[INFO] cloning repository https://github.com/anchpop/xtr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anchpop/xtr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanchpop%2Fxtr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanchpop%2Fxtr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7824eeecfe397f9dd4cb86609ec6edabeabc1096
[INFO] documenting anchpop/xtr against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanchpop%2Fxtr" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anchpop/xtr on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anchpop/xtr
[INFO] finished tweaking git repo https://github.com/anchpop/xtr
[INFO] tweaked toml for git repo https://github.com/anchpop/xtr written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/anchpop/xtr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1cbc8e4df83335a5450258233cfc3759c6f1ae2c8b5b4706b2794ec6bd5a178
[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" "e1cbc8e4df83335a5450258233cfc3759c6f1ae2c8b5b4706b2794ec6bd5a178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1cbc8e4df83335a5450258233cfc3759c6f1ae2c8b5b4706b2794ec6bd5a178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1cbc8e4df83335a5450258233cfc3759c6f1ae2c8b5b4706b2794ec6bd5a178", kill_on_drop: false }`
[INFO] [stdout] e1cbc8e4df83335a5450258233cfc3759c6f1ae2c8b5b4706b2794ec6bd5a178
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3c6762e46180448c869e3866b2418e7880eb3739d760971e7e350dacd708778
[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" "a3c6762e46180448c869e3866b2418e7880eb3739d760971e7e350dacd708778", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.25
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking instant v0.1.4
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking euclid v0.20.13
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking sid v0.6.1
[INFO] [stderr]     Checking ash v0.30.0
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking gfx-hal v0.5.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking cgmath v0.17.0
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking lyon_geom v0.15.3
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking lyon_path v0.15.2
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking lyon_algorithms v0.15.0
[INFO] [stderr]     Checking lyon_tessellation v0.15.8
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.14.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=882eb82fcf212cd9 -C extra-filename=-882eb82fcf212cd9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-c759f8d07719039e.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-20b9f5fb82bebd1b.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-31c86fe4ea4ade63.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-eae1dd934cd0d2bb.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: System installed library not found.  Falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a3c6762e46180448c869e3866b2418e7880eb3739d760971e7e350dacd708778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c6762e46180448c869e3866b2418e7880eb3739d760971e7e350dacd708778", kill_on_drop: false }`
[INFO] [stdout] a3c6762e46180448c869e3866b2418e7880eb3739d760971e7e350dacd708778
