[INFO] cloning repository https://github.com/rgrochowicz/rust-rocksdb-merge-oddity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rgrochowicz/rust-rocksdb-merge-oddity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgrochowicz%2Frust-rocksdb-merge-oddity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgrochowicz%2Frust-rocksdb-merge-oddity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76a26ce731f6ba8c292fb00a1e91615741430ff7
[INFO] checking rgrochowicz/rust-rocksdb-merge-oddity against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgrochowicz%2Frust-rocksdb-merge-oddity" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rgrochowicz/rust-rocksdb-merge-oddity on toolchain ffa2e7ae8fbf9badc035740db949b9dae271c29f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rgrochowicz/rust-rocksdb-merge-oddity
[INFO] finished tweaking git repo https://github.com/rgrochowicz/rust-rocksdb-merge-oddity
[INFO] tweaked toml for git repo https://github.com/rgrochowicz/rust-rocksdb-merge-oddity written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rgrochowicz/rust-rocksdb-merge-oddity already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 541e33fd4927608aa0e0fd7d80e4e166a79a436916a72252f10ac8a31d90be12
[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" "541e33fd4927608aa0e0fd7d80e4e166a79a436916a72252f10ac8a31d90be12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "541e33fd4927608aa0e0fd7d80e4e166a79a436916a72252f10ac8a31d90be12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541e33fd4927608aa0e0fd7d80e4e166a79a436916a72252f10ac8a31d90be12", kill_on_drop: false }`
[INFO] [stdout] 541e33fd4927608aa0e0fd7d80e4e166a79a436916a72252f10ac8a31d90be12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c31153e7bfa5284f5e67c53ced3607540069d197ef9e913eab0d63e81bbff89
[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" "0c31153e7bfa5284f5e67c53ced3607540069d197ef9e913eab0d63e81bbff89", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]     Checking crc v1.8.1
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling lz4-sys v1.8.0 (https://github.com/busyjay/lz4-rs.git?branch=adjust-build#41509fea)
[INFO] [stderr]    Compiling libz-sys v1.0.18 (https://github.com/busyjay/libz-sys.git?branch=static-link#bb77b618)
[INFO] [stderr]    Compiling snappy-sys v0.1.0 (https://github.com/busyjay/rust-snappy.git?branch=static-link#be021783)
[INFO] [stderr]    Compiling bzip2-sys v0.1.6 (https://github.com/alexcrichton/bzip2-rs.git#54aef435)
[INFO] [stderr]    Compiling librocksdb_sys v0.1.0 (https://github.com/pingcap/rust-rocksdb.git?branch=master#f7205e63)
[INFO] [stderr]    Compiling blob v0.2.0
[INFO] [stderr]    Compiling zstd-sys v1.4.5+zstd.1.3.6 (https://github.com/gyscos/zstd-rs.git#6e9fc3aa)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "0c31153e7bfa5284f5e67c53ced3607540069d197ef9e913eab0d63e81bbff89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c31153e7bfa5284f5e67c53ced3607540069d197ef9e913eab0d63e81bbff89", kill_on_drop: false }`
[INFO] [stdout] 0c31153e7bfa5284f5e67c53ced3607540069d197ef9e913eab0d63e81bbff89