[INFO] fetching crate earbuds 0.1.9...
[INFO] testing earbuds-0.1.9 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate earbuds 0.1.9 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate earbuds 0.1.9 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate earbuds 0.1.9
[INFO] finished tweaking crates.io crate earbuds 0.1.9
[INFO] tweaked toml for crates.io crate earbuds 0.1.9 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate earbuds 0.1.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zvariant v2.8.0
[INFO] [stderr]   Downloaded darling v0.5.0
[INFO] [stderr]   Downloaded os_type v2.3.0
[INFO] [stderr]   Downloaded darling_core v0.5.0
[INFO] [stderr]   Downloaded clap_generate v3.0.0-beta.2
[INFO] [stderr]   Downloaded bluetooth-serial-port-async v0.6.3
[INFO] [stderr]   Downloaded from_variants_impl v0.4.0
[INFO] [stderr]   Downloaded zvariant_derive v2.8.0
[INFO] [stderr]   Downloaded notify-rust v4.5.2
[INFO] [stderr]   Downloaded ofiles v0.2.0
[INFO] [stderr]   Downloaded rust-pulsectl-fork v0.2.12
[INFO] [stderr]   Downloaded libpulse-sys v1.19.1
[INFO] [stderr]   Downloaded libpulse-binding v2.24.0
[INFO] [stderr]   Downloaded mpris v2.0.0-rc2
[INFO] [stderr]   Downloaded darling_macro v0.5.0
[INFO] [stderr]   Downloaded from_variants v0.4.0
[INFO] [stderr]   Downloaded winrt-notification v0.2.4
[INFO] [stderr]   Downloaded galaxy_buds_rs v0.2.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c14d54eec81f2b7bdef17ee417dbf19cf23998330ccb61fffe95d9c8ce8cc67
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c14d54eec81f2b7bdef17ee417dbf19cf23998330ccb61fffe95d9c8ce8cc67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c14d54eec81f2b7bdef17ee417dbf19cf23998330ccb61fffe95d9c8ce8cc67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c14d54eec81f2b7bdef17ee417dbf19cf23998330ccb61fffe95d9c8ce8cc67", kill_on_drop: false }`
[INFO] [stdout] 1c14d54eec81f2b7bdef17ee417dbf19cf23998330ccb61fffe95d9c8ce8cc67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3d6d36f86c6c0536ace36b46cfe5a673bd58759cff84b0c178d7afa0694aa90
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f3d6d36f86c6c0536ace36b46cfe5a673bd58759cff84b0c178d7afa0694aa90", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling libpulse-sys v1.19.1
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling derive_is_enum_variant v0.1.1
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling object v0.26.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling dbus v0.8.4
[INFO] [stderr]    Compiling dbus v0.6.5
[INFO] [stderr]    Compiling nix v0.22.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling enum-kinds v0.4.1
[INFO] [stderr]    Compiling nb-connect v1.2.0
[INFO] [stderr]    Compiling os_type v2.3.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling blurz v0.4.0
[INFO] [stderr]    Compiling darling_core v0.5.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.74/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --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"' -C metadata=8f8e68e1c17a7579 -C extra-filename=-8f8e68e1c17a7579 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2b187afb25f696e1.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1b89975272fbbc51.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f3d6d36f86c6c0536ace36b46cfe5a673bd58759cff84b0c178d7afa0694aa90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3d6d36f86c6c0536ace36b46cfe5a673bd58759cff84b0c178d7afa0694aa90", kill_on_drop: false }`
[INFO] [stdout] f3d6d36f86c6c0536ace36b46cfe5a673bd58759cff84b0c178d7afa0694aa90