[INFO] cloning repository https://github.com/Lut99/sudoku-solver-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lut99/sudoku-solver-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLut99%2Fsudoku-solver-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLut99%2Fsudoku-solver-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 248dd359086a1d0b3e8628a1a9db819401edd276
[INFO] checking Lut99/sudoku-solver-rs 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%2FLut99%2Fsudoku-solver-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lut99/sudoku-solver-rs
[INFO] finished tweaking git repo https://github.com/Lut99/sudoku-solver-rs
[INFO] tweaked toml for git repo https://github.com/Lut99/sudoku-solver-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lut99/sudoku-solver-rs 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/Lut99/sudoku-solver-rs 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58b52452938c05298d1e0687652714639517344181b5fefff8a69eb1b7857df4
[INFO] running `Command { std: "docker" "start" "-a" "58b52452938c05298d1e0687652714639517344181b5fefff8a69eb1b7857df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58b52452938c05298d1e0687652714639517344181b5fefff8a69eb1b7857df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58b52452938c05298d1e0687652714639517344181b5fefff8a69eb1b7857df4", kill_on_drop: false }`
[INFO] [stdout] 58b52452938c05298d1e0687652714639517344181b5fefff8a69eb1b7857df4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -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] 6d75d4a59455200e0b4b153e4cdffc78ea6a297cc19dc42222ec0e420e77e614
[INFO] running `Command { std: "docker" "start" "-a" "6d75d4a59455200e0b4b153e4cdffc78ea6a297cc19dc42222ec0e420e77e614", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling indoc v2.0.3
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking console v0.15.7
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[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook v0.3.17
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking clap_builder v4.3.21
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.26.1
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking ratatui v0.22.0
[INFO] [stderr]     Checking humanlog v0.1.0 (https://github.com/Lut99/humanlog-rs#3c7a024d)
[INFO] [stderr]    Compiling enum-debug-derive v0.2.0 (https://github.com/Lut99/enum-debug#37066f5d)
[INFO] [stderr]     Checking enum-debug v0.2.0 (https://github.com/Lut99/enum-debug#37066f5d)
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]     Checking clap v4.3.21
[INFO] [stderr]     Checking sudoku-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<Sudoku>, Infallible>
[INFO] [stdout]   --> src/solvers.rs:64:51
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn run(&mut self, sudoku: Sudoku) -> Sudoku { self.run_with_callback(sudoku, |_| Ok::<bool, std::convert::Infallible>(true)).unwrap()...
[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<bool, Infallible>
[INFO] [stdout]   --> src/solvers.rs:64:86
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn run(&mut self, sudoku: Sudoku) -> Sudoku { self.run_with_callback(sudoku, |_| Ok::<bool, std::convert::Infallible>(true)).unwrap()...
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/sudoku.rs:420:21
[INFO] [stdout]     |
[INFO] [stdout] 420 |     pub fn coloured(&self) -> SudokuColourFormatter { SudokuColourFormatter { sudoku: self } }
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 420 |     pub fn coloured(&self) -> SudokuColourFormatter<'_> { SudokuColourFormatter { sudoku: self } }
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/sudoku.rs:439:19
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn render(&self) -> Table {
[INFO] [stdout]     |                   ^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn render(&self) -> Table<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils.rs:909:15
[INFO] [stdout]     |
[INFO] [stdout] 909 |     fn pretty(&self) -> PrettyErrorFormatter<Self>;
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 909 |     fn pretty(&self) -> PrettyErrorFormatter<'_, Self>;
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils.rs:912:15
[INFO] [stdout]     |
[INFO] [stdout] 912 |     fn pretty(&self) -> PrettyErrorFormatter<Self> {
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 912 |     fn pretty(&self) -> PrettyErrorFormatter<'_, Self> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku-solver` (lib) due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<sudoku::Sudoku>, Infallible>
[INFO] [stdout]   --> src/solvers.rs:64:51
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn run(&mut self, sudoku: Sudoku) -> Sudoku { self.run_with_callback(sudoku, |_| Ok::<bool, std::convert::Infallible>(true)).unwrap()...
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku-solver` (lib test) due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/solvers.rs:64:86
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn run(&mut self, sudoku: Sudoku) -> Sudoku { self.run_with_callback(sudoku, |_| Ok::<bool, std::convert::Infallible>(true)).unwrap()...
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/sudoku.rs:420:21
[INFO] [stdout]     |
[INFO] [stdout] 420 |     pub fn coloured(&self) -> SudokuColourFormatter { SudokuColourFormatter { sudoku: self } }
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 420 |     pub fn coloured(&self) -> SudokuColourFormatter<'_> { SudokuColourFormatter { sudoku: self } }
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/sudoku.rs:439:19
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn render(&self) -> Table {
[INFO] [stdout]     |                   ^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn render(&self) -> Table<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils.rs:909:15
[INFO] [stdout]     |
[INFO] [stdout] 909 |     fn pretty(&self) -> PrettyErrorFormatter<Self>;
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 909 |     fn pretty(&self) -> PrettyErrorFormatter<'_, Self>;
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils.rs:912:15
[INFO] [stdout]     |
[INFO] [stdout] 912 |     fn pretty(&self) -> PrettyErrorFormatter<Self> {
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 912 |     fn pretty(&self) -> PrettyErrorFormatter<'_, Self> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6d75d4a59455200e0b4b153e4cdffc78ea6a297cc19dc42222ec0e420e77e614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d75d4a59455200e0b4b153e4cdffc78ea6a297cc19dc42222ec0e420e77e614", kill_on_drop: false }`
[INFO] [stdout] 6d75d4a59455200e0b4b153e4cdffc78ea6a297cc19dc42222ec0e420e77e614
