[INFO] fetching crate webscale_plugin 0.1.0...
[INFO] checking webscale_plugin-0.1.0 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate webscale_plugin 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate webscale_plugin 0.1.0 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webscale_plugin 0.1.0
[INFO] finished tweaking crates.io crate webscale_plugin 0.1.0
[INFO] tweaked toml for crates.io crate webscale_plugin 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 617fe9babb00e5cd0fd7d653b9ed533cf32dca4be154aa37c3baab07666fbf15
[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" "617fe9babb00e5cd0fd7d653b9ed533cf32dca4be154aa37c3baab07666fbf15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "617fe9babb00e5cd0fd7d653b9ed533cf32dca4be154aa37c3baab07666fbf15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "617fe9babb00e5cd0fd7d653b9ed533cf32dca4be154aa37c3baab07666fbf15", kill_on_drop: false }`
[INFO] [stdout] 617fe9babb00e5cd0fd7d653b9ed533cf32dca4be154aa37c3baab07666fbf15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b2883c5ff227333b065191b63782edcc328d16f3111d003f34346d9790636f4
[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" "3b2883c5ff227333b065191b63782edcc328d16f3111d003f34346d9790636f4", kill_on_drop: false }`
[INFO] [stderr]     Checking webscale_plugin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn on_connect(&self, &Link);
[INFO] [stdout]    |                           ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:31:30
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn on_disconnect(&self, &Link);
[INFO] [stdout]    |                              ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:32:27
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn on_message(&self, &Link, &str, &str);
[INFO] [stdout]    |                           ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn on_action(&self, &Link, &str, &str);
[INFO] [stdout]    |                          ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn on_join(&self, &Link, &str);
[INFO] [stdout]    |                        ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn on_leave(&self, &Link, &str);
[INFO] [stdout]    |                         ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn on_connect(&self, &Link);
[INFO] [stdout]    |                           ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:31:30
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn on_disconnect(&self, &Link);
[INFO] [stdout]    |                              ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:32:27
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn on_message(&self, &Link, &str, &str);
[INFO] [stdout]    |                           ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn on_action(&self, &Link, &str, &str);
[INFO] [stdout]    |                          ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn on_join(&self, &Link, &str);
[INFO] [stdout]    |                        ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn on_leave(&self, &Link, &str);
[INFO] [stdout]    |                         ^^^^ help: use `dyn`: `dyn Link`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "3b2883c5ff227333b065191b63782edcc328d16f3111d003f34346d9790636f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b2883c5ff227333b065191b63782edcc328d16f3111d003f34346d9790636f4", kill_on_drop: false }`
[INFO] [stdout] 3b2883c5ff227333b065191b63782edcc328d16f3111d003f34346d9790636f4