[INFO] fetching crate readenv 0.2.5...
[INFO] documenting readenv-0.2.5 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate readenv 0.2.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate readenv 0.2.5 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate readenv 0.2.5
[INFO] finished tweaking crates.io crate readenv 0.2.5
[INFO] tweaked toml for crates.io crate readenv 0.2.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate readenv 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab09d01a9d861697cb7da2c9f5764271d1ce4c96c0f4cd26464c410c0f9a14a3
[INFO] running `Command { std: "docker" "start" "-a" "ab09d01a9d861697cb7da2c9f5764271d1ce4c96c0f4cd26464c410c0f9a14a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab09d01a9d861697cb7da2c9f5764271d1ce4c96c0f4cd26464c410c0f9a14a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab09d01a9d861697cb7da2c9f5764271d1ce4c96c0f4cd26464c410c0f9a14a3", kill_on_drop: false }`
[INFO] [stdout] ab09d01a9d861697cb7da2c9f5764271d1ce4c96c0f4cd26464c410c0f9a14a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c7d9a5201ca05ab748b81880b1cf6eb075a2fe2b567b9360f342a88965551a
[INFO] running `Command { std: "docker" "start" "-a" "85c7d9a5201ca05ab748b81880b1cf6eb075a2fe2b567b9360f342a88965551a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking errno v0.2.5
[INFO] [stderr]     Checking exec v0.3.1
[INFO] [stderr]  Documenting readenv v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "85c7d9a5201ca05ab748b81880b1cf6eb075a2fe2b567b9360f342a88965551a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c7d9a5201ca05ab748b81880b1cf6eb075a2fe2b567b9360f342a88965551a", kill_on_drop: false }`
[INFO] [stdout] 85c7d9a5201ca05ab748b81880b1cf6eb075a2fe2b567b9360f342a88965551a