[INFO] cloning repository https://github.com/Ruin0x11/josette
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ruin0x11/josette" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRuin0x11%2Fjosette", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRuin0x11%2Fjosette'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0c5bf30825c1245cca668e2c2e2a6b906ef5857
[INFO] checking Ruin0x11/josette against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRuin0x11%2Fjosette" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ruin0x11/josette
[INFO] finished tweaking git repo https://github.com/Ruin0x11/josette
[INFO] tweaked toml for git repo https://github.com/Ruin0x11/josette written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ruin0x11/josette on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ruin0x11/josette already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5895107030ca89187d5bd37f8f5fb6251f1d389a204ca77768581ea37b61e76
[INFO] running `Command { std: "docker" "start" "-a" "a5895107030ca89187d5bd37f8f5fb6251f1d389a204ca77768581ea37b61e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5895107030ca89187d5bd37f8f5fb6251f1d389a204ca77768581ea37b61e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5895107030ca89187d5bd37f8f5fb6251f1d389a204ca77768581ea37b61e76", kill_on_drop: false }`
[INFO] [stdout] a5895107030ca89187d5bd37f8f5fb6251f1d389a204ca77768581ea37b61e76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e67a67ac2e3281c21d2daf2db7bf290438f8ceb087c1ea41c8baf08269aa9151
[INFO] running `Command { std: "docker" "start" "-a" "e67a67ac2e3281c21d2daf2db7bf290438f8ceb087c1ea41c8baf08269aa9151", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking lebe v0.5.1
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking tribool v0.3.0
[INFO] [stderr]     Checking rgb v0.8.32
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.22
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking const_format v0.2.24
[INFO] [stderr]     Checking jpeg-decoder v0.2.6
[INFO] [stderr]     Checking tiff v0.7.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking pin-project v1.0.11
[INFO] [stderr]     Checking flume v0.10.13
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking exr v1.4.2
[INFO] [stderr]     Checking hexyl v0.10.0
[INFO] [stderr]     Checking image v0.24.2
[INFO] [stderr]     Checking josette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/convert.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |             let x = (i as u32 % width);
[INFO] [stdout]     |                     ^                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 256 -             let x = (i as u32 % width);
[INFO] [stdout] 256 +             let x = i as u32 % width ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/convert.rs:257:21
[INFO] [stdout]     |
[INFO] [stdout] 257 |             let y = (i as u32 / width);
[INFO] [stdout]     |                     ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 257 -             let y = (i as u32 / width);
[INFO] [stdout] 257 +             let y = i as u32 / width ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/convert.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |             let x = (i as u32 % width);
[INFO] [stdout]     |                     ^                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 256 -             let x = (i as u32 % width);
[INFO] [stdout] 256 +             let x = i as u32 % width ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/convert.rs:257:21
[INFO] [stdout]     |
[INFO] [stdout] 257 |             let y = (i as u32 / width);
[INFO] [stdout]     |                     ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 257 -             let y = (i as u32 / width);
[INFO] [stdout] 257 +             let y = i as u32 / width ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spi`
[INFO] [stdout]    --> src/convert.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 | fn get_spi_size(spi: &Spi, decompressed: &[u8]) -> (u32, u32) {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_spi`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `i` is assigned to, but never used
[INFO] [stdout]    --> src/convert.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let mut i = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_i` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/convert.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         i += 1;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spi`
[INFO] [stdout]    --> src/convert.rs:244:43
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn write_spi_partial(img: &mut RgbaImage, spi: &Spi, decompressed: &[u8], palette: &Palette, px: u32, py: u32) {
[INFO] [stdout]     |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_spi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `i` is assigned to, but never used
[INFO] [stdout]    --> src/convert.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     let mut i = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_i` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/convert.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |         i += 1;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spi`
[INFO] [stdout]    --> src/convert.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 | fn get_spi_size(spi: &Spi, decompressed: &[u8]) -> (u32, u32) {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_spi`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `i` is assigned to, but never used
[INFO] [stdout]    --> src/convert.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let mut i = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_i` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/convert.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         i += 1;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]    --> src/convert.rs:315:17
[INFO] [stdout]     |
[INFO] [stdout] 315 |         let (w, h) = get_spi_size(spi, &decomp);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spi`
[INFO] [stdout]    --> src/convert.rs:244:43
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn write_spi_partial(img: &mut RgbaImage, spi: &Spi, decompressed: &[u8], palette: &Palette, px: u32, py: u32) {
[INFO] [stdout]     |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_spi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `i` is assigned to, but never used
[INFO] [stdout]    --> src/convert.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     let mut i = 0;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_i` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/convert.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |         i += 1;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]    --> src/convert.rs:315:17
[INFO] [stdout]     |
[INFO] [stdout] 315 |         let (w, h) = get_spi_size(spi, &decomp);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spi_offset` is never read
[INFO] [stdout]    --> src/obj.rs:157:30
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let mut spi_offset = 0;
[INFO] [stdout]     |                              ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spi_offset` is never read
[INFO] [stdout]    --> src/obj.rs:157:30
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let mut spi_offset = 0;
[INFO] [stdout]     |                              ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Path to Wonder Project J2 ROM (.z64)
[INFO] [stdout] 30 | |     rompath: PathBuf,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// Output path
[INFO] [stdout] 33 | |     outpath: PathBuf,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     obj::parse_objinfos(&args, &buffer);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let _ = obj::parse_objinfos(&args, &buffer);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/obj.rs:214:17
[INFO] [stdout]     |
[INFO] [stdout] 214 |                 crate::convert::write_spi1_png(&args, &decomp, spi, palette, i as u32);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 214 |                 let _ = crate::convert::write_spi1_png(&args, &decomp, spi, palette, i as u32);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Path to Wonder Project J2 ROM (.z64)
[INFO] [stdout] 30 | |     rompath: PathBuf,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// Output path
[INFO] [stdout] 33 | |     outpath: PathBuf,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     obj::parse_objinfos(&args, &buffer);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let _ = obj::parse_objinfos(&args, &buffer);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/obj.rs:214:17
[INFO] [stdout]     |
[INFO] [stdout] 214 |                 crate::convert::write_spi1_png(&args, &decomp, spi, palette, i as u32);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 214 |                 let _ = crate::convert::write_spi1_png(&args, &decomp, spi, palette, i as u32);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `josette` (bin "josette") due to 2 previous errors; 12 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `josette` (bin "josette" test) due to 2 previous errors; 12 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e67a67ac2e3281c21d2daf2db7bf290438f8ceb087c1ea41c8baf08269aa9151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e67a67ac2e3281c21d2daf2db7bf290438f8ceb087c1ea41c8baf08269aa9151", kill_on_drop: false }`
[INFO] [stdout] e67a67ac2e3281c21d2daf2db7bf290438f8ceb087c1ea41c8baf08269aa9151
