[INFO] fetching crate wasmer-vfs 2.2.1...
[INFO] documenting wasmer-vfs-2.2.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate wasmer-vfs 2.2.1 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate wasmer-vfs 2.2.1 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 wasmer-vfs 2.2.1
[INFO] finished tweaking crates.io crate wasmer-vfs 2.2.1
[INFO] tweaked toml for crates.io crate wasmer-vfs 2.2.1 written to /workspace/builds/worker-35/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 6be8f45e543c4257fbb74828f06ac30fa3b025f4f8c3a7afca7aebfd016604cc
[INFO] running `Command { std: "docker" "start" "-a" "6be8f45e543c4257fbb74828f06ac30fa3b025f4f8c3a7afca7aebfd016604cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6be8f45e543c4257fbb74828f06ac30fa3b025f4f8c3a7afca7aebfd016604cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6be8f45e543c4257fbb74828f06ac30fa3b025f4f8c3a7afca7aebfd016604cc", kill_on_drop: false }`
[INFO] [stdout] 6be8f45e543c4257fbb74828f06ac30fa3b025f4f8c3a7afca7aebfd016604cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 11b600810f2842c5be15cef19e0a474d14613253f2456b5e46a483ee7c631382
[INFO] running `Command { std: "docker" "start" "-a" "11b600810f2842c5be15cef19e0a474d14613253f2456b5e46a483ee7c631382", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]  Documenting wasmer-vfs v2.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: public documentation for `FileSystem` links to private item `FileSystemInner`
[INFO] [stdout]   --> src/mem_fs/filesystem.rs:14:34
[INFO] [stdout]    |
[INFO] [stdout] 14 | /// It's a thin wrapper around [`FileSystemInner`]. This `FileSystem`
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^ this item is private
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::private_intra_doc_links)]` on by default
[INFO] [stdout]    = note: this link resolves only because you passed `--document-private-items`, but will break without
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.05s
[INFO] running `Command { std: "docker" "inspect" "11b600810f2842c5be15cef19e0a474d14613253f2456b5e46a483ee7c631382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11b600810f2842c5be15cef19e0a474d14613253f2456b5e46a483ee7c631382", kill_on_drop: false }`
[INFO] [stdout] 11b600810f2842c5be15cef19e0a474d14613253f2456b5e46a483ee7c631382
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 35a5fc0dc084d371a23d8f20f7338793c1c5db99692614612efee143f0e1d7f3
[INFO] running `Command { std: "docker" "start" "-a" "35a5fc0dc084d371a23d8f20f7338793c1c5db99692614612efee143f0e1d7f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]  Documenting wasmer-vfs v2.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: public documentation for `FileSystem` links to private item `FileSystemInner`
[INFO] [stdout]   --> src/mem_fs/filesystem.rs:14:34
[INFO] [stdout]    |
[INFO] [stdout] 14 | /// It's a thin wrapper around [`FileSystemInner`]. This `FileSystem`
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^ this item is private
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::private_intra_doc_links)]` on by default
[INFO] [stdout]    = note: this link resolves only because you passed `--document-private-items`, but will break without
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.36s
[INFO] running `Command { std: "docker" "inspect" "35a5fc0dc084d371a23d8f20f7338793c1c5db99692614612efee143f0e1d7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a5fc0dc084d371a23d8f20f7338793c1c5db99692614612efee143f0e1d7f3", kill_on_drop: false }`
[INFO] [stdout] 35a5fc0dc084d371a23d8f20f7338793c1c5db99692614612efee143f0e1d7f3