[INFO] cloning repository https://github.com/Antyas/amethyst-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Antyas/amethyst-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntyas%2Famethyst-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntyas%2Famethyst-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16ad833040177bcfb1c61c9ca1c644c1b2b7ad03
[INFO] checking Antyas/amethyst-learn against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntyas%2Famethyst-learn" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Antyas/amethyst-learn on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Antyas/amethyst-learn
[INFO] finished tweaking git repo https://github.com/Antyas/amethyst-learn
[INFO] tweaked toml for git repo https://github.com/Antyas/amethyst-learn written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Antyas/amethyst-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.3.1
[INFO] [stderr]   Downloaded num-complex v0.3.1
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded ghost v0.1.2
[INFO] [stderr]   Downloaded amethyst_animation v0.15.3
[INFO] [stderr]   Downloaded erased-serde v0.3.12
[INFO] [stderr]   Downloaded tinystr v0.3.4
[INFO] [stderr]   Downloaded amethyst_ui v0.15.3
[INFO] [stderr]   Downloaded amethyst_locale v0.15.3
[INFO] [stderr]   Downloaded amethyst_network v0.15.3
[INFO] [stderr]   Downloaded gltf-json v0.15.2
[INFO] [stderr]   Downloaded gltf-derive v0.15.2
[INFO] [stderr]   Downloaded amethyst_input v0.15.3
[INFO] [stderr]   Downloaded amethyst_assets v0.15.3
[INFO] [stderr]   Downloaded amethyst_audio v0.15.3
[INFO] [stderr]   Downloaded blake2b_simd v0.5.11
[INFO] [stderr]   Downloaded amethyst_rendy v0.15.3
[INFO] [stderr]   Downloaded amethyst v0.15.3
[INFO] [stderr]   Downloaded amethyst_derive v0.15.3
[INFO] [stderr]   Downloaded amethyst_config v0.15.3
[INFO] [stderr]   Downloaded amethyst_core v0.15.3
[INFO] [stderr]   Downloaded amethyst_error v0.15.3
[INFO] [stderr]   Downloaded num-bigint v0.3.1
[INFO] [stderr]   Downloaded tynm v0.1.6
[INFO] [stderr]   Downloaded claxon v0.4.3
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.6
[INFO] [stderr]   Downloaded fern v0.6.0
[INFO] [stderr]   Downloaded ctor v0.1.16
[INFO] [stderr]   Downloaded inventory-impl v0.1.9
[INFO] [stderr]   Downloaded amethyst_controls v0.15.3
[INFO] [stderr]   Downloaded inventory v0.1.9
[INFO] [stderr]   Downloaded amethyst_utils v0.15.3
[INFO] [stderr]   Downloaded amethyst_window v0.15.3
[INFO] [stderr]   Downloaded inflections v1.1.1
[INFO] [stderr]   Downloaded gltf v0.15.2
[INFO] [stderr]   Downloaded dunce v1.0.1
[INFO] [stderr]   Downloaded rustc_version_runtime v0.2.0
[INFO] [stderr]   Downloaded mint v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e1b7603bc1b7898a1c6156e469fb4dff733f158a4766260ecad282f63004294
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8e1b7603bc1b7898a1c6156e469fb4dff733f158a4766260ecad282f63004294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e1b7603bc1b7898a1c6156e469fb4dff733f158a4766260ecad282f63004294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1b7603bc1b7898a1c6156e469fb4dff733f158a4766260ecad282f63004294", kill_on_drop: false }`
[INFO] [stdout] 8e1b7603bc1b7898a1c6156e469fb4dff733f158a4766260ecad282f63004294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f77d8fa709764e4ee452bbfde3a46fe4787548046c5907a055b9060d8f93d98e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f77d8fa709764e4ee452bbfde3a46fe4787548046c5907a055b9060d8f93d98e", kill_on_drop: false }`
[INFO] [stderr]     Checking mint v0.5.6
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]    Compiling tinystr v0.3.4
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]     Checking fluent-syntax v0.9.3
[INFO] [stderr]     Checking dunce v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.1.2
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking x11 v2.18.2
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling lexical v2.2.2
[INFO] [stderr]    Compiling rustc_version_runtime v0.2.0
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking unic-langid-impl v0.8.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]     Checking type-map v0.3.0
[INFO] [stderr]     Checking lewton v0.10.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling proc_macro_roids v0.7.0
[INFO] [stderr]    Compiling shred-derive v0.6.2
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling ctor v0.1.16
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling inventory-impl v0.1.9
[INFO] [stderr]    Compiling gltf-derive v0.15.2
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.14.9/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="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=a6f0e76078e868c1 -C extra-filename=-a6f0e76078e868c1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1c8cd06d03ec2d01.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-179b18ceb2cbc452.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-de12218e15042935.rmeta --cap-lints allow --cap-lints=forbid` (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" "f77d8fa709764e4ee452bbfde3a46fe4787548046c5907a055b9060d8f93d98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f77d8fa709764e4ee452bbfde3a46fe4787548046c5907a055b9060d8f93d98e", kill_on_drop: false }`
[INFO] [stdout] f77d8fa709764e4ee452bbfde3a46fe4787548046c5907a055b9060d8f93d98e