[INFO] updating cached repository davebrent/jez
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davebrent/jez
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davebrent/jez" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/davebrent/jez"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/davebrent/jez'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davebrent/jez" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davebrent/jez"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davebrent/jez'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 157f09ef03c24b65b72a92c8d1ee717ff2016de6
[INFO] sha for GitHub repo davebrent/jez: 157f09ef03c24b65b72a92c8d1ee717ff2016de6
[INFO] validating manifest of davebrent/jez on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of davebrent/jez on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing davebrent/jez
[INFO] finished frobbing davebrent/jez
[INFO] frobbed toml for davebrent/jez written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/davebrent/jez/Cargo.toml
[INFO] started frobbing davebrent/jez
[INFO] finished frobbing davebrent/jez
[INFO] frobbed toml for davebrent/jez written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davebrent/jez/Cargo.toml
[INFO] crate davebrent/jez already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking davebrent/jez against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davebrent/jez:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 707d780f5e79cbeb18fc512525d5c04af4dde00ee07aa51781a0fcdb85bc5ca9
[INFO] running `"docker" "start" "-a" "707d780f5e79cbeb18fc512525d5c04af4dde00ee07aa51781a0fcdb85bc5ca9"`
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking rosc v0.1.5
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking jez v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/err.rs:64:32
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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/api.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     inner: Box<SinkTrait>,
[INFO] [stderr]    |                ^^^^^^^^^ help: use `dyn`: `dyn SinkTrait`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:33:38
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 | type Input = Box<FnMut() -> Option<Command>>;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> Option<Command>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:47:19
[INFO] [stderr]    |
[INFO] [stderr] 47 | type Output = Box<FnMut(Command)>;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Command)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |     inner: Vec<Box<Sink>>,
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:31:31
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(sinks: Vec<Box<Sink>>) -> CompositeSink {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:50:34
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:67:23
[INFO] [stderr]    |
[INFO] [stderr] 67 |     inner: Option<Box<Sink>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:71:26
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn new(sink: Box<Sink>) -> ThreadedSink {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:84:34
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/mod.rs:22:49
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn factory(request: &Backend) -> Result<Box<Sink>, Error> {
[INFO] [stderr]    |                                                 ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/vm/handler.rs:5:18
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Clock = Box<FnMut(Schedule<Command>)>;
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Schedule<Command>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/vm/handler.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Out = Box<FnMut(Command)>;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Command)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/err.rs:64:32
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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/api.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     inner: Box<SinkTrait>,
[INFO] [stderr]    |                ^^^^^^^^^ help: use `dyn`: `dyn SinkTrait`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:33:38
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 | type Input = Box<FnMut() -> Option<Command>>;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> Option<Command>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:47:19
[INFO] [stderr]    |
[INFO] [stderr] 47 | type Output = Box<FnMut(Command)>;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Command)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |     inner: Vec<Box<Sink>>,
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:31:31
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(sinks: Vec<Box<Sink>>) -> CompositeSink {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:50:34
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:67:23
[INFO] [stderr]    |
[INFO] [stderr] 67 |     inner: Option<Box<Sink>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:71:26
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn new(sink: Box<Sink>) -> ThreadedSink {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/sink.rs:84:34
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn devices(&self) -> Vec<Box<Device>> {
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sinks/mod.rs:22:49
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn factory(request: &Backend) -> Result<Box<Sink>, Error> {
[INFO] [stderr]    |                                                 ^^^^ help: use `dyn`: `dyn Sink`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/vm/handler.rs:5:18
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Clock = Box<FnMut(Schedule<Command>)>;
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Schedule<Command>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/vm/handler.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Out = Box<FnMut(Command)>;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Command)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm/interp/interps.rs:230:16
[INFO] [stderr]     |
[INFO] [stderr] 230 |     inner: Box<Interpreter<S>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm/interp/interps.rs:234:28
[INFO] [stderr]     |
[INFO] [stderr] 234 |     pub fn new(interp: Box<Interpreter<S>>) -> StackTraceInterpreter<S> {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/types.rs:63:26
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub effects: Vec<Box<Effect>>,
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Effect`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:33:39
[INFO] [stderr]    |
[INFO] [stderr] 33 | ) -> Result<(HashMap<u64, usize>, Box<Interpreter<SeqState>>), Error> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<SeqState>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:75:18
[INFO] [stderr]    |
[INFO] [stderr] 75 | type Timer = Box<FnMut(Schedule<Command>)>;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Schedule<Command>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:76:15
[INFO] [stderr]    |
[INFO] [stderr] 76 | type In = Box<FnMut() -> Option<Command>>;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> Option<Command>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:77:16
[INFO] [stderr]    |
[INFO] [stderr] 77 | type Out = Box<FnMut(Command)>;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Command)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:80:17
[INFO] [stderr]    |
[INFO] [stderr] 80 |     interp: Box<Interpreter<SeqState>>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<SeqState>`
[INFO] [stderr] 
[INFO] [stderr]    --> src/vm/interp/interps.rs:230:16
[INFO] [stderr]     |
[INFO] [stderr] 230 |     inner: Box<Interpreter<S>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm/interp/interps.rs:234:28
[INFO] [stderr]     |
[INFO] [stderr] 234 |     pub fn new(interp: Box<Interpreter<S>>) -> StackTraceInterpreter<S> {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/types.rs:63:26
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub effects: Vec<Box<Effect>>,
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Effect`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:33:39
[INFO] [stderr]    |
[INFO] [stderr] 33 | ) -> Result<(HashMap<u64, usize>, Box<Interpreter<SeqState>>), Error> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<SeqState>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:75:18
[INFO] [stderr]    |
[INFO] [stderr] 75 | type Timer = Box<FnMut(Schedule<Command>)>;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Schedule<Command>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:76:15
[INFO] [stderr]    |
[INFO] [stderr] 76 | type In = Box<FnMut() -> Option<Command>>;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> Option<Command>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:77:16
[INFO] [stderr]    |
[INFO] [stderr] 77 | type Out = Box<FnMut(Command)>;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Command)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:80:17
[INFO] [stderr]    |
[INFO] [stderr] 80 |     interp: Box<Interpreter<SeqState>>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Interpreter<SeqState>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.60s
[INFO] running `"docker" "inspect" "707d780f5e79cbeb18fc512525d5c04af4dde00ee07aa51781a0fcdb85bc5ca9"`
[INFO] running `"docker" "rm" "-f" "707d780f5e79cbeb18fc512525d5c04af4dde00ee07aa51781a0fcdb85bc5ca9"`
[INFO] [stdout] 707d780f5e79cbeb18fc512525d5c04af4dde00ee07aa51781a0fcdb85bc5ca9