[INFO] fetching crate casperlabs-engine-core 0.7.1...
[INFO] checking casperlabs-engine-core-0.7.1 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate casperlabs-engine-core 0.7.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate casperlabs-engine-core 0.7.1 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casperlabs-engine-core 0.7.1
[INFO] finished tweaking crates.io crate casperlabs-engine-core 0.7.1
[INFO] tweaked toml for crates.io crate casperlabs-engine-core 0.7.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6823fbaafc239e983d5e03c3768fb9482d1ab399a0a765b8274ec191200fb2b6
[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" "6823fbaafc239e983d5e03c3768fb9482d1ab399a0a765b8274ec191200fb2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6823fbaafc239e983d5e03c3768fb9482d1ab399a0a765b8274ec191200fb2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6823fbaafc239e983d5e03c3768fb9482d1ab399a0a765b8274ec191200fb2b6", kill_on_drop: false }`
[INFO] [stdout] 6823fbaafc239e983d5e03c3768fb9482d1ab399a0a765b8274ec191200fb2b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 29908ef38cb8825189cbf4a2f4b4bfef2bcdf66274140f437dbb605fd3d8b184
[INFO] running `Command { std: "docker" "start" "-a" "29908ef38cb8825189cbf4a2f4b4bfef2bcdf66274140f437dbb605fd3d8b184", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking base16 v0.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling lmdb-sys v0.8.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking wee_alloc v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.4.4
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]     Checking uint v0.8.5
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stderr]     Checking pwasm-utils v0.12.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr] error: could not compile `proptest`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name proptest --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proptest-0.9.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="bit-set"' --cfg 'feature="break-dead-code"' --cfg 'feature="default"' --cfg 'feature="fork"' --cfg 'feature="lazy_static"' --cfg 'feature="quick-error"' --cfg 'feature="regex-syntax"' --cfg 'feature="rusty-fork"' --cfg 'feature="std"' --cfg 'feature="tempfile"' --cfg 'feature="timeout"' -C metadata=10e0494e7919c452 -C extra-filename=-10e0494e7919c452 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bit_set=/opt/rustwide/target/debug/deps/libbit_set-d49444f9f17983dd.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-240d294e8e0ea2cd.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-28d9ce23c3001802.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-df97b860f7a76404.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-416358088c0055fc.rmeta --extern quick_error=/opt/rustwide/target/debug/deps/libquick_error-b14b7b814ddf144c.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-960a8bc44fb5f85e.rmeta --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-675ad4ac2e5ecf0b.rmeta --extern rand_xorshift=/opt/rustwide/target/debug/deps/librand_xorshift-962d9716f0a5dc65.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-51f792a1ca6c78d8.rmeta --extern rusty_fork=/opt/rustwide/target/debug/deps/librusty_fork-2f4a2b8168516824.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-0df3d7518ec0dad1.rmeta --cap-lints allow --cap-lints=forbid` (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" "29908ef38cb8825189cbf4a2f4b4bfef2bcdf66274140f437dbb605fd3d8b184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29908ef38cb8825189cbf4a2f4b4bfef2bcdf66274140f437dbb605fd3d8b184", kill_on_drop: false }`
[INFO] [stdout] 29908ef38cb8825189cbf4a2f4b4bfef2bcdf66274140f437dbb605fd3d8b184