[INFO] fetching crate perkv 0.0.2...
[INFO] testing perkv-0.0.2 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate perkv 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate perkv 0.0.2 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perkv 0.0.2
[INFO] finished tweaking crates.io crate perkv 0.0.2
[INFO] tweaked toml for crates.io crate perkv 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate perkv 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode v1.2.0
[INFO] [stderr]   Downloaded persawkv v0.0.0-alpha.1
[INFO] [stderr]   Downloaded persy v0.7.0
[INFO] [stderr]   Downloaded data-encoding v2.1.2
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6219faa98a49abfb2ac92e738cbd279193c23a88938a38cb3de17f0ead0c503
[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" "b6219faa98a49abfb2ac92e738cbd279193c23a88938a38cb3de17f0ead0c503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6219faa98a49abfb2ac92e738cbd279193c23a88938a38cb3de17f0ead0c503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6219faa98a49abfb2ac92e738cbd279193c23a88938a38cb3de17f0ead0c503", kill_on_drop: false }`
[INFO] [stdout] b6219faa98a49abfb2ac92e738cbd279193c23a88938a38cb3de17f0ead0c503
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9a2b99b8821b390d61fc73b5db5805d9ca5f20c3d9e8872ad558d6f4dd05203
[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" "e9a2b99b8821b390d61fc73b5db5805d9ca5f20c3d9e8872ad558d6f4dd05203", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling unsigned-varint v0.2.3
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling persy v0.7.0
[INFO] [stderr]    Compiling delegate v0.3.0
[INFO] [stderr]    Compiling persawkv v0.0.0-alpha.1
[INFO] [stderr]    Compiling perkv v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `persy`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name persy --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/persy-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=0d7b3c1d2b9d5c5a -C extra-filename=-0d7b3c1d2b9d5c5a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-4a8145f39c6f83ac.rmeta --extern crc=/opt/rustwide/target/debug/deps/libcrc-c901d97c2b057bf7.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-1594e35562fd2106.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-1ad50342b1040d9b.rmeta --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-726490bc57b8a7b0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-1d3050c20a1f6fab.rmeta --extern unsigned_varint=/opt/rustwide/target/debug/deps/libunsigned_varint-3bf2df9964b365bf.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e9a2b99b8821b390d61fc73b5db5805d9ca5f20c3d9e8872ad558d6f4dd05203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9a2b99b8821b390d61fc73b5db5805d9ca5f20c3d9e8872ad558d6f4dd05203", kill_on_drop: false }`
[INFO] [stdout] e9a2b99b8821b390d61fc73b5db5805d9ca5f20c3d9e8872ad558d6f4dd05203