[INFO] cloning repository https://github.com/hoverkite/hoverkite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hoverkite/hoverkite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoverkite%2Fhoverkite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoverkite%2Fhoverkite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb80350bee8893c64adf1ab7b0a117835bc1c99c
[INFO] checking hoverkite/hoverkite against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoverkite%2Fhoverkite" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hoverkite/hoverkite on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hoverkite/hoverkite
[INFO] finished tweaking git repo https://github.com/hoverkite/hoverkite
[INFO] tweaked toml for git repo https://github.com/hoverkite/hoverkite written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/hoverkite/hoverkite already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eef0b2e66babf7a37a61556c5bb035637e1d13e640f90d23b5051a39c0c8be02
[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" "eef0b2e66babf7a37a61556c5bb035637e1d13e640f90d23b5051a39c0c8be02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eef0b2e66babf7a37a61556c5bb035637e1d13e640f90d23b5051a39c0c8be02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eef0b2e66babf7a37a61556c5bb035637e1d13e640f90d23b5051a39c0c8be02", kill_on_drop: false }`
[INFO] [stdout] eef0b2e66babf7a37a61556c5bb035637e1d13e640f90d23b5051a39c0c8be02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4cd7cb725c609ed93abfa142f2bd7f4cb59d3120ee1dd03577eea40dc0fa60f
[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" "b4cd7cb725c609ed93abfa142f2bd7f4cb59d3120ee1dd03577eea40dc0fa60f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking arrayvec v0.7.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling mac_address v1.1.1
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking pollster v0.2.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking local_ipaddress v0.1.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling test-case v1.1.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking mqttbytes v0.1.0
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking eyre v0.6.5
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling displaydoc v0.2.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling async_io_stream v0.2.0
[INFO] [stderr]    Compiling ws_stream_tungstenite v0.4.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr] error: could not compile `gimli`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gimli --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gimli-0.24.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="read"' -C metadata=dad4f204aa8f1c38 -C extra-filename=-dad4f204aa8f1c38 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "b4cd7cb725c609ed93abfa142f2bd7f4cb59d3120ee1dd03577eea40dc0fa60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4cd7cb725c609ed93abfa142f2bd7f4cb59d3120ee1dd03577eea40dc0fa60f", kill_on_drop: false }`
[INFO] [stdout] b4cd7cb725c609ed93abfa142f2bd7f4cb59d3120ee1dd03577eea40dc0fa60f