[INFO] fetching crate owlchess 0.4.0...
[INFO] checking owlchess-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate owlchess 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate owlchess 0.4.0
[INFO] finished tweaking crates.io crate owlchess 0.4.0
[INFO] tweaked toml for crates.io crate owlchess 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate owlchess 0.4.0 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 crates.io crate owlchess 0.4.0 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 164b633addb9dbd55371506bd2d11f0d8bd7b6b5a310143fd1f388654bb58fb2
[INFO] running `Command { std: "docker" "start" "-a" "164b633addb9dbd55371506bd2d11f0d8bd7b6b5a310143fd1f388654bb58fb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "164b633addb9dbd55371506bd2d11f0d8bd7b6b5a310143fd1f388654bb58fb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "164b633addb9dbd55371506bd2d11f0d8bd7b6b5a310143fd1f388654bb58fb2", kill_on_drop: false }`
[INFO] [stdout] 164b633addb9dbd55371506bd2d11f0d8bd7b6b5a310143fd1f388654bb58fb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] eb2c26a6033509446ab2c16af2a7357484d172d40fd7a9b7491b5ead3da97375
[INFO] running `Command { std: "docker" "start" "-a" "eb2c26a6033509446ab2c16af2a7357484d172d40fd7a9b7491b5ead3da97375", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking clap_builder v4.3.21
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v4.3.21
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]    Compiling owlchess_base v0.4.0
[INFO] [stderr]    Compiling owlchess v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `MakeMoveImpl` is never used
[INFO] [stdout]    --> src/moves/base.rs:558:7
[INFO] [stdout]     |
[INFO] [stdout] 558 | trait MakeMoveImpl {
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(base::Move, base::RawUndo), Infallible>
[INFO] [stdout]   --> src/moves/make.rs:74:81
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn make_raw(&self, board: &mut Board) -> Result<(Move, RawUndo), Self::Err> {
[INFO] [stdout]    |  _________________________________________________________________________________^
[INFO] [stdout] 75 | |         let undo = unsafe { base::make_move_unchecked(board, self.0) };
[INFO] [stdout] 76 | |         Ok((self.0, undo))
[INFO] [stdout] 77 | |     }
[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<(base::Move, base::RawUndo), Infallible>
[INFO] [stdout]   --> src/moves/make.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         Ok((self.0, undo))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `owlchess` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait `MakeMoveImpl` is never used
[INFO] [stdout]    --> src/moves/base.rs:558:7
[INFO] [stdout]     |
[INFO] [stdout] 558 | trait MakeMoveImpl {
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(moves::base::Move, moves::base::RawUndo), Infallible>
[INFO] [stdout]   --> src/moves/make.rs:74:81
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn make_raw(&self, board: &mut Board) -> Result<(Move, RawUndo), Self::Err> {
[INFO] [stdout]    |  _________________________________________________________________________________^
[INFO] [stdout] 75 | |         let undo = unsafe { base::make_move_unchecked(board, self.0) };
[INFO] [stdout] 76 | |         Ok((self.0, undo))
[INFO] [stdout] 77 | |     }
[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<(moves::base::Move, moves::base::RawUndo), Infallible>
[INFO] [stdout]   --> src/moves/make.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         Ok((self.0, undo))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `owlchess` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "eb2c26a6033509446ab2c16af2a7357484d172d40fd7a9b7491b5ead3da97375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb2c26a6033509446ab2c16af2a7357484d172d40fd7a9b7491b5ead3da97375", kill_on_drop: false }`
[INFO] [stdout] eb2c26a6033509446ab2c16af2a7357484d172d40fd7a9b7491b5ead3da97375