyn Any) {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<Operation + Send>)
[INFO] [stdout]    |                                              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<dyn Any + Send>, o: Box<Operation + Send>)
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:38:66
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<Operation + Send>)
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<dyn Operation + Send>)
[INFO] [stdout]    |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:48:48
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<Operation + Send>) {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<dyn Any + Send>, Box<Operation + Send>) {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:48:65
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<Operation + Send>) {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<dyn Operation + Send>) {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/mqueue.rs:130:20
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let (_, _, data, mut operation) = env.open();
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[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/polymorphic.rs:73:21
[INFO] [stdout]    |
[INFO] [stdout] 73 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
[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/polymorphic.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Yeeehaw` is never constructed
[INFO] [stdout]   --> src/mqueue.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum Message {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] 18 |     Yeeehaw,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Endpoint1` and `Endpoint2` are never constructed
[INFO] [stdout]   --> src/mqueue.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum Target {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 24 |     Endpoint1,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 25 |     Endpoint2,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Target` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num` is never read
[INFO] [stdout]   --> src/polymorphic.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Record {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 10 |     text: String,
[INFO] [stdout] 11 |     num: u64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.70s
[INFO] running `Command { std: "docker" "inspect" "e484f31a3764361f81aa51d37920b3e6b0b585449f0be08798596b419b80b4b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e484f31a3764361f81aa51d37920b3e6b0b585449f0be08798596b419b80b4b9", kill_on_drop: false }`
[INFO] [stdout] e484f31a3764361f81aa51d37920b3e6b0b585449f0be08798596b419b80b4b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4343e8debfc1acf58ad1724b4831d45ae3a1a775b39e0a0b62ae2d71bad3a7ce
[INFO] running `Command { std: "docker" "start" "-a" "4343e8debfc1acf58ad1724b4831d45ae3a1a775b39e0a0b62ae2d71bad3a7ce", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling message-queue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `stream`
[INFO] [stdout]  --> src/mqueue.rs:4:48
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::{Future, BoxFuture, Sink, Stream, stream};
[INFO] [stdout]   |                                                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::sync::oneshot`
[INFO] [stdout]  --> src/mqueue.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::sync::oneshot;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]  --> src/mqueue.rs:6:33
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::sync::mpsc::{self, Receiver, Sender};
[INFO] [stdout]   |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Dispenser`
[INFO] [stdout]  --> src/mqueue.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use endpoint::{self, Dispenser};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> src/endpoint.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Entry`
[INFO] [stdout]  --> src/endpoint.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use polymorphic::{Record, Entry};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     data: Box<Any + Send>,
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     data: Box<dyn Any + Send>,
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:34:20
[INFO] [stdout]    |
[INFO] [stdout] 34 |     operation: Box<Operation + Send>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 34 |     operation: Box<dyn Operation + Send>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/polymorphic.rs:55:43
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn execute(&mut self, dispenser: &mut Any);
[INFO] [stdout]    |                                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn execute(&mut self, dispenser: &mut dyn Any);
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/polymorphic.rs:72:43
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn execute(&mut self, dispenser: &mut Any) {
[INFO] [stdout]    |                                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn execute(&mut self, dispenser: &mut dyn Any) {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/polymorphic.rs:99:43
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn execute(&mut self, dispenser: &mut Any) {
[INFO] [stdout]    |                                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn execute(&mut self, dispenser: &mut dyn Any) {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<Operation + Send>)
[INFO] [stdout]    |                                              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<dyn Any + Send>, o: Box<Operation + Send>)
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:38:66
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<Operation + Send>)
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<dyn Operation + Send>)
[INFO] [stdout]    |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:48:48
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<Operation + Send>) {
[INFO] [stdout]    |                                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<dyn Any + Send>, Box<Operation + Send>) {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mqueue.rs:48:65
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<Operation + Send>) {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<dyn Operation + Send>) {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/mqueue.rs:130:20
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let (_, _, data, mut operation) = env.open();
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[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/polymorphic.rs:73:21
[INFO] [stdout]    |
[INFO] [stdout] 73 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
[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/polymorphic.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Yeeehaw` is never constructed
[INFO] [stdout]   --> src/mqueue.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum Message {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] 18 |     Yeeehaw,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Endpoint1` and `Endpoint2` are never constructed
