[INFO] fetching crate taffy 0.8.1...
[INFO] checking taffy-0.8.1 against try#1d0e7c032bf9b905a3165592072b5cc63c491d50 for pr-133502-5
[INFO] extracting crate taffy 0.8.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate taffy 0.8.1 on toolchain 1d0e7c032bf9b905a3165592072b5cc63c491d50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "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-tc2/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" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab1e52f96ae46c3cf903f4d33c40ae3270bdb61083dce45b33c5bd138c0be6bd
[INFO] running `Command { std: "docker" "start" "-a" "ab1e52f96ae46c3cf903f4d33c40ae3270bdb61083dce45b33c5bd138c0be6bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab1e52f96ae46c3cf903f4d33c40ae3270bdb61083dce45b33c5bd138c0be6bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab1e52f96ae46c3cf903f4d33c40ae3270bdb61083dce45b33c5bd138c0be6bd", kill_on_drop: false }`
[INFO] [stdout] ab1e52f96ae46c3cf903f4d33c40ae3270bdb61083dce45b33c5bd138c0be6bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 188be009b4fb2b0b3b39b26f15735b67ca7ccea407de135d72fe3410f103df48
[INFO] running `Command { std: "docker" "start" "-a" "188be009b4fb2b0b3b39b26f15735b67ca7ccea407de135d72fe3410f103df48", kill_on_drop: false }`
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking grid v0.16.1
[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 24.47s
[INFO] running `Command { std: "docker" "inspect" "188be009b4fb2b0b3b39b26f15735b67ca7ccea407de135d72fe3410f103df48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188be009b4fb2b0b3b39b26f15735b67ca7ccea407de135d72fe3410f103df48", kill_on_drop: false }`
[INFO] [stdout] 188be009b4fb2b0b3b39b26f15735b67ca7ccea407de135d72fe3410f103df48