[INFO] crate buildkit-frontend 0.3.0 is already in cache
[INFO] testing buildkit-frontend-0.3.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate buildkit-frontend 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate buildkit-frontend 0.3.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate buildkit-frontend 0.3.0
[INFO] finished tweaking crates.io crate buildkit-frontend 0.3.0
[INFO] tweaked toml for crates.io crate buildkit-frontend 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate buildkit-frontend 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "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] 6ed866bcd1da2444db17db840169e0e523b78a0898ca6e0c75dde58911f5ef5f
[INFO] running `"docker" "start" "-a" "6ed866bcd1da2444db17db840169e0e523b78a0898ca6e0c75dde58911f5ef5f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling multimap v0.8.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling regex-syntax v0.6.16
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling which v3.1.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.9
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling tower-load-shed v0.3.0
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling async-stream v0.2.1
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling tracing v0.1.13
[INFO] [stderr]    Compiling tracing-futures v0.2.3
[INFO] [stderr]    Compiling tower-util v0.3.0
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling tower-limit v0.3.0
[INFO] [stderr]    Compiling tower-timeout v0.3.0
[INFO] [stderr]    Compiling tower-retry v0.3.0
[INFO] [stderr]    Compiling tower-buffer v0.3.0
[INFO] [stderr]    Compiling tower-ready-cache v0.3.1
[INFO] [stderr]    Compiling tower-load v0.3.0
[INFO] [stderr]    Compiling tower-make v0.3.0
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling tower-balance v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.2
[INFO] [stderr]    Compiling tower v0.3.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling tonic-build v0.1.1
[INFO] [stderr]    Compiling hyper v0.13.3
[INFO] [stderr]    Compiling buildkit-proto v0.2.0
[INFO] [stderr]    Compiling tonic v0.1.1
[INFO] [stderr]    Compiling buildkit-llb v0.2.0
[INFO] [stderr]    Compiling buildkit-frontend v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 51s
[INFO] running `"docker" "inspect" "6ed866bcd1da2444db17db840169e0e523b78a0898ca6e0c75dde58911f5ef5f"`
[INFO] running `"docker" "rm" "-f" "6ed866bcd1da2444db17db840169e0e523b78a0898ca6e0c75dde58911f5ef5f"`
[INFO] [stdout] 6ed866bcd1da2444db17db840169e0e523b78a0898ca6e0c75dde58911f5ef5f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b82b5d27da590a1ca5fa932af0129ea1c7f6a1b17930e9d18aa3ec952de67375
[INFO] running `"docker" "start" "-a" "b82b5d27da590a1ca5fa932af0129ea1c7f6a1b17930e9d18aa3ec952de67375"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling buildkit-frontend v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `buildkit-frontend`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name download --edition=2018 examples/download.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=f8913f4a329e518a -C extra-filename=-f8913f4a329e518a --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-4ccebc839db41d60.so --extern buildkit_frontend=/opt/rustwide/target/debug/deps/libbuildkit_frontend-5dd4cc144453ccb9.rlib --extern buildkit_llb=/opt/rustwide/target/debug/deps/libbuildkit_llb-4c4a1d9eee977c3e.rlib --extern buildkit_proto=/opt/rustwide/target/debug/deps/libbuildkit_proto-992038a0b7e5333e.rlib --extern bytes=/opt/rustwide/target/debug/deps/libbytes-f84ed14a388d339f.rlib --extern chrono=/opt/rustwide/target/debug/deps/libchrono-e2e84184c18b15ed.rlib --extern either=/opt/rustwide/target/debug/deps/libeither-cda11bec59b157f6.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-55c6345fa2309569.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-d55de8ffe3adee46.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-dd89bbd4539b47e7.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-144dd5fd09fc18d4.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-3d65ebee37a7b6c8.rlib --extern mio=/opt/rustwide/target/debug/deps/libmio-cad0e28d71cb3bc4.rlib --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-3b3e7e53d3b2cc7a.rlib --extern pretty_assertions=/opt/rustwide/target/debug/deps/libpretty_assertions-850014baecd9aa35.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-9db7d835541dac79.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-21ab3ea54bcf476e.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a98b59a2fed8bee9.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-aa3d8e5263c7473a.rlib --extern tonic=/opt/rustwide/target/debug/deps/libtonic-61479ccff1561ccf.rlib --extern tower=/opt/rustwide/target/debug/deps/libtower-3214d6e22835b765.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-8aaa256ab3933e63.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/backtrace-sys-854ff70892160407/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" "b82b5d27da590a1ca5fa932af0129ea1c7f6a1b17930e9d18aa3ec952de67375"`
[INFO] running `"docker" "rm" "-f" "b82b5d27da590a1ca5fa932af0129ea1c7f6a1b17930e9d18aa3ec952de67375"`
[INFO] [stdout] b82b5d27da590a1ca5fa932af0129ea1c7f6a1b17930e9d18aa3ec952de67375