[INFO] fetching crate piet-web 0.6.2...
[INFO] checking piet-web-0.6.2 against master#5b270e1198e911247244b035a6f06ce3af0a4420 for pr-126571-1
[INFO] extracting crate piet-web 0.6.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate piet-web 0.6.2 on toolchain 5b270e1198e911247244b035a6f06ce3af0a4420
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piet-web 0.6.2
[INFO] finished tweaking crates.io crate piet-web 0.6.2
[INFO] tweaked toml for crates.io crate piet-web 0.6.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding kurbo v0.9.5 (latest: v0.11.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xi-unicode v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.92
[INFO] [stderr]   Downloaded bumpalo v3.16.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.92
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.42
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.42
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.42
[INFO] [stderr]   Downloaded js-sys v0.3.69
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.92
[INFO] [stderr]   Downloaded web-sys v0.3.69
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.92
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b59bc915a754d749c7f43d510465d0e69f20f0abb5e0f38de0d94c3b6f16422d
[INFO] running `Command { std: "docker" "start" "-a" "b59bc915a754d749c7f43d510465d0e69f20f0abb5e0f38de0d94c3b6f16422d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b59bc915a754d749c7f43d510465d0e69f20f0abb5e0f38de0d94c3b6f16422d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b59bc915a754d749c7f43d510465d0e69f20f0abb5e0f38de0d94c3b6f16422d", kill_on_drop: false }`
[INFO] [stdout] b59bc915a754d749c7f43d510465d0e69f20f0abb5e0f38de0d94c3b6f16422d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb2319caca0022783c6d7f71b7d8f37b0ba03c845e6a0e5f8752ec225cf2d18c
[INFO] running `Command { std: "docker" "start" "-a" "cb2319caca0022783c6d7f71b7d8f37b0ba03c845e6a0e5f8752ec225cf2d18c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking unic-ucd-bidi v0.9.0
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking kurbo v0.9.5
[INFO] [stderr]     Checking unic-bidi v0.9.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]     Checking piet v0.6.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.42
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.42
[INFO] [stderr]     Checking web-sys v0.3.69
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.42
[INFO] [stderr]     Checking piet-web v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:517:13
[INFO] [stdout]     |
[INFO] [stdout] 517 |         let mut canvas_state = self.canvas_states.last_mut().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:517:13
[INFO] [stdout]     |
[INFO] [stdout] 517 |         let mut canvas_state = self.canvas_states.last_mut().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.12s
[INFO] running `Command { std: "docker" "inspect" "cb2319caca0022783c6d7f71b7d8f37b0ba03c845e6a0e5f8752ec225cf2d18c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb2319caca0022783c6d7f71b7d8f37b0ba03c845e6a0e5f8752ec225cf2d18c", kill_on_drop: false }`
[INFO] [stdout] cb2319caca0022783c6d7f71b7d8f37b0ba03c845e6a0e5f8752ec225cf2d18c