[INFO] fetching crate azul-text-layout 0.0.4...
[INFO] checking azul-text-layout-0.0.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate azul-text-layout 0.0.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate azul-text-layout 0.0.4
[INFO] finished tweaking crates.io crate azul-text-layout 0.0.4
[INFO] tweaked toml for crates.io crate azul-text-layout 0.0.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate azul-text-layout 0.0.4 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 21 packages to latest compatible versions
[INFO] [stderr]       Adding azul-core v0.0.2 (available: v0.0.5)
[INFO] [stderr]       Adding azul-css v0.0.1 (available: v0.0.5)
[INFO] [stderr]       Adding freetype v0.4.1 (available: v0.7.2)
[INFO] [stderr]       Adding harfbuzz-sys v0.3.4 (available: v0.6.1)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] badc28ddb259d8dddf7ac0580e876fe4a3d9ed28a56fdaf1eb4d92c077f91541
[INFO] running `Command { std: "docker" "start" "-a" "badc28ddb259d8dddf7ac0580e876fe4a3d9ed28a56fdaf1eb4d92c077f91541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "badc28ddb259d8dddf7ac0580e876fe4a3d9ed28a56fdaf1eb4d92c077f91541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "badc28ddb259d8dddf7ac0580e876fe4a3d9ed28a56fdaf1eb4d92c077f91541", kill_on_drop: false }`
[INFO] [stdout] badc28ddb259d8dddf7ac0580e876fe4a3d9ed28a56fdaf1eb4d92c077f91541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 469a57bfa229be35b5fea386288bedbc31a522a21bba2641163999f9934c282c
[INFO] running `Command { std: "docker" "start" "-a" "469a57bfa229be35b5fea386288bedbc31a522a21bba2641163999f9934c282c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling harfbuzz-sys v0.3.4
[INFO] [stderr]     Checking azul-css v0.0.1
[INFO] [stderr]     Checking tinyvec v1.10.0
[INFO] [stderr]     Checking unicode-normalization v0.1.25
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking azul-core v0.0.2
[INFO] [stderr]     Checking azul-text-layout v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `font_bytes` and `font_index` are never read
[INFO] [stdout]   --> src/text_shaping.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct HbFont<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 69 |     font_bytes: &'a [u8],
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 70 |     font_index: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HbFont` 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: field `words` is never read
[INFO] [stdout]    --> src/text_shaping.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct HbBuffer<'a> {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 131 |     words: &'a str,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `HbBuffer` 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<i64, Infallible>
[INFO] [stdout]    --> src/text_shaping.rs:319:31
[INFO] [stdout]     |
[INFO] [stdout] 319 |         let font_size = match FAKE_FONT_SIZE.try_into().ok() { Some(s) => s, None => return baseline };
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `azul-text-layout` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `font_bytes` and `font_index` are never read
[INFO] [stdout]   --> src/text_shaping.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct HbFont<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 69 |     font_bytes: &'a [u8],
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 70 |     font_index: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HbFont` 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: field `words` is never read
[INFO] [stdout]    --> src/text_shaping.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct HbBuffer<'a> {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 131 |     words: &'a str,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `HbBuffer` 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<i64, Infallible>
[INFO] [stdout]    --> src/text_shaping.rs:319:31
[INFO] [stdout]     |
[INFO] [stdout] 319 |         let font_size = match FAKE_FONT_SIZE.try_into().ok() { Some(s) => s, None => return baseline };
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `azul-text-layout` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "469a57bfa229be35b5fea386288bedbc31a522a21bba2641163999f9934c282c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469a57bfa229be35b5fea386288bedbc31a522a21bba2641163999f9934c282c", kill_on_drop: false }`
[INFO] [stdout] 469a57bfa229be35b5fea386288bedbc31a522a21bba2641163999f9934c282c