[INFO] fetching crate strace-parse 0.4.0...
[INFO] documenting strace-parse-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate strace-parse 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate strace-parse 0.4.0 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 strace-parse 0.4.0
[INFO] finished tweaking crates.io crate strace-parse 0.4.0
[INFO] tweaked toml for crates.io crate strace-parse 0.4.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate strace-parse 0.4.0 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] 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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06efa1cb3a3e660b63988609043edd033e5d419ed87147c5e48336a6169e36ab
[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" "06efa1cb3a3e660b63988609043edd033e5d419ed87147c5e48336a6169e36ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06efa1cb3a3e660b63988609043edd033e5d419ed87147c5e48336a6169e36ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06efa1cb3a3e660b63988609043edd033e5d419ed87147c5e48336a6169e36ab", kill_on_drop: false }`
[INFO] [stdout] 06efa1cb3a3e660b63988609043edd033e5d419ed87147c5e48336a6169e36ab
[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" "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] 29879a64d9b87b8b751079f3009ab8b1fb063106bb4bf693ebcdbd182874690c
[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" "29879a64d9b87b8b751079f3009ab8b1fb063106bb4bf693ebcdbd182874690c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling nom v5.1.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking strace-parse v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting strace-parse v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     error_chain! {
[INFO] [stdout] 15 | |         foreign_links {
[INFO] [stdout] 16 | |             Io(::std::io::Error);
[INFO] [stdout] 17 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:967:13
[INFO] [stdout]     |
[INFO] [stdout] 967 |             std::mem::replace(&mut self.send, send);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.15s
[INFO] running `Command { std: "docker" "inspect" "29879a64d9b87b8b751079f3009ab8b1fb063106bb4bf693ebcdbd182874690c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29879a64d9b87b8b751079f3009ab8b1fb063106bb4bf693ebcdbd182874690c", kill_on_drop: false }`
[INFO] [stdout] 29879a64d9b87b8b751079f3009ab8b1fb063106bb4bf693ebcdbd182874690c