[INFO] fetching crate nebula_email 0.0.1...
[INFO] testing nebula_email-0.0.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate nebula_email 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate nebula_email 0.0.1
[INFO] finished tweaking crates.io crate nebula_email 0.0.1
[INFO] tweaked toml for crates.io crate nebula_email 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nebula_email 0.0.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 162 packages to latest compatible versions
[INFO] [stderr]       Adding lettre v0.9.6 (available: v0.11.19)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.48.0)
[INFO] [stderr]       Adding toml v0.5.11 (available: v0.9.8)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded tera v1.20.1
[INFO] [stderr]   Downloaded winutil v0.1.1
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[INFO] [stderr]   Downloaded lettre v0.9.6
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[INFO] [stderr]   Downloaded email v0.0.20
[INFO] [stderr]   Downloaded ascii_utils v0.9.3
[INFO] [stderr]   Downloaded rand_os v0.1.3
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[INFO] [stderr]   Downloaded lettre_email v0.9.4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 902cac18dced9934067065e9b8e0f1f062a28de3db593df70bf147e3577f76d9
[INFO] running `Command { std: "docker" "start" "-a" "902cac18dced9934067065e9b8e0f1f062a28de3db593df70bf147e3577f76d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "902cac18dced9934067065e9b8e0f1f062a28de3db593df70bf147e3577f76d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "902cac18dced9934067065e9b8e0f1f062a28de3db593df70bf147e3577f76d9", kill_on_drop: false }`
[INFO] [stdout] 902cac18dced9934067065e9b8e0f1f062a28de3db593df70bf147e3577f76d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1249e6bb004d31dcce5d3092c7e05e213b09f3c55858991d181517571e56046e
[INFO] running `Command { std: "docker" "start" "-a" "1249e6bb004d31dcce5d3092c7e05e213b09f3c55858991d181517571e56046e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling fast_chemail v0.9.6
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling pest_meta v2.8.3
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[INFO] [stderr]    Compiling time v0.1.45
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[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling slug v0.1.6
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
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[INFO] [stderr]    Compiling openssl-sys v0.9.110
[INFO] [stderr]    Compiling humansize v2.1.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling pest_derive v2.8.3
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling globset v0.4.18
[INFO] [stderr]    Compiling ignore v0.4.25
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.1
[INFO] [stderr]    Compiling chrono-tz-build v0.3.0
[INFO] [stderr]    Compiling globwalk v0.9.1
[INFO] [stderr]    Compiling chrono-tz v0.9.0
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling lettre v0.9.6
[INFO] [stderr]    Compiling lettre_email v0.9.4
[INFO] [stderr]    Compiling tera v1.20.1
[INFO] [stderr]    Compiling nebula_email v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/config.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]  --> src/config.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tera::{Context, Tera};
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::SendmailResult`
[INFO] [stdout]  --> src/sender.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use lettre::sendmail::{error::SendmailResult, SendmailTransport};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::SmtpResult`
[INFO] [stdout]  --> src/sender.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use lettre::smtp::{error::SmtpResult, SmtpTransport};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Deserialize`
[INFO] [stdout]  --> src/sender.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): AsRef<str>` is not satisfied
[INFO] [stdout]    --> src/config.rs:374:32
[INFO] [stdout]     |
[INFO] [stdout] 374 |         if let Err(err) = tera.add_raw_templates(vec![
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^ the trait `AsRef<str>` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Tera::add_raw_templates`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tera-1.20.1/src/tera.rs:546:12
[INFO] [stdout]     |
[INFO] [stdout] 542 |     pub fn add_raw_templates<I, N, C>(&mut self, templates: I) -> Result<()>
[INFO] [stdout]     |            ----------------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 546 |         C: AsRef<str>,
[INFO] [stdout]     |            ^^^^^^^^^^ required by this bound in `Tera::add_raw_templates`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smtp`
[INFO] [stdout]   --> src/sender.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 |             Sender::SMTP(smtp) => {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_smtp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send`
[INFO] [stdout]   --> src/sender.rs:20:30
[INFO] [stdout]    |
[INFO] [stdout] 20 |             Sender::Sendmail(send) => {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `email`
[INFO] [stdout]   --> src/sender.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn send(&mut self, email: SendableEmail) -> Self::Result {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_email`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nebula_email` (lib) due to 1 previous error; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1249e6bb004d31dcce5d3092c7e05e213b09f3c55858991d181517571e56046e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1249e6bb004d31dcce5d3092c7e05e213b09f3c55858991d181517571e56046e", kill_on_drop: false }`
[INFO] [stdout] 1249e6bb004d31dcce5d3092c7e05e213b09f3c55858991d181517571e56046e