[INFO] cloning repository https://github.com/zhaoyangwuuuu/sudoku-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhaoyangwuuuu/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3853d27440f8f94a9d62784ad4b5e7840c6ee90f
[INFO] checking zhaoyangwuuuu/sudoku-solver against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zhaoyangwuuuu/sudoku-solver on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zhaoyangwuuuu/sudoku-solver
[INFO] finished tweaking git repo https://github.com/zhaoyangwuuuu/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/zhaoyangwuuuu/sudoku-solver written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zhaoyangwuuuu/sudoku-solver 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 947912c1ac3de9a437c9d94b488696e334546f76de1c45b43579faf68188d06c
[INFO] running `Command { std: "docker" "start" "-a" "947912c1ac3de9a437c9d94b488696e334546f76de1c45b43579faf68188d06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "947912c1ac3de9a437c9d94b488696e334546f76de1c45b43579faf68188d06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947912c1ac3de9a437c9d94b488696e334546f76de1c45b43579faf68188d06c", kill_on_drop: false }`
[INFO] [stdout] 947912c1ac3de9a437c9d94b488696e334546f76de1c45b43579faf68188d06c
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7765d5cbf7884060c09938406d543a73e0d15e6bf2d3da5f98665946a113bc45
[INFO] running `Command { std: "docker" "start" "-a" "7765d5cbf7884060c09938406d543a73e0d15e6bf2d3da5f98665946a113bc45", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking libloading v0.8.1
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]    Compiling syn v2.0.40
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]     Checking event-listener v4.0.0
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling winnow v0.5.28
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking async-lock v3.2.0
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking futures-lite v2.1.0
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking async-task v4.5.0
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling zvariant_utils v1.0.1
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking async-channel v2.1.1
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking ttf-parser v0.20.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling bytemuck_derive v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling enumflags2_derive v0.7.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling zvariant_derive v3.15.0
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking owned_ttf_parser v0.20.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.11
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking ab_glyph v0.2.23
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling zbus_macros v3.14.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling async-recursion v1.0.5
[INFO] [stderr]    Compiling serde_repr v0.1.17
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]     Checking fdeflate v0.3.1
[INFO] [stderr]     Checking xdg-home v1.0.0
[INFO] [stderr]     Checking async-broadcast v0.5.1
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]     Checking ordered-stream v0.2.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking xcursor v0.3.5
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking strict-num v0.1.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/arrayref-15cb66bf1d25ae8c.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/arrayref-15cb66bf1d25ae8c/dep-lib-arrayref`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmeta8Iiahi/lib.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nix` (lib) due to 1 previous error
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaWK79h3"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `percent-encoding` (lib) due to 1 previous error
[INFO] [stderr] error: failed to run custom build command for `wayland-protocols v0.29.5`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/wayland-protocols-7c2d0fa5b2e1a0be/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed-env=CARGO_FEATURE_CLIENT
[INFO] [stderr]   cargo:rerun-if-changed-env=CARGO_FEATURE_SERVER
[INFO] [stderr]   cargo:rerun-if-changed-env=CARGO_FEATURE_UNSTABLE_PROTOCOLS
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/stable/presentation-time/presentation-time.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/stable/viewporter/viewporter.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/stable/xdg-shell/xdg-shell.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/staging/xdg-activation/xdg-activation-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./misc/gtk-primary-selection.xml
[INFO] [stderr]   cargo:rerun-if-changed=./misc/input-method-unstable-v2.xml
[INFO] [stderr]   cargo:rerun-if-changed=./misc/server-decoration.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/fullscreen-shell/fullscreen-shell-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/idle-inhibit/idle-inhibit-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/input-method/input-method-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/input-timestamps/input-timestamps-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/keyboard-shortcuts-inhibit/keyboard-shortcuts-inhibit-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/linux-dmabuf/linux-dmabuf-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/linux-explicit-synchronization/linux-explicit-synchronization-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/pointer-constraints/pointer-constraints-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/pointer-gestures/pointer-gestures-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/primary-selection/primary-selection-unstable-v1.xml
[INFO] [stderr]   cargo:rerun-if-changed=./protocols/unstable/relative-pointer/relative-pointer-unstable-v1.xml
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'ceab6128fa48a616bfd3e3adf4bc80133b8ee223'.
