[INFO] cloning repository https://github.com/mactavishz/100-exercises-to-learn-rust-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mactavishz/100-exercises-to-learn-rust-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmactavishz%2F100-exercises-to-learn-rust-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmactavishz%2F100-exercises-to-learn-rust-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0452bc2a289ae98c3effea2395e32d2e7e009165
[INFO] building mactavishz/100-exercises-to-learn-rust-solutions against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmactavishz%2F100-exercises-to-learn-rust-solutions" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mactavishz/100-exercises-to-learn-rust-solutions
[INFO] finished tweaking git repo https://github.com/mactavishz/100-exercises-to-learn-rust-solutions
[INFO] tweaked toml for git repo https://github.com/mactavishz/100-exercises-to-learn-rust-solutions written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mactavishz/100-exercises-to-learn-rust-solutions on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mactavishz/100-exercises-to-learn-rust-solutions 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.11.0
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.10.1
[INFO] [stderr]   Downloaded topological-sort v0.2.2
[INFO] [stderr]   Downloaded pulldown-cmark-to-cmark v15.0.1
[INFO] [stderr]   Downloaded opener v0.7.1
[INFO] [stderr]   Downloaded tempfile v3.11.0
[INFO] [stderr]   Downloaded clap v4.5.13
[INFO] [stderr]   Downloaded clap_complete v4.5.12
[INFO] [stderr]   Downloaded ammonia v4.0.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.10.3
[INFO] [stderr]   Downloaded elasticlunr-rs v3.0.2
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[INFO] [stderr]   Downloaded pulldown-cmark v0.11.0
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[INFO] [stderr]   Downloaded axum v0.8.3
[INFO] [stderr]   Downloaded mdbook v0.4.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81fcb74c3d514b0569530a070b9c8f1b18861d5cdb0ab1366f0d1772251d0c05
[INFO] running `Command { std: "docker" "start" "-a" "81fcb74c3d514b0569530a070b9c8f1b18861d5cdb0ab1366f0d1772251d0c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81fcb74c3d514b0569530a070b9c8f1b18861d5cdb0ab1366f0d1772251d0c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fcb74c3d514b0569530a070b9c8f1b18861d5cdb0ab1366f0d1772251d0c05", kill_on_drop: false }`
[INFO] [stdout] 81fcb74c3d514b0569530a070b9c8f1b18861d5cdb0ab1366f0d1772251d0c05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfbc309c7dfb1d4145c1b727730c9de633625fc702045edbd3ad835bd2590473
[INFO] running `Command { std: "docker" "start" "-a" "bfbc309c7dfb1d4145c1b727730c9de633625fc702045edbd3ad835bd2590473", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling bytes v1.7.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling itoa v1.0.11
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[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling common v0.1.0 (/opt/rustwide/workdir/helpers/common)
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling typenum v1.17.0
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[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling generic-array v0.14.7
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[INFO] [stderr]    Compiling getrandom v0.2.15
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[INFO] [stderr]    Compiling rand_core v0.6.4
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[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling tower-service v0.3.3
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[INFO] [stderr]    Compiling syn v2.0.72
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[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
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[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
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[INFO] [stderr]    Compiling mime_guess v2.0.5
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[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling indexmap v2.3.0
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[INFO] [stderr]    Compiling headers-core v0.2.0
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[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling filetime v0.2.23
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling clap_builder v4.5.13
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling pulldown-cmark v0.10.3
[INFO] [stderr]    Compiling notify v6.1.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling headers v0.3.9
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.10.1
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling bstr v1.10.0
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling tempfile v3.11.0
[INFO] [stderr]    Compiling env_filter v0.1.2
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ad85bc524b1ad696e42061ad8338d382dffbdbe5/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.72/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C overflow-checks=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=b445eed464ecc800 -C extra-filename=-30672bae3708b369 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-3f5610797db24f22.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d8b31908a7e86ccc.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-be6314391786149b.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bfbc309c7dfb1d4145c1b727730c9de633625fc702045edbd3ad835bd2590473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfbc309c7dfb1d4145c1b727730c9de633625fc702045edbd3ad835bd2590473", kill_on_drop: false }`
[INFO] [stdout] bfbc309c7dfb1d4145c1b727730c9de633625fc702045edbd3ad835bd2590473