[INFO] cloning repository https://github.com/JohnHMoses/rBoy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JohnHMoses/rBoy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnHMoses%2FrBoy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnHMoses%2FrBoy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 930180c1b77773234c5caf153c9757860758263f
[INFO] testing JohnHMoses/rBoy against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnHMoses%2FrBoy" "/workspace/builds/worker-70/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-70/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JohnHMoses/rBoy on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JohnHMoses/rBoy
[INFO] finished tweaking git repo https://github.com/JohnHMoses/rBoy
[INFO] tweaked toml for git repo https://github.com/JohnHMoses/rBoy written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate git repo https://github.com/JohnHMoses/rBoy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2dec105ee0face0fb531217abc2f1facbca528304f09785556bd7080340c2dd7
[INFO] running `Command { std: "docker" "start" "-a" "2dec105ee0face0fb531217abc2f1facbca528304f09785556bd7080340c2dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dec105ee0face0fb531217abc2f1facbca528304f09785556bd7080340c2dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dec105ee0face0fb531217abc2f1facbca528304f09785556bd7080340c2dd7", kill_on_drop: false }`
[INFO] [stdout] 2dec105ee0face0fb531217abc2f1facbca528304f09785556bd7080340c2dd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 894289b011d9c9e9a70a4f142e8cb73d7da9bdb1771ce3925d9e431e4a28d59a
[INFO] running `Command { std: "docker" "start" "-a" "894289b011d9c9e9a70a4f142e8cb73d7da9bdb1771ce3925d9e431e4a28d59a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::ByteAddressable`
[INFO] [stdout]  --> src/memory/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::ByteAddressable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ByteReference`
[INFO] [stdout]  --> src/memory/tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::ByteReference;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Memory`
[INFO] [stdout]  --> src/memory/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::Memory;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::WordAddressable`
[INFO] [stdout]  --> src/memory/tests.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::WordAddressable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::WordReference`
[INFO] [stdout]  --> src/memory/tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::WordReference;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout] 37 +     lower: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     upper: Box<ByteAddressable + 'a>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     upper: Box<ByteAddressable + 'a>,
[INFO] [stdout] 38 +     upper: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<dyn ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<dyn ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:60
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<dyn ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:87
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<dyn ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new(value: &'a mut u8) -> ByteReference<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Memory`
[INFO] [stdout]   --> src/memory/mod.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct Memory {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new() -> Memory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_ref`
[INFO] [stdout]   --> src/memory/mod.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&'a mut self, address: u16) -> WordReference {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_byte_refs`
[INFO] [stdout]   --> src/memory/mod.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ByteAddressable`
[INFO] [stdout]  --> src/memory/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::ByteAddressable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ByteReference`
[INFO] [stdout]  --> src/memory/tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::ByteReference;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Memory`
[INFO] [stdout]  --> src/memory/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::Memory;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::WordAddressable`
[INFO] [stdout]  --> src/memory/tests.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::WordAddressable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::WordReference`
[INFO] [stdout]  --> src/memory/tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::WordReference;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout] 37 +     lower: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     upper: Box<ByteAddressable + 'a>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     upper: Box<ByteAddressable + 'a>,
[INFO] [stdout] 38 +     upper: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<dyn ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<dyn ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:60
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<dyn ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:87
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<dyn ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new(value: &'a mut u8) -> ByteReference<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Memory`
[INFO] [stdout]   --> src/memory/mod.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct Memory {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new() -> Memory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_ref`
[INFO] [stdout]   --> src/memory/mod.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&'a mut self, address: u16) -> WordReference {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_byte_refs`
[INFO] [stdout]   --> src/memory/mod.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "894289b011d9c9e9a70a4f142e8cb73d7da9bdb1771ce3925d9e431e4a28d59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "894289b011d9c9e9a70a4f142e8cb73d7da9bdb1771ce3925d9e431e4a28d59a", kill_on_drop: false }`
[INFO] [stdout] 894289b011d9c9e9a70a4f142e8cb73d7da9bdb1771ce3925d9e431e4a28d59a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cec9339509478fc43b6f9785eebde1fea72d64506a19d7c65de3f398730be498
[INFO] running `Command { std: "docker" "start" "-a" "cec9339509478fc43b6f9785eebde1fea72d64506a19d7c65de3f398730be498", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::ByteAddressable`
[INFO] [stdout]  --> src/memory/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::ByteAddressable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ByteReference`
[INFO] [stdout]  --> src/memory/tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::ByteReference;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Memory`
[INFO] [stdout]  --> src/memory/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::Memory;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::WordAddressable`
[INFO] [stdout]  --> src/memory/tests.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::WordAddressable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::WordReference`
[INFO] [stdout]  --> src/memory/tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::WordReference;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout] 37 +     lower: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     upper: Box<ByteAddressable + 'a>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     upper: Box<ByteAddressable + 'a>,
[INFO] [stdout] 38 +     upper: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<dyn ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<dyn ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:60
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<dyn ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:87
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<dyn ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new(value: &'a mut u8) -> ByteReference<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Memory`
