[INFO] cloning repository https://github.com/zbuc/rust_tower_defense
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zbuc/rust_tower_defense" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzbuc%2Frust_tower_defense", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzbuc%2Frust_tower_defense'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 176726b20e5e21953d8eb9f9424d243dfa8c89d0
[INFO] checking zbuc/rust_tower_defense against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzbuc%2Frust_tower_defense" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zbuc/rust_tower_defense on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zbuc/rust_tower_defense
[INFO] finished tweaking git repo https://github.com/zbuc/rust_tower_defense
[INFO] tweaked toml for git repo https://github.com/zbuc/rust_tower_defense written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/zbuc/rust_tower_defense already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09ea4b737ea2c1f18b8a92e225acae8477e2725d9a39c6d8f2b4b95dbc77286d
[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" "09ea4b737ea2c1f18b8a92e225acae8477e2725d9a39c6d8f2b4b95dbc77286d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09ea4b737ea2c1f18b8a92e225acae8477e2725d9a39c6d8f2b4b95dbc77286d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ea4b737ea2c1f18b8a92e225acae8477e2725d9a39c6d8f2b4b95dbc77286d", kill_on_drop: false }`
[INFO] [stdout] 09ea4b737ea2c1f18b8a92e225acae8477e2725d9a39c6d8f2b4b95dbc77286d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04f574b03b553d8184bc41cfb968bf4a2a8b6d1ace91ae8a29378b2678807bb0
[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" "04f574b03b553d8184bc41cfb968bf4a2a8b6d1ace91ae8a29378b2678807bb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling vulkano v0.11.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking vk-sys v0.4.0
[INFO] [stderr]     Checking half v1.3.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking safe-transmute v0.10.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling bincode v1.1.1
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]    Compiling shaderc v0.3.16
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]     Checking wayland-sys v0.21.11
[INFO] [stderr]    Compiling wayland-scanner v0.21.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]     Checking approx v0.3.1
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking rusttype v0.7.5
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]     Checking crossbeam v0.5.0
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.7
[INFO] [stderr]     Checking andrew v0.1.6
[INFO] [stderr]     Checking tempfile v3.0.6
[INFO] [stderr]     Checking parking_lot v0.7.1
[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-0.12.0/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=fb110a30e10d27cf -C extra-filename=-fb110a30e10d27cf --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-6e0168cce93cc0b1.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-5eb9e0f94cf1912a.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-4496f6103d7c8ced.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-ff4eec5c2360485f.rmeta --cap-lints allow --cap-lints=forbid` (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" "04f574b03b553d8184bc41cfb968bf4a2a8b6d1ace91ae8a29378b2678807bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f574b03b553d8184bc41cfb968bf4a2a8b6d1ace91ae8a29378b2678807bb0", kill_on_drop: false }`
[INFO] [stdout] 04f574b03b553d8184bc41cfb968bf4a2a8b6d1ace91ae8a29378b2678807bb0