[INFO] fetching crate nestools 1.3.1...
[INFO] testing nestools-1.3.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate nestools 1.3.1 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate nestools 1.3.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nestools 1.3.1
[INFO] finished tweaking crates.io crate nestools 1.3.1
[INFO] tweaked toml for crates.io crate nestools 1.3.1 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 547d21bd85e3f1fe86f337a9767e343103d134932745fc506d00cda2a5e9c8f6
[INFO] running `Command { std: "docker" "start" "-a" "547d21bd85e3f1fe86f337a9767e343103d134932745fc506d00cda2a5e9c8f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "547d21bd85e3f1fe86f337a9767e343103d134932745fc506d00cda2a5e9c8f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547d21bd85e3f1fe86f337a9767e343103d134932745fc506d00cda2a5e9c8f6", kill_on_drop: false }`
[INFO] [stdout] 547d21bd85e3f1fe86f337a9767e343103d134932745fc506d00cda2a5e9c8f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09d4abb41eca022b4db99974a70d8bd7fc6876a6c8e8713480bdce3754c3480d
[INFO] running `Command { std: "docker" "start" "-a" "09d4abb41eca022b4db99974a70d8bd7fc6876a6c8e8713480bdce3754c3480d", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling rgb v0.8.31
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling lodepng v2.7.3
[INFO] [stderr]    Compiling serde_yaml v0.7.5
[INFO] [stderr]    Compiling nestools v1.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:282:46
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[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] 282 - pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[INFO] [stdout] 282 + pub fn run(config: Config) -> Result<(), Box<dyn error::Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:283:20
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let input: Box<Read> = match config.input {
[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] 283 -     let input: Box<Read> = match config.input {
[INFO] [stdout] 283 +     let input: Box<dyn Read> = match config.input {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:291:22
[INFO] [stdout]     |
[INFO] [stdout] 291 |     let mut chr: Box<Write> = match config.chr {
[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] 291 -     let mut chr: Box<Write> = match config.chr {
[INFO] [stdout] 291 +     let mut chr: Box<dyn Write> = match config.chr {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sprites/sheet.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let mut tile_number = (y * width) + x;
[INFO] [stdout]    |                     ----^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sprites/sheet.rs:132:25
[INFO] [stdout]     |
[INFO] [stdout] 132 |                     let mut tile_number = frame_offset + y_offset + x;
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.17s
[INFO] running `Command { std: "docker" "inspect" "09d4abb41eca022b4db99974a70d8bd7fc6876a6c8e8713480bdce3754c3480d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09d4abb41eca022b4db99974a70d8bd7fc6876a6c8e8713480bdce3754c3480d", kill_on_drop: false }`
[INFO] [stdout] 09d4abb41eca022b4db99974a70d8bd7fc6876a6c8e8713480bdce3754c3480d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11ba08e45ebc24637abdd51806b18e287434ff6dcfb1803075bb82738c0d1893
[INFO] running `Command { std: "docker" "start" "-a" "11ba08e45ebc24637abdd51806b18e287434ff6dcfb1803075bb82738c0d1893", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:282:46
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[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] 282 - pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[INFO] [stdout] 282 + pub fn run(config: Config) -> Result<(), Box<dyn error::Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:283:20
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let input: Box<Read> = match config.input {
[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] 283 -     let input: Box<Read> = match config.input {
[INFO] [stdout] 283 +     let input: Box<dyn Read> = match config.input {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nestools v1.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:291:22
[INFO] [stdout]     |
[INFO] [stdout] 291 |     let mut chr: Box<Write> = match config.chr {
[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] 291 -     let mut chr: Box<Write> = match config.chr {
[INFO] [stdout] 291 +     let mut chr: Box<dyn Write> = match config.chr {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sprites/sheet.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let mut tile_number = (y * width) + x;
[INFO] [stdout]    |                     ----^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sprites/sheet.rs:132:25
[INFO] [stdout]     |
[INFO] [stdout] 132 |                     let mut tile_number = frame_offset + y_offset + x;
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:282:46
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[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] 282 - pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[INFO] [stdout] 282 + pub fn run(config: Config) -> Result<(), Box<dyn error::Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:283:20
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let input: Box<Read> = match config.input {
[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] 283 -     let input: Box<Read> = match config.input {
[INFO] [stdout] 283 +     let input: Box<dyn Read> = match config.input {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binaries/spritesheetc.rs:291:22
[INFO] [stdout]     |
[INFO] [stdout] 291 |     let mut chr: Box<Write> = match config.chr {
[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] 291 -     let mut chr: Box<Write> = match config.chr {
[INFO] [stdout] 291 +     let mut chr: Box<dyn Write> = match config.chr {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sprites/sheet.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let mut tile_number = (y * width) + x;
[INFO] [stdout]    |                     ----^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sprites/sheet.rs:132:25
[INFO] [stdout]     |
[INFO] [stdout] 132 |                     let mut tile_number = frame_offset + y_offset + x;
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "11ba08e45ebc24637abdd51806b18e287434ff6dcfb1803075bb82738c0d1893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ba08e45ebc24637abdd51806b18e287434ff6dcfb1803075bb82738c0d1893", kill_on_drop: false }`
[INFO] [stdout] 11ba08e45ebc24637abdd51806b18e287434ff6dcfb1803075bb82738c0d1893
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 894d1fb8c1ff539d9cab092f5ccbb636ef23d1f63b68b328d00e42cf42d639e5
[INFO] running `Command { std: "docker" "start" "-a" "894d1fb8c1ff539d9cab092f5ccbb636ef23d1f63b68b328d00e42cf42d639e5", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binaries/spritesheetc.rs:282:46
[INFO] [stderr]     |
[INFO] [stderr] 282 | pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[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] 282 - pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[INFO] [stderr] 282 + pub fn run(config: Config) -> Result<(), Box<dyn error::Error>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binaries/spritesheetc.rs:283:20
[INFO] [stderr]     |
[INFO] [stderr] 283 |     let input: Box<Read> = match config.input {
[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] 283 -     let input: Box<Read> = match config.input {
[INFO] [stderr] 283 +     let input: Box<dyn Read> = match config.input {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binaries/spritesheetc.rs:291:22
[INFO] [stderr]     |
[INFO] [stderr] 291 |     let mut chr: Box<Write> = match config.chr {
[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] 291 -     let mut chr: Box<Write> = match config.chr {
[INFO] [stderr] 291 +     let mut chr: Box<dyn Write> = match config.chr {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sprites/sheet.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 let mut tile_number = (y * width) + x;
[INFO] [stderr]    |                     ----^^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sprites/sheet.rs:132:25
[INFO] [stderr]     |
[INFO] [stderr] 132 |                     let mut tile_number = frame_offset + y_offset + x;
[INFO] [stderr]     |                         ----^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `nestools` (lib) generated 5 warnings
[INFO] [stderr] warning: `nestools` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nestools-9a9501e149a08f31)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/spritesheetc-7e869804d81d9c2a)
[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] [stderr]    Doc-tests nestools
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/sprites/mod.rs - sprites::Tile::iter (line 70) ... ok
[INFO] [stdout] test src/sprites/mod.rs - sprites::Tile::from_bytes (line 117) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "894d1fb8c1ff539d9cab092f5ccbb636ef23d1f63b68b328d00e42cf42d639e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "894d1fb8c1ff539d9cab092f5ccbb636ef23d1f63b68b328d00e42cf42d639e5", kill_on_drop: false }`
[INFO] [stdout] 894d1fb8c1ff539d9cab092f5ccbb636ef23d1f63b68b328d00e42cf42d639e5