[INFO] cloning repository https://github.com/helloimalemur/SendMTP
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/helloimalemur/SendMTP" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhelloimalemur%2FSendMTP", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhelloimalemur%2FSendMTP'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3907cbca5862fc634b34e9701ab4975561f4945
[INFO] testing helloimalemur/SendMTP against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhelloimalemur%2FSendMTP" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/helloimalemur/SendMTP
[INFO] finished tweaking git repo https://github.com/helloimalemur/SendMTP
[INFO] tweaked toml for git repo https://github.com/helloimalemur/SendMTP written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/helloimalemur/SendMTP on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/helloimalemur/SendMTP 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colorchoice v1.0.2
[INFO] [stderr]   Downloaded anstyle v1.0.8
[INFO] [stderr]   Downloaded mio v1.0.1
[INFO] [stderr]   Downloaded anstyle-parse v0.2.5
[INFO] [stderr]   Downloaded clap_derive v4.5.13
[INFO] [stderr]   Downloaded security-framework-sys v2.11.1
[INFO] [stderr]   Downloaded anstyle-query v1.1.1
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.4
[INFO] [stderr]   Downloaded tempfile v3.12.0
[INFO] [stderr]   Downloaded chumsky v0.9.3
[INFO] [stderr]   Downloaded openssl-sys v0.9.103
[INFO] [stderr]   Downloaded cc v1.1.7
[INFO] [stderr]   Downloaded clap_builder v4.5.13
[INFO] [stderr]   Downloaded lettre v0.11.7
[INFO] [stderr]   Downloaded clap v4.5.13
[INFO] [stderr]   Downloaded psm v0.1.21
[INFO] [stderr]   Downloaded stacker v0.1.15
[INFO] [stderr]   Downloaded email_address v0.2.9
[INFO] [stderr]   Downloaded object v0.36.2
[INFO] [stderr]   Downloaded syn v2.0.72
[INFO] [stderr]   Downloaded openssl v0.10.66
[INFO] [stderr]   Downloaded quoted_printable v0.5.1
[INFO] [stderr]   Downloaded anstream v0.6.15
[INFO] [stderr]   Downloaded clap_lex v0.7.2
[INFO] [stderr]   Downloaded email-encoding v0.3.0
[INFO] [stderr]   Downloaded tokio v1.39.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b901d7187c2e9e655b938cba2f3e7667db46e896f9e89a8e4a5828b5801ef96
[INFO] running `Command { std: "docker" "start" "-a" "7b901d7187c2e9e655b938cba2f3e7667db46e896f9e89a8e4a5828b5801ef96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b901d7187c2e9e655b938cba2f3e7667db46e896f9e89a8e4a5828b5801ef96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b901d7187c2e9e655b938cba2f3e7667db46e896f9e89a8e4a5828b5801ef96", kill_on_drop: false }`
[INFO] [stdout] 7b901d7187c2e9e655b938cba2f3e7667db46e896f9e89a8e4a5828b5801ef96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3c89d2f6d4780c7053157515e6cc442b74f36f2e10ed9ef849ef5942484b90b
[INFO] running `Command { std: "docker" "start" "-a" "e3c89d2f6d4780c7053157515e6cc442b74f36f2e10ed9ef849ef5942484b90b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling anstyle-query v1.1.1
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling tinyvec v1.8.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.5
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling colorchoice v1.0.2
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling anstream v0.6.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling quoted_printable v0.5.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling clap_builder v4.5.13
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling email_address v0.2.9
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling email-encoding v0.3.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling hostname v0.4.0
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling chumsky v0.9.3
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling clap_derive v4.5.13
[INFO] [stderr]    Compiling clap v4.5.13
[INFO] [stderr]    Compiling lettre v0.11.7
[INFO] [stderr]    Compiling SendMTP v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `email_attachment`
[INFO] [stdout]  --> src/email.rs:7:151
[INFO] [stdout]   |
[INFO] [stdout] 7 | ...assword: String, email_attachment: Option<String>) {
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_email_attachment`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.44s
[INFO] running `Command { std: "docker" "inspect" "e3c89d2f6d4780c7053157515e6cc442b74f36f2e10ed9ef849ef5942484b90b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c89d2f6d4780c7053157515e6cc442b74f36f2e10ed9ef849ef5942484b90b", kill_on_drop: false }`
[INFO] [stdout] e3c89d2f6d4780c7053157515e6cc442b74f36f2e10ed9ef849ef5942484b90b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 679d51f82695520e74e60b2c02e3e80fdaf7649366aa53b8b2146c162375651f
[INFO] running `Command { std: "docker" "start" "-a" "679d51f82695520e74e60b2c02e3e80fdaf7649366aa53b8b2146c162375651f", kill_on_drop: false }`
[INFO] [stderr]    Compiling SendMTP v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `email_attachment`
[INFO] [stdout]  --> src/email.rs:7:151
[INFO] [stdout]   |
[INFO] [stdout] 7 | ...assword: String, email_attachment: Option<String>) {
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_email_attachment`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "679d51f82695520e74e60b2c02e3e80fdaf7649366aa53b8b2146c162375651f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "679d51f82695520e74e60b2c02e3e80fdaf7649366aa53b8b2146c162375651f", kill_on_drop: false }`
[INFO] [stdout] 679d51f82695520e74e60b2c02e3e80fdaf7649366aa53b8b2146c162375651f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9012de439505fbb74b08d59fbf751e697ea8e0921c64139012a87456c522abc
[INFO] running `Command { std: "docker" "start" "-a" "e9012de439505fbb74b08d59fbf751e697ea8e0921c64139012a87456c522abc", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `email_attachment`
[INFO] [stderr]  --> src/email.rs:7:151
[INFO] [stderr]   |
[INFO] [stderr] 7 | ...assword: String, email_attachment: Option<String>) {
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_email_attachment`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `SendMTP` (bin "SendMTP" test) generated 1 warning (run `cargo fix --bin "SendMTP" -p SendMTP --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/SendMTP-17bc7722a9a98323)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e9012de439505fbb74b08d59fbf751e697ea8e0921c64139012a87456c522abc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9012de439505fbb74b08d59fbf751e697ea8e0921c64139012a87456c522abc", kill_on_drop: false }`
[INFO] [stdout] e9012de439505fbb74b08d59fbf751e697ea8e0921c64139012a87456c522abc