[INFO] fetching crate yew-stdweb 0.17.2...
[INFO] checking yew-stdweb-0.17.2 against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] extracting crate yew-stdweb 0.17.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yew-stdweb 0.17.2 on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yew-stdweb 0.17.2
[INFO] finished tweaking crates.io crate yew-stdweb 0.17.2
[INFO] tweaked toml for crates.io crate yew-stdweb 0.17.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36df3b18abc38d9593a7d952add309763f9d114f5e13a2255533d09972495cc8
[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" "36df3b18abc38d9593a7d952add309763f9d114f5e13a2255533d09972495cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36df3b18abc38d9593a7d952add309763f9d114f5e13a2255533d09972495cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36df3b18abc38d9593a7d952add309763f9d114f5e13a2255533d09972495cc8", kill_on_drop: false }`
[INFO] [stdout] 36df3b18abc38d9593a7d952add309763f9d114f5e13a2255533d09972495cc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 849ee083f3c304809f2522932bf56df7b9c54c4b69c2cc3a749216a8e8f3f778
[INFO] running `Command { std: "docker" "start" "-a" "849ee083f3c304809f2522932bf56df7b9c54c4b69c2cc3a749216a8e8f3f778", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]     Checking fixedbitset v0.3.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling yew-macro v0.17.0
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]     Checking trybuild v1.0.32
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]     Checking stdweb v0.4.20
[INFO] [stderr]     Checking yew-stdweb v0.17.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/callback.rs:159:17
[INFO] [stdout]     |
[INFO] [stdout] 159 |         fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
[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 [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "849ee083f3c304809f2522932bf56df7b9c54c4b69c2cc3a749216a8e8f3f778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "849ee083f3c304809f2522932bf56df7b9c54c4b69c2cc3a749216a8e8f3f778", kill_on_drop: false }`
[INFO] [stdout] 849ee083f3c304809f2522932bf56df7b9c54c4b69c2cc3a749216a8e8f3f778