[INFO] cloning repository https://github.com/beaux-riel/mulist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beaux-riel/mulist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeaux-riel%2Fmulist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeaux-riel%2Fmulist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 356b41d3eba3cf743c61c99b7ea2dde6fb79affc
[INFO] building beaux-riel/mulist against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeaux-riel%2Fmulist" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/beaux-riel/mulist
[INFO] finished tweaking git repo https://github.com/beaux-riel/mulist
[INFO] tweaked toml for git repo https://github.com/beaux-riel/mulist written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/beaux-riel/mulist on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/beaux-riel/mulist already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded epi v0.15.0
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[INFO] [stderr]   Downloaded rusttype v0.9.3
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[INFO] [stderr]   Downloaded wayland-commons v0.28.6
[INFO] [stderr]   Downloaded xml-rs v0.8.21
[INFO] [stderr]   Downloaded wayland-scanner v0.28.6
[INFO] [stderr]   Downloaded glutin_glx_sys v0.4.0
[INFO] [stderr]   Downloaded block-sys v0.1.0-beta.1
[INFO] [stderr]   Downloaded objc-sys v0.2.0-beta.2
[INFO] [stderr]   Downloaded wayland-sys v0.30.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74d609a33625f435c3775efc23c603d24e4da2c6cd1f15df1b8d163d09250e06
[INFO] running `Command { std: "docker" "start" "-a" "74d609a33625f435c3775efc23c603d24e4da2c6cd1f15df1b8d163d09250e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d609a33625f435c3775efc23c603d24e4da2c6cd1f15df1b8d163d09250e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d609a33625f435c3775efc23c603d24e4da2c6cd1f15df1b8d163d09250e06", kill_on_drop: false }`
[INFO] [stdout] 74d609a33625f435c3775efc23c603d24e4da2c6cd1f15df1b8d163d09250e06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d04f5dcb33b7e89f8157b29116cfd69ef6164a5b82f74a1bf6af941553227fd
[INFO] running `Command { std: "docker" "start" "-a" "4d04f5dcb33b7e89f8157b29116cfd69ef6164a5b82f74a1bf6af941553227fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling xml-rs v0.8.21
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling downcast-rs v1.2.1
[INFO] [stderr]    Compiling libloading v0.8.5
[INFO] [stderr]    Compiling cc v1.1.15
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling xcursor v0.3.8
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling ttf-parser v0.24.1
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling ttf-parser v0.15.2
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling cmake v0.1.51
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling xdg v2.5.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling winit v0.25.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.6
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.8
[INFO] [stderr]    Compiling crossfont v0.5.2
[INFO] [stderr]    Compiling fdeflate v0.3.4
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling emath v0.15.0
[INFO] [stderr]    Compiling atomic_refcell v0.1.13
[INFO] [stderr]    Compiling arrayref v0.3.8
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling kurbo v0.8.3
[INFO] [stderr]    Compiling flate2 v1.0.33
[INFO] [stderr]    Compiling backtrace v0.3.73
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]    Compiling owned_ttf_parser v0.15.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rusttype v0.9.3
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling andrew v0.3.1
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling owned_ttf_parser v0.24.0
[INFO] [stderr]    Compiling mio-misc v1.2.2
[INFO] [stderr]    Compiling ab_glyph v0.2.28
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling raw-window-handle v0.3.4
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling freetype-rs v0.26.0
[INFO] [stderr]    Compiling png v0.17.13
[INFO] [stderr]    Compiling epaint v0.15.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling gimli v0.29.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling object v0.36.3
[INFO] [stderr]    Compiling glium v0.30.2
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling raw-window-handle v0.5.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling wayland-cursor v0.29.5
[INFO] [stderr]    Compiling egui v0.15.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ad85bc524b1ad696e42061ad8338d382dffbdbe5/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.76/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=7eb110b585b42ec0 -C extra-filename=-24ebdd257539179a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-90f4d189e3c1781a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0660da8593602ac0.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f2de522ba645d884.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" "4d04f5dcb33b7e89f8157b29116cfd69ef6164a5b82f74a1bf6af941553227fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d04f5dcb33b7e89f8157b29116cfd69ef6164a5b82f74a1bf6af941553227fd", kill_on_drop: false }`
[INFO] [stdout] 4d04f5dcb33b7e89f8157b29116cfd69ef6164a5b82f74a1bf6af941553227fd