[INFO] fetching crate bench 1.0.0...
[INFO] checking bench-1.0.0 against beta for pr-78714
[INFO] extracting crate bench 1.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate bench 1.0.0 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 crates.io crate bench 1.0.0
[INFO] finished tweaking crates.io crate bench 1.0.0
[INFO] tweaked toml for crates.io crate bench 1.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "+beta" "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-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23d0caf8f7dded4dffb1aa64ac5865016e092d0925597a4b419eb48533355f85
[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" "23d0caf8f7dded4dffb1aa64ac5865016e092d0925597a4b419eb48533355f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23d0caf8f7dded4dffb1aa64ac5865016e092d0925597a4b419eb48533355f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d0caf8f7dded4dffb1aa64ac5865016e092d0925597a4b419eb48533355f85", kill_on_drop: false }`
[INFO] [stdout] 23d0caf8f7dded4dffb1aa64ac5865016e092d0925597a4b419eb48533355f85
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] c8485c069621bca819cb3679ede993d2a221a2c586727779156f6d7c7a890e64
[INFO] running `Command { std: "docker" "start" "-a" "c8485c069621bca819cb3679ede993d2a221a2c586727779156f6d7c7a890e64", kill_on_drop: false }`
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking criterion-stats v0.1.3
[INFO] [stderr]     Checking loggerv v0.6.0
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]     Checking criterion-plot v0.1.3
[INFO] [stderr]     Checking criterion v0.1.2
[INFO] [stderr]     Checking bench v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.93s
[INFO] running `Command { std: "docker" "inspect" "c8485c069621bca819cb3679ede993d2a221a2c586727779156f6d7c7a890e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8485c069621bca819cb3679ede993d2a221a2c586727779156f6d7c7a890e64", kill_on_drop: false }`
[INFO] [stdout] c8485c069621bca819cb3679ede993d2a221a2c586727779156f6d7c7a890e64