[INFO] fetching crate smtp_recv 0.1.63...
[INFO] checking smtp_recv-0.1.63 against try#81ab7f2139295590561adbe6d5b0aaa2feff765f for pr-146470-4
[INFO] extracting crate smtp_recv 0.1.63 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate smtp_recv 0.1.63
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate smtp_recv 0.1.63
[INFO] tweaked toml for crates.io crate smtp_recv 0.1.63 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smtp_recv 0.1.63 on toolchain 81ab7f2139295590561adbe6d5b0aaa2feff765f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate smtp_recv 0.1.63 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" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e747d195bcb29469241733c49591eacd2f8b09bb29175f389b35549be1b04a91
[INFO] running `Command { std: "docker" "start" "-a" "e747d195bcb29469241733c49591eacd2f8b09bb29175f389b35549be1b04a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e747d195bcb29469241733c49591eacd2f8b09bb29175f389b35549be1b04a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e747d195bcb29469241733c49591eacd2f8b09bb29175f389b35549be1b04a91", kill_on_drop: false }`
[INFO] [stdout] e747d195bcb29469241733c49591eacd2f8b09bb29175f389b35549be1b04a91
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 948071f2343dcb88b1ad1a27f631b58cc590e6ee815c5f856652dfff1c71be02
[INFO] running `Command { std: "docker" "start" "-a" "948071f2343dcb88b1ad1a27f631b58cc590e6ee815c5f856652dfff1c71be02", kill_on_drop: false }`
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[INFO] [stderr]     Checking lettre v0.11.19
[INFO] [stderr]     Checking smtp_recv v0.1.63 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0446]: crate-private trait `SpawnHandle` in public interface
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lettre-0.11.19/src/executor.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     type Handle: SpawnHandle;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ can't leak crate-private trait
[INFO] [stdout] ...
[INFO] [stdout] 86 | pub(crate) trait SpawnHandle: Debug + Send + Sync + 'static + private::Sealed {
[INFO] [stdout]    | ----------------------------------------------------------------------------- `SpawnHandle` declared as crate-private
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0446`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lettre` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "948071f2343dcb88b1ad1a27f631b58cc590e6ee815c5f856652dfff1c71be02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948071f2343dcb88b1ad1a27f631b58cc590e6ee815c5f856652dfff1c71be02", kill_on_drop: false }`
[INFO] [stdout] 948071f2343dcb88b1ad1a27f631b58cc590e6ee815c5f856652dfff1c71be02