[INFO] fetching crate maman 0.13.1...
[INFO] checking maman-0.13.1 against beta for pr-78714
[INFO] extracting crate maman 0.13.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate maman 0.13.1 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 maman 0.13.1
[INFO] finished tweaking crates.io crate maman 0.13.1
[INFO] tweaked toml for crates.io crate maman 0.13.1 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] 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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 489d56c6cdf46b2de261ca8147943b1bf1a8c97c058b0c6a8d33d4280536e48b
[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" "489d56c6cdf46b2de261ca8147943b1bf1a8c97c058b0c6a8d33d4280536e48b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "489d56c6cdf46b2de261ca8147943b1bf1a8c97c058b0c6a8d33d4280536e48b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489d56c6cdf46b2de261ca8147943b1bf1a8c97c058b0c6a8d33d4280536e48b", kill_on_drop: false }`
[INFO] [stdout] 489d56c6cdf46b2de261ca8147943b1bf1a8c97c058b0c6a8d33d4280536e48b
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 2a8e4ee94b3238fffc2531481b15670f3cedba3e54f0e46d7bdb1e1e77677bb2
[INFO] running `Command { std: "docker" "start" "-a" "2a8e4ee94b3238fffc2531481b15670f3cedba3e54f0e46d7bdb1e1e77677bb2", kill_on_drop: false }`
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking mockito v0.14.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking robotparser v0.10.2
[INFO] [stderr]     Checking redis v0.13.0
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]     Checking r2d2_redis v0.12.0
[INFO] [stderr]     Checking sidekiq v0.8.6
[INFO] [stderr]     Checking html5ever v0.22.5
[INFO] [stderr]     Checking maman v0.13.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.66s
[INFO] running `Command { std: "docker" "inspect" "2a8e4ee94b3238fffc2531481b15670f3cedba3e54f0e46d7bdb1e1e77677bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8e4ee94b3238fffc2531481b15670f3cedba3e54f0e46d7bdb1e1e77677bb2", kill_on_drop: false }`
[INFO] [stdout] 2a8e4ee94b3238fffc2531481b15670f3cedba3e54f0e46d7bdb1e1e77677bb2