[INFO] fetching crate spotify-genres 0.1.1...
[INFO] building spotify-genres-0.1.1 against try#2cd6942e35a7765b6869d3a149ca54f2598b77ad for pr-93180
[INFO] extracting crate spotify-genres 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate spotify-genres 0.1.1 on toolchain 2cd6942e35a7765b6869d3a149ca54f2598b77ad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2cd6942e35a7765b6869d3a149ca54f2598b77ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spotify-genres 0.1.1
[INFO] finished tweaking crates.io crate spotify-genres 0.1.1
[INFO] tweaked toml for crates.io crate spotify-genres 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate spotify-genres 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2cd6942e35a7765b6869d3a149ca54f2598b77ad" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded security-framework v0.3.3
[INFO] [stderr]   Downloaded itertools v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+2cd6942e35a7765b6869d3a149ca54f2598b77ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c9d4891eb9b08f033c07a2772a2b3948976fd5a7dac08f70c1ee0a1a0063a79
[INFO] running `Command { std: "docker" "start" "-a" "8c9d4891eb9b08f033c07a2772a2b3948976fd5a7dac08f70c1ee0a1a0063a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c9d4891eb9b08f033c07a2772a2b3948976fd5a7dac08f70c1ee0a1a0063a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c9d4891eb9b08f033c07a2772a2b3948976fd5a7dac08f70c1ee0a1a0063a79", kill_on_drop: false }`
[INFO] [stdout] 8c9d4891eb9b08f033c07a2772a2b3948976fd5a7dac08f70c1ee0a1a0063a79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+2cd6942e35a7765b6869d3a149ca54f2598b77ad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 032c0d6f0ef54b1d3d16245a36aaf6ed6a5b89f47abf13414b705579eb43050e
[INFO] running `Command { std: "docker" "start" "-a" "032c0d6f0ef54b1d3d16245a36aaf6ed6a5b89f47abf13414b705579eb43050e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling mime v0.3.14
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling random v0.12.2
[INFO] [stderr]    Compiling webbrowser v0.5.2
[INFO] [stderr]    Compiling histogram v0.6.9
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling miniz_oxide v0.3.5
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling itertools v0.8.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.9
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=a529d866e2231dd5 -C extra-filename=-a529d866e2231dd5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-74cf65b213176c4b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-520fec877571f6ee.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-17df5e5ca0bb5bda.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (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" "032c0d6f0ef54b1d3d16245a36aaf6ed6a5b89f47abf13414b705579eb43050e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032c0d6f0ef54b1d3d16245a36aaf6ed6a5b89f47abf13414b705579eb43050e", kill_on_drop: false }`
[INFO] [stdout] 032c0d6f0ef54b1d3d16245a36aaf6ed6a5b89f47abf13414b705579eb43050e