[INFO] fetching crate pix-image-viewer 0.2.7...
[INFO] testing pix-image-viewer-0.2.7 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate pix-image-viewer 0.2.7 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pix-image-viewer 0.2.7 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pix-image-viewer 0.2.7
[INFO] finished tweaking crates.io crate pix-image-viewer 0.2.7
[INFO] tweaked toml for crates.io crate pix-image-viewer 0.2.7 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate pix-image-viewer 0.2.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston v0.52.1
[INFO] [stderr]   Downloaded resize v0.5.5
[INFO] [stderr]   Downloaded piston_window v0.116.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.67.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.39.0
[INFO] [stderr]   Downloaded image v0.23.11
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.1
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.72.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08cf7474010aecb606b481563d2bb846d2777b6e55e0141f58de9641d2321e1f
[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" "08cf7474010aecb606b481563d2bb846d2777b6e55e0141f58de9641d2321e1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08cf7474010aecb606b481563d2bb846d2777b6e55e0141f58de9641d2321e1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08cf7474010aecb606b481563d2bb846d2777b6e55e0141f58de9641d2321e1f", kill_on_drop: false }`
[INFO] [stdout] 08cf7474010aecb606b481563d2bb846d2777b6e55e0141f58de9641d2321e1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 417d278264b6699a2018f51d37028a38c3f7fb1b2412f2759ff4fabaf73801b8
[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" "417d278264b6699a2018f51d37028a38c3f7fb1b2412f2759ff4fabaf73801b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling piston-graphics_api_version v1.0.0
[INFO] [stderr]    Compiling weezl v0.1.3
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling piston-texture v0.8.0
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling interpolation v0.2.0
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.4.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling humantime v2.0.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling histogram v0.6.9
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling libloading v0.6.5
[INFO] [stderr]    Compiling instant v0.1.8
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling vecmath v1.0.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling rgb v0.8.25
[INFO] [stderr]    Compiling shader_version v0.7.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling gif v0.11.1
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling piston2d-graphics v0.39.0
[INFO] [stderr]    Compiling resize v0.5.5
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling gfx_core v0.9.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling png v0.16.7
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling gfx v0.18.2
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling sled v0.34.6
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling env_logger v0.8.1
[INFO] [stderr]    Compiling rayon v1.5.0
[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-1.0.48/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=dfab0bb447666ba0 -C extra-filename=-dfab0bb447666ba0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1a6a39c3cd9b115f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-504b9604c4b778d8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-accda8c4d770d472.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" "417d278264b6699a2018f51d37028a38c3f7fb1b2412f2759ff4fabaf73801b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "417d278264b6699a2018f51d37028a38c3f7fb1b2412f2759ff4fabaf73801b8", kill_on_drop: false }`
[INFO] [stdout] 417d278264b6699a2018f51d37028a38c3f7fb1b2412f2759ff4fabaf73801b8