[INFO] fetching crate cssengine 0.1.2...
[INFO] checking cssengine-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cssengine 0.1.2 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate cssengine 0.1.2
[INFO] finished tweaking crates.io crate cssengine 0.1.2
[INFO] tweaked toml for crates.io crate cssengine 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cssengine 0.1.2 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] crate crates.io crate cssengine 0.1.2 already has a lockfile, it will not be regenerated
[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] 0beec0c313b7c1ae642483b8b41731e3e3b43855a9712870d31f8a6bb22b2bf9
[INFO] running `Command { std: "docker" "start" "-a" "0beec0c313b7c1ae642483b8b41731e3e3b43855a9712870d31f8a6bb22b2bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0beec0c313b7c1ae642483b8b41731e3e3b43855a9712870d31f8a6bb22b2bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0beec0c313b7c1ae642483b8b41731e3e3b43855a9712870d31f8a6bb22b2bf9", kill_on_drop: false }`
[INFO] [stdout] 0beec0c313b7c1ae642483b8b41731e3e3b43855a9712870d31f8a6bb22b2bf9
[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] d07ccca0b1c9a38520119e0b118cb968a5d1c0cf461fe23f7db0fd00f4adae54
[INFO] running `Command { std: "docker" "start" "-a" "d07ccca0b1c9a38520119e0b118cb968a5d1c0cf461fe23f7db0fd00f4adae54", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.43
[INFO] [stderr]     Checking bitflags v2.7.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking grid v0.15.0
[INFO] [stderr]     Checking csscolorparser v0.7.0
[INFO] [stderr]     Checking condtype v1.3.0
[INFO] [stderr]     Checking regex-lite v0.1.6
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking taffy v0.6.3
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking cssengine v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tmp_generated` is never read
[INFO] [stdout]   --> src/style.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct StyleSheet {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 24 |     rules: SmallVec<[(Selector, SmallVec<[Declaration; 32]>); 32]>,
[INFO] [stdout] 25 |     tmp_generated: SmallVec<[Declaration; 32]>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn css_to_rules(input: &str) -> Result<Vec<Rule<'_>>, Vec<SyntaxError>> {
[INFO] [stdout]    |                            ^^^^                     ^^        ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |                        |
[INFO] [stdout]    |                            |                        the same lifetime is elided here
[INFO] [stdout]    |                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn css_to_rules(input: &str) -> Result<Vec<Rule<'_>>, Vec<SyntaxError<'_>>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn analyze(input: &str) -> Result<(), Vec<SyntaxError>> {
[INFO] [stdout]    |                       ^^^^                    ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn analyze(input: &str) -> Result<(), Vec<SyntaxError<'_>>> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<px::Px, Infallible>
[INFO] [stdout]    --> src/parser/values.rs:111:22
[INFO] [stdout]     |
[INFO] [stdout] 111 |         Ok(value) => value.try_into().ok(),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<px::Pct, Infallible>
[INFO] [stdout]    --> src/parser/values.rs:119:22
[INFO] [stdout]     |
[INFO] [stdout] 119 |         Ok(value) => value.try_into().ok(),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking terminal_size v0.4.1
[INFO] [stderr] error: could not compile `cssengine` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d07ccca0b1c9a38520119e0b118cb968a5d1c0cf461fe23f7db0fd00f4adae54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d07ccca0b1c9a38520119e0b118cb968a5d1c0cf461fe23f7db0fd00f4adae54", kill_on_drop: false }`
[INFO] [stdout] d07ccca0b1c9a38520119e0b118cb968a5d1c0cf461fe23f7db0fd00f4adae54
