[INFO] cloning repository https://github.com/printfn/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/printfn/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprintfn%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprintfn%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed483ab79ca868e61c6e34ad46be83b0556e9d17
[INFO] checking printfn/chess against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprintfn%2Fchess" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/printfn/chess on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/printfn/chess
[INFO] finished tweaking git repo https://github.com/printfn/chess
[INFO] tweaked toml for git repo https://github.com/printfn/chess written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/printfn/chess 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console-api v0.6.0
[INFO] [stderr]   Downloaded console-subscriber v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fe04014a308b2cf56301d4d78d5d0f05c82bc360e537967eb3080671e6dd4ec
[INFO] running `Command { std: "docker" "start" "-a" "6fe04014a308b2cf56301d4d78d5d0f05c82bc360e537967eb3080671e6dd4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fe04014a308b2cf56301d4d78d5d0f05c82bc360e537967eb3080671e6dd4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe04014a308b2cf56301d4d78d5d0f05c82bc360e537967eb3080671e6dd4ec", kill_on_drop: false }`
[INFO] [stdout] 6fe04014a308b2cf56301d4d78d5d0f05c82bc360e537967eb3080671e6dd4ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e03096b95a8431f1c3b7fa0f21e3767548b9414b7b0b65720a02482d82400ec
[INFO] running `Command { std: "docker" "start" "-a" "3e03096b95a8431f1c3b7fa0f21e3767548b9414b7b0b65720a02482d82400ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking memchr v2.7.1
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[INFO] [stderr]     Checking itoa v1.0.10
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[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling async-trait v0.1.78
[INFO] [stderr]    Compiling chess-core v0.1.0 (/opt/rustwide/workdir/core)
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking chrono v0.4.35
[INFO] [stderr]     Checking fern v0.6.2
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling prost-derive v0.12.3
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking axum-core v0.3.4
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking prost v0.12.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking prost-types v0.12.3
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> core/src/board/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use alloc::string::ToString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]    --> core/src/rank.rs:125:6
[INFO] [stdout]     |
[INFO] [stdout] 125 |     use alloc::string::ToString;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.25
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking wasm v0.1.0 (/opt/rustwide/workdir/wasm)
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking tonic v0.10.2
[INFO] [stderr]     Checking console-api v0.6.0
[INFO] [stderr]     Checking console-subscriber v0.2.0
[INFO] [stderr]     Checking lichess v0.1.0 (/opt/rustwide/workdir/lichess)
[INFO] [stdout] warning: field `ok` is never read
[INFO] [stdout]   --> lichess/src/api.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Ok {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 22 |     pub ok: bool,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Ok` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ok` is never read
[INFO] [stdout]   --> lichess/src/api.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Ok {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 22 |     pub ok: bool,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Ok` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "3e03096b95a8431f1c3b7fa0f21e3767548b9414b7b0b65720a02482d82400ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e03096b95a8431f1c3b7fa0f21e3767548b9414b7b0b65720a02482d82400ec", kill_on_drop: false }`
[INFO] [stdout] 3e03096b95a8431f1c3b7fa0f21e3767548b9414b7b0b65720a02482d82400ec