[INFO] fetching crate ratsio 0.3.0-alpha.5...
[INFO] documenting ratsio-0.3.0-alpha.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate ratsio 0.3.0-alpha.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ratsio 0.3.0-alpha.5 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ratsio 0.3.0-alpha.5
[INFO] finished tweaking crates.io crate ratsio 0.3.0-alpha.5
[INFO] tweaked toml for crates.io crate ratsio 0.3.0-alpha.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate ratsio 0.3.0-alpha.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-derive v0.6.0
[INFO] [stderr]   Downloaded prost v0.6.0
[INFO] [stderr]   Downloaded prost-build v0.6.0
[INFO] [stderr]   Downloaded prost-types v0.6.0
[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-2020-08-29" "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] 136c2191da262558c222d02733ee3bf3e80168ae5da11f9c217aade0b99dddb3
[INFO] running `Command { std: "docker" "start" "-a" "136c2191da262558c222d02733ee3bf3e80168ae5da11f9c217aade0b99dddb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "136c2191da262558c222d02733ee3bf3e80168ae5da11f9c217aade0b99dddb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136c2191da262558c222d02733ee3bf3e80168ae5da11f9c217aade0b99dddb3", kill_on_drop: false }`
[INFO] [stdout] 136c2191da262558c222d02733ee3bf3e80168ae5da11f9c217aade0b99dddb3
[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" "RUSTDOCFLAGS=--cap-lints=warn" "-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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea9baca7784ef5d22e87ee7759cd47bc18a67137ee44ef2b5b21ed442e1defe5
[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" "ea9baca7784ef5d22e87ee7759cd47bc18a67137ee44ef2b5b21ed442e1defe5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]     Checking pin-project-lite v0.1.2
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking data-encoding v2.2.1
[INFO] [stderr]     Checking atomic-counter v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]     Checking block-buffer v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking openssl-sys v0.9.53
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking openssl v0.10.26
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling prost-build v0.6.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling prost-derive v0.6.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]     Checking tokio v0.2.9
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]    Compiling prost v0.6.0
[INFO] [stderr]    Compiling prost-types v0.6.0
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]    Compiling ratsio v0.3.0-alpha.5 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ratsio v0.3.0-alpha.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "ea9baca7784ef5d22e87ee7759cd47bc18a67137ee44ef2b5b21ed442e1defe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea9baca7784ef5d22e87ee7759cd47bc18a67137ee44ef2b5b21ed442e1defe5", kill_on_drop: false }`
[INFO] [stdout] ea9baca7784ef5d22e87ee7759cd47bc18a67137ee44ef2b5b21ed442e1defe5