[INFO] fetching crate puffin_viewer 0.11.0...
[INFO] testing puffin_viewer-0.11.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate puffin_viewer 0.11.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate puffin_viewer 0.11.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate puffin_viewer 0.11.0
[INFO] finished tweaking crates.io crate puffin_viewer 0.11.0
[INFO] tweaked toml for crates.io crate puffin_viewer 0.11.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate puffin_viewer 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc67b3cf03b698e418a6747beb0f10844820a1cb14db67bb2365b6fd6e3b266d
[INFO] running `Command { std: "docker" "start" "-a" "dc67b3cf03b698e418a6747beb0f10844820a1cb14db67bb2365b6fd6e3b266d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc67b3cf03b698e418a6747beb0f10844820a1cb14db67bb2365b6fd6e3b266d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc67b3cf03b698e418a6747beb0f10844820a1cb14db67bb2365b6fd6e3b266d", kill_on_drop: false }`
[INFO] [stdout] dc67b3cf03b698e418a6747beb0f10844820a1cb14db67bb2365b6fd6e3b266d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d19cb54bfba8fb6851baee0f5c9f8507c464e3ccbc524474c2b09b3e20c3ae9
[INFO] running `Command { std: "docker" "start" "-a" "0d19cb54bfba8fb6851baee0f5c9f8507c464e3ccbc524474c2b09b3e20c3ae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling ttf-parser v0.14.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.5
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling atomic_refcell v0.1.8
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling zstd-safe v4.1.4+zstd.1.5.2
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling winit v0.26.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling easy-parallel v3.2.0
[INFO] [stderr]    Compiling async-task v4.1.0
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling webbrowser v0.5.5
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]    Compiling glow v0.11.2
[INFO] [stderr]    Compiling num_threads v0.1.3
[INFO] [stderr]    Compiling rfd v0.7.0
[INFO] [stderr]    Compiling argh_shared v0.1.7
[INFO] [stderr]    Compiling pollster v0.2.5
[INFO] [stderr]    Compiling natord v1.0.9
[INFO] [stderr]    Compiling vec1 v1.8.0
[INFO] [stderr]    Compiling cfg-expr v0.9.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling ordered-stream v0.0.1
[INFO] [stderr]    Compiling async-broadcast v0.3.4
[INFO] [stderr]    Compiling raw-window-handle v0.4.2
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling owned_ttf_parser v0.14.0
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling ab_glyph v0.2.13
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling memmap2 v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling directories-next v2.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling simple_logger v2.1.0
[INFO] [stderr]    Compiling zstd-sys v1.6.3+zstd.1.5.2
[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,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --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="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=c0d1b8a3c72f4211 -C extra-filename=-c0d1b8a3c72f4211 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e91ec37ac01f916c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5f4666774155f97d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-aeb18ec3bc792598.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0d19cb54bfba8fb6851baee0f5c9f8507c464e3ccbc524474c2b09b3e20c3ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d19cb54bfba8fb6851baee0f5c9f8507c464e3ccbc524474c2b09b3e20c3ae9", kill_on_drop: false }`
[INFO] [stdout] 0d19cb54bfba8fb6851baee0f5c9f8507c464e3ccbc524474c2b09b3e20c3ae9