[INFO] cloning repository https://github.com/xd009642/mdbook-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xd009642/mdbook-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Fmdbook-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Fmdbook-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48ddf12324d5c5feaa7ff1378bf10626d21def68
[INFO] checking xd009642/mdbook-chess against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Fmdbook-chess" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xd009642/mdbook-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] started tweaking git repo https://github.com/xd009642/mdbook-chess
[INFO] finished tweaking git repo https://github.com/xd009642/mdbook-chess
[INFO] tweaked toml for git repo https://github.com/xd009642/mdbook-chess written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xd009642/mdbook-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]  Downloading crates ...
[INFO] [stderr]   Downloaded globset v0.4.11
[INFO] [stderr]   Downloaded kqueue-sys v1.0.3
[INFO] [stderr]   Downloaded serde_yaml v0.9.24
[INFO] [stderr]   Downloaded clap v4.3.15
[INFO] [stderr]   Downloaded kqueue v1.0.7
[INFO] [stderr]   Downloaded clap_builder v4.3.15
[INFO] [stderr]   Downloaded mdbook v0.4.32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a28c16a035895d0ad3399def19f1092f2372534c473f13298ea2dfdef0224c0c
[INFO] running `Command { std: "docker" "start" "-a" "a28c16a035895d0ad3399def19f1092f2372534c473f13298ea2dfdef0224c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a28c16a035895d0ad3399def19f1092f2372534c473f13298ea2dfdef0224c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28c16a035895d0ad3399def19f1092f2372534c473f13298ea2dfdef0224c0c", kill_on_drop: false }`
[INFO] [stdout] a28c16a035895d0ad3399def19f1092f2372534c473f13298ea2dfdef0224c0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 08f3c7e142c16c68dac14f68ef38e63b10633a17b71f9014dc58bf44d28157d0
[INFO] running `Command { std: "docker" "start" "-a" "08f3c7e142c16c68dac14f68ef38e63b10633a17b71f9014dc58bf44d28157d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
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[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling rand v0.8.5
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[INFO] [stderr]    Compiling addr2line v0.20.0
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking headers v0.3.8
[INFO] [stderr]    Compiling phf_codegen v0.10.0
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[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]     Checking topological-sort v0.2.2
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[INFO] [stderr]     Checking clap_builder v4.3.15
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[INFO] [stderr]     Checking clap v3.2.25
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[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking bstr v1.6.0
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking globset v0.4.11
[INFO] [stderr]     Checking opener v0.6.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking ignore v0.4.20
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling html5ever v0.26.0
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]     Checking clap v4.3.15
[INFO] [stderr]     Checking clap_complete v4.3.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling chess v3.2.0
[INFO] [stderr]     Checking pin-project v1.1.2
[INFO] [stderr]    Compiling pest v2.7.1
[INFO] [stderr]     Checking tungstenite v0.18.0
[INFO] [stderr]    Compiling pest_meta v2.7.1
[INFO] [stderr]    Compiling pest_generator v2.7.1
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-tungstenite v0.18.0
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]    Compiling pest_derive v2.7.1
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]     Checking string_cache v0.8.7
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_yaml v0.9.24
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking elasticlunr-rs v3.0.2
[INFO] [stderr]     Checking handlebars v4.3.7
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking ammonia v3.3.0
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking warp v0.3.5
[INFO] [stderr]     Checking mdbook v0.4.32
[INFO] [stderr]     Checking mdbook-chess v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tracing::{info, trace, warn};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tracing::{info, trace, warn};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 16s
[INFO] running `Command { std: "docker" "inspect" "08f3c7e142c16c68dac14f68ef38e63b10633a17b71f9014dc58bf44d28157d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f3c7e142c16c68dac14f68ef38e63b10633a17b71f9014dc58bf44d28157d0", kill_on_drop: false }`
[INFO] [stdout] 08f3c7e142c16c68dac14f68ef38e63b10633a17b71f9014dc58bf44d28157d0