[INFO] cloning repository https://github.com/pop-os/cosmic-dock-epoch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pop-os/cosmic-dock-epoch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fcosmic-dock-epoch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fcosmic-dock-epoch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b56316ddcdd3e921b61cf3fe3f69b4bcae437d3
[INFO] testing pop-os/cosmic-dock-epoch against master#23949593103d03a82c7ebc2e84434ce6c6edc561 for pr-115235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fcosmic-dock-epoch" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pop-os/cosmic-dock-epoch on toolchain 23949593103d03a82c7ebc2e84434ce6c6edc561
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/pop-os/cosmic-dock-epoch
[INFO] finished tweaking git repo https://github.com/pop-os/cosmic-dock-epoch
[INFO] tweaked toml for git repo https://github.com/pop-os/cosmic-dock-epoch written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pop-os/cosmic-dock-epoch 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" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: patch for `smithay-client-toolkit` uses the features mechanism. default-features and features will not take effect because the patch dependency does not support this mechanism
[INFO] [stderr]     Updating git repository `https://github.com/smithay/client-toolkit//`
[INFO] [stderr]     Updating git submodule `https://github.com/pop-os/iced.git`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/cosmic-notifications`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/launch-pad.git`
[INFO] [stderr]     Updating git repository `https://github.com/smithay/smithay`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/xdg-shell-wrapper`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded almost v0.2.0
[INFO] [stderr]   Downloaded ron v0.8.1
[INFO] [stderr]   Downloaded wayland-cursor v0.30.0
[INFO] [stderr]   Downloaded cursor-icon v1.0.0
[INFO] [stderr]   Downloaded profiling-procmacros v1.0.10
[INFO] [stderr]   Downloaded async-recursion v1.0.5
[INFO] [stderr]   Downloaded wayland-csd-frame v0.2.2
[INFO] [stderr]   Downloaded gettext-rs v0.7.0
[INFO] [stderr]   Downloaded xml-rs v0.8.17
[INFO] [stderr]   Downloaded strength_reduce v0.2.4
[INFO] [stderr]   Downloaded transpose v0.2.2
[INFO] [stderr]   Downloaded freedesktop-desktop-entry v0.5.0
[INFO] [stderr]   Downloaded gettext-sys v0.21.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5214eb4aadc23d3bb31099247acd1579df7be00c7603496e6c62689454ff385
[INFO] running `Command { std: "docker" "start" "-a" "f5214eb4aadc23d3bb31099247acd1579df7be00c7603496e6c62689454ff385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5214eb4aadc23d3bb31099247acd1579df7be00c7603496e6c62689454ff385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5214eb4aadc23d3bb31099247acd1579df7be00c7603496e6c62689454ff385", kill_on_drop: false }`
[INFO] [stdout] f5214eb4aadc23d3bb31099247acd1579df7be00c7603496e6c62689454ff385
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56c38b465a79de999c2276dd082b60a09c56dc0f8fc510509382ac0231307315
[INFO] running `Command { std: "docker" "start" "-a" "56c38b465a79de999c2276dd082b60a09c56dc0f8fc510509382ac0231307315", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: patch for `smithay-client-toolkit` uses the features mechanism. default-features and features will not take effect because the patch dependency does not support this mechanism
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling libloading v0.8.0
[INFO] [stderr]    Compiling wayland-sys v0.30.1
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling rustix v0.38.11
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling quick-xml v0.28.2
[INFO] [stderr]    Compiling aho-corasick v1.0.5
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling fastrand v2.0.0
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling concurrent-queue v2.2.0
[INFO] [stderr]    Compiling parking v2.1.0
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling drm-sys v0.4.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling wayland-scanner v0.30.1
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling memmap2 v0.7.1
[INFO] [stderr]    Compiling base64 v0.21.3
[INFO] [stderr]    Compiling drm-fourcc v2.2.0
[INFO] [stderr]    Compiling wayland-backend v0.1.2
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling temp-dir v0.1.11
[INFO] [stderr]    Compiling xml-rs v0.8.17
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling gettext-sys v0.21.3
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling xkbcommon v0.5.1
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling gl_generator v0.14.0
[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/23949593103d03a82c7ebc2e84434ce6c6edc561/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.109/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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=88b62b1358a7093a -C extra-filename=-88b62b1358a7093a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c308a930a0e3b3ae.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1425e0fbf51b7cbe.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-27c541bdd3194d90.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" "56c38b465a79de999c2276dd082b60a09c56dc0f8fc510509382ac0231307315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c38b465a79de999c2276dd082b60a09c56dc0f8fc510509382ac0231307315", kill_on_drop: false }`
[INFO] [stdout] 56c38b465a79de999c2276dd082b60a09c56dc0f8fc510509382ac0231307315