[INFO] cloning repository https://github.com/Initsnow/anki_chinese_poem_cards_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Initsnow/anki_chinese_poem_cards_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInitsnow%2Fanki_chinese_poem_cards_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInitsnow%2Fanki_chinese_poem_cards_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 732ff1a9a7c885c72285ff55a209c614fb31bfe8
[INFO] testing Initsnow/anki_chinese_poem_cards_generator against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInitsnow%2Fanki_chinese_poem_cards_generator" "/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/Initsnow/anki_chinese_poem_cards_generator
[INFO] finished tweaking git repo https://github.com/Initsnow/anki_chinese_poem_cards_generator
[INFO] tweaked toml for git repo https://github.com/Initsnow/anki_chinese_poem_cards_generator written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Initsnow/anki_chinese_poem_cards_generator on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Initsnow/anki_chinese_poem_cards_generator 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb3cf44a44978b87a060d7c7aaead6f385d64cfe735edde0d06d01869e0367da
[INFO] running `Command { std: "docker" "start" "-a" "fb3cf44a44978b87a060d7c7aaead6f385d64cfe735edde0d06d01869e0367da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb3cf44a44978b87a060d7c7aaead6f385d64cfe735edde0d06d01869e0367da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb3cf44a44978b87a060d7c7aaead6f385d64cfe735edde0d06d01869e0367da", kill_on_drop: false }`
[INFO] [stdout] fb3cf44a44978b87a060d7c7aaead6f385d64cfe735edde0d06d01869e0367da
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c2843a2e52c8fe3574d0868d502aaff82f561bb69bf003fa3d6e07df1e1f37
[INFO] running `Command { std: "docker" "start" "-a" "41c2843a2e52c8fe3574d0868d502aaff82f561bb69bf003fa3d6e07df1e1f37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling bytes v1.7.1
[INFO] [stderr]    Compiling cc v1.1.18
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling rustix v0.38.36
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling dtoa v1.0.9
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling indexmap v2.5.0
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling portable-atomic v1.7.0
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling servo_arc v0.3.0
[INFO] [stderr]    Compiling flate2 v1.0.33
[INFO] [stderr]    Compiling hashlink v0.7.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling anyhow v1.0.87
[INFO] [stderr]    Compiling rustls-pki-types v1.8.0
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling fastrand v2.1.1
[INFO] [stderr]    Compiling rustls-pemfile v2.1.3
[INFO] [stderr]    Compiling clap_builder v4.5.17
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling sync_wrapper v1.0.1
[INFO] [stderr]    Compiling bzip2 v0.4.4
[INFO] [stderr]    Compiling encoding_rs v0.8.34
[INFO] [stderr]    Compiling ipnet v2.10.0
[INFO] [stderr]    Compiling ego-tree v0.6.3
[INFO] [stderr]    Compiling unicode-blocks v0.1.9
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling words-count v0.1.6
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling indicatif v0.17.8
[INFO] [stderr]    Compiling fancy-regex v0.5.0
[INFO] [stderr]    Compiling tempfile v3.12.0
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling ramhorns-derive v0.10.2
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling html5ever v0.27.0
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]    Compiling clap_derive v4.5.13
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling logos v0.11.4
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ramhorns v0.10.2
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling zip v0.5.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling clap v4.5.17
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling selectors v0.25.0
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]    Compiling markup5ever v0.12.1
[INFO] [stderr]    Compiling cssparser v0.31.2
[INFO] [stderr]    Compiling tokio-util v0.7.12
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.4.6
[INFO] [stderr]    Compiling rusqlite v0.25.4
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling genanki-rs v0.4.0
