[INFO] fetching crate morty 0.6.0...
[INFO] testing morty-0.6.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate morty 0.6.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate morty 0.6.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate morty 0.6.0
[INFO] finished tweaking crates.io crate morty 0.6.0
[INFO] tweaked toml for crates.io crate morty 0.6.0 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] crate crates.io crate morty 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 441b0d150fd255d494a5d8494512a5fba6b4099f844b24635b8e46bc6255904e
[INFO] running `Command { std: "docker" "start" "-a" "441b0d150fd255d494a5d8494512a5fba6b4099f844b24635b8e46bc6255904e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "441b0d150fd255d494a5d8494512a5fba6b4099f844b24635b8e46bc6255904e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441b0d150fd255d494a5d8494512a5fba6b4099f844b24635b8e46bc6255904e", kill_on_drop: false }`
[INFO] [stdout] 441b0d150fd255d494a5d8494512a5fba6b4099f844b24635b8e46bc6255904e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f79e344de02e47012d0b72526a450c9f7e82c462743132bc489e09b05d731ffb
[INFO] running `Command { std: "docker" "start" "-a" "f79e344de02e47012d0b72526a450c9f7e82c462743132bc489e09b05d731ffb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling str-concat v0.2.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling regex v1.5.4
[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-1.0.74/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"' -C metadata=b32b6128b106abd7 -C extra-filename=-b32b6128b106abd7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-636568e891c13334.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c7449b38a6935064.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-11d097b41f2e60a4.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] running `Command { std: "docker" "inspect" "f79e344de02e47012d0b72526a450c9f7e82c462743132bc489e09b05d731ffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79e344de02e47012d0b72526a450c9f7e82c462743132bc489e09b05d731ffb", kill_on_drop: false }`
[INFO] [stdout] f79e344de02e47012d0b72526a450c9f7e82c462743132bc489e09b05d731ffb