[INFO] fetching crate vxdraw 0.6.0...
[INFO] checking vxdraw-0.6.0 against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] extracting crate vxdraw 0.6.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate vxdraw 0.6.0 on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vxdraw 0.6.0
[INFO] finished tweaking crates.io crate vxdraw 0.6.0
[INFO] tweaked toml for crates.io crate vxdraw 0.6.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f52cd459646a0dc24b44662f3cd01e9d6e61fc008f18afb64f2c6ce2f4d3f664
[INFO] running `Command { std: "docker" "start" "-a" "f52cd459646a0dc24b44662f3cd01e9d6e61fc008f18afb64f2c6ce2f4d3f664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f52cd459646a0dc24b44662f3cd01e9d6e61fc008f18afb64f2c6ce2f4d3f664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52cd459646a0dc24b44662f3cd01e9d6e61fc008f18afb64f2c6ce2f4d3f664", kill_on_drop: false }`
[INFO] [stdout] f52cd459646a0dc24b44662f3cd01e9d6e61fc008f18afb64f2c6ce2f4d3f664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 254a94249269b5b6eedc4de8cee8f059c86adf0d4ef878767ceab9944051663f
[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" "254a94249269b5b6eedc4de8cee8f059c86adf0d4ef878767ceab9944051663f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking xi-unicode v0.2.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking mint v0.5.6
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking libloading v0.6.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking ogg v0.7.1
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling shaderc-sys v0.6.3
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking x11 v2.18.2
[INFO] [stderr]     Checking raw-window-handle v0.1.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[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-0.15.44/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=697941fb992bf39d -C extra-filename=-697941fb992bf39d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ab33b97f38e6e831.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-476d26c939207289.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-e62bdf8dd5704851.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Requested to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "254a94249269b5b6eedc4de8cee8f059c86adf0d4ef878767ceab9944051663f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254a94249269b5b6eedc4de8cee8f059c86adf0d4ef878767ceab9944051663f", kill_on_drop: false }`
[INFO] [stdout] 254a94249269b5b6eedc4de8cee8f059c86adf0d4ef878767ceab9944051663f