[INFO] cloning repository https://github.com/pickfire/dwm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pickfire/dwm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpickfire%2Fdwm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpickfire%2Fdwm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da775471ae2f725d804193cde8ee574db1358f4e
[INFO] testing pickfire/dwm against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpickfire%2Fdwm" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pickfire/dwm 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/pickfire/dwm
[INFO] finished tweaking git repo https://github.com/pickfire/dwm
[INFO] tweaked toml for git repo https://github.com/pickfire/dwm written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/pickfire/dwm 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 5052a180886a6629eaf1639f074a22712b1276d5c0ba288ee5d2988780825a56
[INFO] running `Command { std: "docker" "start" "-a" "5052a180886a6629eaf1639f074a22712b1276d5c0ba288ee5d2988780825a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5052a180886a6629eaf1639f074a22712b1276d5c0ba288ee5d2988780825a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5052a180886a6629eaf1639f074a22712b1276d5c0ba288ee5d2988780825a56", kill_on_drop: false }`
[INFO] [stdout] 5052a180886a6629eaf1639f074a22712b1276d5c0ba288ee5d2988780825a56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] fe15d063fe62272eeef73a60d2f62cdf847ec173be4f049fae4f17c6cc6a7311
[INFO] running `Command { std: "docker" "start" "-a" "fe15d063fe62272eeef73a60d2f62cdf847ec173be4f049fae4f17c6cc6a7311", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling x11rb v0.7.0
[INFO] [stderr] error: could not compile `x11rb`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name x11rb --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/x11rb-0.7.0/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 --cfg 'feature="all-extensions"' --cfg 'feature="composite"' --cfg 'feature="damage"' --cfg 'feature="dpms"' --cfg 'feature="dri2"' --cfg 'feature="dri3"' --cfg 'feature="glx"' --cfg 'feature="present"' --cfg 'feature="randr"' --cfg 'feature="record"' --cfg 'feature="render"' --cfg 'feature="res"' --cfg 'feature="screensaver"' --cfg 'feature="shape"' --cfg 'feature="shm"' --cfg 'feature="sync"' --cfg 'feature="xevie"' --cfg 'feature="xf86dri"' --cfg 'feature="xf86vidmode"' --cfg 'feature="xfixes"' --cfg 'feature="xinerama"' --cfg 'feature="xinput"' --cfg 'feature="xkb"' --cfg 'feature="xprint"' --cfg 'feature="xselinux"' --cfg 'feature="xtest"' --cfg 'feature="xv"' --cfg 'feature="xvmc"' -C metadata=7a527325c5e5f4d1 -C extra-filename=-7a527325c5e5f4d1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern gethostname=/opt/rustwide/target/debug/deps/libgethostname-7e426081694818cf.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-aa6503eaaac13667.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "fe15d063fe62272eeef73a60d2f62cdf847ec173be4f049fae4f17c6cc6a7311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe15d063fe62272eeef73a60d2f62cdf847ec173be4f049fae4f17c6cc6a7311", kill_on_drop: false }`
[INFO] [stdout] fe15d063fe62272eeef73a60d2f62cdf847ec173be4f049fae4f17c6cc6a7311