[INFO] cloning repository https://github.com/SirVer/taskpaper [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SirVer/taskpaper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirVer%2Ftaskpaper", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirVer%2Ftaskpaper'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3e11fc93216a5120d02fbfa0ca7a164feb623b83 [INFO] building SirVer/taskpaper against master#c2804e6ec2c29a5c7368600ea173b890e2655c3d for pr-97334-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirVer%2Ftaskpaper" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SirVer/taskpaper on toolchain c2804e6ec2c29a5c7368600ea173b890e2655c3d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SirVer/taskpaper [INFO] finished tweaking git repo https://github.com/SirVer/taskpaper [INFO] tweaked toml for git repo https://github.com/SirVer/taskpaper written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/SirVer/taskpaper already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rss v1.10.0 [INFO] [stderr] Downloaded copypasta v0.8.1 [INFO] [stderr] Downloaded x11-clipboard v0.6.1 [INFO] [stderr] Downloaded dtparse v1.3.0 [INFO] [stderr] Downloaded xcb v1.1.1 [INFO] [stderr] Downloaded smithay-clipboard v0.6.6 [INFO] [stderr] Downloaded soup v0.5.1 [INFO] [stderr] Downloaded xml5ever v0.17.0 [INFO] [stderr] Downloaded html2text v0.4.2 [INFO] [stderr] Downloaded derive_builder_core v0.2.0 [INFO] [stderr] Downloaded rprompt v1.0.5 [INFO] [stderr] Downloaded self_update v0.30.0 [INFO] [stderr] Downloaded derive_builder v0.5.1 [INFO] [stderr] Downloaded path-absolutize v3.0.13 [INFO] [stderr] Downloaded diligent-date-parser v0.1.3 [INFO] [stderr] Downloaded path-dedot v3.0.17 [INFO] [stderr] Downloaded atom_syndication v0.6.0 [INFO] [stderr] Downloaded atom_syndication v0.9.1 [INFO] [stderr] Downloaded osascript v0.3.0 [INFO] [stderr] Downloaded syndication v0.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1724457146bbf88fc9fc8bf5a7702b423417dc00fee07f582a5be67b0eb4c648 [INFO] running `Command { std: "docker" "start" "-a" "1724457146bbf88fc9fc8bf5a7702b423417dc00fee07f582a5be67b0eb4c648", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1724457146bbf88fc9fc8bf5a7702b423417dc00fee07f582a5be67b0eb4c648", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1724457146bbf88fc9fc8bf5a7702b423417dc00fee07f582a5be67b0eb4c648", kill_on_drop: false }` [INFO] [stdout] 1724457146bbf88fc9fc8bf5a7702b423417dc00fee07f582a5be67b0eb4c648 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f65bfcb35eae6d3dcc846a628f34bd548140ddffe7ed9662e6ba1babc36f06d3 [INFO] running `Command { std: "docker" "start" "-a" "f65bfcb35eae6d3dcc846a628f34bd548140ddffe7ed9662e6ba1babc36f06d3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Compiling once_cell v1.14.0 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling itoa v1.0.3 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling siphasher v0.3.10 [INFO] [stderr] Compiling futures-core v0.3.24 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling futures-task v0.3.24 [INFO] [stderr] Compiling futures-channel v0.3.24 [INFO] [stderr] Compiling futures-sink v0.3.24 [INFO] [stderr] Compiling encoding_rs v0.8.31 [INFO] [stderr] Compiling bytes v1.2.1 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling mac v0.1.1 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling futures-util v0.3.24 [INFO] [stderr] Compiling untrusted v0.7.1 [INFO] [stderr] Compiling ryu v1.0.11 [INFO] [stderr] Compiling serde_json v1.0.85 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling utf-8 v0.7.6 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling regex-syntax v0.6.27 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling futures-io v0.3.24 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling smallvec v1.9.