[INFO] [stderr]    Compiling hyper v1.4.1
[INFO] [stderr]    Compiling scraper v0.20.0
[INFO] [stderr]    Compiling hyper-util v0.1.8
[INFO] [stderr]    Compiling hyper-tls v0.6.0
[INFO] [stderr]    Compiling reqwest v0.12.7
[INFO] [stderr]    Compiling anki_chinese_poem_cards_generator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `add_subdeck` is never used
[INFO] [stdout]    --> src/main.rs:294:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | impl ClozeDeck {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 294 |     fn add_subdeck(&mut self, name: &str, desc: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_subdeck` and `write_to_file` are never used
[INFO] [stdout]    --> src/main.rs:366:8
[INFO] [stdout]     |
[INFO] [stdout] 355 | impl SimpleDeck {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 366 |     fn add_subdeck(&mut self, name: &str, desc: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 412 |     fn write_to_file(&self, path: &str) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "41c2843a2e52c8fe3574d0868d502aaff82f561bb69bf003fa3d6e07df1e1f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c2843a2e52c8fe3574d0868d502aaff82f561bb69bf003fa3d6e07df1e1f37", kill_on_drop: false }`
[INFO] [stdout] 41c2843a2e52c8fe3574d0868d502aaff82f561bb69bf003fa3d6e07df1e1f37
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a4436ad277d0a0151ec2c8dbc3e43158d13a33923c2a82de9e3de0845a29127
[INFO] running `Command { std: "docker" "start" "-a" "1a4436ad277d0a0151ec2c8dbc3e43158d13a33923c2a82de9e3de0845a29127", kill_on_drop: false }`
[INFO] [stderr]    Compiling anki_chinese_poem_cards_generator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `add_subdeck` is never used
[INFO] [stdout]    --> src/main.rs:294:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | impl ClozeDeck {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 294 |     fn add_subdeck(&mut self, name: &str, desc: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_subdeck` and `write_to_file` are never used
[INFO] [stdout]    --> src/main.rs:366:8
[INFO] [stdout]     |
[INFO] [stdout] 355 | impl SimpleDeck {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 366 |     fn add_subdeck(&mut self, name: &str, desc: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 412 |     fn write_to_file(&self, path: &str) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "1a4436ad277d0a0151ec2c8dbc3e43158d13a33923c2a82de9e3de0845a29127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a4436ad277d0a0151ec2c8dbc3e43158d13a33923c2a82de9e3de0845a29127", kill_on_drop: false }`
[INFO] [stdout] 1a4436ad277d0a0151ec2c8dbc3e43158d13a33923c2a82de9e3de0845a29127
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e58028d440fa14128657d520bd2cb2edfdca88d2ddc67ea5d837e3121da90e8
[INFO] running `Command { std: "docker" "start" "-a" "7e58028d440fa14128657d520bd2cb2edfdca88d2ddc67ea5d837e3121da90e8", kill_on_drop: false }`
[INFO] [stderr] warning: method `add_subdeck` is never used
[INFO] [stderr]    --> src/main.rs:294:8
[INFO] [stderr]     |
[INFO] [stderr] 283 | impl ClozeDeck {
[INFO] [stderr]     | -------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 294 |     fn add_subdeck(&mut self, name: &str, desc: &str) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `add_subdeck` and `write_to_file` are never used
[INFO] [stderr]    --> src/main.rs:366:8
[INFO] [stderr]     |
[INFO] [stderr] 355 | impl SimpleDeck {
[INFO] [stderr]     | --------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 366 |     fn add_subdeck(&mut self, name: &str, desc: &str) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 412 |     fn write_to_file(&self, path: &str) -> Result<()> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `anki_chinese_poem_cards_generator` (bin "anki_chinese_poem_cards_generator" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/anki_chinese_poem_cards_generator-2635078c32172496)
[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" "7e58028d440fa14128657d520bd2cb2edfdca88d2ddc67ea5d837e3121da90e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e58028d440fa14128657d520bd2cb2edfdca88d2ddc67ea5d837e3121da90e8", kill_on_drop: false }`
[INFO] [stdout] 7e58028d440fa14128657d520bd2cb2edfdca88d2ddc67ea5d837e3121da90e8
