[INFO] fetching crate piet-web 0.2.0-pre6...
[INFO] checking piet-web-0.2.0-pre6 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate piet-web 0.2.0-pre6 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate piet-web 0.2.0-pre6 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piet-web 0.2.0-pre6
[INFO] finished tweaking crates.io crate piet-web 0.2.0-pre6
[INFO] tweaked toml for crates.io crate piet-web 0.2.0-pre6 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7603d0d4ab25accecd02fb7cbb608cb81461f8e3b13d92dcab8ab0a554feb7e1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7603d0d4ab25accecd02fb7cbb608cb81461f8e3b13d92dcab8ab0a554feb7e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7603d0d4ab25accecd02fb7cbb608cb81461f8e3b13d92dcab8ab0a554feb7e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7603d0d4ab25accecd02fb7cbb608cb81461f8e3b13d92dcab8ab0a554feb7e1", kill_on_drop: false }`
[INFO] [stdout] 7603d0d4ab25accecd02fb7cbb608cb81461f8e3b13d92dcab8ab0a554feb7e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ddc7724a89c0a41cf7b8f8c6c1ce0d752df2f6d55c630adcae3a780ea7d8bd5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5ddc7724a89c0a41cf7b8f8c6c1ce0d752df2f6d55c630adcae3a780ea7d8bd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen v0.2.68
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.18
[INFO] [stderr]     Checking kurbo v0.7.0
[INFO] [stderr]     Checking piet v0.2.0-pre6
[INFO] [stderr]     Checking js-sys v0.3.45
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.18
[INFO] [stderr]     Checking web-sys v0.3.45
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.18
[INFO] [stderr]     Checking piet-web v0.2.0-pre6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.02s
[INFO] running `Command { std: "docker" "inspect" "5ddc7724a89c0a41cf7b8f8c6c1ce0d752df2f6d55c630adcae3a780ea7d8bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ddc7724a89c0a41cf7b8f8c6c1ce0d752df2f6d55c630adcae3a780ea7d8bd5", kill_on_drop: false }`
[INFO] [stdout] 5ddc7724a89c0a41cf7b8f8c6c1ce0d752df2f6d55c630adcae3a780ea7d8bd5