[INFO] cloning repository https://github.com/mcne65/BlockyMusic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcne65/BlockyMusic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcne65%2FBlockyMusic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcne65%2FBlockyMusic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16da5c3461296ac2dd81f3f1a21b5f32353fce6a
[INFO] testing mcne65/BlockyMusic against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcne65%2FBlockyMusic" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcne65/BlockyMusic on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcne65/BlockyMusic
[INFO] finished tweaking git repo https://github.com/mcne65/BlockyMusic
[INFO] tweaked toml for git repo https://github.com/mcne65/BlockyMusic written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/mcne65/BlockyMusic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gtk-rs`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir-files`
[INFO] [stderr]     Updating git repository `https://gitlab.freedesktop.org/gstreamer/gstreamer-rs`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir-files`
[INFO] [stderr]     Updating git submodule `https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/pravega/pravega-client-rust`
[INFO] [stderr]     Updating git repository `https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sketches-ddsketch v0.1.2
[INFO] [stderr]   Downloaded enum-iterator-derive v0.6.0
[INFO] [stderr]   Downloaded enum-iterator v0.6.0
[INFO] [stderr]   Downloaded cfg-expr v0.7.4
[INFO] [stderr]   Downloaded array-init v2.0.0
[INFO] [stderr]   Downloaded system-deps v3.1.1
[INFO] [stderr]   Downloaded derive_builder_core v0.10.2
[INFO] [stderr]   Downloaded darling_macro v0.12.4
[INFO] [stderr]   Downloaded darling v0.12.4
[INFO] [stderr]   Downloaded darling_core v0.12.4
[INFO] [stderr]   Downloaded field-offset v0.3.3
[INFO] [stderr]   Downloaded configparser v2.0.1
[INFO] [stderr]   Downloaded dashmap v3.11.10
[INFO] [stderr]   Downloaded derive_builder_macro v0.10.2
[INFO] [stderr]   Downloaded derive_builder v0.10.2
[INFO] [stderr]   Downloaded tower v0.4.7
[INFO] [stderr]   Downloaded bincode2 v2.0.1
[INFO] [stderr]   Downloaded handlebars v3.5.5
[INFO] [stderr]   Downloaded metrics-exporter-prometheus v0.1.0
[INFO] [stderr]   Downloaded metrics-macros v0.1.0
[INFO] [stderr]   Downloaded murmurhash3 v0.0.5
[INFO] [stderr]   Downloaded shrinkwraprs v0.3.0
[INFO] [stderr]   Downloaded metrics v0.13.1
[INFO] [stderr]   Downloaded metrics-util v0.4.1
[INFO] [stderr]   Downloaded pcg_rand v0.11.1
[INFO] [stderr]   Downloaded rstest v0.8.0
[INFO] [stderr]   Downloaded derive-new v0.5.9
[INFO] [stderr]   Downloaded java-properties v1.3.0
[INFO] [stderr]   Downloaded ordered-float v2.2.0
[INFO] [stderr]   Downloaded muldiv v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0340025fec986cc3ca05a36de80288e375e662150ad6fb749a8cdc960116c480
[INFO] running `Command { std: "docker" "start" "-a" "0340025fec986cc3ca05a36de80288e375e662150ad6fb749a8cdc960116c480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0340025fec986cc3ca05a36de80288e375e662150ad6fb749a8cdc960116c480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0340025fec986cc3ca05a36de80288e375e662150ad6fb749a8cdc960116c480", kill_on_drop: false }`
[INFO] [stdout] 0340025fec986cc3ca05a36de80288e375e662150ad6fb749a8cdc960116c480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24e7c8668c2b715e9f32e27bb6f6f7cd29a906597e2910c9ceb0ed588dfbf6d3
[INFO] running `Command { std: "docker" "start" "-a" "24e7c8668c2b715e9f32e27bb6f6f7cd29a906597e2910c9ceb0ed588dfbf6d3", 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]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling futures-sink v0.3.14
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.14
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling futures-task v0.3.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling murmurhash3 v0.0.5
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling pretty-hex v0.2.1
[INFO] [stderr]    Compiling muldiv v1.0.0
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling tower-layer v0.3.1
[INFO] [stderr]    Compiling metrics v0.13.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling atomic-shim v0.1.0
[INFO] [stderr]    Compiling gio v0.13.0 (https://github.com/gtk-rs/gtk-rs#18bafda6)
[INFO] [stderr]    Compiling sketches-ddsketch v0.1.2
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling array-init v2.0.0
[INFO] [stderr]    Compiling byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpufeatures v0.1.1
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling configparser v2.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.72/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,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"' --cfg 'feature="visit-mut"' -C metadata=b63204069afc72b2 -C extra-filename=-b63204069afc72b2 --out-dir /opt/rustwide/target/debug/build/syn-b63204069afc72b2 -L dependency=/opt/rustwide/target/debug/deps --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" "24e7c8668c2b715e9f32e27bb6f6f7cd29a906597e2910c9ceb0ed588dfbf6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e7c8668c2b715e9f32e27bb6f6f7cd29a906597e2910c9ceb0ed588dfbf6d3", kill_on_drop: false }`
[INFO] [stdout] 24e7c8668c2b715e9f32e27bb6f6f7cd29a906597e2910c9ceb0ed588dfbf6d3