[INFO] fetching crate ftp-rs 0.2.0...
[INFO] documenting ftp-rs-0.2.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate ftp-rs 0.2.0 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate ftp-rs 0.2.0 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 ftp-rs 0.2.0
[INFO] finished tweaking crates.io crate ftp-rs 0.2.0
[INFO] tweaked toml for crates.io crate ftp-rs 0.2.0 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate crates.io crate ftp-rs 0.2.0 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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] de3dcfa949749a323da59987a7f85182240fc4a28bd6e128934ccc35ef00fe85
[INFO] running `Command { std: "docker" "start" "-a" "de3dcfa949749a323da59987a7f85182240fc4a28bd6e128934ccc35ef00fe85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de3dcfa949749a323da59987a7f85182240fc4a28bd6e128934ccc35ef00fe85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3dcfa949749a323da59987a7f85182240fc4a28bd6e128934ccc35ef00fe85", kill_on_drop: false }`
[INFO] [stdout] de3dcfa949749a323da59987a7f85182240fc4a28bd6e128934ccc35ef00fe85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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] 9cfe1b4d22c06bff522fe2ab5c275e91043aec871395fcea86e2f16977bcb849
[INFO] running `Command { std: "docker" "start" "-a" "9cfe1b4d22c06bff522fe2ab5c275e91043aec871395fcea86e2f16977bcb849", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]  Documenting ftp-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/ftp_client.rs:33:56
[INFO] [stdout]    |
[INFO] [stdout] 33 |     static ref PROT_COMMAND_VALUE: Vec<&'static str> = {vec!["C","E","S","P"]};
[INFO] [stdout]    |                                                        ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 33 -     static ref PROT_COMMAND_VALUE: Vec<&'static str> = {vec!["C","E","S","P"]};
[INFO] [stdout] 33 +     static ref PROT_COMMAND_VALUE: Vec<&'static str> = vec!["C","E","S","P"];
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.66s
[INFO] running `Command { std: "docker" "inspect" "9cfe1b4d22c06bff522fe2ab5c275e91043aec871395fcea86e2f16977bcb849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cfe1b4d22c06bff522fe2ab5c275e91043aec871395fcea86e2f16977bcb849", kill_on_drop: false }`
[INFO] [stdout] 9cfe1b4d22c06bff522fe2ab5c275e91043aec871395fcea86e2f16977bcb849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] f7530079203034548cdd6ee555ed7217fa81aa6873e0383f896d975a3117c63a
[INFO] running `Command { std: "docker" "start" "-a" "f7530079203034548cdd6ee555ed7217fa81aa6873e0383f896d975a3117c63a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]  Documenting ftp-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/ftp_client.rs:33:56
[INFO] [stdout]    |
[INFO] [stdout] 33 |     static ref PROT_COMMAND_VALUE: Vec<&'static str> = {vec!["C","E","S","P"]};
[INFO] [stdout]    |                                                        ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 33 -     static ref PROT_COMMAND_VALUE: Vec<&'static str> = {vec!["C","E","S","P"]};
[INFO] [stdout] 33 +     static ref PROT_COMMAND_VALUE: Vec<&'static str> = vec!["C","E","S","P"];
[INFO] [stdout]    | 
[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" "f7530079203034548cdd6ee555ed7217fa81aa6873e0383f896d975a3117c63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7530079203034548cdd6ee555ed7217fa81aa6873e0383f896d975a3117c63a", kill_on_drop: false }`
[INFO] [stdout] f7530079203034548cdd6ee555ed7217fa81aa6873e0383f896d975a3117c63a