[INFO] cloning repository https://github.com/a-day-old-bagel/expaux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/a-day-old-bagel/expaux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa-day-old-bagel%2Fexpaux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa-day-old-bagel%2Fexpaux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 040ce2321986f0c9a9e5ed8996a705356af5e1d9
[INFO] testing a-day-old-bagel/expaux against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa-day-old-bagel%2Fexpaux" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/a-day-old-bagel/expaux 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/a-day-old-bagel/expaux
[INFO] finished tweaking git repo https://github.com/a-day-old-bagel/expaux
[INFO] tweaked toml for git repo https://github.com/a-day-old-bagel/expaux written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/a-day-old-bagel/expaux 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c6e03fa8adedffff8e1d1ea30d999e2d1d8c90b1b16b3c90bced6a4a58a64f42
[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" "c6e03fa8adedffff8e1d1ea30d999e2d1d8c90b1b16b3c90bced6a4a58a64f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6e03fa8adedffff8e1d1ea30d999e2d1d8c90b1b16b3c90bced6a4a58a64f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e03fa8adedffff8e1d1ea30d999e2d1d8c90b1b16b3c90bced6a4a58a64f42", kill_on_drop: false }`
[INFO] [stdout] c6e03fa8adedffff8e1d1ea30d999e2d1d8c90b1b16b3c90bced6a4a58a64f42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] fc8700e6f9646def7fc8cc4374cecfa18722c77531a811fa44b7b4141a0b0d06
[INFO] running `Command { std: "docker" "start" "-a" "fc8700e6f9646def7fc8cc4374cecfa18722c77531a811fa44b7b4141a0b0d06", kill_on_drop: false }`
[INFO] [stderr]    Compiling phf_shared v0.7.20
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling serde v0.8.20
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling vk-sys v0.2.1
[INFO] [stderr]    Compiling fnv v1.0.5
[INFO] [stderr]    Compiling xml-rs v0.3.5
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling x11-dl v2.11.0
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.9
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling phf_generator v0.7.20
[INFO] [stderr]    Compiling phf v0.7.20
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling cmake v0.1.20
[INFO] [stderr]    Compiling phf_codegen v0.7.20
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.2
[INFO] [stderr]    Compiling vulkano v0.3.1
[INFO] [stderr]    Compiling wayland-scanner v0.7.6
[INFO] [stderr]    Compiling flate2 v0.2.14
[INFO] [stderr]    Compiling wayland-client v0.7.6
[INFO] [stderr]    Compiling png v0.5.2
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling cgmath v0.12.0
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustc_serialize /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.22/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 -C metadata=7773646ab5fc1c03 -C extra-filename=-7773646ab5fc1c03 --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" "fc8700e6f9646def7fc8cc4374cecfa18722c77531a811fa44b7b4141a0b0d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8700e6f9646def7fc8cc4374cecfa18722c77531a811fa44b7b4141a0b0d06", kill_on_drop: false }`
[INFO] [stdout] fc8700e6f9646def7fc8cc4374cecfa18722c77531a811fa44b7b4141a0b0d06