[INFO] crate yew 0.15.0 is already in cache
[INFO] checking yew-0.15.0 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate yew 0.15.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate yew 0.15.0 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate yew 0.15.0
[INFO] finished tweaking crates.io crate yew 0.15.0
[INFO] tweaked toml for crates.io crate yew 0.15.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b609c408b1c6d23005f84465e6b69012336149a0def9fca39993dde519aa7dad
[INFO] running `"docker" "start" "-a" "b609c408b1c6d23005f84465e6b69012336149a0def9fca39993dde519aa7dad"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling yew v0.15.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling yew-macro v0.15.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking trybuild v1.0.27
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking rmp-serde v0.14.3
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:90:1
[INFO] [stderr]     |
[INFO] [stderr] 90  |    #[proc_macro_hack(support_nested)]
[INFO] [stderr]     |   _^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     | ||
[INFO] [stderr] 91  | || pub use yew_macro::html;
[INFO] [stderr]     | ||_|_____________________^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     |    help: remove this `mut`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/virtual_dom/vlist.rs:208:24
[INFO] [stderr]     |
[INFO] [stderr] 208 |            let fragment = html! {
[INFO] [stderr]     |  _________________________-
[INFO] [stderr] 209 | |              <>
[INFO] [stderr] 210 | |              </>
[INFO] [stderr] 211 | |          };
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.63s
[INFO] running `"docker" "inspect" "b609c408b1c6d23005f84465e6b69012336149a0def9fca39993dde519aa7dad"`
[INFO] running `"docker" "rm" "-f" "b609c408b1c6d23005f84465e6b69012336149a0def9fca39993dde519aa7dad"`
[INFO] [stdout] b609c408b1c6d23005f84465e6b69012336149a0def9fca39993dde519aa7dad