[INFO] fetching crate holt-regression 0.2.1...
[INFO] checking holt-regression-0.2.1 against try#50f413885985a8b0a0b6ca0766a0aedd45304953 for pr-155657
[INFO] extracting crate holt-regression 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate holt-regression 0.2.1
[INFO] finished tweaking crates.io crate holt-regression 0.2.1
[INFO] tweaked toml for crates.io crate holt-regression 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate holt-regression 0.2.1 on toolchain 50f413885985a8b0a0b6ca0766a0aedd45304953
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate holt-regression 0.2.1 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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6e27604ac7f4f0fdc28252d3f9b6ade27236a02d609003d0fc027c654cbdae7
[INFO] running `Command { std: "docker" "start" "-a" "a6e27604ac7f4f0fdc28252d3f9b6ade27236a02d609003d0fc027c654cbdae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6e27604ac7f4f0fdc28252d3f9b6ade27236a02d609003d0fc027c654cbdae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e27604ac7f4f0fdc28252d3f9b6ade27236a02d609003d0fc027c654cbdae7", kill_on_drop: false }`
[INFO] [stdout] a6e27604ac7f4f0fdc28252d3f9b6ade27236a02d609003d0fc027c654cbdae7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68dc8ccddc83b5e75eab471943b92408d187d6a625838986d783679fffb33114
[INFO] running `Command { std: "docker" "start" "-a" "68dc8ccddc83b5e75eab471943b92408d187d6a625838986d783679fffb33114", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
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[INFO] [stderr]     Checking thirtyfour v0.36.1
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `()` is non-empty
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/thirtyfour-0.36.1/src/support.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |                 match std::future::pending::<Infallible>().await {}
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the matched value is of type `()`
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]    |
[INFO] [stdout] 41 ~                 match std::future::pending::<Infallible>().await {
[INFO] [stdout] 42 +                     _ => todo!(),
[INFO] [stdout] 43 ~                 }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `thirtyfour` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "68dc8ccddc83b5e75eab471943b92408d187d6a625838986d783679fffb33114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68dc8ccddc83b5e75eab471943b92408d187d6a625838986d783679fffb33114", kill_on_drop: false }`
[INFO] [stdout] 68dc8ccddc83b5e75eab471943b92408d187d6a625838986d783679fffb33114