[INFO] [stdout]   --> src/memory/mod.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct Memory {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory/mod.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new() -> Memory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_ref`
[INFO] [stdout]   --> src/memory/mod.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&'a mut self, address: u16) -> WordReference {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_byte_refs`
[INFO] [stdout]   --> src/memory/mod.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout] 37 +     lower: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     upper: Box<ByteAddressable + 'a>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     upper: Box<ByteAddressable + 'a>,
[INFO] [stdout] 38 +     upper: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<dyn ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<dyn ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:60
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<dyn ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:87
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<dyn ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     lower: Box<ByteAddressable + 'a>,
[INFO] [stdout] 37 +     lower: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     upper: Box<ByteAddressable + 'a>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 -     upper: Box<ByteAddressable + 'a>,
[INFO] [stdout] 38 +     upper: Box<dyn ByteAddressable + 'a>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<dyn ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:42:57
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout] 42 +     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<dyn ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:60
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<dyn ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:84:87
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stdout] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<dyn ByteAddressable + 'a>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `Command { std: "docker" "inspect" "cec9339509478fc43b6f9785eebde1fea72d64506a19d7c65de3f398730be498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec9339509478fc43b6f9785eebde1fea72d64506a19d7c65de3f398730be498", kill_on_drop: false }`
[INFO] [stdout] cec9339509478fc43b6f9785eebde1fea72d64506a19d7c65de3f398730be498
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bb76352c6371fd114e30702bcc59487c9b0a67467c8563c8ab751031fd65baeb
[INFO] running `Command { std: "docker" "start" "-a" "bb76352c6371fd114e30702bcc59487c9b0a67467c8563c8ab751031fd65baeb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `super::ByteAddressable`
[INFO] [stdout] 
[INFO] [stderr]  --> src/memory/tests.rs:1:5
[INFO] [stdout] running 7 tests
[INFO] [stderr]   |
[INFO] [stdout] test memory::tests::byte_reference_can_read_value ... ok
[INFO] [stderr] 1 | use super::ByteAddressable;
[INFO] [stdout] test memory::tests::byte_reference_can_write_value ... ok
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test memory::tests::word_reference_can_read_value ... ok
[INFO] [stderr]   |
[INFO] [stdout] test memory::tests::word_reference_can_write_value ... ok
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] test memory::tests::memory_can_make_read_write_references ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::hello_world ... ok
[INFO] [stderr] warning: unused import: `super::ByteReference`
[INFO] [stdout] test memory::tests::memory_refs_can_overlap ... ok
[INFO] [stderr]  --> src/memory/tests.rs:2:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 2 | use super::ByteReference;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] warning: unused import: `super::Memory`
[INFO] [stderr]  --> src/memory/tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::Memory;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::WordAddressable`
[INFO] [stderr]  --> src/memory/tests.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::WordAddressable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::WordReference`
[INFO] [stderr]  --> src/memory/tests.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::WordReference;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/memory/mod.rs:37:16
[INFO] [stderr]    |
[INFO] [stderr] 37 |     lower: Box<ByteAddressable + 'a>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 37 -     lower: Box<ByteAddressable + 'a>,
[INFO] [stderr] 37 +     lower: Box<dyn ByteAddressable + 'a>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/memory/mod.rs:38:16
[INFO] [stderr]    |
[INFO] [stderr] 38 |     upper: Box<ByteAddressable + 'a>,
[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: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 38 -     upper: Box<ByteAddressable + 'a>,
[INFO] [stderr] 38 +     upper: Box<dyn ByteAddressable + 'a>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/memory/mod.rs:42:23
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stdout] test memory::tests::byte_reference_can_read_value ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] test memory::tests::byte_reference_can_write_value ... ok
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] test memory::tests::memory_can_make_read_write_references ... ok
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr] 42 +     fn new(lower: Box<dyn ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/memory/mod.rs:42:57
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[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: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 -     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr] 42 +     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<dyn ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/memory/mod.rs:84:60
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stderr] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<dyn ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/memory/mod.rs:84:87
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[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: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 84 -     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stderr] 84 +     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<dyn ByteAddressable + 'a>) {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new(value: &'a mut u8) -> ByteReference<'a> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Memory`
[INFO] [stderr]   --> src/memory/mod.rs:68:8
[INFO] [stderr]    |
[INFO] [stderr] 68 | struct Memory {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:73:12
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn new() -> Memory {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_ref`
[INFO] [stderr]   --> src/memory/mod.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_ref(&'a mut self, address: u16) -> WordReference {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_byte_refs`
[INFO] [stderr]   --> src/memory/mod.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rboy` (lib) generated 17 warnings
[INFO] [stderr] warning: `rboy` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr] warning: `rboy` (bin "rboy" test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 59.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rboy-1508edbc56b378dd)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rboy-779a40050be6eaf0)
[INFO] [stdout] test memory::tests::word_reference_can_read_value ... ok
[INFO] [stdout] test memory::tests::memory_refs_can_overlap ... ok
[INFO] [stdout] test memory::tests::word_reference_can_write_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rboy
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb76352c6371fd114e30702bcc59487c9b0a67467c8563c8ab751031fd65baeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb76352c6371fd114e30702bcc59487c9b0a67467c8563c8ab751031fd65baeb", kill_on_drop: false }`
[INFO] [stdout] bb76352c6371fd114e30702bcc59487c9b0a67467c8563c8ab751031fd65baeb