[INFO] fetching crate playbook 0.4.2...
[INFO] documenting playbook-0.4.2 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate playbook 0.4.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate playbook 0.4.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate playbook 0.4.2
[INFO] finished tweaking crates.io crate playbook 0.4.2
[INFO] tweaked toml for crates.io crate playbook 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] [stderr]   Downloaded mashup v0.1.14+deprecated
[INFO] [stderr]   Downloaded rpds v0.5.0
[INFO] [stderr]   Downloaded impersonate v0.0.3
[INFO] [stderr]   Downloaded nix v0.12.1
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.5.4
[INFO] [stderr]   Downloaded mashup-impl v0.1.14+deprecated
[INFO] [stderr]   Downloaded pyo3cls v0.5.4
[INFO] [stderr]   Downloaded pyo3 v0.5.4
[INFO] [stderr]   Downloaded fern v0.5.9
[INFO] [stderr]   Downloaded ymlctx v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a13ac02775f4c4da6c4e8cd0aa7dca7f01633d22bb58ff5f1b836f05cc11bf51
[INFO] running `Command { std: "docker" "start" "-a" "a13ac02775f4c4da6c4e8cd0aa7dca7f01633d22bb58ff5f1b836f05cc11bf51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a13ac02775f4c4da6c4e8cd0aa7dca7f01633d22bb58ff5f1b836f05cc11bf51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a13ac02775f4c4da6c4e8cd0aa7dca7f01633d22bb58ff5f1b836f05cc11bf51", kill_on_drop: false }`
[INFO] [stdout] a13ac02775f4c4da6c4e8cd0aa7dca7f01633d22bb58ff5f1b836f05cc11bf51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c7543b2ef8b7a4aa253c26555a547f66718f8dd221c0de019eb81adbdd96d77
[INFO] running `Command { std: "docker" "start" "-a" "5c7543b2ef8b7a4aa253c26555a547f66718f8dd221c0de019eb81adbdd96d77", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling nix v0.12.1
[INFO] [stderr]    Compiling impersonate v0.0.3
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking rpds v0.5.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking serde_json v1.0.96
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking ymlctx v0.1.8
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]  Documenting playbook v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking playbook v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/lang/python.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::result::Result`
[INFO] [stdout]  --> src/lang/python.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context`, `CtxObj`
[INFO] [stdout]  --> src/lang/python.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ymlctx::context::{Context, CtxObj};
[INFO] [stdout]   |                       ^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TaskErrorSource`, `TaskError`
[INFO] [stdout]  --> src/lang/python.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{TaskError, TaskErrorSource};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/lang/python.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Write; // for flushing stdio
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/systems/mod.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn start<I>(&self, Context, I) -> Result<String, TaskError>
[INFO] [stdout]    |                        ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Context`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/systems/mod.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn start<I>(&self, Context, I) -> Result<String, TaskError>
[INFO] [stdout]    |                                 ^ help: try naming the parameter or explicitly ignoring it: `_: I`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/builtins.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 276 |     unimplemented!();
[INFO] [stdout]     |     ---------------- any code following this expression is unreachable
[INFO] [stdout] 277 |     let nproc = pool.len();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/systems/docker.rs:38:33
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let newline_len = id_stdout.trim_right().len();
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let newline_len = id_stdout.trim_end().len();
[INFO] [stdout]    |                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nproc`
[INFO] [stdout]    --> src/builtins.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |     let nproc = pool.len();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nproc`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grid`
[INFO] [stdout]    --> src/builtins.rs:275:14
[INFO] [stdout]     |
[INFO] [stdout] 275 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stdout]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]    --> src/builtins.rs:275:34
[INFO] [stdout]     |
[INFO] [stdout] 275 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `Command { std: "docker" "inspect" "5c7543b2ef8b7a4aa253c26555a547f66718f8dd221c0de019eb81adbdd96d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c7543b2ef8b7a4aa253c26555a547f66718f8dd221c0de019eb81adbdd96d77", kill_on_drop: false }`
[INFO] [stdout] 5c7543b2ef8b7a4aa253c26555a547f66718f8dd221c0de019eb81adbdd96d77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60db2bc56ac6efab3134e38409527b760f783b2aa8402080e06de3f8c2692da7
[INFO] running `Command { std: "docker" "start" "-a" "60db2bc56ac6efab3134e38409527b760f783b2aa8402080e06de3f8c2692da7", kill_on_drop: false }`
[INFO] [stderr]  Documenting playbook v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "60db2bc56ac6efab3134e38409527b760f783b2aa8402080e06de3f8c2692da7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60db2bc56ac6efab3134e38409527b760f783b2aa8402080e06de3f8c2692da7", kill_on_drop: false }`
[INFO] [stdout] 60db2bc56ac6efab3134e38409527b760f783b2aa8402080e06de3f8c2692da7
