[INFO] cloning repository https://github.com/fallingyang/rust-lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fallingyang/rust-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Frust-lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Frust-lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd29d60c565bbe729f5c32c4af84d8589da27ca0
[INFO] testing fallingyang/rust-lab 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%2Ffallingyang%2Frust-lab" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fallingyang/rust-lab 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] started tweaking git repo https://github.com/fallingyang/rust-lab
[INFO] finished tweaking git repo https://github.com/fallingyang/rust-lab
[INFO] tweaked toml for git repo https://github.com/fallingyang/rust-lab written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/fallingyang/rust-lab 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v1.7.0
[INFO] [stderr]   Downloaded backtrace v0.3.63
[INFO] [stderr]   Downloaded wasmtime-jit v0.20.0
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[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.0
[INFO] [stderr]   Downloaded tonic-build v0.3.1
[INFO] [stderr]   Downloaded tracing-futures v0.2.4
[INFO] [stderr]   Downloaded pin-project v0.4.27
[INFO] [stderr]   Downloaded tower-make v0.3.0
[INFO] [stderr]   Downloaded tower-discover v0.3.0
[INFO] [stderr]   Downloaded tower-load-shed v0.3.0
[INFO] [stderr]   Downloaded tower-limit v0.3.1
[INFO] [stderr]   Downloaded bytes v0.6.0
[INFO] [stderr]   Downloaded sharded-slab v0.1.0
[INFO] [stderr]   Downloaded hyper v0.13.8
[INFO] [stderr]   Downloaded async-stream-impl v0.2.1
[INFO] [stderr]   Downloaded async-stream v0.2.1
[INFO] [stderr]   Downloaded socket2 v0.3.15
[INFO] [stderr]   Downloaded structopt-derive v0.4.13
[INFO] [stderr]   Downloaded generator v0.6.23
[INFO] [stderr]   Downloaded loom v0.3.6
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.14
[INFO] [stderr]   Downloaded mini-redis v0.3.0
[INFO] [stderr]   Downloaded tracing-core v0.1.17
[INFO] [stderr]   Downloaded structopt v0.3.20
[INFO] [stderr]   Downloaded async-channel v1.5.1
[INFO] [stderr]   Downloaded nng v1.0.0
[INFO] [stderr]   Downloaded rumqttc v0.6.0
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded regex v1.4.1
[INFO] [stderr]   Downloaded tokio-macros v0.2.5
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded wast v38.0.1
[INFO] [stderr]   Downloaded cranelift-entity v0.67.0
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded atoi v0.3.3
[INFO] [stderr]   Downloaded log4rs v1.0.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.67.0
[INFO] [stderr]   Downloaded net2 v0.2.35
[INFO] [stderr]   Downloaded dtoa v0.4.6
[INFO] [stderr]   Downloaded wat v1.0.40
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded pin-project-lite v0.1.11
[INFO] [stderr]   Downloaded log-mdc v0.1.0
[INFO] [stderr]   Downloaded nng-sys v1.4.0-rc.0
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] [stderr]   Downloaded indexmap v1.6.0
[INFO] [stderr]   Downloaded yaml-rust v0.4.4
[INFO] [stderr]   Downloaded unsafe-any v0.4.2
[INFO] [stderr]   Downloaded typemap v0.3.3
[INFO] [stderr]   Downloaded serde-value v0.7.0
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded tokio v0.3.2
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded target-lexicon v0.11.2
[INFO] [stderr]   Downloaded cranelift-wasm v0.67.0
[INFO] [stderr]   Downloaded wasmtime-environ v0.20.0
[INFO] [stderr]   Downloaded wasmtime-runtime v0.20.0
[INFO] [stderr]   Downloaded wasmtime v0.20.0
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded quiche v0.6.0
[INFO] [stderr]   Downloaded mio-serial v3.3.1
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded tokio-modbus v0.4.0
[INFO] [stderr]   Downloaded tokio-serial v4.3.3
[INFO] [stderr]   Downloaded aho-corasick v0.7.14
[INFO] [stderr]   Downloaded ordered-float v2.2.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.14
[INFO] [stderr]   Downloaded regex-syntax v0.6.20
