[INFO] cloning repository https://github.com/ivan-guerra/pragmatic_programmer_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivan-guerra/pragmatic_programmer_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-guerra%2Fpragmatic_programmer_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-guerra%2Fpragmatic_programmer_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f8ad85616a8b7a2015d6fa5c9939bc65d37a6ec
[INFO] checking ivan-guerra/pragmatic_programmer_exercises against try#723ab942d877517caf445dafde0416803ef56501 for pr-143857
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-guerra%2Fpragmatic_programmer_exercises" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ivan-guerra/pragmatic_programmer_exercises
[INFO] finished tweaking git repo https://github.com/ivan-guerra/pragmatic_programmer_exercises
[INFO] tweaked toml for git repo https://github.com/ivan-guerra/pragmatic_programmer_exercises written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ivan-guerra/pragmatic_programmer_exercises on toolchain 723ab942d877517caf445dafde0416803ef56501
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ivan-guerra/pragmatic_programmer_exercises 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" "+723ab942d877517caf445dafde0416803ef56501" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99d6a8303d7e9a741c17fa52b7043fb1327bb200243ddcbe1ce8b91b3a38635d
[INFO] running `Command { std: "docker" "start" "-a" "99d6a8303d7e9a741c17fa52b7043fb1327bb200243ddcbe1ce8b91b3a38635d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99d6a8303d7e9a741c17fa52b7043fb1327bb200243ddcbe1ce8b91b3a38635d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d6a8303d7e9a741c17fa52b7043fb1327bb200243ddcbe1ce8b91b3a38635d", kill_on_drop: false }`
[INFO] [stdout] 99d6a8303d7e9a741c17fa52b7043fb1327bb200243ddcbe1ce8b91b3a38635d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 358f58f3d7d8fa912f665e30746a46b279de7e0dd3641f0435db59e72405d296
[INFO] running `Command { std: "docker" "start" "-a" "358f58f3d7d8fa912f665e30746a46b279de7e0dd3641f0435db59e72405d296", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling cc v1.2.24
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking libloading v0.8.8
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling toml_datetime v0.6.9
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling winnow v0.7.10
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking litemap v0.8.0
[INFO] [stderr]     Checking writeable v0.6.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling quick-xml v0.37.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling wayland-sys v0.31.6
[INFO] [stderr]    Compiling wayland-client v0.31.10
[INFO] [stderr]     Checking event-listener v5.4.0
[INFO] [stderr]     Checking futures-lite v2.6.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking endi v1.1.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking async-lock v3.4.0
[INFO] [stderr]    Compiling wayland-backend v0.3.10
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]     Checking ttf-parser v0.25.1
[INFO] [stderr]     Checking async-broadcast v0.7.2
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]     Checking async-executor v1.13.2
[INFO] [stderr]     Checking async-fs v2.1.2
[INFO] [stderr]     Checking ordered-stream v0.2.0
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling xml-rs v0.8.26
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling toml_edit v0.22.26
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking xdg-home v1.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]    Compiling wayland-scanner v0.31.6
[INFO] [stderr]     Checking x11rb-protocol v0.13.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking cursor-icon v1.2.0
[INFO] [stderr]     Checking as-raw-xcb-connection v1.0.1
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[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking accesskit v0.17.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking fdeflate v0.3.7
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking immutable-chunkmap v2.0.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling winit v0.30.11
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]     Checking byteorder-lite v0.1.0
[INFO] [stderr]     Checking xkbcommon-dl v0.4.2
[INFO] [stderr]     Checking smol_str v0.2.2
[INFO] [stderr]     Checking accesskit_consumer v0.26.0
[INFO] [stderr]     Checking dpi v0.1.2
[INFO] [stderr]     Checking epaint_default_fonts v0.31.1
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]     Checking profiling v1.0.16
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]    Compiling glutin v0.32.3
[INFO] [stderr]    Compiling glutin-winit v0.5.0
[INFO] [stderr]     Checking home v0.5.11
[INFO] [stderr]     Checking web-time v1.1.0
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]    Compiling glutin_egl_sys v0.7.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.6.1
[INFO] [stderr]     Checking owned_ttf_parser v0.25.0
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zvariant_utils v2.1.0
[INFO] [stderr]     Checking ab_glyph v0.2.29
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking openssl-probe v0.1.6
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking tower-layer v0.3.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking ipnet v2.11.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking iri-string v0.7.8
[INFO] [stderr]     Checking rustls-pki-types v1.12.0
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking inout v0.1.4
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking rtoolbox v0.0.3
[INFO] [stderr]     Checking blowfish v0.9.1
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking petgraph v0.8.2
[INFO] [stderr]     Checking rpassword v7.4.0
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking e20 v0.1.0 (/opt/rustwide/workdir/exercises/e20)
[INFO] [stderr]     Checking wayland-csd-frame v0.3.0
[INFO] [stderr]     Checking bcrypt v0.17.0
[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/723ab942d877517caf445dafde0416803ef56501/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.101/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 --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"' --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=870cf6348d3779c0 -C extra-filename=-1547285a5c2cb0de --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-09040b10b620fa15.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-bff949ffe258c67d.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b3925cc8f83e9ac1.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" "358f58f3d7d8fa912f665e30746a46b279de7e0dd3641f0435db59e72405d296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "358f58f3d7d8fa912f665e30746a46b279de7e0dd3641f0435db59e72405d296", kill_on_drop: false }`
[INFO] [stdout] 358f58f3d7d8fa912f665e30746a46b279de7e0dd3641f0435db59e72405d296