[INFO] cloning repository https://github.com/WonkySpecs/vocabulearn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WonkySpecs/vocabulearn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWonkySpecs%2Fvocabulearn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWonkySpecs%2Fvocabulearn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 435e355071c8d736b8b5f57716cc890d01e3aea2
[INFO] checking WonkySpecs/vocabulearn against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWonkySpecs%2Fvocabulearn" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WonkySpecs/vocabulearn on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WonkySpecs/vocabulearn
[INFO] finished tweaking git repo https://github.com/WonkySpecs/vocabulearn
[INFO] tweaked toml for git repo https://github.com/WonkySpecs/vocabulearn written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/WonkySpecs/vocabulearn 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded csv v1.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea41832cb400b854974c919bf86ebd44e082b1725d17249ad57ad9a0daebe673
[INFO] running `Command { std: "docker" "start" "-a" "ea41832cb400b854974c919bf86ebd44e082b1725d17249ad57ad9a0daebe673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea41832cb400b854974c919bf86ebd44e082b1725d17249ad57ad9a0daebe673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea41832cb400b854974c919bf86ebd44e082b1725d17249ad57ad9a0daebe673", kill_on_drop: false }`
[INFO] [stdout] ea41832cb400b854974c919bf86ebd44e082b1725d17249ad57ad9a0daebe673
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e4c4ad906c41820fce1be0f06fd4c84cef0898a8faecf350ce43ca6935e26dd
[INFO] running `Command { std: "docker" "start" "-a" "3e4c4ad906c41820fce1be0f06fd4c84cef0898a8faecf350ce43ca6935e26dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking vocabulearn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data.rs:109:57
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data.rs:109:57
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `labels`, `label_mapping`, `labels_file`, and `map_file` are never read
[INFO] [stdout]   --> src/data.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Vocab {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |     vocab: HashMap<usize, VocabItem>,
[INFO] [stdout] 46 |     labels: HashMap<usize, Label>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 47 |     label_mapping: Vec<ItemLabel>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 48 |     vocab_file: String,
[INFO] [stdout] 49 |     labels_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 50 |     map_file: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `labels`, `label_mapping`, `labels_file`, and `map_file` are never read
[INFO] [stdout]   --> src/data.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Vocab {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |     vocab: HashMap<usize, VocabItem>,
[INFO] [stdout] 46 |     labels: HashMap<usize, Label>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 47 |     label_mapping: Vec<ItemLabel>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 48 |     vocab_file: String,
[INFO] [stdout] 49 |     labels_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 50 |     map_file: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         self.save_vocab();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = self.save_vocab();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         self.save_vocab();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = self.save_vocab();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.20s
[INFO] running `Command { std: "docker" "inspect" "3e4c4ad906c41820fce1be0f06fd4c84cef0898a8faecf350ce43ca6935e26dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4c4ad906c41820fce1be0f06fd4c84cef0898a8faecf350ce43ca6935e26dd", kill_on_drop: false }`
[INFO] [stdout] 3e4c4ad906c41820fce1be0f06fd4c84cef0898a8faecf350ce43ca6935e26dd
[INFO] checking WonkySpecs/vocabulearn against try#7622c0f807a4e13c4db886a1681bf343795692df+rustflags=-Dnon_local_definitions for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWonkySpecs%2Fvocabulearn" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WonkySpecs/vocabulearn on toolchain 7622c0f807a4e13c4db886a1681bf343795692df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WonkySpecs/vocabulearn
[INFO] finished tweaking git repo https://github.com/WonkySpecs/vocabulearn
[INFO] tweaked toml for git repo https://github.com/WonkySpecs/vocabulearn written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/WonkySpecs/vocabulearn 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" "+7622c0f807a4e13c4db886a1681bf343795692df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdaa6d21034fd07aaeb60a66df5d9626567ea18d20b0799e75c1bb84d435b5a8
[INFO] running `Command { std: "docker" "start" "-a" "cdaa6d21034fd07aaeb60a66df5d9626567ea18d20b0799e75c1bb84d435b5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdaa6d21034fd07aaeb60a66df5d9626567ea18d20b0799e75c1bb84d435b5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdaa6d21034fd07aaeb60a66df5d9626567ea18d20b0799e75c1bb84d435b5a8", kill_on_drop: false }`
[INFO] [stdout] cdaa6d21034fd07aaeb60a66df5d9626567ea18d20b0799e75c1bb84d435b5a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dnon_local_definitions" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7081512a7b78a8c273b1cbe6a1c9b3892f9b03da1ff5d6db79f656c60f923036
[INFO] running `Command { std: "docker" "start" "-a" "7081512a7b78a8c273b1cbe6a1c9b3892f9b03da1ff5d6db79f656c60f923036", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking vocabulearn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data.rs:109:57
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data.rs:109:57
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn save_vocab(&self) -> std::result::Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `labels`, `label_mapping`, `labels_file`, and `map_file` are never read
[INFO] [stdout]   --> src/data.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Vocab {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |     vocab: HashMap<usize, VocabItem>,
[INFO] [stdout] 46 |     labels: HashMap<usize, Label>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 47 |     label_mapping: Vec<ItemLabel>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 48 |     vocab_file: String,
[INFO] [stdout] 49 |     labels_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 50 |     map_file: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `labels`, `label_mapping`, `labels_file`, and `map_file` are never read
[INFO] [stdout]   --> src/data.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Vocab {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |     vocab: HashMap<usize, VocabItem>,
[INFO] [stdout] 46 |     labels: HashMap<usize, Label>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 47 |     label_mapping: Vec<ItemLabel>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 48 |     vocab_file: String,
[INFO] [stdout] 49 |     labels_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 50 |     map_file: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_VocabItem`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: requested on the command line with `-D non-local-definitions`
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_VocabItem`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_LabelType`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_LabelType`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_Label`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_Label`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_ItemLabel`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_ItemLabel`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_VocabItem`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: requested on the command line with `-D non-local-definitions`
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_VocabItem`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_LabelType`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_LabelType`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_Label`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_Label`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_ItemLabel`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]   --> src/data.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[derive(Deserialize, Serialize, Debug)]
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_ItemLabel`
[INFO] [stdout]    = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         self.save_vocab();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = self.save_vocab();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         self.save_vocab();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = self.save_vocab();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = fs::rename(&self.vocab_file, archive_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = fs::rename(new_file, &self.vocab_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vocabulearn` (bin "vocabulearn" test) due to 9 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `vocabulearn` (bin "vocabulearn") due to 9 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7081512a7b78a8c273b1cbe6a1c9b3892f9b03da1ff5d6db79f656c60f923036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7081512a7b78a8c273b1cbe6a1c9b3892f9b03da1ff5d6db79f656c60f923036", kill_on_drop: false }`
[INFO] [stdout] 7081512a7b78a8c273b1cbe6a1c9b3892f9b03da1ff5d6db79f656c60f923036
