[INFO] cloning repository https://github.com/gwy15/kindle-web
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gwy15/kindle-web" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgwy15%2Fkindle-web", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgwy15%2Fkindle-web'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f596cdf24a453d8f3fb8b68cb5be9a967b269fa
[INFO] testing gwy15/kindle-web against beta-2025-02-18 for beta-1.86-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgwy15%2Fkindle-web" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gwy15/kindle-web on toolchain beta-2025-02-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gwy15/kindle-web
[INFO] finished tweaking git repo https://github.com/gwy15/kindle-web
[INFO] tweaked toml for git repo https://github.com/gwy15/kindle-web written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gwy15/kindle-web 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" "+beta-2025-02-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbd3f20c3c45325916b2ac8ca6bd9f32503d869cf94f7e9f19a222aeb3fbe787
[INFO] running `Command { std: "docker" "start" "-a" "fbd3f20c3c45325916b2ac8ca6bd9f32503d869cf94f7e9f19a222aeb3fbe787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbd3f20c3c45325916b2ac8ca6bd9f32503d869cf94f7e9f19a222aeb3fbe787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd3f20c3c45325916b2ac8ca6bd9f32503d869cf94f7e9f19a222aeb3fbe787", kill_on_drop: false }`
[INFO] [stdout] fbd3f20c3c45325916b2ac8ca6bd9f32503d869cf94f7e9f19a222aeb3fbe787
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 994250405f61b83ef8ee9c51269e72e0eb867114ab416549170811109369a55a
[INFO] running `Command { std: "docker" "start" "-a" "994250405f61b83ef8ee9c51269e72e0eb867114ab416549170811109369a55a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling bytes v1.6.1
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling rustls-pki-types v1.7.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling untrusted v0.9.0
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling tinyvec v1.8.0
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling rustls v0.23.12
[INFO] [stderr]    Compiling local-waker v0.1.4
[INFO] [stderr]    Compiling zstd-safe v7.2.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.1
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling cc v1.1.6
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling alloc-stdlib v0.2.2
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling regex-lite v0.1.6
[INFO] [stderr]    Compiling anstyle-parse v0.2.5
[INFO] [stderr]    Compiling actix-service v2.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling zstd-sys v2.0.12+zstd.1.5.6
[INFO] [stderr]    Compiling bytestring v1.3.1
[INFO] [stderr]    Compiling brotli-decompressor v4.0.1
[INFO] [stderr]    Compiling actix-utils v3.0.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling colorchoice v1.0.2
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling anstyle-query v1.1.1
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstream v0.6.15
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling local-channel v0.1.5
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling webpki-roots v0.26.1
[INFO] [stderr]    Compiling encoding_rs v0.8.34
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling brotli v6.0.0
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling language-tags v0.3.2
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling winnow v0.6.16
[INFO] [stderr]    Compiling clap_builder v4.5.11
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling rustls-pemfile v2.1.2
[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 "/tmp/rustcMK9y6n"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `language-tags` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmeta1XFdxq"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetaxrImbF/lib.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nu-ansi-term` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/beta-2025-02-18-x86_64-unknown-linux-gnu/bin/rustc --crate-name nu_ansi_term --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nu-ansi-term-0.46.0/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 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("derive_serde_style", "serde"))' -C metadata=8b7214151e29b3a1 -C extra-filename=-f931ee7dde0184c0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern overload=/opt/rustwide/target/debug/deps/liboverload-447f2db329e02fd7.rmeta --cap-lints allow --cap-lints=warn` (exit status: 101)
[INFO] [stderr] error: could not compile `encoding_rs` (lib) due to 1 previous error
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `rustls-pemfile` (lib) due to 1 previous error
[INFO] [stdout] error: failed to build archive at `/opt/rustwide/target/debug/deps/libaho_corasick-847080ddcc800a8c.rlib`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aho-corasick` (lib) due to 1 previous error
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/beta-2025-02-18-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.72/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"' --cfg 'feature="visit-mut"' --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=9840999c9cc29e92 -C extra-filename=-3860ec6910aa569c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c3dd29a6287a876f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-06c0a3ebd054f571.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-772f13ecc3fc189a.rmeta --cap-lints allow --cap-lints=warn` (exit status: 101)
[INFO] [stdout] error: failed to write /tmp/rustciKRuLX/lib.rmeta: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-traits` (lib) due to 1 previous error
[INFO] [stderr] warning: ring@0.17.8: crypto/poly1305/poly1305_vec.c:847:1: fatal error: error writing to /tmp/ccmPbNGH.s: No space left on device
[INFO] [stderr] warning: ring@0.17.8:   847 | }
[INFO] [stderr] warning: ring@0.17.8:       | ^
[INFO] [stderr] warning: ring@0.17.8: compilation terminated.
