[INFO] cloning repository https://github.com/mozilla-services/syncstorage-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mozilla-services/syncstorage-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla-services%2Fsyncstorage-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla-services%2Fsyncstorage-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04b2437816b2b653f0143fa333d1e61230466cb3
[INFO] testing mozilla-services/syncstorage-rs against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla-services%2Fsyncstorage-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mozilla-services/syncstorage-rs on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mozilla-services/syncstorage-rs
[INFO] finished tweaking git repo https://github.com/mozilla-services/syncstorage-rs
[INFO] tweaked toml for git repo https://github.com/mozilla-services/syncstorage-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mozilla-services/syncstorage-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55262d416c79a9a69cb56eb19d7ffaaf09eea1d88a650623d985e99a90b9c070
[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" "55262d416c79a9a69cb56eb19d7ffaaf09eea1d88a650623d985e99a90b9c070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55262d416c79a9a69cb56eb19d7ffaaf09eea1d88a650623d985e99a90b9c070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55262d416c79a9a69cb56eb19d7ffaaf09eea1d88a650623d985e99a90b9c070", kill_on_drop: false }`
[INFO] [stdout] 55262d416c79a9a69cb56eb19d7ffaaf09eea1d88a650623d985e99a90b9c070
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4c301847e2ef6524eebdeab91613db892a77bb74342c3509c5a22be7487af54
[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" "f4c301847e2ef6524eebdeab91613db892a77bb74342c3509c5a22be7487af54", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.135
[INFO] [stderr]    Compiling serde v1.0.135
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling pin-project-internal v0.4.29
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling copyless v0.1.5
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]    Compiling erased-serde v0.3.18
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling crc32fast v1.3.1
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling protobuf v2.25.2
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling arc-swap v1.5.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling slog-async v2.7.0
[INFO] [stderr]    Compiling curl v0.4.42
[INFO] [stderr]    Compiling hawk v3.2.1
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling woothee v0.11.0
[INFO] [stderr]    Compiling num_threads v0.1.2
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling urlencoding v2.1.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling im v14.3.0
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.4
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling curl-sys v0.4.52+curl-7.81.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling bytestring v1.0.0
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling alloc-stdlib v0.2.1
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling boringssl-src v0.3.0+688fc5c
[INFO] [stderr]    Compiling brotli-decompressor v2.3.2
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling sentry-contexts v0.19.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.4.3
[INFO] [stderr]    Compiling uname v0.1.1
[INFO] [stderr]    Compiling time v0.3.6
[INFO] [stderr]    Compiling serde-hjson v0.9.1
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling brotli v3.3.3
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling cadence v0.26.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling pyo3 v0.14.5
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.5
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling r2d2 v0.8.9
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling sized-chunks v0.5.3
[INFO] [stderr]    Compiling hkdf v0.11.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling pyo3-macros-backend v0.14.5
[INFO] [stderr]    Compiling validator_types v0.14.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[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-1.0.86/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=c0d1b8a3c72f4211 -C extra-filename=-c0d1b8a3c72f4211 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e91ec37ac01f916c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5f4666774155f97d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-aeb18ec3bc792598.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (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" "f4c301847e2ef6524eebdeab91613db892a77bb74342c3509c5a22be7487af54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c301847e2ef6524eebdeab91613db892a77bb74342c3509c5a22be7487af54", kill_on_drop: false }`
[INFO] [stdout] f4c301847e2ef6524eebdeab91613db892a77bb74342c3509c5a22be7487af54