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling iana-time-zone v0.1.47 [INFO] [stderr] Compiling rustls v0.20.6 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling gimli v0.26.2 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling unicode-xid v0.2.3 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling derive_builder v0.9.0 [INFO] [stderr] Compiling try-lock v0.2.3 [INFO] [stderr] Compiling rustc-demangle v0.1.21 [INFO] [stderr] Compiling httpdate v1.0.2 [INFO] [stderr] Compiling tower-service v0.3.2 [INFO] [stderr] Compiling remove_dir_all v0.5.3 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling derive_builder v0.5.1 [INFO] [stderr] Compiling unicode-bidi v0.3.8 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling rust_decimal v1.26.1 [INFO] [stderr] Compiling base64 v0.13.0 [INFO] [stderr] Compiling semver v1.0.13 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling anyhow v1.0.63 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling self_update v0.30.0 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling fastrand v1.8.0 [INFO] [stderr] Compiling ipnet v2.5.0 [INFO] [stderr] Compiling arrayvec v0.7.2 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling smawk v0.3.1 [INFO] [stderr] Compiling sha1_smol v1.0.0 [INFO] [stderr] Compiling either v1.8.0 [INFO] [stderr] Compiling rprompt v1.0.5 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling tracing-core v0.1.29 [INFO] [stderr] Compiling path-dedot v3.0.17 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling phf_shared v0.10.0 [INFO] [stderr] Compiling futf v0.1.5 [INFO] [stderr] Compiling http v0.2.8 [INFO] [stderr] Compiling miniz_oxide v0.5.4 [INFO] [stderr] Compiling tinyvec v1.6.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stderr] Compiling tokio v1.21.0 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling lock_api v0.4.8 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling rustls-pemfile v1.0.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling form_urlencoded v1.0.1 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling backtrace v0.3.66 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling path-absolutize v3.0.13 [INFO] [stderr] Compiling phf v0.7.24 [INFO] [stderr] Compiling phf v0.10.1 [INFO] [stderr] Compiling tendril v0.4.3 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling tracing v0.1.36 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling http-body v0.4.5 [INFO] [stderr] Compiling want v0.3.0 [INFO] [stderr] Compiling unicode-normalization v0.1.21 [INFO] [stderr] Compiling addr2line v0.17.0 [INFO] [stderr] Compiling flate2 v1.0.24 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling aho-corasick v0.7.19 [INFO] [stderr] Compiling object v0.29.0 [INFO] [stderr] Compiling quick-xml v0.22.0 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling getrandom v0.2.7 [INFO] [stderr] Compiling socket2 v0.4.7 [INFO] [stderr] Compiling mio v0.8.4 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling xattr v0.2.3 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling dirs-sys v0.3.7 [INFO] [stderr] Compiling filetime v0.2.17 [INFO] [stderr] Compiling tempfile v3.3.0 [INFO] [stderr] Compiling derive_builder_core v0.2.0 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling quick-xml v0.20.0 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling regex v1.6.0 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling console v0.15.1 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling dirs v4.0.0 [INFO] [stderr] Compiling tempdir v0.3.7 [INFO] [stderr] Compiling tar v0.4.38 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling url v2.2.2 [INFO] [stderr] Compiling shellexpand v2.1.2 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling