[INFO] fetching crate dcp-rs 0.0.1...
[INFO] checking dcp-rs-0.0.1 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate dcp-rs 0.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate dcp-rs 0.0.1 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate dcp-rs 0.0.1
[INFO] finished tweaking crates.io crate dcp-rs 0.0.1
[INFO] tweaked toml for crates.io crate dcp-rs 0.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate dcp-rs 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50c8ebaa2123f1ff126cb0ab84fda7a378fcd076662c8aedf7f752c393a22028
[INFO] running `Command { std: "docker" "start" "-a" "50c8ebaa2123f1ff126cb0ab84fda7a378fcd076662c8aedf7f752c393a22028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50c8ebaa2123f1ff126cb0ab84fda7a378fcd076662c8aedf7f752c393a22028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50c8ebaa2123f1ff126cb0ab84fda7a378fcd076662c8aedf7f752c393a22028", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cee2f6cf99b47c84d58933d5f57db57ec0ddaab16727b5e3ee3d4d919de4edb6
[INFO] running `Command { std: "docker" "start" "-a" "cee2f6cf99b47c84d58933d5f57db57ec0ddaab16727b5e3ee3d4d919de4edb6", kill_on_drop: false }`
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[INFO] [stderr]     Checking dcp-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.10.2
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[INFO] [stdout] warning: unused import: `ListenerCallback`
[INFO] [stdout]  --> examples/dcp.rs:1:51
[INFO] [stdout]   |
[INFO] [stdout] 1 | use dcp_rs::{Config, Dcp, DcpConfig, GroupConfig, ListenerCallback};
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/dcp.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     dcp.add_listener(listener);
[INFO] [stdout]    |                      ^^^^^^^^ one type is more general than the other
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `for<'a> fn(&'a dcp_rs::dcp_io::packet::Packet) -> Result<_, _>`
[INFO] [stdout]               found fn pointer `fn(&dcp_rs::dcp_io::packet::Packet) -> Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dcp-rs` (example "dcp") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cee2f6cf99b47c84d58933d5f57db57ec0ddaab16727b5e3ee3d4d919de4edb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cee2f6cf99b47c84d58933d5f57db57ec0ddaab16727b5e3ee3d4d919de4edb6", kill_on_drop: false }`
[INFO] [stdout] cee2f6cf99b47c84d58933d5f57db57ec0ddaab16727b5e3ee3d4d919de4edb6