[INFO] [stderr]   Downloaded mqttbytes v0.3.0
[INFO] [stderr]   Downloaded pollster v0.2.0
[INFO] [stderr]   Downloaded instant v0.1.8
[INFO] [stderr]   Downloaded thiserror-impl v1.0.21
[INFO] [stderr]   Downloaded thiserror v1.0.21
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.1
[INFO] [stderr]   Downloaded wasmtime-debug v0.20.0
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded toml v0.5.7
[INFO] [stderr]   Downloaded rustc-demangle v0.1.18
[INFO] [stderr]   Downloaded tokio-macros v0.3.1
[INFO] [stderr]   Downloaded tower-buffer v0.3.0
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[INFO] [stderr]   Downloaded tower v0.3.1
[INFO] [stderr]   Downloaded tower-ready-cache v0.3.1
[INFO] [stderr]   Downloaded tower-balance v0.3.0
[INFO] [stderr]   Downloaded tracing v0.1.21
[INFO] [stderr]   Downloaded tower-load v0.3.0
[INFO] [stderr]   Downloaded wasmtime-cache v0.20.0
[INFO] [stderr]   Downloaded pin-project-internal v0.4.27
[INFO] [stderr]   Downloaded cranelift-native v0.67.0
[INFO] [stderr]   Downloaded raw-cpuid v7.0.4
[INFO] [stderr]   Downloaded tonic v0.3.1
[INFO] [stderr]   Downloaded wasmtime-cranelift v0.20.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.67.0
[INFO] [stderr]   Downloaded wasmtime-obj v0.20.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.67.0
[INFO] [stderr]   Downloaded regalloc v0.0.30
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.67.0
[INFO] [stderr]   Downloaded object v0.21.1
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[INFO] [stderr]   Downloaded cranelift-bforest v0.67.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f001fbcbb9d40511d43a7e6a00c8470ab2d66fe3def98245539e83c50a70e6b
[INFO] running `Command { std: "docker" "start" "-a" "5f001fbcbb9d40511d43a7e6a00c8470ab2d66fe3def98245539e83c50a70e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f001fbcbb9d40511d43a7e6a00c8470ab2d66fe3def98245539e83c50a70e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f001fbcbb9d40511d43a7e6a00c8470ab2d66fe3def98245539e83c50a70e6b", kill_on_drop: false }`
[INFO] [stdout] 5f001fbcbb9d40511d43a7e6a00c8470ab2d66fe3def98245539e83c50a70e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] bf6b2b6aa70f0cc579174cfdb180c9155ee4ad6435ef4dd81d5bc61d55462515
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bf6b2b6aa70f0cc579174cfdb180c9155ee4ad6435ef4dd81d5bc61d55462515", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.67.0
[INFO] [stderr]    Compiling target-lexicon v0.11.2
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling bytes v0.6.0
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]    Compiling wasmtime-cache v0.20.0
[INFO] [stderr]    Compiling pollster v0.2.0
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling importer v0.1.0 (/opt/rustwide/workdir/importer)
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling instant v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling sharded-slab v0.1.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling mqttbytes v0.3.0
[INFO] [stderr]    Compiling wast v38.0.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling atoi v0.3.3
[INFO] [stderr]    Compiling ordered-float v2.2.0
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling wat v1.0.40
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[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-1.0.72/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=2d5235f5e4bdbb40 -C extra-filename=-2d5235f5e4bdbb40 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-fa5930d422fca36d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c3174e3c655ceacd.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-a00294059a9d31c4.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" "bf6b2b6aa70f0cc579174cfdb180c9155ee4ad6435ef4dd81d5bc61d55462515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf6b2b6aa70f0cc579174cfdb180c9155ee4ad6435ef4dd81d5bc61d55462515", kill_on_drop: false }`
[INFO] [stdout] bf6b2b6aa70f0cc579174cfdb180c9155ee4ad6435ef4dd81d5bc61d55462515