string_cache_codegen v0.4.4 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling phf_generator v0.10.0 [INFO] [stderr] Compiling tokio-util v0.7.3 [INFO] [stderr] Compiling string_cache v0.7.5 [INFO] [stderr] Compiling string_cache_codegen v0.5.2 [INFO] [stderr] Compiling phf_codegen v0.10.0 [INFO] [stderr] Compiling markup5ever v0.11.0 [INFO] [stderr] Compiling unicode-linebreak v0.1.2 [INFO] [stderr] Compiling html5ever v0.22.5 [INFO] [stderr] Compiling textwrap v0.15.0 [INFO] [stderr] Compiling futures-macro v0.3.24 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Compiling html5ever v0.26.0 [INFO] [stderr] Compiling thiserror-impl v1.0.33 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling derive_builder_core v0.9.0 [INFO] [stderr] Compiling quick-xml v0.12.4 [INFO] [stderr] Compiling atom_syndication v0.6.0 [INFO] [stderr] Compiling webpki v0.22.0 [INFO] [stderr] Compiling sct v0.7.0 [INFO] [stderr] Compiling webpki-roots v0.22.4 [INFO] [stderr] Compiling structopt v0.3.26 [INFO] [stderr] Compiling tokio-rustls v0.23.4 [INFO] [stderr] Compiling thiserror v1.0.33 [INFO] [stderr] Compiling h2 v0.3.14 [INFO] [stderr] Compiling futures-executor v0.3.24 [INFO] [stderr] Compiling futures v0.3.24 [INFO] [stderr] Compiling hyper v0.14.20 [INFO] [stderr] Compiling chrono v0.4.22 [INFO] [stderr] Compiling string_cache v0.8.4 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling taskpaper v0.23.0 (/opt/rustwide/workdir/taskpaper) [INFO] [stderr] Compiling hyper-rustls v0.23.0 [INFO] [stderr] Compiling reqwest v0.11.11 [INFO] [stderr] Compiling markup5ever v0.7.5 [INFO] [stderr] Compiling xml5ever v0.17.0 [INFO] [stderr] Compiling diligent-date-parser v0.1.3 [INFO] [stderr] Compiling dtparse v1.3.0 [INFO] [stderr] Compiling atom_syndication v0.9.1 [INFO] [stderr] Compiling rss v1.10.0 [INFO] [stderr] Compiling html2text v0.4.2 [INFO] [stderr] Compiling syndication v0.5.0 [INFO] [stderr] Compiling soup v0.5.1 [INFO] [stderr] Compiling taskpaper_cli v0.23.0 (/opt/rustwide/workdir/taskpaper_cli) [INFO] [stdout] warning: unused variable: `mail` [INFO] [stdout] --> taskpaper_cli/src/to_inbox.rs:96:5 [INFO] [stdout] | [INFO] [stdout] 96 | mail: bool, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_mail` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 08s [INFO] running `Command { std: "docker" "inspect" "f65bfcb35eae6d3dcc846a628f34bd548140ddffe7ed9662e6ba1babc36f06d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f65bfcb35eae6d3dcc846a628f34bd548140ddffe7ed9662e6ba1babc36f06d3", kill_on_drop: false }` [INFO] [stdout] f65bfcb35eae6d3dcc846a628f34bd548140ddffe7ed9662e6ba1babc36f06d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6dfd564f7475dfa280abf615236a331c0a08bd5566bce420ec2be7780bb0f0f4 [INFO] running `Command { std: "docker" "start" "-a" "6dfd564f7475dfa280abf615236a331c0a08bd5566bce420ec2be7780bb0f0f4", kill_on_drop: false }` [INFO] [stderr] Compiling diff v0.1.13 [INFO] [stderr] Compiling yansi v0.5.1 [INFO] [stderr] Compiling taskpaper_cli v0.23.0 (/opt/rustwide/workdir/taskpaper_cli) [INFO] [stderr] Compiling pretty_assertions v1.3.0 [INFO] [stderr] Compiling taskpaper v0.23.0 (/opt/rustwide/workdir/taskpaper) [INFO] [stdout] warning: unused variable: `mail` [INFO] [stdout] --> taskpaper_cli/src/to_inbox.rs:96:5 [INFO] [stdout] | [INFO] [stdout] 96 | mail: bool, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_mail` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 6.09s [INFO] running `Command { std: "docker" "inspect" "6dfd564f7475dfa280abf615236a331c0a08bd5566bce420ec2be7780bb0f0f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dfd564f7475dfa280abf615236a331c0a08bd5566bce420ec2be7780bb0f0f4", kill_on_drop: false }` [INFO] [stdout] 6dfd564f7475dfa280abf615236a331c0a08bd5566bce420ec2be7780bb0f0f4