[INFO] fetching crate timberwolf 0.5.0...
[INFO] checking timberwolf-0.5.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate timberwolf 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate timberwolf 0.5.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timberwolf 0.5.0
[INFO] finished tweaking crates.io crate timberwolf 0.5.0
[INFO] tweaked toml for crates.io crate timberwolf 0.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da18d2c7cfb81b2b2acd86eb9669849059482d96cac3276c142c32a0a23778e6
[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" "da18d2c7cfb81b2b2acd86eb9669849059482d96cac3276c142c32a0a23778e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da18d2c7cfb81b2b2acd86eb9669849059482d96cac3276c142c32a0a23778e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da18d2c7cfb81b2b2acd86eb9669849059482d96cac3276c142c32a0a23778e6", kill_on_drop: false }`
[INFO] [stdout] da18d2c7cfb81b2b2acd86eb9669849059482d96cac3276c142c32a0a23778e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84e33cbe278bbd73778615f7fd22d2e88ac737ffb1729cfeb5ae47f9c6f78e2e
[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" "84e33cbe278bbd73778615f7fd22d2e88ac737ffb1729cfeb5ae47f9c6f78e2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling spirv-reflect v0.2.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling shaderc-sys v0.6.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking gfx-hal v0.4.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking thread_profiler v0.3.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking relevant v0.4.2
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[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-1.0.69/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"' -C metadata=554bb6b8e07075b2 -C extra-filename=-554bb6b8e07075b2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-32a461668e4c2f4b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5f2a98a903f1d830.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-4182131ee577b5da.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: linking with `cc` failed: signal: 9
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-Wl,--as-needed" "-L" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.0.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.1.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.10.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.11.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.12.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.13.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.14.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.15.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.2.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.3.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.4.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.5.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.6.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.7.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.8.rcgu.o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.build_script_build.b4x81l47-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0" "/opt/rustwide/target/debug/build/wayland-client-4d9805bcc67028d0/build_script_build-4d9805bcc67028d0.1p99hosxdozekcgv.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libwayland_scanner-9220a85b14bdb749.rlib" "/opt/rustwide/target/debug/deps/libxml-d5feb083fd2167f7.rlib" "/opt/rustwide/target/debug/deps/libquote-c8c4589b60ce3921.rlib" "/opt/rustwide/target/debug/deps/libproc_macro2-8115c969f6e9e75a.rlib" "/opt/rustwide/target/debug/deps/libunicode_xid-a81338cd23b23cba.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libproc_macro-5d1162e60f7751bc.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-61556e43b375c2c0.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-787faa8b02fbd963.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-dda4c0b69607e93b.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-4b7dae8949ac132c.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-978e97832b309706.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-073b1b693304b876.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c07f996a53ee6558.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0ae8ed6a282247d0.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-978dd04958b6ebcc.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-14b94bdd9a47d665.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bff7534e4dfcef6c.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-022f1a0e7cd794ec.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ff456575f1773ef0.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3aeb407930ebd519.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-6ab1ee6dbc17ad08.rlib" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-166dae07beec0398.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-761b290f47712921.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: System installed library not found.  Falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "84e33cbe278bbd73778615f7fd22d2e88ac737ffb1729cfeb5ae47f9c6f78e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84e33cbe278bbd73778615f7fd22d2e88ac737ffb1729cfeb5ae47f9c6f78e2e", kill_on_drop: false }`
[INFO] [stdout] 84e33cbe278bbd73778615f7fd22d2e88ac737ffb1729cfeb5ae47f9c6f78e2e