[INFO] fetching crate unmp-link-serial 0.7.0...
[INFO] testing unmp-link-serial-0.7.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate unmp-link-serial 0.7.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate unmp-link-serial 0.7.0
[INFO] finished tweaking crates.io crate unmp-link-serial 0.7.0
[INFO] tweaked toml for crates.io crate unmp-link-serial 0.7.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unmp-link-serial 0.7.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 60 packages to latest compatible versions
[INFO] [stderr]       Adding eds v0.4.4 (available: v0.5.1)
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a652a9fb7e0f6f60c79d2d5f0d45516453b882720748920a9bf76b3367d99b52
[INFO] running `Command { std: "docker" "start" "-a" "a652a9fb7e0f6f60c79d2d5f0d45516453b882720748920a9bf76b3367d99b52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a652a9fb7e0f6f60c79d2d5f0d45516453b882720748920a9bf76b3367d99b52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a652a9fb7e0f6f60c79d2d5f0d45516453b882720748920a9bf76b3367d99b52", kill_on_drop: false }`
[INFO] [stdout] a652a9fb7e0f6f60c79d2d5f0d45516453b882720748920a9bf76b3367d99b52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a72ff676700fbd89b58c2851d15fb667d49c875f5f5a077eca5311bfebb8a981
[INFO] running `Command { std: "docker" "start" "-a" "a72ff676700fbd89b58c2851d15fb667d49c875f5f5a077eca5311bfebb8a981", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling spin_loop v0.1.1
[INFO] [stderr]    Compiling atomic v0.5.3
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling fixed-queue v0.3.11
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling unmp-id v2.0.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling futures-intrusive v0.4.2
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling ach-util v0.1.16
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling ach-ring v0.1.9
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling ach-mpmc v0.2.0
[INFO] [stderr]    Compiling eds v0.4.4
[INFO] [stderr]    Compiling unmp-link v0.7.0
[INFO] [stderr]    Compiling task-stream v0.3.7
[INFO] [stderr]    Compiling unmp v0.7.3
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/unmp-0.7.3/src/net/history.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn add(&self, packet: &Packet) -> bool {
[INFO] [stdout]    |                                           ---- expected `bool` because of return type
[INFO] [stdout] 39 |         let new_log = Log::new(packet);
[INFO] [stdout] 40 |         self.inner.insert(new_log)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `()`
[INFO] [stdout]    |
[INFO] [stdout] note: method `insert` modifies its receiver in-place
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/unmp-0.7.3/src/net/history.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |         self.inner.insert(new_log)
[INFO] [stdout]    |                    ^^^^^^ this call modifies its receiver in-place
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unmp` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a72ff676700fbd89b58c2851d15fb667d49c875f5f5a077eca5311bfebb8a981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a72ff676700fbd89b58c2851d15fb667d49c875f5f5a077eca5311bfebb8a981", kill_on_drop: false }`
[INFO] [stdout] a72ff676700fbd89b58c2851d15fb667d49c875f5f5a077eca5311bfebb8a981