[INFO] fetching crate zeerust 0.2.1...
[INFO] checking zeerust-0.2.1 against try#8e819ff5434466e9a823e03871a1775ac7d84ddf for pr-156027
[INFO] extracting crate zeerust 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate zeerust 0.2.1
[INFO] finished tweaking crates.io crate zeerust 0.2.1
[INFO] tweaked toml for crates.io crate zeerust 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zeerust 0.2.1 on toolchain 8e819ff5434466e9a823e03871a1775ac7d84ddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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]      Locking 55 packages to latest compatible versions
[INFO] [stderr]       Adding atty v0.2.11 (available: v0.2.14)
[INFO] [stderr]       Adding stderrlog v0.4.3 (available: v0.6.0)
[INFO] [stderr]       Adding thread_local v0.3.4 (available: v0.3.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create prepare snapshot dir: failed to create temp dir: mkdir /var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/new-2884050626: no space left on device
[INFO] checking zeerust-0.2.1 against try#8e819ff5434466e9a823e03871a1775ac7d84ddf for pr-156027
[INFO] extracting crate zeerust 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate zeerust 0.2.1
[INFO] finished tweaking crates.io crate zeerust 0.2.1
[INFO] tweaked toml for crates.io crate zeerust 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zeerust 0.2.1 on toolchain 8e819ff5434466e9a823e03871a1775ac7d84ddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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]      Locking 55 packages to latest compatible versions
[INFO] [stderr]       Adding atty v0.2.11 (available: v0.2.14)
[INFO] [stderr]       Adding stderrlog v0.4.3 (available: v0.6.0)
[INFO] [stderr]       Adding thread_local v0.3.4 (available: v0.3.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create prepare snapshot dir: failed to create temp dir: mkdir /var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/new-671981581: no space left on device
[INFO] checking zeerust-0.2.1 against try#8e819ff5434466e9a823e03871a1775ac7d84ddf for pr-156027
[INFO] extracting crate zeerust 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate zeerust 0.2.1
[INFO] finished tweaking crates.io crate zeerust 0.2.1
[INFO] tweaked toml for crates.io crate zeerust 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zeerust 0.2.1 on toolchain 8e819ff5434466e9a823e03871a1775ac7d84ddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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]      Locking 55 packages to latest compatible versions
[INFO] [stderr]       Adding atty v0.2.11 (available: v0.2.14)
[INFO] [stderr]       Adding stderrlog v0.4.3 (available: v0.6.0)
[INFO] [stderr]       Adding thread_local v0.3.4 (available: v0.3.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create prepare snapshot dir: failed to create temp dir: mkdir /var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/new-2125134851: no space left on device
[INFO] checking zeerust-0.2.1 against try#8e819ff5434466e9a823e03871a1775ac7d84ddf for pr-156027
[INFO] extracting crate zeerust 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate zeerust 0.2.1
[INFO] finished tweaking crates.io crate zeerust 0.2.1
[INFO] tweaked toml for crates.io crate zeerust 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zeerust 0.2.1 on toolchain 8e819ff5434466e9a823e03871a1775ac7d84ddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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]      Locking 55 packages to latest compatible versions
[INFO] [stderr]       Adding atty v0.2.11 (available: v0.2.14)
[INFO] [stderr]       Adding stderrlog v0.4.3 (available: v0.6.0)
[INFO] [stderr]       Adding thread_local v0.3.4 (available: v0.3.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a83a160730f3429e28659e80893fb9e483f03da0db775842c37c7f5fae73f7b
[INFO] running `Command { std: "docker" "start" "-a" "2a83a160730f3429e28659e80893fb9e483f03da0db775842c37c7f5fae73f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a83a160730f3429e28659e80893fb9e483f03da0db775842c37c7f5fae73f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a83a160730f3429e28659e80893fb9e483f03da0db775842c37c7f5fae73f7b", kill_on_drop: false }`
[INFO] [stdout] 2a83a160730f3429e28659e80893fb9e483f03da0db775842c37c7f5fae73f7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5ec4413ffee6609ef45bcdf1b244a53b42228b4e241868b23f88a7709484712
[INFO] running `Command { std: "docker" "start" "-a" "f5ec4413ffee6609ef45bcdf1b244a53b42228b4e241868b23f88a7709484712", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling enum-display-derive v0.1.1
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking zeerust v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/mod.rs:25:36
[INFO] [stdout]    |
[INFO] [stdout] 25 |     input_devices: HashMap<u8, Box<io::InputDevice>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 |     input_devices: HashMap<u8, Box<dyn io::InputDevice>>,
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/mod.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 26 |     output_devices: HashMap<u8, Box<io::OutputDevice>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/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] 26 |     output_devices: HashMap<u8, Box<dyn io::OutputDevice>>,
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/io.rs:29:60
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn install_input(&mut self, index: u8, device: Box<InputDevice>) {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/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] 29 |     pub fn install_input(&mut self, index: u8, device: Box<dyn InputDevice>) {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/io.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn install_output(&mut self, index: u8, device: Box<OutputDevice>) {
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/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] 42 |     pub fn install_output(&mut self, index: u8, device: Box<dyn OutputDevice>) {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/mod.rs:25:36
[INFO] [stdout]    |
[INFO] [stdout] 25 |     input_devices: HashMap<u8, Box<io::InputDevice>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 |     input_devices: HashMap<u8, Box<dyn io::InputDevice>>,
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/mod.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 26 |     output_devices: HashMap<u8, Box<io::OutputDevice>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/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] 26 |     output_devices: HashMap<u8, Box<dyn io::OutputDevice>>,
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/io.rs:29:60
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn install_input(&mut self, index: u8, device: Box<InputDevice>) {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/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] 29 |     pub fn install_input(&mut self, index: u8, device: Box<dyn InputDevice>) {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/z80/io.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn install_output(&mut self, index: u8, device: Box<OutputDevice>) {
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/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] 42 |     pub fn install_output(&mut self, index: u8, device: Box<dyn OutputDevice>) {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "f5ec4413ffee6609ef45bcdf1b244a53b42228b4e241868b23f88a7709484712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5ec4413ffee6609ef45bcdf1b244a53b42228b4e241868b23f88a7709484712", kill_on_drop: false }`
[INFO] [stdout] f5ec4413ffee6609ef45bcdf1b244a53b42228b4e241868b23f88a7709484712
