[INFO] cloning repository https://github.com/abusch/rustracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abusch/rustracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabusch%2Frustracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabusch%2Frustracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0429dac0b3b02ca6ce8a7fe60e95014f527ddc1
[INFO] testing abusch/rustracer against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabusch%2Frustracer" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/abusch/rustracer on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-26/source/.cargo/config
[INFO] started tweaking git repo https://github.com/abusch/rustracer
[INFO] finished tweaking git repo https://github.com/abusch/rustracer
[INFO] tweaked toml for git repo https://github.com/abusch/rustracer written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/abusch/rustracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ply-rs v0.1.3
[INFO] [stderr]   Downloaded light_arena v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7663521af2e3d0aece82c8194262ae7a02b451368870e10570770fbfb0d5277d
[INFO] running `Command { std: "docker" "start" "-a" "7663521af2e3d0aece82c8194262ae7a02b451368870e10570770fbfb0d5277d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7663521af2e3d0aece82c8194262ae7a02b451368870e10570770fbfb0d5277d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7663521af2e3d0aece82c8194262ae7a02b451368870e10570770fbfb0d5277d", kill_on_drop: false }`
[INFO] [stdout] 7663521af2e3d0aece82c8194262ae7a02b451368870e10570770fbfb0d5277d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a776bff915b4a2fcf6df4a3f713b832be368847b505c9bd40fa725f6178b37ab
[INFO] running `Command { std: "docker" "start" "-a" "a776bff915b4a2fcf6df4a3f713b832be368847b505c9bd40fa725f6178b37ab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling lebe v0.5.1
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling state v0.5.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling light_arena v1.0.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.82/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=afdc6571e713d8a8 -C extra-filename=-afdc6571e713d8a8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-94739b853bf9f34a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1338018499429d97.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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a776bff915b4a2fcf6df4a3f713b832be368847b505c9bd40fa725f6178b37ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a776bff915b4a2fcf6df4a3f713b832be368847b505c9bd40fa725f6178b37ab", kill_on_drop: false }`
[INFO] [stdout] a776bff915b4a2fcf6df4a3f713b832be368847b505c9bd40fa725f6178b37ab