[INFO] fetching crate ikill 1.2.0...
[INFO] checking ikill-1.2.0 against beta for pr-78714
[INFO] extracting crate ikill 1.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ikill 1.2.0 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 ikill 1.2.0
[INFO] finished tweaking crates.io crate ikill 1.2.0
[INFO] tweaked toml for crates.io crate ikill 1.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ikill 1.2.0 already has a lockfile, it will not be regenerated
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 7ae8a8fc615c4fef333267cb04be7789cc0edbe1864cbede0b5f724751a9ecf3
[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" "7ae8a8fc615c4fef333267cb04be7789cc0edbe1864cbede0b5f724751a9ecf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ae8a8fc615c4fef333267cb04be7789cc0edbe1864cbede0b5f724751a9ecf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae8a8fc615c4fef333267cb04be7789cc0edbe1864cbede0b5f724751a9ecf3", kill_on_drop: false }`
[INFO] [stdout] 7ae8a8fc615c4fef333267cb04be7789cc0edbe1864cbede0b5f724751a9ecf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 71d760a02695ca5f4d7c11a73e66a07a62119128e2be1725806612204c2d614e
[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" "71d760a02695ca5f4d7c11a73e66a07a62119128e2be1725806612204c2d614e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling heim-common v0.1.0-alpha.1
[INFO] [stderr]    Compiling heim-host v0.1.0-alpha.1
[INFO] [stderr]     Checking macaddr v1.0.1
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking platforms v0.2.1
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]     Checking fuzzy-matcher v0.3.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking uom v0.27.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking tuikit v0.3.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking skim v0.8.0
[INFO] [stderr]     Checking heim-runtime v0.1.0-alpha.1
[INFO] [stderr]     Checking heim-cpu v0.1.0-alpha.1
[INFO] [stderr]     Checking heim-net v0.1.0-alpha.1
[INFO] [stderr]     Checking heim-process v0.1.1-alpha.1
[INFO] [stderr]     Checking heim v0.1.0-alpha.1
[INFO] [stderr]     Checking ikill v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `Command { std: "docker" "inspect" "71d760a02695ca5f4d7c11a73e66a07a62119128e2be1725806612204c2d614e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d760a02695ca5f4d7c11a73e66a07a62119128e2be1725806612204c2d614e", kill_on_drop: false }`
[INFO] [stdout] 71d760a02695ca5f4d7c11a73e66a07a62119128e2be1725806612204c2d614e