[INFO] cloning repository https://github.com/washed/drempelbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/washed/drempelbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwashed%2Fdrempelbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwashed%2Fdrempelbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57266b9b739f9d44e85346ca308c9a0800ba31e6
[INFO] checking washed/drempelbox against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwashed%2Fdrempelbox" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/washed/drempelbox on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/washed/drempelbox
[INFO] finished tweaking git repo https://github.com/washed/drempelbox
[INFO] tweaked toml for git repo https://github.com/washed/drempelbox written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/washed/drempelbox 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spidev v0.5.2
[INFO] [stderr]   Downloaded system_shutdown v4.0.1
[INFO] [stderr]   Downloaded sysfs_gpio v0.6.1
[INFO] [stderr]   Downloaded linux-embedded-hal v0.3.2
[INFO] [stderr]   Downloaded librespot-metadata v0.4.2
[INFO] [stderr]   Downloaded shannon v0.2.0
[INFO] [stderr]   Downloaded librespot-connect v0.4.2
[INFO] [stderr]   Downloaded aes-ctr v0.6.0
[INFO] [stderr]   Downloaded librespot-playback v0.4.2
[INFO] [stderr]   Downloaded librespot v0.4.2
[INFO] [stderr]   Downloaded protobuf-codegen-pure v2.28.0
[INFO] [stderr]   Downloaded rppal v0.16.1
[INFO] [stderr]   Downloaded libmdns v0.7.5
[INFO] [stderr]   Downloaded protobuf-codegen v2.28.0
[INFO] [stderr]   Downloaded librespot-core v0.4.2
[INFO] [stderr]   Downloaded gpio-cdev v0.5.1
[INFO] [stderr]   Downloaded librespot-audio v0.4.2
[INFO] [stderr]   Downloaded hyper-proxy v0.9.1
[INFO] [stderr]   Downloaded librespot-protocol v0.4.2
[INFO] [stderr]   Downloaded vergen v3.2.0
[INFO] [stderr]   Downloaded librespot-discovery v0.4.2
[INFO] [stderr]   Downloaded i2cdev v0.5.1
[INFO] [stderr]   Downloaded value-bag v1.4.3
[INFO] [stderr]   Downloaded mfrc522 v0.6.1
[INFO] [stderr]   Downloaded rodio v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29c0fae49c007cb224d90490dd29a2b211f471e6c09aebf06af382094a0f5e4f
[INFO] running `Command { std: "docker" "start" "-a" "29c0fae49c007cb224d90490dd29a2b211f471e6c09aebf06af382094a0f5e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29c0fae49c007cb224d90490dd29a2b211f471e6c09aebf06af382094a0f5e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c0fae49c007cb224d90490dd29a2b211f471e6c09aebf06af382094a0f5e4f", kill_on_drop: false }`
[INFO] [stdout] 29c0fae49c007cb224d90490dd29a2b211f471e6c09aebf06af382094a0f5e4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85be4d9cfed4166fa321eafd391302d2585afefbfe2f421bc6ba6d93de59774a
[INFO] running `Command { std: "docker" "start" "-a" "85be4d9cfed4166fa321eafd391302d2585afefbfe2f421bc6ba6d93de59774a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking value-bag v1.4.3
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling iana-time-zone v0.1.59
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking headers v0.3.9
[INFO] [stderr]     Checking aes-soft v0.6.4
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking async-lock v3.2.0
[INFO] [stderr]     Checking futures-lite v2.1.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]     Checking thread-id v4.2.1
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling winnow v0.5.33
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking shannon v0.2.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking async-channel v2.1.1
[INFO] [stderr]     Checking ctr v0.6.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking aes-ctr v0.6.0
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking symphonia-core v0.5.3
[INFO] [stderr]    Compiling librespot-core v0.4.2
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]    Compiling protobuf-codegen v2.28.0
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]     Checking if-addrs v0.7.0
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]     Checking alsa v0.6.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]     Checking nix v0.24.3
[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/385fa9d845dd326c6bbfd58c22244215e431948a/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-2.0.48/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="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=2b12322f8764aa5f -C extra-filename=-2b12322f8764aa5f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6b805b9fa7d637e0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-764b741d9a0ef58a.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-7b828347d8713ecd.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" "85be4d9cfed4166fa321eafd391302d2585afefbfe2f421bc6ba6d93de59774a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85be4d9cfed4166fa321eafd391302d2585afefbfe2f421bc6ba6d93de59774a", kill_on_drop: false }`
[INFO] [stdout] 85be4d9cfed4166fa321eafd391302d2585afefbfe2f421bc6ba6d93de59774a