[INFO] fetching crate nc_explorer 0.2.0...
[INFO] testing nc_explorer-0.2.0 against try#5bc97a20e5cc382ae6d19f727a9e73eeb2734548 for pr-99093
[INFO] extracting crate nc_explorer 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate nc_explorer 0.2.0 on toolchain 5bc97a20e5cc382ae6d19f727a9e73eeb2734548
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nc_explorer 0.2.0
[INFO] finished tweaking crates.io crate nc_explorer 0.2.0
[INFO] tweaked toml for crates.io crate nc_explorer 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate nc_explorer 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0328e418b9298fdeab52c310413262e40027a67e92b5986da666cdc28d684070
[INFO] running `Command { std: "docker" "start" "-a" "0328e418b9298fdeab52c310413262e40027a67e92b5986da666cdc28d684070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0328e418b9298fdeab52c310413262e40027a67e92b5986da666cdc28d684070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0328e418b9298fdeab52c310413262e40027a67e92b5986da666cdc28d684070", kill_on_drop: false }`
[INFO] [stdout] 0328e418b9298fdeab52c310413262e40027a67e92b5986da666cdc28d684070
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8167dcf80c2505637a5cd7a27bb8f6abf298a951d71ab18615d6816c742e473
[INFO] running `Command { std: "docker" "start" "-a" "b8167dcf80c2505637a5cd7a27bb8f6abf298a951d71ab18615d6816c742e473", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling ttf-parser v0.14.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.5
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling winit v0.26.1
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling netcdf-sys v0.4.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling glow v0.11.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling raw-window-handle v0.4.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling poll-promise v0.1.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling owned_ttf_parser v0.14.0
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling ab_glyph v0.2.13
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling hdf5-src v0.8.1
[INFO] [stderr]    Compiling netcdf-src v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling memmap2 v0.3.1
[INFO] [stderr]    Compiling gethostname v0.2.3
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling ordered-float v3.0.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling webbrowser v0.7.1
[INFO] [stderr]    Compiling ndarray v0.15.4
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling wayland-commons v0.29.4
[INFO] [stderr]    Compiling calloop v0.9.3
[INFO] [stderr]    Compiling x11rb v0.9.0
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.86/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on --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="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=e5f484eded760966 -C extra-filename=-e5f484eded760966 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-aed5c9e9ac524325.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2940104129752b2b.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-0705d2ec01d2ab83.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" "b8167dcf80c2505637a5cd7a27bb8f6abf298a951d71ab18615d6816c742e473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8167dcf80c2505637a5cd7a27bb8f6abf298a951d71ab18615d6816c742e473", kill_on_drop: false }`
[INFO] [stdout] b8167dcf80c2505637a5cd7a27bb8f6abf298a951d71ab18615d6816c742e473