[INFO] cloning repository https://github.com/HappyDustbunny/fern
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HappyDustbunny/fern" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHappyDustbunny%2Ffern", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHappyDustbunny%2Ffern'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1269b509f8759110724eb87fadacd4081d82dae
[INFO] checking HappyDustbunny/fern against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHappyDustbunny%2Ffern" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HappyDustbunny/fern on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HappyDustbunny/fern
[INFO] finished tweaking git repo https://github.com/HappyDustbunny/fern
[INFO] tweaked toml for git repo https://github.com/HappyDustbunny/fern written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/HappyDustbunny/fern already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] 30f305666c556a926e55020b5a9ca2bd7d684ae60409992b7cac406e98adec0f
[INFO] running `Command { std: "docker" "start" "-a" "30f305666c556a926e55020b5a9ca2bd7d684ae60409992b7cac406e98adec0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30f305666c556a926e55020b5a9ca2bd7d684ae60409992b7cac406e98adec0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f305666c556a926e55020b5a9ca2bd7d684ae60409992b7cac406e98adec0f", kill_on_drop: false }`
[INFO] [stdout] 30f305666c556a926e55020b5a9ca2bd7d684ae60409992b7cac406e98adec0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] 2633ea69f3471cf658563c8d3da08f2b01294b98ede0467dba7c1f5b144eeb3d
[INFO] running `Command { std: "docker" "start" "-a" "2633ea69f3471cf658563c8d3da08f2b01294b98ede0467dba7c1f5b144eeb3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling vulkano v0.13.0
[INFO] [stderr]     Checking vk-sys v0.4.0
[INFO] [stderr]     Checking half v1.3.0
[INFO] [stderr]     Checking instant v0.1.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking conrod_winit v0.66.0
[INFO] [stderr]     Checking find_folder v0.3.0
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling cmake v0.1.41
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]     Checking inflate v0.3.4
[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]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking piston-viewport v0.5.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking pennereq v0.3.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling shaderc-sys v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.1.8
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking daggy v0.5.0
[INFO] [stderr]     Checking daggy v0.6.0
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr] error: could not compile `wayland-scanner`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name wayland_scanner /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wayland-scanner-0.21.13/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 -C metadata=52ed9fa6f36a8a94 -C extra-filename=-52ed9fa6f36a8a94 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-14b87d0cfb3a3067.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-3ab6671852ca27d4.rmeta --extern xml=/opt/rustwide/target/debug/deps/libxml-4c5dd1c9038d91d1.rmeta --cap-lints allow --cap-lints=forbid` (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: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2633ea69f3471cf658563c8d3da08f2b01294b98ede0467dba7c1f5b144eeb3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2633ea69f3471cf658563c8d3da08f2b01294b98ede0467dba7c1f5b144eeb3d", kill_on_drop: false }`
[INFO] [stdout] 2633ea69f3471cf658563c8d3da08f2b01294b98ede0467dba7c1f5b144eeb3d