[INFO] [stderr] warning: ring@0.17.8: ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "include" "-I" "/opt/rustwide/target/debug/build/ring-b040b8fc479b8c6f/out" "-Wall" "-Wextra" "-fvisibility=hidden" "-std=c1x" "-Wall" "-Wbad-function-cast" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wnested-externs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wstrict-prototypes" "-Wundef" "-Wuninitialized" "-g3" "-DNDEBUG" "-o" "/opt/rustwide/target/debug/build/ring-b040b8fc479b8c6f/out/bec76f70393ddef1-poly1305_vec.o" "-c" "crypto/poly1305/poly1305_vec.c" with args cc did not execute successfully (status code exit status: 1).
[INFO] [stderr] error: failed to run custom build command for `ring v0.17.8`
[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/ring-5f0dd900d1900404/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=RING_PREGENERATE_ASM
[INFO] [stderr]   cargo:rustc-env=RING_CORE_PREFIX=ring_core_0_17_8_
[INFO] [stderr]   OPT_LEVEL = Some(0)
[INFO] [stderr]   TARGET = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/ring-b040b8fc479b8c6f/out)
[INFO] [stderr]   HOST = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
[INFO] [stderr]   CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
[INFO] [stderr]   CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CC
[INFO] [stderr]   HOST_CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC
[INFO] [stderr]   CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   RUSTC_WRAPPER = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   DEBUG = Some(true)
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   cargo:warning=crypto/poly1305/poly1305_vec.c:847:1: fatal error: error writing to /tmp/ccmPbNGH.s: No space left on device
[INFO] [stderr]   cargo:warning=  847 | }
[INFO] [stderr]   cargo:warning=      | ^
[INFO] [stderr]   cargo:warning=compilation terminated.
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 1
[INFO] [stderr]   cargo:warning=ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "include" "-I" "/opt/rustwide/target/debug/build/ring-b040b8fc479b8c6f/out" "-Wall" "-Wextra" "-fvisibility=hidden" "-std=c1x" "-Wall" "-Wbad-function-cast" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wnested-externs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wstrict-prototypes" "-Wundef" "-Wuninitialized" "-g3" "-DNDEBUG" "-o" "/opt/rustwide/target/debug/build/ring-b040b8fc479b8c6f/out/bec76f70393ddef1-poly1305_vec.o" "-c" "crypto/poly1305/poly1305_vec.c" with args cc did not execute successfully (status code exit status: 1).
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "include" "-I" "/opt/rustwide/target/debug/build/ring-b040b8fc479b8c6f/out" "-Wall" "-Wextra" "-fvisibility=hidden" "-std=c1x" "-Wall" "-Wbad-function-cast" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wnested-externs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wstrict-prototypes" "-Wundef" "-Wuninitialized" "-g3" "-DNDEBUG" "-o" "/opt/rustwide/target/debug/build/ring-b040b8fc479b8c6f/out/bec76f70393ddef1-poly1305_vec.o" "-c" "crypto/poly1305/poly1305_vec.c" with args cc did not execute successfully (status code exit status: 1).
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: zstd/lib/compress/zstd_compress_literals.c:235:1: fatal error: error writing to /tmp/cc77sPS3.s: No space left on device
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:   235 | }
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:       | ^
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: compilation terminated.
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress_literals.o" "-c" "zstd/lib/compress/zstd_compress_literals.c" with args cc did not execute successfully (status code exit status: 1).cargo:warning=zstd/lib/compress/zstd_compress_sequences.c:442:1: fatal error: error writing to /tmp/ccnYN9ds.s: No space left on device
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:   442 | }
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:       | ^
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: compilation terminated.
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress_sequences.o" "-c" "zstd/lib/compress/zstd_compress_sequences.c" with args cc did not execute successfully (status code exit status: 1).cargo:warning=zstd/lib/compress/zstd_compress_superblock.c:688:1: fatal error: error writing to /tmp/cc7gQFo9.s: No space left on device
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:   688 | }
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:       | ^
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: compilation terminated.
