[INFO] fetching crate expresso 0.2.5...
[INFO] documenting expresso-0.2.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate expresso 0.2.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate expresso 0.2.5 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 crates.io crate expresso 0.2.5
[INFO] finished tweaking crates.io crate expresso 0.2.5
[INFO] tweaked toml for crates.io crate expresso 0.2.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate expresso 0.2.5 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6527892f49260e9ee8d2f92cf668daf27031c0457d8d925ea303a52c3f0e9496
[INFO] running `Command { std: "docker" "start" "-a" "6527892f49260e9ee8d2f92cf668daf27031c0457d8d925ea303a52c3f0e9496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6527892f49260e9ee8d2f92cf668daf27031c0457d8d925ea303a52c3f0e9496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6527892f49260e9ee8d2f92cf668daf27031c0457d8d925ea303a52c3f0e9496", kill_on_drop: false }`
[INFO] [stdout] 6527892f49260e9ee8d2f92cf668daf27031c0457d8d925ea303a52c3f0e9496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 5fc0fca9932ef88d75236cf875f15fb405c1f426b3dd8678ed1e160c9810b34d
[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" "5fc0fca9932ef88d75236cf875f15fb405c1f426b3dd8678ed1e160c9810b34d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]  Documenting expresso v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.89s
[INFO] running `Command { std: "docker" "inspect" "5fc0fca9932ef88d75236cf875f15fb405c1f426b3dd8678ed1e160c9810b34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc0fca9932ef88d75236cf875f15fb405c1f426b3dd8678ed1e160c9810b34d", kill_on_drop: false }`
[INFO] [stdout] 5fc0fca9932ef88d75236cf875f15fb405c1f426b3dd8678ed1e160c9810b34d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] bb196a3fa03c550ff9c5a42f86144babe127634ec4c942560954c7aa80b8ee74
[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" "bb196a3fa03c550ff9c5a42f86144babe127634ec4c942560954c7aa80b8ee74", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]  Documenting expresso v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.78s
[INFO] running `Command { std: "docker" "inspect" "bb196a3fa03c550ff9c5a42f86144babe127634ec4c942560954c7aa80b8ee74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb196a3fa03c550ff9c5a42f86144babe127634ec4c942560954c7aa80b8ee74", kill_on_drop: false }`
[INFO] [stdout] bb196a3fa03c550ff9c5a42f86144babe127634ec4c942560954c7aa80b8ee74