[INFO] fetching crate xfpl 0.1.1...
[INFO] checking xfpl-0.1.1 against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] extracting crate xfpl 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate xfpl 0.1.1 on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xfpl 0.1.1
[INFO] finished tweaking crates.io crate xfpl 0.1.1
[INFO] tweaked toml for crates.io crate xfpl 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate xfpl 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typetag v0.1.5
[INFO] [stderr]   Downloaded typetag-impl v0.1.5
[INFO] [stderr]   Downloaded kurbo v0.6.1
[INFO] [stderr]   Downloaded core-text v15.0.0
[INFO] [stderr]   Downloaded usvg v0.9.1
[INFO] [stderr]   Downloaded unicode-script v0.5.1
[INFO] [stderr]   Downloaded ffmpeg-next v4.2.1
[INFO] [stderr]   Downloaded rgb v0.8.18
[INFO] [stderr]   Downloaded ffmpeg-sys-next v4.2.0
[INFO] [stderr]   Downloaded freetype v0.5.1
[INFO] [stderr]   Downloaded libflate v1.0.1
[INFO] [stderr]   Downloaded apng v0.2.0
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.4
[INFO] [stderr]   Downloaded assert-impl v0.1.3
[INFO] [stderr]   Downloaded rhai v0.14.1
[INFO] [stderr]   Downloaded resvg v0.9.1
[INFO] [stderr]   Downloaded harfbuzz_rs v1.1.1
[INFO] [stderr]   Downloaded cpal v0.11.0
[INFO] [stderr]   Downloaded harfbuzz-sys v0.4.0
[INFO] [stderr]   Downloaded gtk-rs-lgpl-docs v0.1.15
[INFO] [stderr]   Downloaded rustdoc-stripper v0.1.12
[INFO] [stderr]   Downloaded ttf-parser v0.6.1
[INFO] [stderr]   Downloaded freetype-sys v0.11.0
[INFO] [stderr]   Downloaded lewton v0.10.1
[INFO] [stderr]   Downloaded rodio v0.11.0
[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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "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] 6d59224f0a57ffcc0749b6d2e8e6eaf3d48a92faf368835d5ecdf34569dbe7d1
[INFO] running `Command { std: "docker" "start" "-a" "6d59224f0a57ffcc0749b6d2e8e6eaf3d48a92faf368835d5ecdf34569dbe7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d59224f0a57ffcc0749b6d2e8e6eaf3d48a92faf368835d5ecdf34569dbe7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d59224f0a57ffcc0749b6d2e8e6eaf3d48a92faf368835d5ecdf34569dbe7d1", kill_on_drop: false }`
[INFO] [stdout] 6d59224f0a57ffcc0749b6d2e8e6eaf3d48a92faf368835d5ecdf34569dbe7d1
[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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] ff42f4fc2643d13c0a2730257cb21b2f8141a80150d593eee6d2206782e358aa
[INFO] running `Command { std: "docker" "start" "-a" "ff42f4fc2643d13c0a2730257cb21b2f8141a80150d593eee6d2206782e358aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.27
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling rustdoc-stripper v0.1.12
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking base64 v0.12.1
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking xmlparser v0.13.1
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling ffmpeg-next v4.2.1
[INFO] [stderr]     Checking unicode-script v0.5.1
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking rgb v0.8.18
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking ttf-parser v0.6.1
[INFO] [stderr]     Checking libflate_lz77 v1.0.0
[INFO] [stderr]     Checking assert-impl v0.1.3
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling gio-sys v0.9.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling atk-sys v0.9.1
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling gtk-rs-lgpl-docs v0.1.15
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking roxmltree v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking kurbo v0.6.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking svgfilters v0.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]     Checking simplecss v0.2.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]     Checking libflate v1.0.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling freetype-sys v0.11.0
[INFO] [stderr]    Compiling harfbuzz-sys v0.4.0
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]    Compiling onig_sys v69.5.0
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking lewton v0.10.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.2
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]     Checking rhai v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking minimp3 v0.3.5
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking freetype v0.5.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking harfbuzz_rs v1.1.1
[INFO] [stderr]     Checking usvg v0.9.1
[INFO] [stderr]     Checking onig v6.0.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[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-1.0.27/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -Cembed-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"' --cfg 'feature="visit-mut"' -C metadata=9e1e4f16605da9fa -C extra-filename=-9e1e4f16605da9fa --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4b61398f938f9648.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-903a3e3cbaa6f35b.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-6181e2f2fb8255ce.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" "ff42f4fc2643d13c0a2730257cb21b2f8141a80150d593eee6d2206782e358aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff42f4fc2643d13c0a2730257cb21b2f8141a80150d593eee6d2206782e358aa", kill_on_drop: false }`
[INFO] [stdout] ff42f4fc2643d13c0a2730257cb21b2f8141a80150d593eee6d2206782e358aa