[INFO] fetching crate readline_rs_compat 0.1.9...
[INFO] checking readline_rs_compat-0.1.9 against beta for pr-78714
[INFO] extracting crate readline_rs_compat 0.1.9 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate readline_rs_compat 0.1.9 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 readline_rs_compat 0.1.9
[INFO] finished tweaking crates.io crate readline_rs_compat 0.1.9
[INFO] tweaked toml for crates.io crate readline_rs_compat 0.1.9 written to /workspace/builds/worker-9/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e311fa4e80ee26b8ae869d0f81b72d8a202d46ba963e344c636a07bfd2430a7e
[INFO] running `Command { std: "docker" "start" "-a" "e311fa4e80ee26b8ae869d0f81b72d8a202d46ba963e344c636a07bfd2430a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e311fa4e80ee26b8ae869d0f81b72d8a202d46ba963e344c636a07bfd2430a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e311fa4e80ee26b8ae869d0f81b72d8a202d46ba963e344c636a07bfd2430a7e", kill_on_drop: false }`
[INFO] [stdout] e311fa4e80ee26b8ae869d0f81b72d8a202d46ba963e344c636a07bfd2430a7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 657f144e9d90983391b91234e6de2fa1ecd9c1c1ec3fe379a9c7001824aeb13d
[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" "657f144e9d90983391b91234e6de2fa1ecd9c1c1ec3fe379a9c7001824aeb13d", kill_on_drop: false }`
[INFO] [stderr]    Compiling readline_rs_compat v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "657f144e9d90983391b91234e6de2fa1ecd9c1c1ec3fe379a9c7001824aeb13d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "657f144e9d90983391b91234e6de2fa1ecd9c1c1ec3fe379a9c7001824aeb13d", kill_on_drop: false }`
[INFO] [stdout] 657f144e9d90983391b91234e6de2fa1ecd9c1c1ec3fe379a9c7001824aeb13d