[INFO] fetching crate lightningcss 1.0.0-alpha.68...
[INFO] checking lightningcss-1.0.0-alpha.68 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate lightningcss 1.0.0-alpha.68 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate lightningcss 1.0.0-alpha.68
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lightningcss 1.0.0-alpha.68
[INFO] tweaked toml for crates.io crate lightningcss 1.0.0-alpha.68 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lightningcss 1.0.0-alpha.68 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 lightningcss 1.0.0-alpha.68 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] [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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f654f07b0b9f65968017d9cb03de2514635bc179b59dce79f42d7a679362d3a4
[INFO] running `Command { std: "docker" "start" "-a" "f654f07b0b9f65968017d9cb03de2514635bc179b59dce79f42d7a679362d3a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f654f07b0b9f65968017d9cb03de2514635bc179b59dce79f42d7a679362d3a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f654f07b0b9f65968017d9cb03de2514635bc179b59dce79f42d7a679362d3a4", kill_on_drop: false }`
[INFO] [stdout] f654f07b0b9f65968017d9cb03de2514635bc179b59dce79f42d7a679362d3a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6ffa4964c53baf1955ec66313668edcd4045bdc94286d49f9d5bf0030c418220
[INFO] running `Command { std: "docker" "start" "-a" "6ffa4964c53baf1955ec66313668edcd4045bdc94286d49f9d5bf0030c418220", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking predicates-core v1.0.9
[INFO] [stderr]     Checking dtoa v1.0.9
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling rkyv v0.7.45
[INFO] [stderr]     Checking outref v0.1.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v0.38.42
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking simd-abstraction v0.7.1
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking termtree v0.5.1
[INFO] [stderr]    Compiling pastey v0.1.0
[INFO] [stderr]     Checking data-url v0.1.1
[INFO] [stderr]     Checking base64-simd v0.7.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking rustc-hash v2.1.0
[INFO] [stderr]     Checking predicates-tree v1.0.12
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]     Checking vlq v0.5.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling assert_cmd v2.0.16
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]    Compiling parcel_selectors v0.28.2
[INFO] [stderr]     Checking data-encoding v2.6.0
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking tempfile v3.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling rkyv_derive v0.7.45
[INFO] [stderr]    Compiling const-str-proc-macro v0.3.2
[INFO] [stderr]    Compiling lightningcss-derive v1.0.0-alpha.43
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking const-str v0.3.2
[INFO] [stderr]     Checking bstr v1.11.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking cssparser v0.33.0
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking globset v0.4.15
[INFO] [stderr]     Checking cssparser-color v0.1.0
[INFO] [stderr]     Checking ignore v0.4.23
[INFO] [stderr]     Checking globwalk v0.9.1
[INFO] [stderr]     Checking assert_fs v1.1.2
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking indexmap v2.7.0
[INFO] [stderr]     Checking serde-content v0.1.2
[INFO] [stderr]     Checking parcel_sourcemap v2.1.1
[INFO] [stderr]     Checking lightningcss v1.0.0-alpha.68 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `browsers` is never read
[INFO] [stdout]     --> src/compat.rs:5745:7
[INFO] [stdout]      |
[INFO] [stdout] 5745 |       browsers.samsung = None;
[INFO] [stdout]      |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `browsers` is never read
[INFO] [stdout]     --> src/compat.rs:5745:7
[INFO] [stdout]      |
[INFO] [stdout] 5745 |       browsers.samsung = None;
[INFO] [stdout]      |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]     --> src/properties/custom.rs:1084:28
[INFO] [stdout]      |
[INFO] [stdout] 1084 |   let bits: u32 = unsafe { std::mem::transmute(v) };
[INFO] [stdout]      |                            -------------------^^^
[INFO] [stdout]      |                            |
[INFO] [stdout]      |                            help: replace this with: `f32::to_bits`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Calc<length::Length>, Infallible>
[INFO] [stdout]    --> src/values/length.rs:659:74
[INFO] [stdout]     |
[INFO] [stdout] 659 |       (Length::Calc(a), Length::Calc(b)) => return Length::Calc(Box::new(a.add(*b).unwrap())),
[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<Calc<DimensionPercentage<D>>, Infallible>
[INFO] [stdout]    --> src/values/percentage.rs:355:44
[INFO] [stdout]     |
[INFO] [stdout] 355 |         DimensionPercentage::Calc(Box::new(a.add(*b).unwrap()))
[INFO] [stdout]     |                                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lightningcss` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/media_query.rs:1847:15
[INFO] [stdout]      |
[INFO] [stdout] 1847 |   fn parse(s: &str) -> MediaQuery {
[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]      = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1847 |   fn parse(s: &str) -> MediaQuery<'_> {
[INFO] [stdout]      |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]     --> src/properties/custom.rs:1084:28
[INFO] [stdout]      |
[INFO] [stdout] 1084 |   let bits: u32 = unsafe { std::mem::transmute(v) };
[INFO] [stdout]      |                            -------------------^^^
[INFO] [stdout]      |                            |
[INFO] [stdout]      |                            help: replace this with: `f32::to_bits`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Calc<length::Length>, Infallible>
[INFO] [stdout]    --> src/values/length.rs:659:74
[INFO] [stdout]     |
[INFO] [stdout] 659 |       (Length::Calc(a), Length::Calc(b)) => return Length::Calc(Box::new(a.add(*b).unwrap())),
[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<Calc<DimensionPercentage<D>>, Infallible>
[INFO] [stdout]    --> src/values/percentage.rs:355:44
[INFO] [stdout]     |
[INFO] [stdout] 355 |         DimensionPercentage::Calc(Box::new(a.add(*b).unwrap()))
[INFO] [stdout]     |                                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lightningcss` (lib test) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6ffa4964c53baf1955ec66313668edcd4045bdc94286d49f9d5bf0030c418220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ffa4964c53baf1955ec66313668edcd4045bdc94286d49f9d5bf0030c418220", kill_on_drop: false }`
[INFO] [stdout] 6ffa4964c53baf1955ec66313668edcd4045bdc94286d49f9d5bf0030c418220
