[INFO] crate pumpkindb_mio_server 0.2.0 is already in cache
[INFO] checking pumpkindb_mio_server-0.2.0 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] extracting crate pumpkindb_mio_server 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pumpkindb_mio_server 0.2.0 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pumpkindb_mio_server 0.2.0
[INFO] finished tweaking crates.io crate pumpkindb_mio_server 0.2.0
[INFO] tweaked toml for crates.io crate pumpkindb_mio_server 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 59338c0822f3a42a722b5c9ad63409925e983b0b4c2822cf3b47178bd1137a50
[INFO] running `"docker" "start" "-a" "59338c0822f3a42a722b5c9ad63409925e983b0b4c2822cf3b47178bd1137a50"`
[INFO] [stderr]     Checking config v0.3.1
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking suppositions v0.1.4
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]     Checking serde_cbor v0.6.1
[INFO] [stderr]     Checking ordered-float v0.4.0
[INFO] [stderr]     Checking pumpkinscript v0.2.0
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr] error[E0282]: type annotations needed for `std::option::Option<_>`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/config-0.3.1/src/env.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let prefix_pat = if let Some(ref prefix) = self.prefix {
[INFO] [stderr]    |             ---------- consider giving `prefix_pat` the explicit type `std::option::Option<_>`, where the type parameter `T` is specified
[INFO] [stderr] ...
[INFO] [stderr] 45 |             if let Some(ref prefix_pat) = prefix_pat {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^ cannot infer type for `T`
[INFO] [stderr]    |
[INFO] [stderr]    = note: type must be known at this point
[INFO] [stderr] 
[INFO] [stderr]     Checking serde-value v0.4.1
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0282`.
[INFO] [stderr] error: could not compile `config`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "59338c0822f3a42a722b5c9ad63409925e983b0b4c2822cf3b47178bd1137a50"`
[INFO] running `"docker" "rm" "-f" "59338c0822f3a42a722b5c9ad63409925e983b0b4c2822cf3b47178bd1137a50"`
[INFO] [stdout] 59338c0822f3a42a722b5c9ad63409925e983b0b4c2822cf3b47178bd1137a50