[INFO] fetching crate tract 0.6.2...
[INFO] testing tract-0.6.2 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate tract 0.6.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate tract 0.6.2 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tract 0.6.2
[INFO] finished tweaking crates.io crate tract 0.6.2
[INFO] tweaked toml for crates.io crate tract 0.6.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate tract 0.6.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b407c7c66372d179079332a2f087e571ebb6a7b9cbf57ec083dcb36653699cf5
[INFO] running `"docker" "start" "-a" "b407c7c66372d179079332a2f087e571ebb6a7b9cbf57ec083dcb36653699cf5"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling dyn-clone v1.0.1
[INFO] [stderr]    Compiling downcast-rs v1.1.1
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling box_drawing v0.1.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling pbr v1.0.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling zip v0.5.5
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.41
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling proc-quote v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling liquid-derive v0.20.0
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling py_literal v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.15
[INFO] [stderr]    Compiling readings-probe v0.1.2
[INFO] [stderr]    Compiling ndarray-npy v0.5.0
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling tract-onnx v0.6.2
[INFO] [stderr]    Compiling tract-tensorflow v0.6.2
[INFO] [stderr]    Compiling kstring v0.1.0
[INFO] [stderr]    Compiling liquid-core v0.20.0
[INFO] [stderr]    Compiling liquid-lib v0.20.0
[INFO] [stderr]    Compiling liquid v0.20.0
[INFO] [stderr]    Compiling tract-linalg v0.6.2
[INFO] [stderr]    Compiling tract-core v0.6.2
[INFO] [stderr]    Compiling tract-hir v0.6.2
[INFO] [stderr]    Compiling tract-kaldi v0.6.2
[INFO] [stderr] error: could not compile `tract-core`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name tract_core --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tract-core-0.6.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' -C metadata=d50f336d3482e915 -C extra-filename=-d50f336d3482e915 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bit_set=/opt/rustwide/target/debug/deps/libbit_set-f2b3427e4674fbf5.rmeta --extern derive_new=/opt/rustwide/target/debug/deps/libderive_new-641444419d9ced54.so --extern downcast_rs=/opt/rustwide/target/debug/deps/libdowncast_rs-f4dad427c1094294.rmeta --extern dyn_clone=/opt/rustwide/target/debug/deps/libdyn_clone-13aaa35603f378ec.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-47d1fcfdf73e11a9.rmeta --extern half=/opt/rustwide/target/debug/deps/libhalf-f23eac226d9a9137.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-14ef6905ce359105.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d67a4c2ceeeb5092.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-0b037f58c4630d32.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-4d3af91ed5eba24f.rmeta --extern num_integer=/opt/rustwide/target/debug/deps/libnum_integer-9032d7a2d99629ef.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-9f97a4fd61bd1e10.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-079a3bb21ce585fc.rmeta --extern tract_linalg=/opt/rustwide/target/debug/deps/libtract_linalg-355fa4236369017c.rmeta --cap-lints allow --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/backtrace-sys-0fc935cbb77f16dc/out -L native=/opt/rustwide/target/debug/build/tract-linalg-8402a171742fa1f3/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b407c7c66372d179079332a2f087e571ebb6a7b9cbf57ec083dcb36653699cf5"`
[INFO] running `"docker" "rm" "-f" "b407c7c66372d179079332a2f087e571ebb6a7b9cbf57ec083dcb36653699cf5"`
[INFO] [stdout] b407c7c66372d179079332a2f087e571ebb6a7b9cbf57ec083dcb36653699cf5