[INFO] fetching crate stretch2 0.4.2...
[INFO] documenting stretch2-0.4.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate stretch2 0.4.2 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate stretch2 0.4.2 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 stretch2 0.4.2
[INFO] finished tweaking crates.io crate stretch2 0.4.2
[INFO] tweaked toml for crates.io crate stretch2 0.4.2 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate crates.io crate stretch2 0.4.2 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stable_deref_trait v1.2.0
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded hashbrown v0.12.1
[INFO] [stderr]   Downloaded rayon v1.5.2
[INFO] [stderr]   Downloaded rayon-core v1.9.2
[INFO] [stderr]   Downloaded libc v0.2.125
[INFO] [stderr]   Downloaded hash32 v0.2.1
[INFO] [stderr]   Downloaded arrayvec v0.7.2
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.37
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded spin v0.9.3
[INFO] [stderr]   Downloaded heapless v0.7.10
[INFO] [stderr]   Downloaded syn v1.0.92
[INFO] [stderr]   Downloaded serde_json v1.0.80
[INFO] [stderr]   Downloaded riscv v0.7.0
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded embedded-hal v0.2.7
[INFO] [stderr]   Downloaded cortex-m v0.7.4
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded hash32-derive v0.1.1
[INFO] [stderr]   Downloaded bit_field v0.10.1
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] [stdout] 14e5075574ab38aa25a539c224018d1da231c1965990300b3c7997ccf591c7fb
[INFO] running `Command { std: "docker" "start" "-a" "14e5075574ab38aa25a539c224018d1da231c1965990300b3c7997ccf591c7fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14e5075574ab38aa25a539c224018d1da231c1965990300b3c7997ccf591c7fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e5075574ab38aa25a539c224018d1da231c1965990300b3c7997ccf591c7fb", kill_on_drop: false }`
[INFO] [stdout] 14e5075574ab38aa25a539c224018d1da231c1965990300b3c7997ccf591c7fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 757911e177f70ff18931409fc36c080a6332412ddc13361dfcbad2a24b0b67e9
[INFO] running `Command { std: "docker" "start" "-a" "757911e177f70ff18931409fc36c080a6332412ddc13361dfcbad2a24b0b67e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]    Compiling hash32-derive v0.1.1
[INFO] [stderr]  Documenting stretch2 v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.82s
[INFO] running `Command { std: "docker" "inspect" "757911e177f70ff18931409fc36c080a6332412ddc13361dfcbad2a24b0b67e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "757911e177f70ff18931409fc36c080a6332412ddc13361dfcbad2a24b0b67e9", kill_on_drop: false }`
[INFO] [stdout] 757911e177f70ff18931409fc36c080a6332412ddc13361dfcbad2a24b0b67e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 73cba5977d8d0b9e1bb694f9a4867b3424b1cc291dc037976b64b83e9706263f
[INFO] running `Command { std: "docker" "start" "-a" "73cba5977d8d0b9e1bb694f9a4867b3424b1cc291dc037976b64b83e9706263f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]    Compiling hash32-derive v0.1.1
[INFO] [stderr]  Documenting stretch2 v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.04s
[INFO] running `Command { std: "docker" "inspect" "73cba5977d8d0b9e1bb694f9a4867b3424b1cc291dc037976b64b83e9706263f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73cba5977d8d0b9e1bb694f9a4867b3424b1cc291dc037976b64b83e9706263f", kill_on_drop: false }`
[INFO] [stdout] 73cba5977d8d0b9e1bb694f9a4867b3424b1cc291dc037976b64b83e9706263f