[INFO] cloning repository https://github.com/AilPhaune/kformat_macros
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AilPhaune/kformat_macros" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAilPhaune%2Fkformat_macros", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAilPhaune%2Fkformat_macros'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b532862ad16cb24b25c041903a7ddd0ead6695d2
[INFO] checking AilPhaune/kformat_macros 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%2FAilPhaune%2Fkformat_macros" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AilPhaune/kformat_macros
[INFO] finished tweaking git repo https://github.com/AilPhaune/kformat_macros
[INFO] tweaked toml for git repo https://github.com/AilPhaune/kformat_macros written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AilPhaune/kformat_macros 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/AilPhaune/kformat_macros 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5a9c0eb47aecd258724c12d202af544d057febc1cf76f729dcbbdf34eba2d794
[INFO] running `Command { std: "docker" "start" "-a" "5a9c0eb47aecd258724c12d202af544d057febc1cf76f729dcbbdf34eba2d794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a9c0eb47aecd258724c12d202af544d057febc1cf76f729dcbbdf34eba2d794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a9c0eb47aecd258724c12d202af544d057febc1cf76f729dcbbdf34eba2d794", kill_on_drop: false }`
[INFO] [stdout] 5a9c0eb47aecd258724c12d202af544d057febc1cf76f729dcbbdf34eba2d794
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8365de47c0fc538e5ec2a308975a1754bb649eda36a19b40db3f2fc0b2c949bd
[INFO] running `Command { std: "docker" "start" "-a" "8365de47c0fc538e5ec2a308975a1754bb649eda36a19b40db3f2fc0b2c949bd", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking proc-macro2 v1.0.94
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking kformat_macros v0.1.1 (/opt/rustwide/workdir/kformat_macros)
[INFO] [stderr]     Checking kformat_example v0.1.0 (/opt/rustwide/workdir/kformat_example)
[INFO] [stderr]     Checking kformat_default_nostd v0.1.0 (/opt/rustwide/workdir/kformat_default_nostd)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:44:37
[INFO] [stdout]    |
[INFO] [stdout] 44 |       ) -> Result<usize, FormatError> {
[INFO] [stdout]    |  _____________________________________^
[INFO] [stdout] 45 | |         for c in self.iter() {
[INFO] [stdout] 46 | |             match writer.write(*c) {
[INFO] [stdout] 47 | |                 Ok(_) => {}
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | |         Ok(self.len())
[INFO] [stdout] 52 | |     }
[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<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:48:34
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(e) => return Err(FormatError::Write(e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Ok(self.len())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:64:37
[INFO] [stdout]    |
[INFO] [stdout] 64 |       ) -> Result<usize, FormatError> {
[INFO] [stdout]    |  _____________________________________^
[INFO] [stdout] 65 | |         let mut count = 0;
[INFO] [stdout] 66 | |         for c in self.chars() {
[INFO] [stdout] 67 | |             match writer.write(c) {
[INFO] [stdout] ...  |
[INFO] [stdout] 74 | |         Ok(count)
[INFO] [stdout] 75 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 Err(e) => return Err(FormatError::Write(e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         Ok(count)
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `kwrite_to_raw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kformat_example` (bin "kformat_example" test) due to 22 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:44:37
[INFO] [stdout]    |
[INFO] [stdout] 44 |       ) -> Result<usize, FormatError> {
[INFO] [stdout]    |  _____________________________________^
[INFO] [stdout] 45 | |         for c in self.iter() {
[INFO] [stdout] 46 | |             match writer.write(*c) {
[INFO] [stdout] 47 | |                 Ok(_) => {}
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | |         Ok(self.len())
[INFO] [stdout] 52 | |     }
[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<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:48:34
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 Err(e) => return Err(FormatError::Write(e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Ok(self.len())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:64:37
[INFO] [stdout]    |
[INFO] [stdout] 64 |       ) -> Result<usize, FormatError> {
[INFO] [stdout]    |  _____________________________________^
[INFO] [stdout] 65 | |         let mut count = 0;
[INFO] [stdout] 66 | |         for c in self.chars() {
[INFO] [stdout] 67 | |             match writer.write(c) {
[INFO] [stdout] ...  |
[INFO] [stdout] 74 | |         Ok(count)
[INFO] [stdout] 75 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 Err(e) => return Err(FormatError::Write(e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         Ok(count)
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `kwrite_to_raw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, FormatError>, usize>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `write_single` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, FormatError>
[INFO] [stdout]   --> kformat_example/src/main.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |       let amount = kwrite_to_raw!(
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 88 | |         console,
[INFO] [stdout] 89 | |         Formattable,
[INFO] [stdout] 90 | |         write,
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |         actual_data2
[INFO] [stdout] 98 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kformat_example` (bin "kformat_example") due to 22 previous errors
[INFO] running `Command { std: "docker" "inspect" "8365de47c0fc538e5ec2a308975a1754bb649eda36a19b40db3f2fc0b2c949bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8365de47c0fc538e5ec2a308975a1754bb649eda36a19b40db3f2fc0b2c949bd", kill_on_drop: false }`
[INFO] [stdout] 8365de47c0fc538e5ec2a308975a1754bb649eda36a19b40db3f2fc0b2c949bd
