[INFO] fetching crate taffy 0.8.1...
[INFO] checking taffy-0.8.1 against master#8f43b85954d2f3d8fc00a7504c603e5ca9eb0695 for pr-133502-5
[INFO] extracting crate taffy 0.8.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate taffy 0.8.1 on toolchain 8f43b85954d2f3d8fc00a7504c603e5ca9eb0695
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate taffy 0.8.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate taffy 0.8.1
[INFO] tweaked toml for crates.io crate taffy 0.8.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate taffy 0.8.1 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" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded document-features v0.2.11
[INFO] [stderr]   Downloaded grid v0.16.1
[INFO] [stderr]   Downloaded quote v1.0.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 889594c0c1fa676dac650e2d9efe526ff8111a8b5af917b04e49ecf55478f747
[INFO] running `Command { std: "docker" "start" "-a" "889594c0c1fa676dac650e2d9efe526ff8111a8b5af917b04e49ecf55478f747", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "889594c0c1fa676dac650e2d9efe526ff8111a8b5af917b04e49ecf55478f747", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889594c0c1fa676dac650e2d9efe526ff8111a8b5af917b04e49ecf55478f747", kill_on_drop: false }`
[INFO] [stdout] 889594c0c1fa676dac650e2d9efe526ff8111a8b5af917b04e49ecf55478f747
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cb81d69c62236cb01525ee934fea3d596b07890db2bf5268785a2f638dc9822
[INFO] running `Command { std: "docker" "start" "-a" "0cb81d69c62236cb01525ee934fea3d596b07890db2bf5268785a2f638dc9822", kill_on_drop: false }`
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking grid v0.16.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking taffy v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/style/compact_length.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 |         unsafe { core::mem::transmute(val) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `f32::to_bits(val)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/style/compact_length.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |         unsafe { core::mem::transmute(v) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `f32::from_bits(v)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/style/compact_length.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 |         unsafe { core::mem::transmute(val) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `f32::to_bits(val)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/style/compact_length.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |         unsafe { core::mem::transmute(v) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `f32::from_bits(v)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.74s
[INFO] running `Command { std: "docker" "inspect" "0cb81d69c62236cb01525ee934fea3d596b07890db2bf5268785a2f638dc9822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cb81d69c62236cb01525ee934fea3d596b07890db2bf5268785a2f638dc9822", kill_on_drop: false }`
[INFO] [stdout] 0cb81d69c62236cb01525ee934fea3d596b07890db2bf5268785a2f638dc9822