[INFO] fetching crate two-rusty-forks 0.4.0...
[INFO] checking two-rusty-forks-0.4.0 against beta for pr-78714
[INFO] extracting crate two-rusty-forks 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate two-rusty-forks 0.4.0 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 two-rusty-forks 0.4.0
[INFO] finished tweaking crates.io crate two-rusty-forks 0.4.0
[INFO] tweaked toml for crates.io crate two-rusty-forks 0.4.0 written to /workspace/builds/worker-6/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.10
[INFO] [stderr]   Downloaded wasi v0.9.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded quick-error v1.2.3
[INFO] [stderr]   Downloaded redox_syscall v0.1.57
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded fnv v1.0.7
[INFO] [stderr]   Downloaded rand v0.7.3
[INFO] [stderr]   Downloaded rand_chacha v0.2.2
[INFO] [stderr]   Downloaded two-rusty-forks-macro v0.4.0
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded tempfile v3.1.0
[INFO] [stderr]   Downloaded remove_dir_all v0.5.3
[INFO] [stderr]   Downloaded rand_hc v0.2.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.10
[INFO] [stderr]   Downloaded rand_core v0.5.1
[INFO] [stderr]   Downloaded getrandom v0.1.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bec1d99d6b11652e7fc3304b13c481523b4c2664a2f386a64528c6eeb6be3cde
[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" "bec1d99d6b11652e7fc3304b13c481523b4c2664a2f386a64528c6eeb6be3cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bec1d99d6b11652e7fc3304b13c481523b4c2664a2f386a64528c6eeb6be3cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bec1d99d6b11652e7fc3304b13c481523b4c2664a2f386a64528c6eeb6be3cde", kill_on_drop: false }`
[INFO] [stdout] bec1d99d6b11652e7fc3304b13c481523b4c2664a2f386a64528c6eeb6be3cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd6f3e023a4509c5043a930747a8fa8fc7713ef9638ed8d29489b499b6a46cc4
[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" "fd6f3e023a4509c5043a930747a8fa8fc7713ef9638ed8d29489b499b6a46cc4", kill_on_drop: false }`
[INFO] [stderr]     Checking two-rusty-forks v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "fd6f3e023a4509c5043a930747a8fa8fc7713ef9638ed8d29489b499b6a46cc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd6f3e023a4509c5043a930747a8fa8fc7713ef9638ed8d29489b499b6a46cc4", kill_on_drop: false }`
[INFO] [stdout] fd6f3e023a4509c5043a930747a8fa8fc7713ef9638ed8d29489b499b6a46cc4