[INFO] cloning repository https://github.com/bill-pace/assignment-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bill-pace/assignment-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbill-pace%2Fassignment-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbill-pace%2Fassignment-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24c1753f24eb1b25d0e11f4878be61ed0e9ae0b8
[INFO] building bill-pace/assignment-solver against try#3bbb5242a8064de4ca3af4036745ddf603ddaa85 for pr-101929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbill-pace%2Fassignment-solver" "/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/bill-pace/assignment-solver on toolchain 3bbb5242a8064de4ca3af4036745ddf603ddaa85
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bill-pace/assignment-solver
[INFO] finished tweaking git repo https://github.com/bill-pace/assignment-solver
[INFO] tweaked toml for git repo https://github.com/bill-pace/assignment-solver written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/bill-pace/assignment-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a77fdd7ddb021c850bc645afd6f91a2c825524e1d15c0a2deb5eab51eb721fc
[INFO] running `Command { std: "docker" "start" "-a" "2a77fdd7ddb021c850bc645afd6f91a2c825524e1d15c0a2deb5eab51eb721fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a77fdd7ddb021c850bc645afd6f91a2c825524e1d15c0a2deb5eab51eb721fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a77fdd7ddb021c850bc645afd6f91a2c825524e1d15c0a2deb5eab51eb721fc", kill_on_drop: false }`
[INFO] [stdout] 2a77fdd7ddb021c850bc645afd6f91a2c825524e1d15c0a2deb5eab51eb721fc
[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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56551302dedcf09e9a6f3d405f00f4eeb3e4a4674c81f97dbdbf9815e4f2ca0b
[INFO] running `Command { std: "docker" "start" "-a" "56551302dedcf09e9a6f3d405f00f4eeb3e4a4674c81f97dbdbf9815e4f2ca0b", 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] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling once_cell v1.13.1
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cfg-expr v0.10.3
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling crossfont v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]    Compiling miniz_oxide v0.5.3
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling ahash v0.8.0
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling ttf-parser v0.15.0
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.5
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling raw-window-handle v0.5.0
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling nix v0.24.2
[INFO] [stderr]    Compiling memmap2 v0.5.7
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling png v0.17.5
[INFO] [stderr]    Compiling tracing-core v0.1.26
[INFO] [stderr]    Compiling freetype-rs v0.26.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.8
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling tracing v0.1.34
[INFO] [stderr]    Compiling gethostname v0.2.3
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]    Compiling mio v0.8.3
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling glow v0.11.2
[INFO] [stderr]    Compiling rfd v0.10.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling owned_ttf_parser v0.15.0
[INFO] [stderr]    Compiling ab_glyph v0.2.15
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling webbrowser v0.7.1
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling system-deps v6.0.2
[INFO] [stderr]    Compiling wayland-commons v0.29.4
[INFO] [stderr]    Compiling x11rb v0.9.0
[INFO] [stderr]    Compiling glib-sys v0.15.10
[INFO] [stderr]    Compiling gobject-sys v0.15.10
[INFO] [stderr]    Compiling atk-sys v0.15.1
[INFO] [stderr]    Compiling gio-sys v0.15.10
[INFO] [stderr]    Compiling gdk-sys v0.15.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.15.10
[INFO] [stderr]    Compiling pango-sys v0.15.10
[INFO] [stderr]    Compiling cairo-sys-rs v0.15.1
[INFO] [stderr]    Compiling gtk-sys v0.15.3
[INFO] [stderr]    Compiling wayland-cursor v0.29.4
[INFO] [stderr]    Compiling wayland-egl v0.29.4
[INFO] [stderr]    Compiling bytemuck_derive v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling foreign-types-macros v0.2.2
[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-0.9.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=23c0cf07a88f4c95 -C extra-filename=-23c0cf07a88f4c95 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern gethostname=/opt/rustwide/target/debug/deps/libgethostname-1cf11cf13ab1d2a6.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-9b462ba7b1e594bd.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "56551302dedcf09e9a6f3d405f00f4eeb3e4a4674c81f97dbdbf9815e4f2ca0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56551302dedcf09e9a6f3d405f00f4eeb3e4a4674c81f97dbdbf9815e4f2ca0b", kill_on_drop: false }`
[INFO] [stdout] 56551302dedcf09e9a6f3d405f00f4eeb3e4a4674c81f97dbdbf9815e4f2ca0b