[INFO] fetching crate redocs 0.1.0...
[INFO] checking redocs-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate redocs 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate redocs 0.1.0
[INFO] finished tweaking crates.io crate redocs 0.1.0
[INFO] tweaked toml for crates.io crate redocs 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate redocs 0.1.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] [stderr]       Adding pyo3 v0.21.2 (available: v0.27.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ec0dcd8f086b85685746d38644ed2cef213f9bc76e81b6a5bc095951a73bf23
[INFO] running `Command { std: "docker" "start" "-a" "3ec0dcd8f086b85685746d38644ed2cef213f9bc76e81b6a5bc095951a73bf23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec0dcd8f086b85685746d38644ed2cef213f9bc76e81b6a5bc095951a73bf23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec0dcd8f086b85685746d38644ed2cef213f9bc76e81b6a5bc095951a73bf23", kill_on_drop: false }`
[INFO] [stdout] 3ec0dcd8f086b85685746d38644ed2cef213f9bc76e81b6a5bc095951a73bf23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93981c0ce5fddbaaf1eb6421ca739a0dd4018e7ddc42a8a943bfce34a8dac8aa
[INFO] running `Command { std: "docker" "start" "-a" "93981c0ce5fddbaaf1eb6421ca739a0dd4018e7ddc42a8a943bfce34a8dac8aa", kill_on_drop: false }`
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking build_html v2.7.0
[INFO] [stderr]    Compiling pyo3-build-config v0.21.2
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling pyo3-ffi v0.21.2
[INFO] [stderr]    Compiling pyo3 v0.21.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.21.2
[INFO] [stderr]    Compiling pyo3-macros v0.21.2
[INFO] [stderr]     Checking redocs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Stdout`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Stdout;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Stdout`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Stdout;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `caption_size`, `caption_font`, `caption_color`, and `caption_background` are never read
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Figure {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     caption_size:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 15 |     caption_font:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 16 |     caption_color:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 17 |     caption_background:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Figure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `text_align`, `font_family`, `color`, and `background` are never read
[INFO] [stdout]   --> src/lib.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     text_align:String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 58 |     font_family: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 59 |     color: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 60 |     background: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size`, `text_align`, `font_family`, `color`, and `background` are never read
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout]  98 | struct Paragraph {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout]  99 |     text: String,
[INFO] [stdout] 100 |     size: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 101 |     text_align:String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 102 |     font_family: String,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 103 |     color: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 104 |     background: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Paragraph` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:1
[INFO] [stdout]     |
[INFO] [stdout] 150 | #[pymethods]
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the attribute macro `pymethods` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redocs` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `caption_size`, `caption_font`, `caption_color`, and `caption_background` are never read
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Figure {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     caption_size:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 15 |     caption_font:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 16 |     caption_color:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 17 |     caption_background:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Figure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `text_align`, `font_family`, `color`, and `background` are never read
[INFO] [stdout]   --> src/lib.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     text_align:String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 58 |     font_family: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 59 |     color: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 60 |     background: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size`, `text_align`, `font_family`, `color`, and `background` are never read
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout]  98 | struct Paragraph {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout]  99 |     text: String,
[INFO] [stdout] 100 |     size: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 101 |     text_align:String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 102 |     font_family: String,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 103 |     color: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 104 |     background: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Paragraph` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:1
[INFO] [stdout]     |
[INFO] [stdout] 150 | #[pymethods]
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the attribute macro `pymethods` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redocs` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "93981c0ce5fddbaaf1eb6421ca739a0dd4018e7ddc42a8a943bfce34a8dac8aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93981c0ce5fddbaaf1eb6421ca739a0dd4018e7ddc42a8a943bfce34a8dac8aa", kill_on_drop: false }`
[INFO] [stdout] 93981c0ce5fddbaaf1eb6421ca739a0dd4018e7ddc42a8a943bfce34a8dac8aa
