[INFO] fetching crate approx 0.5.1...
[INFO] documenting approx-0.5.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate approx 0.5.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate approx 0.5.1 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 approx 0.5.1
[INFO] finished tweaking crates.io crate approx 0.5.1
[INFO] tweaked toml for crates.io crate approx 0.5.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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] c1eeea0ecd1021a3403ce9908508e616c3752da0d0c10c72baa373e2cf9b7403
[INFO] running `Command { std: "docker" "start" "-a" "c1eeea0ecd1021a3403ce9908508e616c3752da0d0c10c72baa373e2cf9b7403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1eeea0ecd1021a3403ce9908508e616c3752da0d0c10c72baa373e2cf9b7403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1eeea0ecd1021a3403ce9908508e616c3752da0d0c10c72baa373e2cf9b7403", kill_on_drop: false }`
[INFO] [stdout] c1eeea0ecd1021a3403ce9908508e616c3752da0d0c10c72baa373e2cf9b7403
[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" "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] 47fac1422c8b08613fd6ab8ab48bed1ca810e271530aa6d480d3c858c0e87e95
[INFO] running `Command { std: "docker" "start" "-a" "47fac1422c8b08613fd6ab8ab48bed1ca810e271530aa6d480d3c858c0e87e95", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]  Documenting approx v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.35s
[INFO] running `Command { std: "docker" "inspect" "47fac1422c8b08613fd6ab8ab48bed1ca810e271530aa6d480d3c858c0e87e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47fac1422c8b08613fd6ab8ab48bed1ca810e271530aa6d480d3c858c0e87e95", kill_on_drop: false }`
[INFO] [stdout] 47fac1422c8b08613fd6ab8ab48bed1ca810e271530aa6d480d3c858c0e87e95
[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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "std num-complex" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 5cc858a4937e3a36ee712ed75316849aaba9968d4dba40e4260e8cf72f7f86ac
[INFO] running `Command { std: "docker" "start" "-a" "5cc858a4937e3a36ee712ed75316849aaba9968d4dba40e4260e8cf72f7f86ac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]  Documenting approx v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.91s
[INFO] running `Command { std: "docker" "inspect" "5cc858a4937e3a36ee712ed75316849aaba9968d4dba40e4260e8cf72f7f86ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cc858a4937e3a36ee712ed75316849aaba9968d4dba40e4260e8cf72f7f86ac", kill_on_drop: false }`
[INFO] [stdout] 5cc858a4937e3a36ee712ed75316849aaba9968d4dba40e4260e8cf72f7f86ac