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/wayland-scanner-0.29.5/src/lib.rs:156:40:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 28, kind: StorageFull, message: "No space left on device" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x561085ab82a5 - std::backtrace_rs::backtrace::libunwind::trace::he59ed1f6310a89db
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x561085ab82a5 - std::backtrace_rs::backtrace::trace_unsynchronized::h6df48fc4d4dfcd06
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x561085ab82a5 - std::sys_common::backtrace::_print_fmt::h913519b97242ff76
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x561085ab82a5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h13de4b2243b3529a
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x561085ad980b - core::fmt::rt::Argument::fmt::h38359000df222df5
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x561085ad980b - core::fmt::write::h09792d099db8c4ce
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/fmt/mod.rs:1153:17
[INFO] [stderr]      6:     0x561085ab620f - std::io::Write::write_fmt::h42e7b681a9beaf4e
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/io/mod.rs:1843:15
[INFO] [stderr]      7:     0x561085ab807e - std::sys_common::backtrace::_print::h70f8b37b4f167097
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x561085ab807e - std::sys_common::backtrace::print::h27748824a837f210
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x561085ab9289 - std::panicking::default_hook::{{closure}}::hc8fd06074a6fbb63
[INFO] [stderr]     10:     0x561085ab8ff3 - std::panicking::default_hook::ha4bd1ecab3ae33e7
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:291:9
[INFO] [stderr]     11:     0x561085ab9724 - std::panicking::rust_panic_with_hook::h087fd27556b6edb6
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:788:13
[INFO] [stderr]     12:     0x561085ab9606 - std::panicking::begin_panic_handler::{{closure}}::hfba7f507ddcc9465
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x561085ab8769 - std::sys_common::backtrace::__rust_end_short_backtrace::h9a9f7575e226ea27
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x561085ab9337 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x5610859dac06 - core::panicking::panic_fmt::h1705551aae729902
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x5610859db016 - core::result::unwrap_failed::h35d589c35a07ab6d
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/result.rs:1654:5
[INFO] [stderr]     17:     0x5610859dbf8b - wayland_scanner::generate_code_with_destructor_events::hb110df5301715a2b
[INFO] [stderr]     18:     0x5610859dfe31 - build_script_build::generate_protocol::h6b4f5733810ec23b
[INFO] [stderr]     19:     0x5610859e14ea - build_script_build::main::h0d50925edb3fd3c1
[INFO] [stderr]     20:     0x5610859ed423 - core::ops::function::FnOnce::call_once::h8755f20df9ea68ad
[INFO] [stderr]     21:     0x5610859efa76 - std::sys_common::backtrace::__rust_begin_short_backtrace::hfe06b7c642de44cb
[INFO] [stderr]     22:     0x5610859dc9b9 - std::rt::lang_start::{{closure}}::h9665aa6b3ca631e2
[INFO] [stderr]     23:     0x561085ab2f68 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h9f523d8f6b1fcff2
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     24:     0x561085ab2f68 - std::panicking::try::do_call::h19b032b8045658db
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:552:40
[INFO] [stderr]     25:     0x561085ab2f68 - std::panicking::try::h507b2a26a7ad2631
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:516:19
[INFO] [stderr]     26:     0x561085ab2f68 - std::panic::catch_unwind::hff52f60a0d405245
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panic.rs:149:14
[INFO] [stderr]     27:     0x561085ab2f68 - std::rt::lang_start_internal::{{closure}}::he368883b64446176
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/rt.rs:143:48
[INFO] [stderr]     28:     0x561085ab2f68 - std::panicking::try::do_call::he14947d22dd68c09
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:552:40
[INFO] [stderr]     29:     0x561085ab2f68 - std::panicking::try::h303b136a82db2f42
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panicking.rs:516:19
[INFO] [stderr]     30:     0x561085ab2f68 - std::panic::catch_unwind::h2c163035acb555be
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/panic.rs:149:14
[INFO] [stderr]     31:     0x561085ab2f68 - std::rt::lang_start_internal::h59713dd0b2ce8c81
[INFO] [stderr]                                  at /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/rt.rs:143:20
[INFO] [stderr]     32:     0x5610859dc997 - std::rt::lang_start::hc8eb2fb92785fc37
[INFO] [stderr]     33:     0x5610859e21b5 - main
[INFO] [stderr]     34:     0x7fa4a39a4d90 - <unknown>
[INFO] [stderr]     35:     0x7fa4a39a4e40 - __libc_start_main
[INFO] [stderr]     36:     0x5610859db2f5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmeta6DwBIw"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zbus_macros` (lib)
[INFO] [stderr] error: could not compile `lock_api` (lib) due to 1 previous error
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaDBZSd9"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `png` (lib) due to 1 previous error
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetavS9csS"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7765d5cbf7884060c09938406d543a73e0d15e6bf2d3da5f98665946a113bc45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7765d5cbf7884060c09938406d543a73e0d15e6bf2d3da5f98665946a113bc45", kill_on_drop: false }`
[INFO] [stdout] 7765d5cbf7884060c09938406d543a73e0d15e6bf2d3da5f98665946a113bc45
[INFO] checking zhaoyangwuuuu/sudoku-solver against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] /workspace/builds/worker-7-tc2/source/.git/refs/heads: No space left on device
[INFO] checking zhaoyangwuuuu/sudoku-solver against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-rebase.sample' to '/workspace/builds/worker-7-tc2/source/.git/hooks/pre-rebase.sample': No space left on device
[INFO] checking zhaoyangwuuuu/sudoku-solver against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-receive.sample' to '/workspace/builds/worker-7-tc2/source/.git/hooks/pre-receive.sample': No space left on device
[INFO] checking zhaoyangwuuuu/sudoku-solver against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] /workspace/builds/worker-7-tc2/source/.git: No space left on device
[INFO] checking zhaoyangwuuuu/sudoku-solver against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhaoyangwuuuu%2Fsudoku-solver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create work tree dir '/workspace/builds/worker-7-tc2/source': No space left on device
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/zhaoyangwuuuu/sudoku-solver
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.