[INFO] cloning repository https://github.com/Dylan-DPC/thread-lifetime-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dylan-DPC/thread-lifetime-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fthread-lifetime-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fthread-lifetime-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8a4f3f52d9fb0400d8eb2ba5f57911ceef3ba11
[INFO] documenting Dylan-DPC/thread-lifetime-experiment against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fthread-lifetime-experiment" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dylan-DPC/thread-lifetime-experiment on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dylan-DPC/thread-lifetime-experiment
[INFO] finished tweaking git repo https://github.com/Dylan-DPC/thread-lifetime-experiment
[INFO] tweaked toml for git repo https://github.com/Dylan-DPC/thread-lifetime-experiment written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Dylan-DPC/thread-lifetime-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/Licenser/simdjson-rs`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rental v0.5.3
[INFO] [stderr]   Downloaded rental-impl v0.5.2
[INFO] [stderr]   Downloaded serde_derive v1.0.90
[INFO] [stderr]   Downloaded page_size v0.4.1
[INFO] [stderr]   Downloaded syn v0.15.30
[INFO] [stderr]   Downloaded serde v1.0.90
[INFO] [stderr]   Downloaded hashbrown v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 3fd858d510948942be2b69dfeb18d6fe9a8daf709967549530ffde9870582764
[INFO] running `Command { std: "docker" "start" "-a" "3fd858d510948942be2b69dfeb18d6fe9a8daf709967549530ffde9870582764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fd858d510948942be2b69dfeb18d6fe9a8daf709967549530ffde9870582764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd858d510948942be2b69dfeb18d6fe9a8daf709967549530ffde9870582764", kill_on_drop: false }`
[INFO] [stdout] 3fd858d510948942be2b69dfeb18d6fe9a8daf709967549530ffde9870582764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 805fd0db882c43c7b1bab03020168e51e8428da3c6165897341969a2f91947fc
[INFO] running `Command { std: "docker" "start" "-a" "805fd0db882c43c7b1bab03020168e51e8428da3c6165897341969a2f91947fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking page_size v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling rental-impl v0.5.2
[INFO] [stderr]     Checking rental v0.5.3
[INFO] [stderr]     Checking hashbrown v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking simdjson v0.1.0 (https://github.com/Licenser/simdjson-rs#4d53c41a)
[INFO] [stderr]  Documenting thread-lifetime-experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "805fd0db882c43c7b1bab03020168e51e8428da3c6165897341969a2f91947fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "805fd0db882c43c7b1bab03020168e51e8428da3c6165897341969a2f91947fc", kill_on_drop: false }`
[INFO] [stdout] 805fd0db882c43c7b1bab03020168e51e8428da3c6165897341969a2f91947fc