[INFO] [stdout]   --> src/mqueue.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum Target {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 24 |     Endpoint1,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 25 |     Endpoint2,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Target` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num` is never read
[INFO] [stdout]   --> src/polymorphic.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Record {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 10 |     text: String,
[INFO] [stdout] 11 |     num: u64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "4343e8debfc1acf58ad1724b4831d45ae3a1a775b39e0a0b62ae2d71bad3a7ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4343e8debfc1acf58ad1724b4831d45ae3a1a775b39e0a0b62ae2d71bad3a7ce", kill_on_drop: false }`
[INFO] [stdout] 4343e8debfc1acf58ad1724b4831d45ae3a1a775b39e0a0b62ae2d71bad3a7ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 95d00f3d07c36957292fe1229cd1f0a952f6ab5c1856e280bdc0e75e9fa51e3d
[INFO] running `Command { std: "docker" "start" "-a" "95d00f3d07c36957292fe1229cd1f0a952f6ab5c1856e280bdc0e75e9fa51e3d", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused import: `stream`
[INFO] [stderr]  --> src/mqueue.rs:4:48
[INFO] [stderr]   |
[INFO] [stderr] 4 | use futures::{Future, BoxFuture, Sink, Stream, stream};
[INFO] [stderr]   |                                                ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::sync::oneshot`
[INFO] [stderr]  --> src/mqueue.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::sync::oneshot;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Receiver`
[INFO] [stderr]  --> src/mqueue.rs:6:33
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::sync::mpsc::{self, Receiver, Sender};
[INFO] [stderr]   |                                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Dispenser`
[INFO] [stderr]  --> src/mqueue.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use endpoint::{self, Dispenser};
[INFO] [stderr]   |                      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Debug`
[INFO] [stderr]  --> src/endpoint.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Entry`
[INFO] [stderr]  --> src/endpoint.rs:3:27
[INFO] [stderr]   |
[INFO] [stderr] 3 | use polymorphic::{Record, Entry};
[INFO] [stderr]   |                           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqueue.rs:33:15
[INFO] [stderr]    |
[INFO] [stderr] 33 |     data: Box<Any + Send>,
[INFO] [stderr]    |               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 33 |     data: Box<dyn Any + Send>,
[INFO] [stderr]    |               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqueue.rs:34:20
[INFO] [stderr]    |
[INFO] [stderr] 34 |     operation: Box<Operation + Send>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 34 |     operation: Box<dyn Operation + Send>,
[INFO] [stderr]    |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/polymorphic.rs:55:43
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn execute(&mut self, dispenser: &mut Any);
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn execute(&mut self, dispenser: &mut dyn Any);
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/polymorphic.rs:72:43
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn execute(&mut self, dispenser: &mut Any) {
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn execute(&mut self, dispenser: &mut dyn Any) {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/polymorphic.rs:99:43
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn execute(&mut self, dispenser: &mut Any) {
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn execute(&mut self, dispenser: &mut dyn Any) {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqueue.rs:38:46
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<Operation + Send>)
[INFO] [stderr]    |                                              ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(t: Target, m: Message, d: Box<dyn Any + Send>, o: Box<Operation + Send>)
[INFO] [stderr]    |                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqueue.rs:38:66
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<Operation + Send>)
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(t: Target, m: Message, d: Box<Any + Send>, o: Box<dyn Operation + Send>)
[INFO] [stderr]    |                                                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqueue.rs:48:48
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<Operation + Send>) {
[INFO] [stderr]    |                                                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn open(self) -> (Target, Message, Box<dyn Any + Send>, Box<Operation + Send>) {
[INFO] [stderr]    |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqueue.rs:48:65
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<Operation + Send>) {
[INFO] [stdout] 
[INFO] [stderr]    |                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn open(self) -> (Target, Message, Box<Any + Send>, Box<dyn Operation + Send>) {
[INFO] [stderr]    |                                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/mqueue.rs:130:20
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let (_, _, data, mut operation) = env.open();
[INFO] [stderr]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[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/polymorphic.rs:73:21
[INFO] [stderr]    |
[INFO] [stderr] 73 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
[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/polymorphic.rs:100:21
[INFO] [stderr]     |
[INFO] [stderr] 100 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Yeeehaw` is never constructed
[INFO] [stderr]   --> src/mqueue.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub enum Message {
[INFO] [stderr]    |          ------- variant in this enum
[INFO] [stderr] 18 |     Yeeehaw,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Endpoint1` and `Endpoint2` are never constructed
[INFO] [stderr]   --> src/mqueue.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub enum Target {
[INFO] [stderr]    |          ------ variants in this enum
[INFO] [stderr] 24 |     Endpoint1,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 25 |     Endpoint2,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Target` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `num` is never read
[INFO] [stderr]   --> src/polymorphic.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct Record {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] 10 |     text: String,
[INFO] [stderr] 11 |     num: u64,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Record` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `message-queue` (bin "message-queue" test) generated 21 warnings (run `cargo fix --bin "message-queue" --tests` to apply 17 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/message_queue-d253a6a114fd4c14)
[INFO] running `Command { std: "docker" "inspect" "95d00f3d07c36957292fe1229cd1f0a952f6ab5c1856e280bdc0e75e9fa51e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d00f3d07c36957292fe1229cd1f0a952f6ab5c1856e280bdc0e75e9fa51e3d", kill_on_drop: false }`
[INFO] [stdout] 95d00f3d07c36957292fe1229cd1f0a952f6ab5c1856e280bdc0e75e9fa51e3d
