[INFO] fetching crate frugalos_mds 1.2.0...
[INFO] checking frugalos_mds-1.2.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate frugalos_mds 1.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate frugalos_mds 1.2.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frugalos_mds 1.2.0
[INFO] finished tweaking crates.io crate frugalos_mds 1.2.0
[INFO] tweaked toml for crates.io crate frugalos_mds 1.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] c9f33ab86e4434b7fd2c674cb7f454567d0e6fa5d50935f66dcc829c0bf3bf67
[INFO] running `Command { std: "docker" "start" "-a" "c9f33ab86e4434b7fd2c674cb7f454567d0e6fa5d50935f66dcc829c0bf3bf67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9f33ab86e4434b7fd2c674cb7f454567d0e6fa5d50935f66dcc829c0bf3bf67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9f33ab86e4434b7fd2c674cb7f454567d0e6fa5d50935f66dcc829c0bf3bf67", kill_on_drop: false }`
[INFO] [stdout] c9f33ab86e4434b7fd2c674cb7f454567d0e6fa5d50935f66dcc829c0bf3bf67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91264e95b21bda3bcad4e4afb49f47abab49684537c80d12ee6e669d97adfe40
[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" "91264e95b21bda3bcad4e4afb49f47abab49684537c80d12ee6e669d97adfe40", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking atomic_immut v0.1.4
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking factory v0.1.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking fibers v0.1.13
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking fibers_global v0.1.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]     Checking trackable v1.2.0
[INFO] [stderr]     Checking trackable v0.2.24
[INFO] [stderr]     Checking prometrics v0.1.13
[INFO] [stderr]     Checking bytecodec v0.4.14
[INFO] [stderr]     Checking thrift_codec v0.1.1
[INFO] [stderr]     Checking rustracing v0.1.11
[INFO] [stderr]     Checking rustracing_jaeger v0.1.12
[INFO] [stderr]     Checking tasque v0.1.5
[INFO] [stderr]     Checking raftlog v0.6.0
[INFO] [stderr]     Checking cannyls v0.10.0
[INFO] [stderr]     Checking fibers_tasque v0.1.2
[INFO] [stderr]     Checking frugalos_core v1.2.0
[INFO] [stderr]     Checking fibers_rpc v0.3.4
[INFO] [stderr]     Checking protobuf_codec v0.2.8
[INFO] [stderr]     Checking patricia_tree v0.1.10
[INFO] [stderr]     Checking libfrugalos v0.7.0
[INFO] [stderr]     Checking raftlog_protobuf v0.3.0
[INFO] [stderr]     Checking frugalos_raft v1.2.0
[INFO] [stderr]     Checking frugalos_mds v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "91264e95b21bda3bcad4e4afb49f47abab49684537c80d12ee6e669d97adfe40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91264e95b21bda3bcad4e4afb49f47abab49684537c80d12ee6e669d97adfe40", kill_on_drop: false }`
[INFO] [stdout] 91264e95b21bda3bcad4e4afb49f47abab49684537c80d12ee6e669d97adfe40