[INFO] cloning repository https://github.com/dirdr/digit_recognizer_mnist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dirdr/digit_recognizer_mnist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirdr%2Fdigit_recognizer_mnist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirdr%2Fdigit_recognizer_mnist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efec8500e89f7cba65bea43c638f453bafef2783
[INFO] checking dirdr/digit_recognizer_mnist against try#4797991aa2efb6d658150f10425b3f3b5d10eceb for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirdr%2Fdigit_recognizer_mnist" "/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/dirdr/digit_recognizer_mnist
[INFO] finished tweaking git repo https://github.com/dirdr/digit_recognizer_mnist
[INFO] tweaked toml for git repo https://github.com/dirdr/digit_recognizer_mnist written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dirdr/digit_recognizer_mnist on toolchain 4797991aa2efb6d658150f10425b3f3b5d10eceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dirdr/digit_recognizer_mnist 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" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f1eeae4a21aadf62c880f01efefce36b0e650bc9ec57d6e1555febe1b4b3cab
[INFO] running `Command { std: "docker" "start" "-a" "0f1eeae4a21aadf62c880f01efefce36b0e650bc9ec57d6e1555febe1b4b3cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f1eeae4a21aadf62c880f01efefce36b0e650bc9ec57d6e1555febe1b4b3cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f1eeae4a21aadf62c880f01efefce36b0e650bc9ec57d6e1555febe1b4b3cab", kill_on_drop: false }`
[INFO] [stdout] 0f1eeae4a21aadf62c880f01efefce36b0e650bc9ec57d6e1555febe1b4b3cab
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe1b03512c0038d066c0ba61d7152c6479ece595b6d19bc5a001c5da2ca87909
[INFO] running `Command { std: "docker" "start" "-a" "fe1b03512c0038d066c0ba61d7152c6479ece595b6d19bc5a001c5da2ca87909", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking libloading v0.8.3
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]    Compiling wayland-sys v0.31.1
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking ttf-parser v0.21.1
[INFO] [stderr]     Checking rustix v0.38.34
[INFO] [stderr]     Checking either v1.11.0
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking waker-fn v1.2.0
[INFO] [stderr]    Compiling quick-xml v0.31.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking piper v0.2.2
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking event-listener v5.3.0
[INFO] [stderr]    Compiling syn v2.0.64
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking thread-tree v0.3.3
[INFO] [stderr]    Compiling wayland-backend v0.3.3
[INFO] [stderr]     Checking num-bigint v0.4.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling wayland-scanner v0.31.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]     Checking blocking v1.6.0
[INFO] [stderr]    Compiling xml-rs v0.8.20
[INFO] [stderr]     Checking zerocopy v0.7.34
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking async-executor v1.11.0
[INFO] [stderr]     Checking owned_ttf_parser v0.21.0
[INFO] [stderr]     Checking xdg-home v1.1.0
[INFO] [stderr]     Checking async-broadcast v0.5.1
[INFO] [stderr]     Checking ab_glyph v0.2.26
[INFO] [stderr]     Checking ordered-stream v0.2.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.18.1
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]     Checking xkeysym v0.2.0
[INFO] [stderr]     Checking xcursor v0.3.5
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking memmap2 v0.9.4
[INFO] [stderr]    Compiling built v0.7.2
[INFO] [stderr]     Checking aligned-vec v0.5.0
[INFO] [stderr]     Checking accesskit v0.12.3
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking v_frame v0.3.8
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]     Checking x11-dl v2.21.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking x11rb-protocol v0.13.1
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]    Compiling winit v0.29.15
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking spin v0.9.8
[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/4797991aa2efb6d658150f10425b3f3b5d10eceb/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.64/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="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=3ceee6f3a7e71d4a -C extra-filename=-3dc6be6dbaefd23c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-26cc22cd40e32dc7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1bb94451aaaf2f65.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f2de522ba645d884.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" "fe1b03512c0038d066c0ba61d7152c6479ece595b6d19bc5a001c5da2ca87909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe1b03512c0038d066c0ba61d7152c6479ece595b6d19bc5a001c5da2ca87909", kill_on_drop: false }`
[INFO] [stdout] fe1b03512c0038d066c0ba61d7152c6479ece595b6d19bc5a001c5da2ca87909