[INFO] cloning repository https://github.com/aurgint/didactic-guacamole
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aurgint/didactic-guacamole" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faurgint%2Fdidactic-guacamole", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faurgint%2Fdidactic-guacamole'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 054e2b53fff0cbbecfb14c1c5eec90484f6bf559
[INFO] testing aurgint/didactic-guacamole against beta-2021-11-30 for beta-1.58-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faurgint%2Fdidactic-guacamole" "/workspace/builds/worker-79/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aurgint/didactic-guacamole on toolchain beta-2021-11-30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-11-30" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aurgint/didactic-guacamole
[INFO] finished tweaking git repo https://github.com/aurgint/didactic-guacamole
[INFO] tweaked toml for git repo https://github.com/aurgint/didactic-guacamole written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] crate git repo https://github.com/aurgint/didactic-guacamole already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-11-30" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-11-30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccc261255451c4ee84053a7f072f3ddc9f4cceb884dfe7accebe39beb6f1b062
[INFO] running `Command { std: "docker" "start" "-a" "ccc261255451c4ee84053a7f072f3ddc9f4cceb884dfe7accebe39beb6f1b062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccc261255451c4ee84053a7f072f3ddc9f4cceb884dfe7accebe39beb6f1b062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccc261255451c4ee84053a7f072f3ddc9f4cceb884dfe7accebe39beb6f1b062", kill_on_drop: false }`
[INFO] [stdout] ccc261255451c4ee84053a7f072f3ddc9f4cceb884dfe7accebe39beb6f1b062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-11-30" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33c5f869389ba0e6be4258fc88b0ce3edaba35d9949e1e836d138d9cd1824d2c
[INFO] running `Command { std: "docker" "start" "-a" "33c5f869389ba0e6be4258fc88b0ce3edaba35d9949e1e836d138d9cd1824d2c", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Compiling autocfg v0.1.6
[INFO] [stderr] Compiling libc v0.2.65
[INFO] [stderr] Compiling xml-rs v0.8.0
[INFO] [stderr] Compiling semver-parser v0.7.0
[INFO] [stderr] Compiling byteorder v1.3.2
[INFO] [stderr] Compiling log v0.4.8
[INFO] [stderr] Compiling khronos_api v3.1.0
[INFO] [stderr] Compiling cc v1.0.46
[INFO] [stderr] Compiling scopeguard v1.0.0
[INFO] [stderr] Compiling proc-macro2 v1.0.5
[INFO] [stderr] Compiling syn v0.15.44
[INFO] [stderr] Compiling piston-float v1.0.0
[INFO] [stderr] Compiling arrayvec v0.5.1
[INFO] [stderr] Compiling arrayvec v0.4.12
[INFO] [stderr] Compiling nodrop v0.1.14
[INFO] [stderr] Compiling syn v1.0.5
[INFO] [stderr] Compiling pkg-config v0.3.16
[INFO] [stderr] Compiling maybe-uninit v2.0.0
[INFO] [stderr] Compiling serde v1.0.101
[INFO] [stderr] Compiling downcast-rs v1.1.0
[INFO] [stderr] Compiling same-file v1.0.5
[INFO] [stderr] Compiling rayon-core v1.6.0
[INFO] [stderr] Compiling piston-graphics_api_version v0.2.0
[INFO] [stderr] Compiling num-derive v0.2.5
[INFO] [stderr] Compiling xdg v2.2.0
[INFO] [stderr] Compiling crc32fast v1.2.0
[INFO] [stderr] Compiling adler32 v1.0.4
