[INFO] cloning repository https://github.com/aptend/dbdb-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aptend/dbdb-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faptend%2Fdbdb-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faptend%2Fdbdb-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 167833d9c15d06535fd6506391b9490031a874c4
[INFO] checking aptend/dbdb-rust against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faptend%2Fdbdb-rust" "/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/aptend/dbdb-rust on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aptend/dbdb-rust
[INFO] finished tweaking git repo https://github.com/aptend/dbdb-rust
[INFO] tweaked toml for git repo https://github.com/aptend/dbdb-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/aptend/dbdb-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cef1d44fafa3e2e23934cfb1042a031bb23a1f1e199fe8af54fde3b851db58e5
[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" "cef1d44fafa3e2e23934cfb1042a031bb23a1f1e199fe8af54fde3b851db58e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cef1d44fafa3e2e23934cfb1042a031bb23a1f1e199fe8af54fde3b851db58e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cef1d44fafa3e2e23934cfb1042a031bb23a1f1e199fe8af54fde3b851db58e5", kill_on_drop: false }`
[INFO] [stdout] cef1d44fafa3e2e23934cfb1042a031bb23a1f1e199fe8af54fde3b851db58e5
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] 562438e25fa14d11189895f57db6e3417c3f330903b1f3e8f0bab49fc173d9e6
[INFO] running `Command { std: "docker" "start" "-a" "562438e25fa14d11189895f57db6e3417c3f330903b1f3e8f0bab49fc173d9e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling anyhow v1.0.27
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking cluFlock v1.2.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]     Checking dbdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.65s
[INFO] running `Command { std: "docker" "inspect" "562438e25fa14d11189895f57db6e3417c3f330903b1f3e8f0bab49fc173d9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "562438e25fa14d11189895f57db6e3417c3f330903b1f3e8f0bab49fc173d9e6", kill_on_drop: false }`
[INFO] [stdout] 562438e25fa14d11189895f57db6e3417c3f330903b1f3e8f0bab49fc173d9e6