[INFO] cloning repository https://github.com/metaclips-bot/metaclips_28_11_2021_crate_release_107
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/metaclips-bot/metaclips_28_11_2021_crate_release_107" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmetaclips-bot%2Fmetaclips_28_11_2021_crate_release_107", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmetaclips-bot%2Fmetaclips_28_11_2021_crate_release_107'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b8e9776de5a0956b928c86ffed6c21c421db150
[INFO] testing metaclips-bot/metaclips_28_11_2021_crate_release_107 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmetaclips-bot%2Fmetaclips_28_11_2021_crate_release_107" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/metaclips-bot/metaclips_28_11_2021_crate_release_107 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/metaclips-bot/metaclips_28_11_2021_crate_release_107
[INFO] finished tweaking git repo https://github.com/metaclips-bot/metaclips_28_11_2021_crate_release_107
[INFO] tweaked toml for git repo https://github.com/metaclips-bot/metaclips_28_11_2021_crate_release_107 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/metaclips-bot/metaclips_28_11_2021_crate_release_107 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 4aabbfcfd80b942f22f62b60757991c0e8e3d20b400d950d167a143e9c7d025b
[INFO] running `Command { std: "docker" "start" "-a" "4aabbfcfd80b942f22f62b60757991c0e8e3d20b400d950d167a143e9c7d025b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aabbfcfd80b942f22f62b60757991c0e8e3d20b400d950d167a143e9c7d025b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aabbfcfd80b942f22f62b60757991c0e8e3d20b400d950d167a143e9c7d025b", kill_on_drop: false }`
[INFO] [stdout] 4aabbfcfd80b942f22f62b60757991c0e8e3d20b400d950d167a143e9c7d025b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] b3de843c3f6cd6c44a4ad4eca1356887dea1dfca0622a6c15421e1712c2e5c0f
[INFO] running `Command { std: "docker" "start" "-a" "b3de843c3f6cd6c44a4ad4eca1356887dea1dfca0622a6c15421e1712c2e5c0f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling owo-colors v3.1.0
[INFO] [stderr]    Compiling webbrowser v0.5.5
[INFO] [stderr]    Compiling example_blocks v0.1.0 (/opt/rustwide/workdir/tools/docs/example_blocks)
[INFO] [stderr]    Compiling openssl-sys v0.9.71
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling duct v0.13.5
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling bunt v0.2.6
[INFO] [stderr]    Compiling ctrlc v3.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ff v0.10.1
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling signal-hook-mio v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[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 universal-hash v0.4.1
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling aead v0.4.3
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling polyval v0.5.3
[INFO] [stderr]    Compiling group v0.10.0
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling crossterm v0.22.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.2
[INFO] [stderr]    Compiling os_type v2.3.0
[INFO] [stderr]    Compiling serde-hjson v0.9.1
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling blake2 v0.9.2
[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-1.0.81/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"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=b65da4fc5463f86c -C extra-filename=-b65da4fc5463f86c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5b628874f3abff7a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f072c03decc61796.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" "b3de843c3f6cd6c44a4ad4eca1356887dea1dfca0622a6c15421e1712c2e5c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3de843c3f6cd6c44a4ad4eca1356887dea1dfca0622a6c15421e1712c2e5c0f", kill_on_drop: false }`
[INFO] [stdout] b3de843c3f6cd6c44a4ad4eca1356887dea1dfca0622a6c15421e1712c2e5c0f