[INFO] cloning repository https://github.com/vhtq18w/kvdb_benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vhtq18w/kvdb_benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvhtq18w%2Fkvdb_benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvhtq18w%2Fkvdb_benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8eebcf8dfe5fb1e8845d561224d715f7a1e40db0
[INFO] checking vhtq18w/kvdb_benchmark against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvhtq18w%2Fkvdb_benchmark" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vhtq18w/kvdb_benchmark on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vhtq18w/kvdb_benchmark
[INFO] finished tweaking git repo https://github.com/vhtq18w/kvdb_benchmark
[INFO] tweaked toml for git repo https://github.com/vhtq18w/kvdb_benchmark written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/vhtq18w/kvdb_benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta" "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] ce92433b93341b2bc6b7d651ae50df6ad47e8dd960e5a57c78773a0c3fe3b6c3
[INFO] running `Command { std: "docker" "start" "-a" "ce92433b93341b2bc6b7d651ae50df6ad47e8dd960e5a57c78773a0c3fe3b6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce92433b93341b2bc6b7d651ae50df6ad47e8dd960e5a57c78773a0c3fe3b6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce92433b93341b2bc6b7d651ae50df6ad47e8dd960e5a57c78773a0c3fe3b6c3", kill_on_drop: false }`
[INFO] [stdout] ce92433b93341b2bc6b7d651ae50df6ad47e8dd960e5a57c78773a0c3fe3b6c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f7a4d219ec1911e57433cc94edee93ae29cf839d2a936a889c7acb1fa755066
[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" "8f7a4d219ec1911e57433cc94edee93ae29cf839d2a936a889c7acb1fa755066", kill_on_drop: false }`
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling lmdb-sys v0.8.0
[INFO] [stderr]    Compiling leveldb-sys v2.0.8
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking leveldb v0.8.6
[INFO] [stderr]     Checking kvdb_benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.11s
[INFO] running `Command { std: "docker" "inspect" "8f7a4d219ec1911e57433cc94edee93ae29cf839d2a936a889c7acb1fa755066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f7a4d219ec1911e57433cc94edee93ae29cf839d2a936a889c7acb1fa755066", kill_on_drop: false }`
[INFO] [stdout] 8f7a4d219ec1911e57433cc94edee93ae29cf839d2a936a889c7acb1fa755066