[INFO] fetching crate plan9 0.1.1...
[INFO] checking plan9-0.1.1 against beta for pr-78714
[INFO] extracting crate plan9 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate plan9 0.1.1 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 plan9 0.1.1
[INFO] finished tweaking crates.io crate plan9 0.1.1
[INFO] tweaked toml for crates.io crate plan9 0.1.1 written to /workspace/builds/worker-5/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f8fdda52233319b439ce0288e4121a0e884e1b48fb06c05f6cbecefd901867db
[INFO] running `Command { std: "docker" "start" "-a" "f8fdda52233319b439ce0288e4121a0e884e1b48fb06c05f6cbecefd901867db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8fdda52233319b439ce0288e4121a0e884e1b48fb06c05f6cbecefd901867db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8fdda52233319b439ce0288e4121a0e884e1b48fb06c05f6cbecefd901867db", kill_on_drop: false }`
[INFO] [stdout] f8fdda52233319b439ce0288e4121a0e884e1b48fb06c05f6cbecefd901867db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] f1c4df89355423a49949f711e41899b73d22bc28df11c9e5a09e98f365c99a98
[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" "f1c4df89355423a49949f711e41899b73d22bc28df11c9e5a09e98f365c99a98", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking nine v0.5.0
[INFO] [stderr]     Checking lsp-types v0.82.0
[INFO] [stderr]     Checking plan9 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.86s
[INFO] running `Command { std: "docker" "inspect" "f1c4df89355423a49949f711e41899b73d22bc28df11c9e5a09e98f365c99a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c4df89355423a49949f711e41899b73d22bc28df11c9e5a09e98f365c99a98", kill_on_drop: false }`
[INFO] [stdout] f1c4df89355423a49949f711e41899b73d22bc28df11c9e5a09e98f365c99a98