[INFO] [stderr] Compiling smallvec v0.6.10
[INFO] [stderr] Compiling either v1.5.3
[INFO] [stderr] Compiling lzw v0.10.0
[INFO] [stderr] Compiling color_quant v1.0.1
[INFO] [stderr] Compiling percent-encoding v2.1.0
[INFO] [stderr] Compiling read_color v1.0.0
[INFO] [stderr] Compiling interpolation v0.2.0
[INFO] [stderr] Compiling scoped_threadpool v0.1.9
[INFO] [stderr] Compiling fnv v1.0.6
[INFO] [stderr] Compiling piston-texture v0.8.0
[INFO] [stderr] Compiling piston-shaders_graphics2d v0.3.1
[INFO] [stderr] Compiling crossbeam-utils v0.6.6
[INFO] [stderr] Compiling piston-viewport v1.0.0
[INFO] [stderr] Compiling vecmath v1.0.0
[INFO] [stderr] Compiling walkdir v2.2.9
[INFO] [stderr] Compiling inflate v0.4.5
[INFO] [stderr] Compiling shader_version v0.6.0
[INFO] [stderr] Compiling lock_api v0.3.1
[INFO] [stderr] Compiling semver v0.9.0
[INFO] [stderr] Compiling wayland-scanner v0.21.13
[INFO] [stderr] Compiling gif v0.10.3
[INFO] [stderr] Compiling num-traits v0.2.8
[INFO] [stderr] Compiling num-integer v0.1.41
[INFO] [stderr] Compiling num-iter v0.1.39
[INFO] [stderr] Compiling num-rational v0.2.2
[INFO] [stderr] Compiling x11-dl v2.18.4
[INFO] [stderr] Compiling libloading v0.5.2
[INFO] [stderr] Compiling crossbeam-queue v0.1.2
[INFO] [stderr] Compiling gl_generator v0.11.0
[INFO] [stderr] Compiling gl_generator v0.10.0
[INFO] [stderr] Compiling rustc_version v0.2.3
[INFO] [stderr] Compiling nix v0.14.1
[INFO] [stderr] Compiling num_cpus v1.10.1
[INFO] [stderr] Compiling memmap v0.7.0
[INFO] [stderr] Compiling shared_library v0.1.9
[INFO] [stderr] Compiling raw-window-handle v0.3.0
[INFO] [stderr] Compiling quote v1.0.2
[INFO] [stderr] Compiling memoffset v0.5.1
[INFO] [stderr] Compiling parking_lot_core v0.6.2
[INFO] [stderr] Compiling parking_lot v0.9.0
[INFO] [stderr] Compiling stb_truetype v0.3.0
[INFO] [stderr] Compiling deflate v0.7.20
[INFO] [stderr] Compiling osmesa-sys v0.1.2
[INFO] [stderr] Compiling approx v0.3.2
[INFO] [stderr] Compiling ordered-float v1.0.2
[INFO] [stderr] Compiling line_drawing v0.7.0
[INFO] [stderr] Compiling gl v0.11.0
[INFO] [stderr] Compiling dlib v0.4.1
[INFO] [stderr] Compiling wayland-client v0.21.13
[INFO] [stderr] Compiling wayland-protocols v0.21.13
[INFO] [stderr] Compiling glutin_glx_sys v0.1.5
[INFO] [stderr] Compiling glutin_egl_sys v0.1.3
[INFO] [stderr] Compiling wayland-sys v0.21.13
[INFO] [stderr] Compiling rusttype v0.8.1
[INFO] [stderr] Compiling png v0.15.0
[INFO] [stderr] Compiling derivative v1.0.3
[INFO] [stderr] Compiling rusttype v0.7.9
[INFO] [stderr] Compiling wayland-commons v0.21.13
[INFO] [stderr] Compiling crossbeam-epoch v0.7.2
[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-1.0.5/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=a33a507b8274b873 -C extra-filename=-a33a507b8274b873 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f0257a1183e50f2a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d0a847f014c3aa82.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-7302ed5398444af1.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" "33c5f869389ba0e6be4258fc88b0ce3edaba35d9949e1e836d138d9cd1824d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c5f869389ba0e6be4258fc88b0ce3edaba35d9949e1e836d138d9cd1824d2c", kill_on_drop: false }`
[INFO] [stdout] 33c5f869389ba0e6be4258fc88b0ce3edaba35d9949e1e836d138d9cd1824d2c