[INFO] cloning repository https://github.com/rschifflin/rust-pubsub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rschifflin/rust-pubsub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frschifflin%2Frust-pubsub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frschifflin%2Frust-pubsub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b07e4f397f298b5bfc7e977b2a18db0a64d010e1
[INFO] checking rschifflin/rust-pubsub against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frschifflin%2Frust-pubsub" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rschifflin/rust-pubsub on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rschifflin/rust-pubsub
[INFO] finished tweaking git repo https://github.com/rschifflin/rust-pubsub
[INFO] tweaked toml for git repo https://github.com/rschifflin/rust-pubsub written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/rschifflin/rust-pubsub already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9687735c294f5b83093ef7893b146f3fc589e7beba88c32ca6d751ff0597e040
[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" "9687735c294f5b83093ef7893b146f3fc589e7beba88c32ca6d751ff0597e040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9687735c294f5b83093ef7893b146f3fc589e7beba88c32ca6d751ff0597e040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9687735c294f5b83093ef7893b146f3fc589e7beba88c32ca6d751ff0597e040", kill_on_drop: false }`
[INFO] [stdout] 9687735c294f5b83093ef7893b146f3fc589e7beba88c32ca6d751ff0597e040
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 8b49e2dcd9d009844f6a5a3d748aa216a89e6dde0ef03d76843dfc3d9b4822de
[INFO] running `Command { std: "docker" "start" "-a" "8b49e2dcd9d009844f6a5a3d748aa216a89e6dde0ef03d76843dfc3d9b4822de", kill_on_drop: false }`
[INFO] [stderr]     Checking pubsub v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 |   };
[INFO] [stdout]     |    ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 |   };
[INFO] [stdout]     |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:181:4
[INFO] [stdout]     |
[INFO] [stdout] 181 |   };
[INFO] [stdout]     |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: cannot add `&[Event<Channel, Payload>]` to `Vec<Event<Channel, Payload>>`
[INFO] [stdout]   --> src/lib.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |         self.event_queue = head + &*tail;
[INFO] [stdout]    |                            ---- ^ ------ &[Event<Channel, Payload>]
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            Vec<Event<Channel, Payload>>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pubsub` due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0369]: cannot add `&[Event<Channel, Payload>]` to `Vec<Event<Channel, Payload>>`
[INFO] [stdout]   --> src/lib.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |         self.event_queue = head + &*tail;
[INFO] [stdout]    |                            ---- ^ ------ &[Event<Channel, Payload>]
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            Vec<Event<Channel, Payload>>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8b49e2dcd9d009844f6a5a3d748aa216a89e6dde0ef03d76843dfc3d9b4822de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b49e2dcd9d009844f6a5a3d748aa216a89e6dde0ef03d76843dfc3d9b4822de", kill_on_drop: false }`
[INFO] [stdout] 8b49e2dcd9d009844f6a5a3d748aa216a89e6dde0ef03d76843dfc3d9b4822de