[INFO] fetching crate zipf 6.1.0...
[INFO] checking zipf-6.1.0 against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338
[INFO] extracting crate zipf 6.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate zipf 6.1.0 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 crates.io crate zipf 6.1.0
[INFO] finished tweaking crates.io crate zipf 6.1.0
[INFO] tweaked toml for crates.io crate zipf 6.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1011067595a0ecb8084be1148c2978f75760805aaa18e2b326f04cd9673bb61d
[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" "1011067595a0ecb8084be1148c2978f75760805aaa18e2b326f04cd9673bb61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1011067595a0ecb8084be1148c2978f75760805aaa18e2b326f04cd9673bb61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1011067595a0ecb8084be1148c2978f75760805aaa18e2b326f04cd9673bb61d", kill_on_drop: false }`
[INFO] [stdout] 1011067595a0ecb8084be1148c2978f75760805aaa18e2b326f04cd9673bb61d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 029a065179d40e7cadb6ec26259bafddbfbf82f5a89a82a958f7233b289268e6
[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" "029a065179d40e7cadb6ec26259bafddbfbf82f5a89a82a958f7233b289268e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[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 zipf v6.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.47s
[INFO] running `Command { std: "docker" "inspect" "029a065179d40e7cadb6ec26259bafddbfbf82f5a89a82a958f7233b289268e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "029a065179d40e7cadb6ec26259bafddbfbf82f5a89a82a958f7233b289268e6", kill_on_drop: false }`
[INFO] [stdout] 029a065179d40e7cadb6ec26259bafddbfbf82f5a89a82a958f7233b289268e6