[INFO] cloning repository https://github.com/adamreichold/b2_backup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamreichold/b2_backup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamreichold%2Fb2_backup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamreichold%2Fb2_backup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c438960d20775b3da10eedf68b9c74b8805cb35
[INFO] testing adamreichold/b2_backup against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamreichold%2Fb2_backup" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamreichold/b2_backup on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/adamreichold/b2_backup
[INFO] finished tweaking git repo https://github.com/adamreichold/b2_backup
[INFO] tweaked toml for git repo https://github.com/adamreichold/b2_backup written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/adamreichold/b2_backup already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 105fc03bbfa4f82852842e1be7534729a78968f6fcb5ea631f931c9f026d5ae9
[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" "105fc03bbfa4f82852842e1be7534729a78968f6fcb5ea631f931c9f026d5ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "105fc03bbfa4f82852842e1be7534729a78968f6fcb5ea631f931c9f026d5ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "105fc03bbfa4f82852842e1be7534729a78968f6fcb5ea631f931c9f026d5ae9", kill_on_drop: false }`
[INFO] [stdout] 105fc03bbfa4f82852842e1be7534729a78968f6fcb5ea631f931c9f026d5ae9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 168546af6d59f164fcf0e9f47f608b2a8b15ac14e7a23c9f77a9dedd7d004ad9
[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" "168546af6d59f164fcf0e9f47f608b2a8b15ac14e7a23c9f77a9dedd7d004ad9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling zstd-safe v3.0.0+zstd.1.4.8
[INFO] [stderr]    Compiling cpuid-bool v0.2.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling clang-sys v1.0.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling zstd-sys v1.4.19+zstd.1.4.8
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling poly1305 v0.6.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling chacha20 v0.6.0
[INFO] [stderr]    Compiling chacha20poly1305 v0.7.1
[INFO] [stderr]    Compiling hashlink v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr] error: could not compile `clang-sys`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name clang_sys /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clang-sys-1.0.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clang_3_5"' --cfg 'feature="clang_3_6"' --cfg 'feature="clang_3_7"' --cfg 'feature="clang_3_8"' --cfg 'feature="clang_3_9"' --cfg 'feature="clang_4_0"' --cfg 'feature="clang_5_0"' --cfg 'feature="clang_6_0"' --cfg 'feature="libloading"' --cfg 'feature="runtime"' -C metadata=e5fdabec3ff1fd7a -C extra-filename=-e5fdabec3ff1fd7a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern glob=/opt/rustwide/target/debug/deps/libglob-35a1b8661089f616.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-675da856250bdc14.rmeta --extern libloading=/opt/rustwide/target/debug/deps/liblibloading-190444a211f3d0ed.rmeta --cap-lints allow --cap-lints=warn` (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" "168546af6d59f164fcf0e9f47f608b2a8b15ac14e7a23c9f77a9dedd7d004ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168546af6d59f164fcf0e9f47f608b2a8b15ac14e7a23c9f77a9dedd7d004ad9", kill_on_drop: false }`
[INFO] [stdout] 168546af6d59f164fcf0e9f47f608b2a8b15ac14e7a23c9f77a9dedd7d004ad9