[INFO] fetching crate blackboard 1.1.0...
[INFO] checking blackboard-1.1.0 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate blackboard 1.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate blackboard 1.1.0 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackboard 1.1.0
[INFO] finished tweaking crates.io crate blackboard 1.1.0
[INFO] tweaked toml for crates.io crate blackboard 1.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate blackboard 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c0cc8a9e5485060e01d05bb86b1e0a7496439e9c63ca71d9f46fb1a4e0cddcd
[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" "3c0cc8a9e5485060e01d05bb86b1e0a7496439e9c63ca71d9f46fb1a4e0cddcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c0cc8a9e5485060e01d05bb86b1e0a7496439e9c63ca71d9f46fb1a4e0cddcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0cc8a9e5485060e01d05bb86b1e0a7496439e9c63ca71d9f46fb1a4e0cddcd", kill_on_drop: false }`
[INFO] [stdout] 3c0cc8a9e5485060e01d05bb86b1e0a7496439e9c63ca71d9f46fb1a4e0cddcd
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2436425f592792d5842d1d4784dbd00aac4d998b0a5dc350d763c4b8a6d92a0f
[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" "2436425f592792d5842d1d4784dbd00aac4d998b0a5dc350d763c4b8a6d92a0f", kill_on_drop: false }`
[INFO] [stderr]     Checking blackboard v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0631]: type mismatch in function arguments
[INFO] [stdout]    --> src/lib.rs:159:30
[INFO] [stdout]     |
[INFO] [stdout] 155 |         fn change(_: &&str) {
[INFO] [stdout]     |         ------------------- found signature of `for<'r, 's> fn(&'r &'s str) -> _`
[INFO] [stdout] ...
[INFO] [stdout] 159 |         bb.subscribe("Park", change);
[INFO] [stdout]     |                              ^^^^^^ expected signature of `for<'r> fn(&'r mut &str) -> _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `Subscriptor<&str>` for `for<'r, 's> fn(&'r &'s str) {change}`
[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 E0631`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blackboard`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2436425f592792d5842d1d4784dbd00aac4d998b0a5dc350d763c4b8a6d92a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2436425f592792d5842d1d4784dbd00aac4d998b0a5dc350d763c4b8a6d92a0f", kill_on_drop: false }`
[INFO] [stdout] 2436425f592792d5842d1d4784dbd00aac4d998b0a5dc350d763c4b8a6d92a0f