[INFO] cloning repository https://github.com/SiegeEngine/siege-example-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SiegeEngine/siege-example-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiegeEngine%2Fsiege-example-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiegeEngine%2Fsiege-example-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d63627b04dfcd43a00a0eba49d03bb96989a719f
[INFO] testing SiegeEngine/siege-example-client against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiegeEngine%2Fsiege-example-client" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SiegeEngine/siege-example-client 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] started tweaking git repo https://github.com/SiegeEngine/siege-example-client
[INFO] finished tweaking git repo https://github.com/SiegeEngine/siege-example-client
[INFO] tweaked toml for git repo https://github.com/SiegeEngine/siege-example-client written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/SiegeEngine/siege-example-client 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] [stderr]     Blocking waiting for file lock on package cache
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01b9dcb8067b65d69cb9b872071dd845ca7069023f4d61057d88a1b531e9af52
[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" "01b9dcb8067b65d69cb9b872071dd845ca7069023f4d61057d88a1b531e9af52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01b9dcb8067b65d69cb9b872071dd845ca7069023f4d61057d88a1b531e9af52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b9dcb8067b65d69cb9b872071dd845ca7069023f4d61057d88a1b531e9af52", kill_on_drop: false }`
[INFO] [stdout] 01b9dcb8067b65d69cb9b872071dd845ca7069023f4d61057d88a1b531e9af52
[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=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f7b3916626a182b295354709ea687bc013d6bdabdcd2fb93321aff250e87e3d9
[INFO] running `Command { std: "docker" "start" "-a" "f7b3916626a182b295354709ea687bc013d6bdabdcd2fb93321aff250e87e3d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.51
[INFO] [stderr]    Compiling token_store v0.1.2
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling vks v0.21.0
[INFO] [stderr]    Compiling spiral v0.1.9
[INFO] [stderr]    Compiling owning_ref v0.2.4
[INFO] [stderr]    Compiling glsl-to-spirv-macros v0.1.1
[INFO] [stderr]    Compiling crossbeam v0.3.2
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling stb_truetype v0.2.2 (https://github.com/SiegeEngine/stb_truetype-rs#af0d35d3)
[INFO] [stderr]    Compiling inflate v0.4.2
[INFO] [stderr]    Compiling zstd-sys v1.4.3+zstd.1.3.4
[INFO] [stderr]    Compiling x11-dl v2.17.5
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling tempfile v3.0.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling syn v0.13.7
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.4
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling backtrace v0.3.7
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rusttype v0.5.2 (https://github.com/SiegeEngine/rusttype#50f287e5)
[INFO] [stderr]    Compiling parking_lot v0.3.8
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling wayland-sys v0.12.5
[INFO] [stderr]    Compiling chashmap v2.2.0
[INFO] [stderr]    Compiling ddsfile v0.3.0-unstable (https://github.com/SiegeEngine/ddsfile#90fdaa21)
[INFO] [stderr]    Compiling ddsfile v0.2.3
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.51/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="default"' --cfg 'feature="std"' -C metadata=c49edfb5cfd1db5e -C extra-filename=-c49edfb5cfd1db5e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "f7b3916626a182b295354709ea687bc013d6bdabdcd2fb93321aff250e87e3d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b3916626a182b295354709ea687bc013d6bdabdcd2fb93321aff250e87e3d9", kill_on_drop: false }`
[INFO] [stdout] f7b3916626a182b295354709ea687bc013d6bdabdcd2fb93321aff250e87e3d9