[INFO] fetching crate samotop-server 1.0.1...
[INFO] documenting samotop-server-1.0.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate samotop-server 1.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate samotop-server 1.0.1 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 samotop-server 1.0.1
[INFO] finished tweaking crates.io crate samotop-server 1.0.1
[INFO] tweaked toml for crates.io crate samotop-server 1.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate samotop-server 1.0.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-channel v1.4.0
[INFO] [stderr]   Downloaded samotop-parser v0.10.0
[INFO] [stderr]   Downloaded async-tls v0.9.0
[INFO] [stderr]   Downloaded fastrand v1.3.4
[INFO] [stderr]   Downloaded polling v0.1.5
[INFO] [stderr]   Downloaded async-trait v0.1.38
[INFO] [stderr]   Downloaded async-mutex v1.1.5
[INFO] [stderr]   Downloaded samotop v0.10.0
[INFO] [stderr]   Downloaded viaspf v0.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 392228cccdf4f3c2ff5df7eed7728a8ff85fa2482698e74f0523aee2843d043b
[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" "392228cccdf4f3c2ff5df7eed7728a8ff85fa2482698e74f0523aee2843d043b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "392228cccdf4f3c2ff5df7eed7728a8ff85fa2482698e74f0523aee2843d043b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "392228cccdf4f3c2ff5df7eed7728a8ff85fa2482698e74f0523aee2843d043b", kill_on_drop: false }`
[INFO] [stdout] 392228cccdf4f3c2ff5df7eed7728a8ff85fa2482698e74f0523aee2843d043b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef4ba2afab340a09094797d7c975feaa74435730a281a3bc55db1de0866dd0a2
[INFO] running `Command { std: "docker" "start" "-a" "ef4ba2afab340a09094797d7c975feaa74435730a281a3bc55db1de0866dd0a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking fastrand v1.3.4
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]     Checking samotop-model v0.10.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking async-mutex v1.1.5
[INFO] [stderr]     Checking async-channel v1.4.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking polling v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]     Checking peg v0.6.3
[INFO] [stderr]     Checking viaspf v0.0.2
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.38
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking samotop-core v0.10.0
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking async-tls v0.9.0
[INFO] [stderr]     Checking samotop-parser v0.10.0
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking samotop v0.10.0
[INFO] [stderr]  Documenting samotop-server v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "ef4ba2afab340a09094797d7c975feaa74435730a281a3bc55db1de0866dd0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef4ba2afab340a09094797d7c975feaa74435730a281a3bc55db1de0866dd0a2", kill_on_drop: false }`
[INFO] [stdout] ef4ba2afab340a09094797d7c975feaa74435730a281a3bc55db1de0866dd0a2