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress_superblock.o" "-c" "zstd/lib/compress/zstd_compress_superblock.c" with args cc did not execute successfully (status code exit status: 1).cargo:warning=zstd/lib/compress/zstd_compress.c:7153:1: fatal error: error writing to /tmp/ccPLqvCK.s: No space left on device
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:  7153 | }
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6:       | ^
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: compilation terminated.
[INFO] [stderr] warning: zstd-sys@2.0.12+zstd.1.5.6: ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress.o" "-c" "zstd/lib/compress/zstd_compress.c" with args cc did not execute successfully (status code exit status: 1).
[INFO] [stderr] error: failed to run custom build command for `zstd-sys v2.0.12+zstd.1.5.6`
[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/zstd-sys-0554d70dcd2118c7/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=ZSTD_SYS_USE_PKG_CONFIG
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out)
[INFO] [stderr]   TARGET = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   OPT_LEVEL = Some(0)
[INFO] [stderr]   HOST = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
[INFO] [stderr]   CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
[INFO] [stderr]   CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CC
[INFO] [stderr]   HOST_CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC
[INFO] [stderr]   CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   RUSTC_WRAPPER = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   DEBUG = Some(true)
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   cargo:warning=zstd/lib/compress/zstd_compress_literals.c:235:1: fatal error: error writing to /tmp/cc77sPS3.s: No space left on device
[INFO] [stderr]   cargo:warning=  235 | }
[INFO] [stderr]   cargo:warning=      | ^
[INFO] [stderr]   cargo:warning=compilation terminated.
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 1
[INFO] [stderr]   cargo:warning=ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress_literals.o" "-c" "zstd/lib/compress/zstd_compress_literals.c" with args cc did not execute successfully (status code exit status: 1).cargo:warning=zstd/lib/compress/zstd_compress_sequences.c:442:1: fatal error: error writing to /tmp/ccnYN9ds.s: No space left on device
[INFO] [stderr]   cargo:warning=  442 | }
[INFO] [stderr]   cargo:warning=      | ^
[INFO] [stderr]   cargo:warning=compilation terminated.
[INFO] [stderr] 
[INFO] [stderr]   exit status: 1
[INFO] [stderr]   cargo:warning=ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress_sequences.o" "-c" "zstd/lib/compress/zstd_compress_sequences.c" with args cc did not execute successfully (status code exit status: 1).cargo:warning=zstd/lib/compress/zstd_compress_superblock.c:688:1: fatal error: error writing to /tmp/cc7gQFo9.s: No space left on device
[INFO] [stderr]   cargo:warning=  688 | }
[INFO] [stderr]   cargo:warning=      | ^
[INFO] [stderr]   cargo:warning=compilation terminated.
[INFO] [stderr] 
[INFO] [stderr]   exit status: 1
[INFO] [stderr]   cargo:warning=ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress_superblock.o" "-c" "zstd/lib/compress/zstd_compress_superblock.c" with args cc did not execute successfully (status code exit status: 1).cargo:warning=zstd/lib/compress/zstd_compress.c:7153:1: fatal error: error writing to /tmp/ccPLqvCK.s: No space left on device
[INFO] [stderr]   cargo:warning= 7153 | }
[INFO] [stderr]   cargo:warning=      | ^
[INFO] [stderr]   cargo:warning=compilation terminated.
[INFO] [stderr] 
[INFO] [stderr]   exit status: 1
[INFO] [stderr]   cargo:warning=ToolExecError: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress.o" "-c" "zstd/lib/compress/zstd_compress.c" with args cc did not execute successfully (status code exit status: 1).
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr]   exit status: 0
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-ffunction-sections" "-fdata-sections" "-fmerge-all-constants" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/opt/rustwide/target/debug/build/zstd-sys-94e6310e0493d8c4/out/1ddd1489cc625d97-zstd_compress.o" "-c" "zstd/lib/compress/zstd_compress.c" with args cc did not execute successfully (status code exit status: 1).
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "994250405f61b83ef8ee9c51269e72e0eb867114ab416549170811109369a55a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994250405f61b83ef8ee9c51269e72e0eb867114ab416549170811109369a55a", kill_on_drop: false }`
[INFO] [stdout] 994250405f61b83ef8ee9c51269e72e0eb867114ab416549170811109369a55a